添加MQTT

.gitignore

@@ -40,4 +40,5 @@
 /Assets/GHZSDK/*
 /Assets/AVProPlayer/*
 /Assets/Immersal/*
-/Assets/NRSDK
+/Assets/NRSDK
+/Assets/MQTT/*

Assets/2.0/User/UserInfo.cs

@@ -10,6 +10,10 @@ public class UserInfo: Singleton<UserInfo>
     public string Token;
     //用户名字
     public string name;
+    //用户名字
+    public string Account;
+    //用户名字
+    public string Password;
     //用户拥有的场景
     public Dictionary<string, UserSceneItem> SceneList =new Dictionary<string, UserSceneItem>();
 

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Assets/MRNavigatorPro.unity

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Assets/Plugins/Android/AndroidManifest.xml

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-  <uses-sdk tools:overrideLibrary="com.nreal.glasses_sdk" />
-  <supports-screens android:smallScreens="true" android:normalScreens="true" android:largeScreens="true" android:xlargeScreens="true" android:anyDensity="true" />
-  <application android:theme="@style/UnityThemeSelector" android:icon="@mipmap/app_icon" android:label="@string/app_name">
-    <activity android:name="com.unity3d.player.UnityPlayerActivity">
-      <intent-filter>
-        <action android:name="android.intent.action.MAIN" />
-        <category android:name="android.intent.category.LAUNCHER" />
-      </intent-filter>
-    </activity>
-    <meta-data android:name="nreal_sdk" android:value="true" />
-    <meta-data android:name="com.nreal.supportDevices" android:value="NrealLight|NrealAir" />
-  </application>
-  <uses-permission android:name="android.permission.BLUETOOTH" />
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Assets/Script/MQTTClient.cs

@@ -0,0 +1,184 @@
+using LitJson;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Text;
+using UnityEngine;
+using uPLibrary.Networking.M2Mqtt.Messages;
+using static QTTManager;
+
+public class MQTTClient : MonoSingleton<MQTTClient>
+{
+    string front = "client/";
+    string id = ""; 
+    string username = "u@unity1";// 需要根据服务器设置
+    string password = null;// 需要根据服务器设置
+    string rid = "mqttx_b4c02ddc"; //其他人的ID
+    QTTManager qt;
+    // Start is called before the first frame update
+    void Start()
+    {
+    }
+    Queue<MqttMsgPublishEventArgs> rlist = new Queue<MqttMsgPublishEventArgs>();
+    private void OnReceived(MqttMsgPublishEventArgs obj)
+    {
+        rlist.Enqueue(obj);
+    }
+
+    private void OnConnecting()
+    {
+        Debug.Log("MQtt  连接中");
+    }
+
+    private void onSucceed()
+    {
+        Subscribe();
+    }
+
+
+
+    private void onFaild()
+    {
+        Debug.Log("MQtt  连接失败");
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        if (rlist.Count > 0)
+        {
+            for (int i = 0; i < rlist.Count; i++)
+            {
+                OnUnityReceived(rlist.Dequeue());
+            }
+        }
+    }
+    //MQTT接收到的数据
+    public void OnUnityReceived(MqttMsgPublishEventArgs obj)
+    {
+        string msg = Encoding.UTF8.GetString(obj.Message);
+        Debug.Log("uid => " + obj.Topic + ":\n" + msg);
+        try
+        {
+            JsonData data = JsonMapper.ToObject(msg);
+
+        }
+        catch
+        {
+            return;
+        }
+
+    }
+
+    private void OnDestroy()
+    {
+        DisConnect();
+    }
+
+
+    //连接
+    public void Connect()
+    {
+        if (DeviceType.type == "Phone")
+        {
+            id =UserInfo.Instance.Account + "_Phone";
+            rid = UserInfo.Instance.Account + "_Glasses";
+
+        }
+        else
+        {
+            id = UserInfo.Instance.Account + "_Glasses";
+            rid =  UserInfo.Instance.Account + "_Phone";
+        }
+        DisConnect();
+        qt = new QTTManager(id, username, password);
+        qt.Connect();
+        qt.ConnectionFailed += onFaild;
+        qt.ConnectionSucceeded += onSucceed;
+        qt.OnConnecting += OnConnecting;
+        qt.OnReceived += OnReceived;
+        qt.OnClose += OnClose;
+    }
+
+    private void OnClose(EventArgs obj)
+    {
+        Debug.Log("断开连接");
+    }
+
+    //断开连接
+    public void DisConnect()
+    {
+        if (qt != null && qt.IsConnect())
+            qt.DisConnect();
+
+    }
+    //订阅
+    public void Subscribe()
+    {
+        ushort s = qt.Subscribe(
+                        new string[]
+                        {
+                                "client/manage",
+                                front+id
+                        },
+                        new byte[]
+                        {
+                                MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE ,
+                                MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE,
+                                MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE
+
+                        });
+
+
+        StartCoroutine(sendCameraPos());
+    }
+
+    //眼镜端像手机端发送实时位置
+    IEnumerator sendCameraPos()
+    {
+        while (qt.IsConnect())
+        {
+            JsonData json = new JsonData();
+            json["type"] = "CamPos";
+            json["x"] = OpenXRCamera.Instance.head.position.x;
+            json["y"] = OpenXRCamera.Instance.head.position.y;
+            json["z"] = OpenXRCamera.Instance.head.position.z;
+            json["Sid"] = "sid";//选择的场景id
+            publish(Encoding.UTF8.GetBytes(json.ToJson()));
+            yield return new WaitForSeconds(0.1f);
+        }
+    }
+    //眼镜发送触发的景点
+    public void sendActiveSp(string spid,bool isOpen)
+    {
+        JsonData json = new JsonData();
+        json["type"] = "ActiveSp";
+        json["Sid"] = "sid";//选择的场景id
+        json["spid"] = spid;//景点id
+        json["isOpen"] = isOpen;//是否打开
+        publish(Encoding.UTF8.GetBytes(json.ToJson()));
+        Debug.Log("MQtt  发送manage");
+    }
+
+
+    //眼镜发送触发的视频
+    public void sendActiveVideo(string spid,string videoId, bool isplay,float jindu)
+    {
+        JsonData json = new JsonData();
+        json["type"] = "ActiveVideo";
+        json["Sid"] = "sid";//选择的场景id
+        json["spid"] = spid;//景点id
+        json["videoId"] = videoId;//视频id
+        json["isplay"] = isplay;//是否播放
+        json["jindu"] = jindu;//视频进度
+        publish(Encoding.UTF8.GetBytes(json.ToJson()));
+        Debug.Log("MQtt  发送manage");
+    }
+
+
+    void publish(byte[] bs)
+    {
+
+        qt.Publish(front + rid, bs, MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE, false);
+    }
+}

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Assets/Script/MQTTType.cs

@@ -0,0 +1,13 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class MQTTType
+{
+    public class MQTTCameraPos
+    {
+        public float x;
+        public float y;
+        public float z;
+    }
+}

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Assets/Scripts/MQTT/M2Mqtt/Exceptions.meta

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Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttClientException.cs

@@ -1,132 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-
-namespace uPLibrary.Networking.M2Mqtt.Exceptions
-{
-    /// <summary>
-    /// MQTT client exception
-    /// </summary>
-    public class MqttClientException : Exception
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="code">Error code</param>
-        public MqttClientException(MqttClientErrorCode errorCode)
-        {
-            this.errorCode = errorCode;
-        }
-
-        // error code
-        private MqttClientErrorCode errorCode;
-
-        /// <summary>
-        /// Error code
-        /// </summary>
-        public MqttClientErrorCode ErrorCode
-        {
-            get { return this.errorCode; }
-            set { this.errorCode = value; }
-        }
-    }
-
-    /// <summary>
-    /// MQTT client erroro code
-    /// </summary>
-    public enum MqttClientErrorCode
-    {
-        /// <summary>
-        /// Will error (topic, message or QoS level)
-        /// </summary>
-        WillWrong = 1,
-
-        /// <summary>
-        /// Keep alive period too large
-        /// </summary>
-        KeepAliveWrong,
-
-        /// <summary>
-        /// Topic contains wildcards
-        /// </summary>
-        TopicWildcard,
-
-        /// <summary>
-        /// Topic length wrong
-        /// </summary>
-        TopicLength,
-
-        /// <summary>
-        /// QoS level not allowed
-        /// </summary>
-        QosNotAllowed,
-
-        /// <summary>
-        /// Topics list empty for subscribe
-        /// </summary>
-        TopicsEmpty,
-
-        /// <summary>
-        /// Qos levels list empty for subscribe
-        /// </summary>
-        QosLevelsEmpty,
-
-        /// <summary>
-        /// Topics / Qos Levels not match in subscribe
-        /// </summary>
-        TopicsQosLevelsNotMatch,
-
-        /// <summary>
-        /// Wrong message from broker
-        /// </summary>
-        WrongBrokerMessage,
-
-        /// <summary>
-        /// Wrong Message Id
-        /// </summary>
-        WrongMessageId,
-
-        /// <summary>
-        /// Inflight queue is full
-        /// </summary>
-        InflightQueueFull,
-
-        // [v3.1.1]
-        /// <summary>
-        /// Invalid flag bits received 
-        /// </summary>
-        InvalidFlagBits,
-
-        // [v3.1.1]
-        /// <summary>
-        /// Invalid connect flags received
-        /// </summary>
-        InvalidConnectFlags,
-
-        // [v3.1.1]
-        /// <summary>
-        /// Invalid client id
-        /// </summary>
-        InvalidClientId,
-
-        // [v3.1.1]
-        /// <summary>
-        /// Invalid protocol name
-        /// </summary>
-        InvalidProtocolName
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttCommunicationException.cs

@@ -1,42 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-
-namespace uPLibrary.Networking.M2Mqtt.Exceptions
-{
-    /// <summary>
-    /// Exception due to error communication with broker on socket
-    /// </summary>
-    public class MqttCommunicationException : Exception
-    {
-        /// <summary>
-        /// Default constructor
-        /// </summary>
-        public MqttCommunicationException()
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="e">Inner Exception</param>
-        public MqttCommunicationException(Exception e)
-            : base(String.Empty, e)
-        {
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttConnectionException.cs

@@ -1,31 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-
-namespace uPLibrary.Networking.M2Mqtt.Exceptions
-{
-    /// <summary>
-    /// Connection to the broker exception
-    /// </summary>
-    public class MqttConnectionException : Exception
-    {
-        public MqttConnectionException(string message, Exception innerException)
-            : base(message, innerException)
-        {
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttConnectionException.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttTimeoutException.cs

@@ -1,27 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-
-namespace uPLibrary.Networking.M2Mqtt.Exceptions
-{
-    /// <summary>
-    /// Timeout on receiving from broker exception
-    /// </summary>
-    public class MqttTimeoutException : Exception
-    {
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Exceptions/MqttTimeoutException.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/IMqttNetworkChannel.cs

@@ -1,64 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using System.Text;
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// Interface for channel under MQTT library
-    /// </summary>
-    public interface IMqttNetworkChannel
-    {
-        /// <summary>
-        /// Data available on channel
-        /// </summary>
-        bool DataAvailable { get; }
-
-        /// <summary>
-        /// Receive data from the network channel
-        /// </summary>
-        /// <param name="buffer">Data buffer for receiving data</param>
-        /// <returns>Number of bytes received</returns>
-        int Receive(byte[] buffer);
-
-        /// <summary>
-        /// Receive data from the network channel with a specified timeout
-        /// </summary>
-        /// <param name="buffer">Data buffer for receiving data</param>
-        /// <param name="timeout">Timeout on receiving (in milliseconds)</param>
-        /// <returns>Number of bytes received</returns>
-        int Receive(byte[] buffer, int timeout);
-
-        /// <summary>
-        /// Send data on the network channel to the broker
-        /// </summary>
-        /// <param name="buffer">Data buffer to send</param>
-        /// <returns>Number of byte sent</returns>
-        int Send(byte[] buffer);
-
-        /// <summary>
-        /// Close the network channel
-        /// </summary>
-        void Close();
-
-        /// <summary>
-        /// Connect to remote server
-        /// </summary>
-        void Connect();
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/IMqttNetworkChannel.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Internal.meta

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Assets/Scripts/MQTT/M2Mqtt/Internal/InternalEvent.cs

@@ -1,25 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-namespace uPLibrary.Networking.M2Mqtt.Internal
-{
-    /// <summary>
-    /// Generic internal event for dispatching
-    /// </summary>
-    public abstract class InternalEvent
-    {
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Internal/InternalEvent.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Internal/MsgInternalEvent.cs

@@ -1,51 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Messages;
-
-namespace uPLibrary.Networking.M2Mqtt.Internal
-{
-    /// <summary>
-    /// Internal event with a message
-    /// </summary>
-    public class MsgInternalEvent : InternalEvent
-    {
-        #region Properties ...
-
-        /// <summary>
-        /// Related message
-        /// </summary>
-        public MqttMsgBase Message
-        {
-            get { return this.msg; }
-            set { this.msg = value; }
-        }
-
-        #endregion
-
-        // related message
-        protected MqttMsgBase msg;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="msg">Related message</param>
-        public MsgInternalEvent(MqttMsgBase msg)
-        {
-            this.msg = msg;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Internal/MsgInternalEvent.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Internal/MsgPublishedInternalEvent.cs

@@ -1,53 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Messages;
-
-namespace uPLibrary.Networking.M2Mqtt.Internal
-{
-    /// <summary>
-    /// Internal event for a published message
-    /// </summary>
-    public class MsgPublishedInternalEvent : MsgInternalEvent
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message published (or failed due to retries)
-        /// </summary>
-        public bool IsPublished
-        {
-            get { return this.isPublished; }
-            internal set { this.isPublished = value; }
-        }
-
-        #endregion
-
-        // published flag
-        bool isPublished;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="msg">Message published</param>
-        /// <param name="isPublished">Publish flag</param>
-        public MsgPublishedInternalEvent(MqttMsgBase msg, bool isPublished) 
-            : base(msg)
-        {
-            this.isPublished = isPublished;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Internal/MsgPublishedInternalEvent.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/M2Mqtt_LICENSE.txt

@@ -1,204 +0,0 @@
-Eclipse Public License - v 1.0
-
-THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
-LICENSE ("AGREEMENT"). ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM
-CONSTITUTES RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
-
-1. DEFINITIONS
-
-"Contribution" means:
-
-a) in the case of the initial Contributor, the initial code and documentation
-   distributed under this Agreement, and
-b) in the case of each subsequent Contributor:
-    i) changes to the Program, and
-   ii) additions to the Program;
-
-   where such changes and/or additions to the Program originate from and are
-   distributed by that particular Contributor. A Contribution 'originates'
-   from a Contributor if it was added to the Program by such Contributor
-   itself or anyone acting on such Contributor's behalf. Contributions do not
-   include additions to the Program which: (i) are separate modules of
-   software distributed in conjunction with the Program under their own
-   license agreement, and (ii) are not derivative works of the Program.
-
-"Contributor" means any person or entity that distributes the Program.
-
-"Licensed Patents" mean patent claims licensable by a Contributor which are
-necessarily infringed by the use or sale of its Contribution alone or when
-combined with the Program.
-
-"Program" means the Contributions distributed in accordance with this
-Agreement.
-
-"Recipient" means anyone who receives the Program under this Agreement,
-including all Contributors.
-
-2. GRANT OF RIGHTS
-  a) Subject to the terms of this Agreement, each Contributor hereby grants
-     Recipient a non-exclusive, worldwide, royalty-free copyright license to
-     reproduce, prepare derivative works of, publicly display, publicly
-     perform, distribute and sublicense the Contribution of such Contributor,
-     if any, and such derivative works, in source code and object code form.
-  b) Subject to the terms of this Agreement, each Contributor hereby grants
-     Recipient a non-exclusive, worldwide, royalty-free patent license under
-     Licensed Patents to make, use, sell, offer to sell, import and otherwise
-     transfer the Contribution of such Contributor, if any, in source code and
-     object code form. This patent license shall apply to the combination of
-     the Contribution and the Program if, at the time the Contribution is
-     added by the Contributor, such addition of the Contribution causes such
-     combination to be covered by the Licensed Patents. The patent license
-     shall not apply to any other combinations which include the Contribution.
-     No hardware per se is licensed hereunder.
-  c) Recipient understands that although each Contributor grants the licenses
-     to its Contributions set forth herein, no assurances are provided by any
-     Contributor that the Program does not infringe the patent or other
-     intellectual property rights of any other entity. Each Contributor
-     disclaims any liability to Recipient for claims brought by any other
-     entity based on infringement of intellectual property rights or
-     otherwise. As a condition to exercising the rights and licenses granted
-     hereunder, each Recipient hereby assumes sole responsibility to secure
-     any other intellectual property rights needed, if any. For example, if a
-     third party patent license is required to allow Recipient to distribute
-     the Program, it is Recipient's responsibility to acquire that license
-     before distributing the Program.
-  d) Each Contributor represents that to its knowledge it has sufficient
-     copyright rights in its Contribution, if any, to grant the copyright
-     license set forth in this Agreement.
-
-3. REQUIREMENTS
-
-A Contributor may choose to distribute the Program in object code form under
-its own license agreement, provided that:
-
-  a) it complies with the terms and conditions of this Agreement; and
-  b) its license agreement:
-      i) effectively disclaims on behalf of all Contributors all warranties
-         and conditions, express and implied, including warranties or
-         conditions of title and non-infringement, and implied warranties or
-         conditions of merchantability and fitness for a particular purpose;
-     ii) effectively excludes on behalf of all Contributors all liability for
-         damages, including direct, indirect, special, incidental and
-         consequential damages, such as lost profits;
-    iii) states that any provisions which differ from this Agreement are
-         offered by that Contributor alone and not by any other party; and
-     iv) states that source code for the Program is available from such
-         Contributor, and informs licensees how to obtain it in a reasonable
-         manner on or through a medium customarily used for software exchange.
-
-When the Program is made available in source code form:
-
-  a) it must be made available under this Agreement; and
-  b) a copy of this Agreement must be included with each copy of the Program.
-     Contributors may not remove or alter any copyright notices contained
-     within the Program.
-
-Each Contributor must identify itself as the originator of its Contribution,
-if
-any, in a manner that reasonably allows subsequent Recipients to identify the
-originator of the Contribution.
-
-4. COMMERCIAL DISTRIBUTION
-
-Commercial distributors of software may accept certain responsibilities with
-respect to end users, business partners and the like. While this license is
-intended to facilitate the commercial use of the Program, the Contributor who
-includes the Program in a commercial product offering should do so in a manner
-which does not create potential liability for other Contributors. Therefore,
-if a Contributor includes the Program in a commercial product offering, such
-Contributor ("Commercial Contributor") hereby agrees to defend and indemnify
-every other Contributor ("Indemnified Contributor") against any losses,
-damages and costs (collectively "Losses") arising from claims, lawsuits and
-other legal actions brought by a third party against the Indemnified
-Contributor to the extent caused by the acts or omissions of such Commercial
-Contributor in connection with its distribution of the Program in a commercial
-product offering. The obligations in this section do not apply to any claims
-or Losses relating to any actual or alleged intellectual property
-infringement. In order to qualify, an Indemnified Contributor must:
-a) promptly notify the Commercial Contributor in writing of such claim, and
-b) allow the Commercial Contributor to control, and cooperate with the
-Commercial Contributor in, the defense and any related settlement
-negotiations. The Indemnified Contributor may participate in any such claim at
-its own expense.
-
-For example, a Contributor might include the Program in a commercial product
-offering, Product X. That Contributor is then a Commercial Contributor. If
-that Commercial Contributor then makes performance claims, or offers
-warranties related to Product X, those performance claims and warranties are
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-Commercial Contributor would have to defend claims against the other
-Contributors related to those performance claims and warranties, and if a
-court requires any other Contributor to pay any damages as a result, the
-Commercial Contributor must pay those damages.
-
-5. NO WARRANTY
-
-EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, THE PROGRAM IS PROVIDED ON AN
-"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR
-IMPLIED INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE,
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-Recipient is solely responsible for determining the appropriateness of using
-and distributing the Program and assumes all risks associated with its
-exercise of rights under this Agreement , including but not limited to the
-risks and costs of program errors, compliance with applicable laws, damage to
-or loss of data, programs or equipment, and unavailability or interruption of
-operations.
-
-6. DISCLAIMER OF LIABILITY
-
-EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT, NEITHER RECIPIENT NOR ANY
-CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING WITHOUT LIMITATION
-LOST PROFITS), HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE PROGRAM OR THE
-EXERCISE OF ANY RIGHTS GRANTED HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY
-OF SUCH DAMAGES.
-
-7. GENERAL
-
-If any provision of this Agreement is invalid or unenforceable under
-applicable law, it shall not affect the validity or enforceability of the
-remainder of the terms of this Agreement, and without further action by the
-parties hereto, such provision shall be reformed to the minimum extent
-necessary to make such provision valid and enforceable.
-
-If Recipient institutes patent litigation against any entity (including a
-cross-claim or counterclaim in a lawsuit) alleging that the Program itself
-(excluding combinations of the Program with other software or hardware)
-infringes such Recipient's patent(s), then such Recipient's rights granted
-under Section 2(b) shall terminate as of the date such litigation is filed.
-
-All Recipient's rights under this Agreement shall terminate if it fails to
-comply with any of the material terms or conditions of this Agreement and does
-not cure such failure in a reasonable period of time after becoming aware of
-such noncompliance. If all Recipient's rights under this Agreement terminate,
-Recipient agrees to cease use and distribution of the Program as soon as
-reasonably practicable. However, Recipient's obligations under this Agreement
-and any licenses granted by Recipient relating to the Program shall continue
-and survive.
-
-Everyone is permitted to copy and distribute copies of this Agreement, but in
-order to avoid inconsistency the Agreement is copyrighted and may only be
-modified in the following manner. The Agreement Steward reserves the right to
-publish new versions (including revisions) of this Agreement from time to
-time. No one other than the Agreement Steward has the right to modify this
-Agreement. The Eclipse Foundation is the initial Agreement Steward. The
-Eclipse Foundation may assign the responsibility to serve as the Agreement
-Steward to a suitable separate entity. Each new version of the Agreement will
-be given a distinguishing version number. The Program (including
-Contributions) may always be distributed subject to the version of the
-Agreement under which it was received. In addition, after a new version of the
-Agreement is published, Contributor may elect to distribute the Program
-(including its Contributions) under the new version. Except as expressly
-stated in Sections 2(a) and 2(b) above, Recipient receives no rights or
-licenses to the intellectual property of any Contributor under this Agreement,
-whether expressly, by implication, estoppel or otherwise. All rights in the
-Program not expressly granted under this Agreement are reserved.
-
-This Agreement is governed by the laws of the State of New York and the
-intellectual property laws of the United States of America. No party to this
-Agreement will bring a legal action under this Agreement more than one year
-after the cause of action arose. Each party waives its rights to a jury trial in
-any resulting litigation.
-

Assets/Scripts/MQTT/M2Mqtt/M2Mqtt_LICENSE.txt.meta

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Assets/Scripts/MQTT/M2Mqtt/Messages.meta

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Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgBase.cs

@@ -1,275 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using System.Text;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Base class for all MQTT messages
-    /// </summary>
-    public abstract class MqttMsgBase
-    {
-        #region Constants...
-
-        // mask, offset and size for fixed header fields
-        internal const byte MSG_TYPE_MASK = 0xF0;
-        internal const byte MSG_TYPE_OFFSET = 0x04;
-        internal const byte MSG_TYPE_SIZE = 0x04;
-        internal const byte MSG_FLAG_BITS_MASK = 0x0F;      // [v3.1.1]
-        internal const byte MSG_FLAG_BITS_OFFSET = 0x00;    // [v3.1.1]
-        internal const byte MSG_FLAG_BITS_SIZE = 0x04;      // [v3.1.1]
-        internal const byte DUP_FLAG_MASK = 0x08;
-        internal const byte DUP_FLAG_OFFSET = 0x03;
-        internal const byte DUP_FLAG_SIZE = 0x01;
-        internal const byte QOS_LEVEL_MASK = 0x06;
-        internal const byte QOS_LEVEL_OFFSET = 0x01;
-        internal const byte QOS_LEVEL_SIZE = 0x02;
-        internal const byte RETAIN_FLAG_MASK = 0x01;
-        internal const byte RETAIN_FLAG_OFFSET = 0x00;
-        internal const byte RETAIN_FLAG_SIZE = 0x01;
-
-        // MQTT message types
-        internal const byte MQTT_MSG_CONNECT_TYPE = 0x01;
-        internal const byte MQTT_MSG_CONNACK_TYPE = 0x02;
-        internal const byte MQTT_MSG_PUBLISH_TYPE = 0x03;
-        internal const byte MQTT_MSG_PUBACK_TYPE = 0x04;
-        internal const byte MQTT_MSG_PUBREC_TYPE = 0x05;
-        internal const byte MQTT_MSG_PUBREL_TYPE = 0x06;
-        internal const byte MQTT_MSG_PUBCOMP_TYPE = 0x07;
-        internal const byte MQTT_MSG_SUBSCRIBE_TYPE = 0x08;
-        internal const byte MQTT_MSG_SUBACK_TYPE = 0x09;
-        internal const byte MQTT_MSG_UNSUBSCRIBE_TYPE = 0x0A;
-        internal const byte MQTT_MSG_UNSUBACK_TYPE = 0x0B;
-        internal const byte MQTT_MSG_PINGREQ_TYPE = 0x0C;
-        internal const byte MQTT_MSG_PINGRESP_TYPE = 0x0D;
-        internal const byte MQTT_MSG_DISCONNECT_TYPE = 0x0E;
-
-        // [v3.1.1] MQTT flag bits
-        internal const byte MQTT_MSG_CONNECT_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_CONNACK_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_PUBLISH_FLAG_BITS = 0x00; // just defined as 0x00 but depends on publish props (dup, qos, retain) 
-        internal const byte MQTT_MSG_PUBACK_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_PUBREC_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_PUBREL_FLAG_BITS = 0x02;
-        internal const byte MQTT_MSG_PUBCOMP_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_SUBSCRIBE_FLAG_BITS = 0x02;
-        internal const byte MQTT_MSG_SUBACK_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_UNSUBSCRIBE_FLAG_BITS = 0x02;
-        internal const byte MQTT_MSG_UNSUBACK_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_PINGREQ_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_PINGRESP_FLAG_BITS = 0x00;
-        internal const byte MQTT_MSG_DISCONNECT_FLAG_BITS = 0x00;
-
-        // QOS levels
-        public const byte QOS_LEVEL_AT_MOST_ONCE = 0x00;
-        public const byte QOS_LEVEL_AT_LEAST_ONCE = 0x01;
-        public const byte QOS_LEVEL_EXACTLY_ONCE = 0x02;
-
-        // SUBSCRIBE QoS level granted failure [v3.1.1]
-        public const byte QOS_LEVEL_GRANTED_FAILURE = 0x80;
-
-        internal const ushort MAX_TOPIC_LENGTH = 65535;
-        internal const ushort MIN_TOPIC_LENGTH = 1;
-        internal const byte MESSAGE_ID_SIZE = 2;
-
-        #endregion
-
-        #region Properties...
-
-        /// <summary>
-        /// Message type
-        /// </summary>
-        public byte Type
-        {
-            get { return this.type; }
-            set { this.type = value; }
-        }
-
-        /// <summary>
-        /// Duplicate message flag
-        /// </summary>
-        public bool DupFlag
-        {
-            get { return this.dupFlag; }
-            set { this.dupFlag = value; }
-        }
-
-        /// <summary>
-        /// Quality of Service level
-        /// </summary>
-        public byte QosLevel
-        {
-            get { return this.qosLevel; }
-            set { this.qosLevel = value; }
-        }
-
-        /// <summary>
-        /// Retain message flag
-        /// </summary>
-        public bool Retain
-        {
-            get { return this.retain; }
-            set { this.retain = value; }
-        }
-
-        /// <summary>
-        /// Message identifier for the message
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            set { this.messageId = value; }
-        }
-
-        #endregion
-
-        // message type
-        protected byte type;
-        // duplicate delivery
-        protected bool dupFlag;
-        // quality of service level
-        protected byte qosLevel;
-        // retain flag
-        protected bool retain;
-        // message identifier
-        protected ushort messageId;
-
-        /// <summary>
-        /// Returns message bytes rapresentation
-        /// </summary>
-        /// <param name="protocolVersion">Protocol version</param>
-        /// <returns>Bytes rapresentation</returns>
-        public abstract byte[] GetBytes(byte protocolVersion);
-        
-        /// <summary>
-        /// Encode remaining length and insert it into message buffer
-        /// </summary>
-        /// <param name="remainingLength">Remaining length value to encode</param>
-        /// <param name="buffer">Message buffer for inserting encoded value</param>
-        /// <param name="index">Index from which insert encoded value into buffer</param>
-        /// <returns>Index updated</returns>
-        protected int encodeRemainingLength(int remainingLength, byte[] buffer, int index)
-        {
-            int digit = 0;
-            do
-            {
-                digit = remainingLength % 128;
-                remainingLength /= 128;
-                if (remainingLength > 0)
-                    digit = digit | 0x80;
-                buffer[index++] = (byte)digit;
-            } while (remainingLength > 0);
-            return index;
-        }
-
-        /// <summary>
-        /// Decode remaining length reading bytes from socket
-        /// </summary>
-        /// <param name="channel">Channel from reading bytes</param>
-        /// <returns>Decoded remaining length</returns>
-        protected static int decodeRemainingLength(IMqttNetworkChannel channel)
-        {
-            int multiplier = 1;
-            int value = 0;
-            int digit = 0;
-            byte[] nextByte = new byte[1];
-            do
-            {
-                // next digit from stream
-                channel.Receive(nextByte);
-                digit = nextByte[0];
-                value += ((digit & 127) * multiplier);
-                multiplier *= 128;
-            } while ((digit & 128) != 0);
-            return value;
-        }
-
-#if TRACE
-        /// <summary>
-        /// Returns a string representation of the message for tracing
-        /// </summary>
-        /// <param name="name">Message name</param>
-        /// <param name="fieldNames">Message fields name</param>
-        /// <param name="fieldValues">Message fields value</param>
-        /// <returns>String representation of the message</returns>
-        protected string GetTraceString(string name, object[] fieldNames, object[] fieldValues)
-        {
-            StringBuilder sb = new StringBuilder();
-            sb.Append(name);
-            
-            if ((fieldNames != null) && (fieldValues != null))
-            {
-                sb.Append("(");
-                bool addComma = false;
-                for (int i = 0; i < fieldValues.Length; i++)
-                {
-                    if (fieldValues[i] != null)
-                    {
-                        if (addComma)
-                        {
-                            sb.Append(",");
-                        }
-
-                        sb.Append(fieldNames[i]);
-                        sb.Append(":");
-                        sb.Append(GetStringObject(fieldValues[i]));
-                        addComma = true;
-                    }
-                }
-                sb.Append(")");
-            }
-            
-            return sb.ToString();
-        }
-
-        object GetStringObject(object value)
-        {
-            byte[] binary = value as byte[];
-            if (binary != null)
-            {
-                string hexChars = "0123456789ABCDEF";
-                StringBuilder sb = new StringBuilder(binary.Length * 2);
-                for (int i = 0; i < binary.Length; ++i)
-                {
-                    sb.Append(hexChars[binary[i] >> 4]);
-                    sb.Append(hexChars[binary[i] & 0x0F]);
-                }
-
-                return sb.ToString();
-            }
-
-            object[] list = value as object[];
-            if (list != null)
-            {
-                StringBuilder sb = new StringBuilder();
-                sb.Append('[');
-                for (int i = 0; i < list.Length; ++i)
-                {
-                    if (i > 0) sb.Append(',');
-                    sb.Append(list[i]);
-                }
-                sb.Append(']');
-
-                return sb.ToString();
-            }
-
-            return value;
-        }
-#endif
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgBase.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnack.cs

@@ -1,191 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for CONNACK message from broker to client
-    /// </summary>
-    public class MqttMsgConnack : MqttMsgBase
-    {
-        #region Constants...
-
-        // return codes for CONNACK message
-        public const byte CONN_ACCEPTED = 0x00;
-        public const byte CONN_REFUSED_PROT_VERS = 0x01;
-        public const byte CONN_REFUSED_IDENT_REJECTED = 0x02;
-        public const byte CONN_REFUSED_SERVER_UNAVAILABLE = 0x03;
-        public const byte CONN_REFUSED_USERNAME_PASSWORD = 0x04;
-        public const byte CONN_REFUSED_NOT_AUTHORIZED = 0x05;
-
-        private const byte TOPIC_NAME_COMP_RESP_BYTE_OFFSET = 0;
-        private const byte TOPIC_NAME_COMP_RESP_BYTE_SIZE = 1;
-        // [v3.1.1] connect acknowledge flags replace "old" topic name compression respone (not used in 3.1)
-        private const byte CONN_ACK_FLAGS_BYTE_OFFSET = 0;
-        private const byte CONN_ACK_FLAGS_BYTE_SIZE = 1;
-        // [v3.1.1] session present flag
-        private const byte SESSION_PRESENT_FLAG_MASK = 0x01;
-        private const byte SESSION_PRESENT_FLAG_OFFSET = 0x00;
-        private const byte SESSION_PRESENT_FLAG_SIZE = 0x01;
-        private const byte CONN_RETURN_CODE_BYTE_OFFSET = 1;
-        private const byte CONN_RETURN_CODE_BYTE_SIZE = 1;
-
-        #endregion
-
-        #region Properties...
-
-        // [v3.1.1] session present flag
-        /// <summary>
-        /// Session present flag
-        /// </summary>
-        public bool SessionPresent
-        {
-            get { return this.sessionPresent; }
-            set { this.sessionPresent = value; }
-        }
-
-        /// <summary>
-        /// Return Code
-        /// </summary>
-        public byte ReturnCode
-        {
-            get { return this.returnCode; }
-            set { this.returnCode = value; }
-        }
-
-        #endregion
-
-        // [v3.1.1] session present flag
-        private bool sessionPresent;
-
-        // return code for CONNACK message
-        private byte returnCode;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgConnack()
-        {
-            this.type = MQTT_MSG_CONNACK_TYPE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a CONNACK message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>CONNACK message instance</returns>
-        public static MqttMsgConnack Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            MqttMsgConnack msg = new MqttMsgConnack();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_CONNACK_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] ... set session present flag ...
-                msg.sessionPresent = (buffer[CONN_ACK_FLAGS_BYTE_OFFSET] & SESSION_PRESENT_FLAG_MASK) != 0x00;
-            }
-            // ...and set return code from broker
-            msg.returnCode = buffer[CONN_RETURN_CODE_BYTE_OFFSET];
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte ProtocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            if (ProtocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                // flags byte and connect return code
-                varHeaderSize += (CONN_ACK_FLAGS_BYTE_SIZE + CONN_RETURN_CODE_BYTE_SIZE);
-            else
-                // topic name compression response and connect return code
-                varHeaderSize += (TOPIC_NAME_COMP_RESP_BYTE_SIZE + CONN_RETURN_CODE_BYTE_SIZE);
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (ProtocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_CONNACK_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_CONNACK_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (byte)(MQTT_MSG_CONNACK_TYPE << MSG_TYPE_OFFSET);
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            if (ProtocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                // [v3.1.1] session present flag
-                buffer[index++] = this.sessionPresent ? (byte)(1 << SESSION_PRESENT_FLAG_OFFSET) : (byte)0x00;
-            else
-                // topic name compression response (reserved values. not used);
-                buffer[index++] = 0x00;
-            
-            // connect return code
-            buffer[index++] = this.returnCode;
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "CONNACK",
-                new object[] { "returnCode" },
-                new object[] { this.returnCode });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnack.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnect.cs

@@ -1,582 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using System.Text;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for CONNECT message from client to broker
-    /// </summary>
-    public class MqttMsgConnect : MqttMsgBase
-    {
-        #region Constants...
-
-        // protocol name supported
-        internal const string PROTOCOL_NAME_V3_1 = "MQIsdp";
-        internal const string PROTOCOL_NAME_V3_1_1 = "MQTT"; // [v.3.1.1]
-        
-        // max length for client id (removed in 3.1.1)
-        internal const int CLIENT_ID_MAX_LENGTH = 23;
-
-        // variable header fields
-        internal const byte PROTOCOL_NAME_LEN_SIZE = 2;
-        internal const byte PROTOCOL_NAME_V3_1_SIZE = 6;
-        internal const byte PROTOCOL_NAME_V3_1_1_SIZE = 4; // [v.3.1.1]
-        internal const byte PROTOCOL_VERSION_SIZE = 1;
-        internal const byte CONNECT_FLAGS_SIZE = 1;
-        internal const byte KEEP_ALIVE_TIME_SIZE = 2;
-
-        internal const byte PROTOCOL_VERSION_V3_1 = 0x03;
-        internal const byte PROTOCOL_VERSION_V3_1_1 = 0x04; // [v.3.1.1]
-        internal const ushort KEEP_ALIVE_PERIOD_DEFAULT = 60; // seconds
-        internal const ushort MAX_KEEP_ALIVE = 65535; // 16 bit
-
-        // connect flags
-        internal const byte USERNAME_FLAG_MASK = 0x80;
-        internal const byte USERNAME_FLAG_OFFSET = 0x07;
-        internal const byte USERNAME_FLAG_SIZE = 0x01;
-        internal const byte PASSWORD_FLAG_MASK = 0x40;
-        internal const byte PASSWORD_FLAG_OFFSET = 0x06;
-        internal const byte PASSWORD_FLAG_SIZE = 0x01;
-        internal const byte WILL_RETAIN_FLAG_MASK = 0x20;
-        internal const byte WILL_RETAIN_FLAG_OFFSET = 0x05;
-        internal const byte WILL_RETAIN_FLAG_SIZE = 0x01;
-        internal const byte WILL_QOS_FLAG_MASK = 0x18;
-        internal const byte WILL_QOS_FLAG_OFFSET = 0x03;
-        internal const byte WILL_QOS_FLAG_SIZE = 0x02;
-        internal const byte WILL_FLAG_MASK = 0x04;
-        internal const byte WILL_FLAG_OFFSET = 0x02;
-        internal const byte WILL_FLAG_SIZE = 0x01;
-        internal const byte CLEAN_SESSION_FLAG_MASK = 0x02;
-        internal const byte CLEAN_SESSION_FLAG_OFFSET = 0x01;
-        internal const byte CLEAN_SESSION_FLAG_SIZE = 0x01;
-        // [v.3.1.1] lsb (reserved) must be now 0
-        internal const byte RESERVED_FLAG_MASK = 0x01;
-        internal const byte RESERVED_FLAG_OFFSET = 0x00;
-        internal const byte RESERVED_FLAG_SIZE = 0x01;
-
-        #endregion
-
-        #region Properties...
-
-        /// <summary>
-        /// Protocol name
-        /// </summary>
-        public string ProtocolName
-        {
-            get { return this.protocolName; }
-            set { this.protocolName = value; }
-        }
-
-        /// <summary>
-        /// Protocol version
-        /// </summary>
-        public byte ProtocolVersion
-        {
-            get { return this.protocolVersion; }
-            set { this.protocolVersion = value; }
-        }
-
-        /// <summary>
-        /// Client identifier
-        /// </summary>
-        public string ClientId
-        {
-            get { return this.clientId; }
-            set { this.clientId = value; }
-        }
-
-        /// <summary>
-        /// Will retain flag
-        /// </summary>
-        public bool WillRetain
-        {
-            get { return this.willRetain; }
-            set { this.willRetain = value; }
-        }
-
-        /// <summary>
-        /// Will QOS level
-        /// </summary>
-        public byte WillQosLevel
-        {
-            get { return this.willQosLevel; }
-            set { this.willQosLevel = value; }
-        }
-
-        /// <summary>
-        /// Will flag
-        /// </summary>
-        public bool WillFlag
-        {
-            get { return this.willFlag; }
-            set { this.willFlag = value; }
-        }
-
-        /// <summary>
-        /// Will topic
-        /// </summary>
-        public string WillTopic
-        {
-            get { return this.willTopic; }
-            set { this.willTopic = value; }
-        }
-
-        /// <summary>
-        /// Will message
-        /// </summary>
-        public string WillMessage
-        {
-            get { return this.willMessage; }
-            set { this.willMessage = value; }
-        }
-
-        /// <summary>
-        /// Username
-        /// </summary>
-        public string Username
-        {
-            get { return this.username; }
-            set { this.username = value; }
-        }
-
-        /// <summary>
-        /// Password
-        /// </summary>
-        public string Password
-        {
-            get { return this.password; }
-            set { this.password = value; }
-        }
-
-        /// <summary>
-        /// Clean session flag
-        /// </summary>
-        public bool CleanSession
-        {
-            get { return this.cleanSession; }
-            set { this.cleanSession = value; }
-        }
-
-        /// <summary>
-        /// Keep alive period
-        /// </summary>
-        public ushort KeepAlivePeriod
-        {
-            get { return this.keepAlivePeriod; }
-            set { this.keepAlivePeriod = value; }
-        }
-
-        #endregion
-
-        // protocol name
-        private string protocolName;
-        // protocol version
-        private byte protocolVersion;
-        // client identifier
-        private string clientId;
-        // will retain flag
-        protected bool willRetain;
-        // will quality of service level
-        protected byte willQosLevel;
-        // will flag
-        private bool willFlag;
-        // will topic
-        private string willTopic;
-        // will message
-        private string willMessage;
-        // username
-        private string username;
-        // password
-        private string password;
-        // clean session flag
-        private bool cleanSession;
-        // keep alive period (in sec)
-        private ushort keepAlivePeriod;
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgConnect()
-        {
-            this.type = MQTT_MSG_CONNECT_TYPE;
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        public MqttMsgConnect(string clientId) :
-            this(clientId, null, null, false, QOS_LEVEL_AT_LEAST_ONCE, false, null, null, true, KEEP_ALIVE_PERIOD_DEFAULT, PROTOCOL_VERSION_V3_1_1)
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        /// <param name="username">Username</param>
-        /// <param name="password">Password</param>
-        /// <param name="willRetain">Will retain flag</param>
-        /// <param name="willQosLevel">Will QOS level</param>
-        /// <param name="willFlag">Will flag</param>
-        /// <param name="willTopic">Will topic</param>
-        /// <param name="willMessage">Will message</param>
-        /// <param name="cleanSession">Clean sessione flag</param>
-        /// <param name="keepAlivePeriod">Keep alive period</param>
-        /// <param name="protocolVersion">Protocol version</param>
-        public MqttMsgConnect(string clientId, 
-            string username, 
-            string password,
-            bool willRetain,
-            byte willQosLevel,
-            bool willFlag,
-            string willTopic,
-            string willMessage,
-            bool cleanSession,
-            ushort keepAlivePeriod,
-            byte protocolVersion
-            )
-        {
-            this.type = MQTT_MSG_CONNECT_TYPE;
-
-            this.clientId = clientId;
-            this.username = username;
-            this.password = password;
-            this.willRetain = willRetain;
-            this.willQosLevel = willQosLevel;
-            this.willFlag = willFlag;
-            this.willTopic = willTopic;
-            this.willMessage = willMessage;
-            this.cleanSession = cleanSession;
-            this.keepAlivePeriod = keepAlivePeriod;
-            // [v.3.1.1] added new protocol name and version
-            this.protocolVersion = protocolVersion;
-            this.protocolName = (this.protocolVersion == PROTOCOL_VERSION_V3_1_1) ? PROTOCOL_NAME_V3_1_1 : PROTOCOL_NAME_V3_1;
-        }
-
-        /// <summary>
-        /// Parse bytes for a CONNECT message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>CONNECT message instance</returns>
-        public static MqttMsgConnect Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            int protNameUtf8Length;
-            byte[] protNameUtf8;
-            bool isUsernameFlag;
-            bool isPasswordFlag;
-            int clientIdUtf8Length;
-            byte[] clientIdUtf8;
-            int willTopicUtf8Length;
-            byte[] willTopicUtf8;
-            int willMessageUtf8Length;
-            byte[] willMessageUtf8;
-            int usernameUtf8Length;
-            byte[] usernameUtf8;
-            int passwordUtf8Length;
-            byte[] passwordUtf8;
-            MqttMsgConnect msg = new MqttMsgConnect();
-            
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // protocol name
-            protNameUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-            protNameUtf8Length |= buffer[index++];
-            protNameUtf8 = new byte[protNameUtf8Length];
-            Array.Copy(buffer, index, protNameUtf8, 0, protNameUtf8Length);
-            index += protNameUtf8Length;
-            msg.protocolName = new String(Encoding.UTF8.GetChars(protNameUtf8));
-
-            // [v3.1.1] wrong protocol name
-            if (!msg.protocolName.Equals(PROTOCOL_NAME_V3_1) && !msg.protocolName.Equals(PROTOCOL_NAME_V3_1_1))
-                throw new MqttClientException(MqttClientErrorCode.InvalidProtocolName);
-
-            // protocol version
-            msg.protocolVersion = buffer[index];
-            index += PROTOCOL_VERSION_SIZE;
-
-            // connect flags
-            // [v3.1.1] check lsb (reserved) must be 0
-            if ((msg.protocolVersion == PROTOCOL_VERSION_V3_1_1) &&
-                ((buffer[index] & RESERVED_FLAG_MASK) != 0x00))
-                throw new MqttClientException(MqttClientErrorCode.InvalidConnectFlags);
-
-            isUsernameFlag = (buffer[index] & USERNAME_FLAG_MASK) != 0x00;
-            isPasswordFlag = (buffer[index] & PASSWORD_FLAG_MASK) != 0x00;
-            msg.willRetain = (buffer[index] & WILL_RETAIN_FLAG_MASK) != 0x00;
-            msg.willQosLevel = (byte)((buffer[index] & WILL_QOS_FLAG_MASK) >> WILL_QOS_FLAG_OFFSET);
-            msg.willFlag = (buffer[index] & WILL_FLAG_MASK) != 0x00;
-            msg.cleanSession = (buffer[index] & CLEAN_SESSION_FLAG_MASK) != 0x00;
-            index += CONNECT_FLAGS_SIZE;
-
-            // keep alive timer
-            msg.keepAlivePeriod = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.keepAlivePeriod |= buffer[index++];
-
-            // client identifier [v3.1.1] it may be zero bytes long (empty string)
-            clientIdUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-            clientIdUtf8Length |= buffer[index++];
-            clientIdUtf8 = new byte[clientIdUtf8Length];
-            Array.Copy(buffer, index, clientIdUtf8, 0, clientIdUtf8Length);
-            index += clientIdUtf8Length;
-            msg.clientId = new String(Encoding.UTF8.GetChars(clientIdUtf8));
-            // [v3.1.1] if client identifier is zero bytes long, clean session must be true
-            if ((msg.protocolVersion == PROTOCOL_VERSION_V3_1_1) && (clientIdUtf8Length == 0) && (!msg.cleanSession))
-                throw new MqttClientException(MqttClientErrorCode.InvalidClientId);
-
-            // will topic and will message
-            if (msg.willFlag)
-            {
-                willTopicUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                willTopicUtf8Length |= buffer[index++];
-                willTopicUtf8 = new byte[willTopicUtf8Length];
-                Array.Copy(buffer, index, willTopicUtf8, 0, willTopicUtf8Length);
-                index += willTopicUtf8Length;
-                msg.willTopic = new String(Encoding.UTF8.GetChars(willTopicUtf8));
-
-                willMessageUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                willMessageUtf8Length |= buffer[index++];
-                willMessageUtf8 = new byte[willMessageUtf8Length];
-                Array.Copy(buffer, index, willMessageUtf8, 0, willMessageUtf8Length);
-                index += willMessageUtf8Length;
-                msg.willMessage = new String(Encoding.UTF8.GetChars(willMessageUtf8));
-            }
-
-            // username
-            if (isUsernameFlag)
-            {
-                usernameUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                usernameUtf8Length |= buffer[index++];
-                usernameUtf8 = new byte[usernameUtf8Length];
-                Array.Copy(buffer, index, usernameUtf8, 0, usernameUtf8Length);
-                index += usernameUtf8Length;
-                msg.username = new String(Encoding.UTF8.GetChars(usernameUtf8));
-            }
-
-            // password
-            if (isPasswordFlag)
-            {
-                passwordUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                passwordUtf8Length |= buffer[index++];
-                passwordUtf8 = new byte[passwordUtf8Length];
-                Array.Copy(buffer, index, passwordUtf8, 0, passwordUtf8Length);
-                index += passwordUtf8Length;
-                msg.password = new String(Encoding.UTF8.GetChars(passwordUtf8));
-            }
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            byte[] clientIdUtf8 = Encoding.UTF8.GetBytes(this.clientId);
-            byte[] willTopicUtf8 = (this.willFlag && (this.willTopic != null)) ? Encoding.UTF8.GetBytes(this.willTopic) : null;
-            byte[] willMessageUtf8 = (this.willFlag && (this.willMessage != null)) ? Encoding.UTF8.GetBytes(this.willMessage) : null;
-            byte[] usernameUtf8 = ((this.username != null) && (this.username.Length > 0)) ? Encoding.UTF8.GetBytes(this.username) : null;
-            byte[] passwordUtf8 = ((this.password != null) && (this.password.Length > 0)) ? Encoding.UTF8.GetBytes(this.password) : null;
-
-            // [v3.1.1]
-            if (this.protocolVersion == PROTOCOL_VERSION_V3_1_1)
-            {
-                // will flag set, will topic and will message MUST be present
-                if (this.willFlag &&  ((this.willQosLevel >= 0x03) ||
-                                       (willTopicUtf8 == null) || (willMessageUtf8 == null) ||
-                                       ((willTopicUtf8 != null) && (willTopicUtf8.Length == 0)) || 
-                                       ((willMessageUtf8 != null) && (willMessageUtf8.Length == 0))))
-                    throw new MqttClientException(MqttClientErrorCode.WillWrong);
-                // willflag not set, retain must be 0 and will topic and message MUST NOT be present
-                else if (!this.willFlag && ((this.willRetain) ||
-                                            (willTopicUtf8 != null) || (willMessageUtf8 != null) ||
-                                            ((willTopicUtf8 != null) && (willTopicUtf8.Length != 0)) || 
-                                            ((willMessageUtf8 != null) && (willMessageUtf8.Length != 0))))
-                    throw new MqttClientException(MqttClientErrorCode.WillWrong);
-            }
-
-            if (this.keepAlivePeriod > MAX_KEEP_ALIVE)
-                throw new MqttClientException(MqttClientErrorCode.KeepAliveWrong);
-
-            // check on will QoS Level
-            if ((this.willQosLevel < MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE) ||
-                (this.willQosLevel > MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE))
-                throw new MqttClientException(MqttClientErrorCode.WillWrong);
-
-            // protocol name field size
-            // MQTT version 3.1
-            if (this.protocolVersion == PROTOCOL_VERSION_V3_1)
-            {
-                varHeaderSize += (PROTOCOL_NAME_LEN_SIZE + PROTOCOL_NAME_V3_1_SIZE);
-            }
-            // MQTT version 3.1.1
-            else
-            {
-                varHeaderSize += (PROTOCOL_NAME_LEN_SIZE + PROTOCOL_NAME_V3_1_1_SIZE);
-            }
-            // protocol level field size
-            varHeaderSize += PROTOCOL_VERSION_SIZE;
-            // connect flags field size
-            varHeaderSize += CONNECT_FLAGS_SIZE;
-            // keep alive timer field size
-            varHeaderSize += KEEP_ALIVE_TIME_SIZE;
-
-            // client identifier field size
-            payloadSize += clientIdUtf8.Length + 2;
-            // will topic field size
-            payloadSize += (willTopicUtf8 != null) ? (willTopicUtf8.Length + 2) : 0;
-            // will message field size
-            payloadSize += (willMessageUtf8 != null) ? (willMessageUtf8.Length + 2) : 0;
-            // username field size
-            payloadSize += (usernameUtf8 != null) ? (usernameUtf8.Length + 2) : 0;
-            // password field size
-            payloadSize += (passwordUtf8 != null) ? (passwordUtf8.Length + 2) : 0;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            buffer[index++] = (MQTT_MSG_CONNECT_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_CONNECT_FLAG_BITS; // [v.3.1.1]
-
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // protocol name
-            buffer[index++] = 0; // MSB protocol name size
-            // MQTT version 3.1
-            if (this.protocolVersion == PROTOCOL_VERSION_V3_1)
-            {
-                buffer[index++] = PROTOCOL_NAME_V3_1_SIZE; // LSB protocol name size
-                Array.Copy(Encoding.UTF8.GetBytes(PROTOCOL_NAME_V3_1), 0, buffer, index, PROTOCOL_NAME_V3_1_SIZE);
-                index += PROTOCOL_NAME_V3_1_SIZE;
-                // protocol version
-                buffer[index++] = PROTOCOL_VERSION_V3_1;
-            }
-            // MQTT version 3.1.1
-            else
-            {
-                buffer[index++] = PROTOCOL_NAME_V3_1_1_SIZE; // LSB protocol name size
-                Array.Copy(Encoding.UTF8.GetBytes(PROTOCOL_NAME_V3_1_1), 0, buffer, index, PROTOCOL_NAME_V3_1_1_SIZE);
-                index += PROTOCOL_NAME_V3_1_1_SIZE;
-                // protocol version
-                buffer[index++] = PROTOCOL_VERSION_V3_1_1;
-            }
-            
-            // connect flags
-            byte connectFlags = 0x00;
-            connectFlags |= (usernameUtf8 != null) ? (byte)(1 << USERNAME_FLAG_OFFSET) : (byte)0x00;
-            connectFlags |= (passwordUtf8 != null) ? (byte)(1 << PASSWORD_FLAG_OFFSET) : (byte)0x00;
-            connectFlags |= (this.willRetain) ? (byte)(1 << WILL_RETAIN_FLAG_OFFSET) : (byte)0x00;
-            // only if will flag is set, we have to use will QoS level (otherwise is MUST be 0)
-            if (this.willFlag)
-                connectFlags |= (byte)(this.willQosLevel << WILL_QOS_FLAG_OFFSET);
-            connectFlags |= (this.willFlag) ? (byte)(1 << WILL_FLAG_OFFSET) : (byte)0x00;
-            connectFlags |= (this.cleanSession) ? (byte)(1 << CLEAN_SESSION_FLAG_OFFSET) : (byte)0x00;
-            buffer[index++] = connectFlags;
-
-            // keep alive period
-            buffer[index++] = (byte)((this.keepAlivePeriod >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.keepAlivePeriod & 0x00FF); // LSB
-
-            // client identifier
-            buffer[index++] = (byte)((clientIdUtf8.Length >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(clientIdUtf8.Length & 0x00FF); // LSB
-            Array.Copy(clientIdUtf8, 0, buffer, index, clientIdUtf8.Length);
-            index += clientIdUtf8.Length;
-
-            // will topic
-            if (this.willFlag && (willTopicUtf8 != null))
-            {
-                buffer[index++] = (byte)((willTopicUtf8.Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(willTopicUtf8.Length & 0x00FF); // LSB
-                Array.Copy(willTopicUtf8, 0, buffer, index, willTopicUtf8.Length);
-                index += willTopicUtf8.Length;
-            }
-
-            // will message
-            if (this.willFlag && (willMessageUtf8 != null))
-            {
-                buffer[index++] = (byte)((willMessageUtf8.Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(willMessageUtf8.Length & 0x00FF); // LSB
-                Array.Copy(willMessageUtf8, 0, buffer, index, willMessageUtf8.Length);
-                index += willMessageUtf8.Length;
-            }
-
-            // username
-            if (usernameUtf8 != null)
-            {
-                buffer[index++] = (byte)((usernameUtf8.Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(usernameUtf8.Length & 0x00FF); // LSB
-                Array.Copy(usernameUtf8, 0, buffer, index, usernameUtf8.Length);
-                index += usernameUtf8.Length;
-            }
-
-            // password
-            if (passwordUtf8 != null)
-            {
-                buffer[index++] = (byte)((passwordUtf8.Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(passwordUtf8.Length & 0x00FF); // LSB
-                Array.Copy(passwordUtf8, 0, buffer, index, passwordUtf8.Length);
-                index += passwordUtf8.Length;
-            }
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "CONNECT",
-                new object[] { "protocolName", "protocolVersion", "clientId", "willFlag", "willRetain", "willQosLevel", "willTopic", "willMessage", "username", "password", "cleanSession", "keepAlivePeriod" },
-                new object[] { this.protocolName, this.protocolVersion, this.clientId, this.willFlag, this.willRetain, this.willQosLevel, this.willTopic, this.willMessage, this.username, this.password, this.cleanSession, this.keepAlivePeriod });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnect.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 4e9a05c6d21e4b94f930df781ea81507
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnectEventArgs.cs

@@ -1,44 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for CONNECT message received from client
-    /// </summary>
-    public class MqttMsgConnectEventArgs : EventArgs
-    {
-        /// <summary>
-        /// Message received from client
-        /// </summary>
-        public MqttMsgConnect Message { get; private set; }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="msg">CONNECT message received from client</param>
-        public MqttMsgConnectEventArgs(MqttMsgConnect connect)
-        {
-            this.Message = connect;
-        }
-    }
-} 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgConnectEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 94ef26e7c1890814fb2dfa8660ab2330
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgContext.cs

@@ -1,159 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using System.Text;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Context for MQTT message
-    /// </summary>
-    public class MqttMsgContext
-    {
-        /// <summary>
-        /// MQTT message
-        /// </summary>
-        public MqttMsgBase Message { get; set; }
-
-        /// <summary>
-        /// MQTT message state
-        /// </summary>
-        public MqttMsgState State { get; set; }
-
-        /// <summary>
-        /// Flow of the message
-        /// </summary>
-        public MqttMsgFlow Flow { get; set; }
-
-        /// <summary>
-        /// Timestamp in ticks (for retry)
-        /// </summary>
-        public int Timestamp { get; set; }
-
-        /// <summary>
-        /// Attempt (for retry)
-        /// </summary>
-        public int Attempt { get; set; }
-
-        /// <summary>
-        /// Unique key
-        /// </summary>
-        public string Key 
-        {
-            get { return this.Flow + "_" + this.Message.MessageId; }
-        }
-    }
-
-    /// <summary>
-    /// Flow of the message
-    /// </summary>
-    public enum MqttMsgFlow
-    {
-        /// <summary>
-        /// To publish to subscribers
-        /// </summary>
-        ToPublish,
-
-        /// <summary>
-        /// To acknowledge to publisher
-        /// </summary>
-        ToAcknowledge
-    }
-
-    /// <summary>
-    /// MQTT message state
-    /// </summary>
-    public enum MqttMsgState
-    {
-        /// <summary>
-        /// QOS = 0, Message queued
-        /// </summary>
-        QueuedQos0,
-
-        /// <summary>
-        /// QOS = 1, Message queued
-        /// </summary>
-        QueuedQos1,
-
-        /// <summary>
-        /// QOS = 2, Message queued
-        /// </summary>
-        QueuedQos2,
-
-        /// <summary>
-        /// QOS = 1, PUBLISH sent, wait for PUBACK
-        /// </summary>
-        WaitForPuback,
-
-        /// <summary>
-        /// QOS = 2, PUBLISH sent, wait for PUBREC
-        /// </summary>
-        WaitForPubrec,
-
-        /// <summary>
-        /// QOS = 2, PUBREC sent, wait for PUBREL
-        /// </summary>
-        WaitForPubrel,
-
-        /// <summary>
-        /// QOS = 2, PUBREL sent, wait for PUBCOMP
-        /// </summary>
-        WaitForPubcomp,
-
-        /// <summary>
-        /// QOS = 2, start first phase handshake send PUBREC
-        /// </summary>
-        SendPubrec,
-        
-        /// <summary>
-        /// QOS = 2, start second phase handshake send PUBREL
-        /// </summary>
-        SendPubrel,
-
-        /// <summary>
-        /// QOS = 2, end second phase handshake send PUBCOMP
-        /// </summary>
-        SendPubcomp,
-
-        /// <summary>
-        /// QOS = 1, PUBLISH received, send PUBACK
-        /// </summary>
-        SendPuback,
-
-        // [v3.1.1] SUBSCRIBE isn't "officially" QOS = 1
-        /// <summary>
-        /// Send SUBSCRIBE message
-        /// </summary>
-        SendSubscribe,
-
-        // [v3.1.1] UNSUBSCRIBE isn't "officially" QOS = 1
-        /// <summary>
-        /// Send UNSUBSCRIBE message
-        /// </summary>
-        SendUnsubscribe,
-
-        /// <summary>
-        /// (QOS = 1), SUBSCRIBE sent, wait for SUBACK
-        /// </summary>
-        WaitForSuback,
-
-        /// <summary>
-        /// (QOS = 1), UNSUBSCRIBE sent, wait for UNSUBACK
-        /// </summary>
-        WaitForUnsuback
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgContext.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: be87d94d20cc8bf41a67ff659e1f93ab
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgDisconnect.cs

@@ -1,86 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for DISCONNECT message from client to broker
-    /// </summary>
-    public class MqttMsgDisconnect : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgDisconnect()
-        {
-            this.type = MQTT_MSG_DISCONNECT_TYPE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a DISCONNECT message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>DISCONNECT message instance</returns>
-        public static MqttMsgDisconnect Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            MqttMsgDisconnect msg = new MqttMsgDisconnect();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_DISCONNECT_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            // NOTE : remainingLength must be 0
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            byte[] buffer = new byte[2];
-            int index = 0;
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_DISCONNECT_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_DISCONNECT_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_DISCONNECT_TYPE << MSG_TYPE_OFFSET);
-            buffer[index++] = 0x00;
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "DISCONNECT",
-                null,
-                null);
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgDisconnect.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 2999661a610fbe948bec59f459a1884d
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPingReq.cs

@@ -1,86 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PINGREQ message from client to broker
-    /// </summary>
-    public class MqttMsgPingReq : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPingReq()
-        {
-            this.type = MQTT_MSG_PINGREQ_TYPE;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            byte[] buffer = new byte[2];
-            int index = 0;
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PINGREQ_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PINGREQ_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_PINGREQ_TYPE << MSG_TYPE_OFFSET);
-            buffer[index++] = 0x00;
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PINGREQ message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PINGREQ message instance</returns>
-        public static MqttMsgPingReq Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            MqttMsgPingReq msg = new MqttMsgPingReq();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PINGREQ_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // already know remaininglength is zero (MQTT specification),
-            // so it isn't necessary to read other data from socket
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PINGREQ",
-                null,
-                null);
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPingReq.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: e55a8b528223b974da01f17bd0e99264
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPingResp.cs

@@ -1,87 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PINGRESP message from client to broker
-    /// </summary>
-    public class MqttMsgPingResp : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPingResp()
-        {
-            this.type = MQTT_MSG_PINGRESP_TYPE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PINGRESP message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PINGRESP message instance</returns>
-        public static MqttMsgPingResp Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            MqttMsgPingResp msg = new MqttMsgPingResp();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PINGRESP_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // already know remaininglength is zero (MQTT specification),
-            // so it isn't necessary to read other data from socket
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            byte[] buffer = new byte[2];
-            int index = 0;
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PINGRESP_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PINGRESP_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_PINGRESP_TYPE << MSG_TYPE_OFFSET);
-            buffer[index++] = 0x00;
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PINGRESP",
-                null,
-                null);
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPingResp.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 68bebfc7d7e571647b98b34ec131097b
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPuback.cs

@@ -1,125 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PUBACK message from broker to client
-    /// </summary>
-    public class MqttMsgPuback : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPuback()
-        {
-            this.type = MQTT_MSG_PUBACK_TYPE;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PUBACK_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PUBACK_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_PUBACK_TYPE << MSG_TYPE_OFFSET);
-                              
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // get message identifier
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB 
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PUBACK message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PUBACK message instance</returns>
-        public static MqttMsgPuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgPuback msg = new MqttMsgPuback();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PUBACK_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PUBACK",
-                new object[] { "messageId" },
-                new object[] { this.messageId });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPuback.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 6c5ac6994ae049a4f9e8e157abc5bf8d
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubcomp.cs

@@ -1,125 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PUBCOMP message from broker to client
-    /// </summary>
-    public class MqttMsgPubcomp : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPubcomp()
-        {
-            this.type = MQTT_MSG_PUBCOMP_TYPE;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PUBCOMP_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PUBCOMP_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_PUBCOMP_TYPE << MSG_TYPE_OFFSET);
-
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // get message identifier
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB 
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PUBCOMP message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PUBCOMP message instance</returns>
-        public static MqttMsgPubcomp Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgPubcomp msg = new MqttMsgPubcomp();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PUBCOMP_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PUBCOMP",
-                new object[] { "messageId" },
-                new object[] { this.messageId });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubcomp.cs.meta

@@ -1,12 +0,0 @@
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-guid: 624a1f2bbc88e16438386f1d4fb16abe
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublish.cs

@@ -1,277 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using System.Text;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PUBLISH message from client to broker
-    /// </summary>
-    public class MqttMsgPublish : MqttMsgBase
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message topic
-        /// </summary>
-        public string Topic
-        {
-            get { return this.topic; }
-            set { this.topic = value; }
-        }
-
-        /// <summary>
-        /// Message data
-        /// </summary>
-        public byte[] Message
-        {
-            get { return this.message; }
-            set { this.message = value; }
-        }
-
-        #endregion
-
-        // message topic
-        private string topic;
-        // message data
-        private byte[] message;
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPublish()
-        {
-            this.type = MQTT_MSG_PUBLISH_TYPE;
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="topic">Message topic</param>
-        /// <param name="message">Message data</param>
-        public MqttMsgPublish(string topic, byte[] message) :
-            this(topic, message, false, QOS_LEVEL_AT_MOST_ONCE, false)
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="topic">Message topic</param>
-        /// <param name="message">Message data</param>
-        /// <param name="dupFlag">Duplicate flag</param>
-        /// <param name="qosLevel">Quality of Service level</param>
-        /// <param name="retain">Retain flag</param>
-        public MqttMsgPublish(string topic,
-            byte[] message,
-            bool dupFlag,
-            byte qosLevel,
-            bool retain) : base()
-        {
-            this.type = MQTT_MSG_PUBLISH_TYPE;
-
-            this.topic = topic;
-            this.message = message;
-            this.dupFlag = dupFlag;
-            this.qosLevel = qosLevel;
-            this.retain = retain;
-            this.messageId = 0;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // topic can't contain wildcards
-            if ((this.topic.IndexOf('#') != -1) || (this.topic.IndexOf('+') != -1))
-                throw new MqttClientException(MqttClientErrorCode.TopicWildcard);
-
-            // check topic length
-            if ((this.topic.Length < MIN_TOPIC_LENGTH) || (this.topic.Length > MAX_TOPIC_LENGTH))
-                throw new MqttClientException(MqttClientErrorCode.TopicLength);
-
-            // check wrong QoS level (both bits can't be set 1)
-            if (this.qosLevel > QOS_LEVEL_EXACTLY_ONCE)
-                throw new MqttClientException(MqttClientErrorCode.QosNotAllowed);
-
-            byte[] topicUtf8 = Encoding.UTF8.GetBytes(this.topic);
-
-            // topic name
-            varHeaderSize += topicUtf8.Length + 2;
-
-            // message id is valid only with QOS level 1 or QOS level 2
-            if ((this.qosLevel == QOS_LEVEL_AT_LEAST_ONCE) || 
-                (this.qosLevel == QOS_LEVEL_EXACTLY_ONCE))
-            {
-                varHeaderSize += MESSAGE_ID_SIZE;
-            }
-            
-            // check on message with zero length
-            if (this.message != null)
-                // message data
-                payloadSize += this.message.Length;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            buffer[index] = (byte)((MQTT_MSG_PUBLISH_TYPE << MSG_TYPE_OFFSET) |
-                                   (this.qosLevel << QOS_LEVEL_OFFSET));
-            buffer[index] |= this.dupFlag ? (byte)(1 << DUP_FLAG_OFFSET) : (byte)0x00;
-            buffer[index] |= this.retain ? (byte)(1 << RETAIN_FLAG_OFFSET) : (byte)0x00;
-            index++;
-
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // topic name
-            buffer[index++] = (byte)((topicUtf8.Length >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(topicUtf8.Length & 0x00FF); // LSB
-            Array.Copy(topicUtf8, 0, buffer, index, topicUtf8.Length);
-            index += topicUtf8.Length;
-
-            // message id is valid only with QOS level 1 or QOS level 2
-            if ((this.qosLevel == QOS_LEVEL_AT_LEAST_ONCE) ||
-                (this.qosLevel == QOS_LEVEL_EXACTLY_ONCE))
-            {
-                // check message identifier assigned
-                if (this.messageId == 0)
-                    throw new MqttClientException(MqttClientErrorCode.WrongMessageId);
-                buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB
-            }
-
-            // check on message with zero length
-            if (this.message != null)
-            {
-                // message data
-                Array.Copy(this.message, 0, buffer, index, this.message.Length);
-                index += this.message.Length;
-            }
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PUBLISH message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PUBLISH message instance</returns>
-        public static MqttMsgPublish Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            byte[] topicUtf8;
-            int topicUtf8Length;
-            MqttMsgPublish msg = new MqttMsgPublish();
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            int received = channel.Receive(buffer);
-
-            // topic name
-            topicUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-            topicUtf8Length |= buffer[index++];
-            topicUtf8 = new byte[topicUtf8Length];
-            Array.Copy(buffer, index, topicUtf8, 0, topicUtf8Length);
-            index += topicUtf8Length;
-            msg.topic = new String(Encoding.UTF8.GetChars(topicUtf8));
-
-            // read QoS level from fixed header
-            msg.qosLevel = (byte)((fixedHeaderFirstByte & QOS_LEVEL_MASK) >> QOS_LEVEL_OFFSET);
-            // check wrong QoS level (both bits can't be set 1)
-            if (msg.qosLevel > QOS_LEVEL_EXACTLY_ONCE)
-                throw new MqttClientException(MqttClientErrorCode.QosNotAllowed);
-            // read DUP flag from fixed header
-            msg.dupFlag = (((fixedHeaderFirstByte & DUP_FLAG_MASK) >> DUP_FLAG_OFFSET) == 0x01);
-            // read retain flag from fixed header
-            msg.retain = (((fixedHeaderFirstByte & RETAIN_FLAG_MASK) >> RETAIN_FLAG_OFFSET) == 0x01);
-            
-            // message id is valid only with QOS level 1 or QOS level 2
-            if ((msg.qosLevel == QOS_LEVEL_AT_LEAST_ONCE) ||
-                (msg.qosLevel == QOS_LEVEL_EXACTLY_ONCE))
-            {
-                // message id
-                msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-                msg.messageId |= (buffer[index++]);
-            }
-
-            // get payload with message data
-            int messageSize = remainingLength - index;
-            int remaining = messageSize;
-            int messageOffset = 0;
-            msg.message = new byte[messageSize];
-
-            // BUG FIX 26/07/2013 : receiving large payload
-
-            // copy first part of payload data received
-            Array.Copy(buffer, index, msg.message, messageOffset, received - index);
-            remaining -= (received - index);
-            messageOffset += (received - index);
-
-            // if payload isn't finished
-            while (remaining > 0)
-            {
-                // receive other payload data
-                received = channel.Receive(buffer);
-                Array.Copy(buffer, 0, msg.message, messageOffset, received);
-                remaining -= received;
-                messageOffset += received;
-            }
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PUBLISH",
-                new object[] { "messageId", "topic", "message" },
-                new object[] { this.messageId, this.topic, this.message });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublish.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: ea9803434a62fb040b88b404229953d1
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublishEventArgs.cs

@@ -1,111 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for PUBLISH message received from broker
-    /// </summary>
-    public class MqttMsgPublishEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message topic
-        /// </summary>
-        public string Topic
-        {
-            get { return this.topic; }
-            internal set { this.topic = value; }
-        }
-
-        /// <summary>
-        /// Message data
-        /// </summary>
-        public byte[] Message
-        {
-            get { return this.message; }
-            internal set { this.message = value; }
-        }
-
-        /// <summary>
-        /// Duplicate message flag
-        /// </summary>
-        public bool DupFlag
-        {
-            get { return this.dupFlag; }
-            set { this.dupFlag = value; }
-        }
-
-        /// <summary>
-        /// Quality of Service level
-        /// </summary>
-        public byte QosLevel
-        {
-            get { return this.qosLevel; }
-            internal set { this.qosLevel = value; }
-        }
-
-        /// <summary>
-        /// Retain message flag
-        /// </summary>
-        public bool Retain
-        {
-            get { return this.retain; }
-            internal set { this.retain = value; }
-        }
-
-        #endregion
-
-        // message topic
-        private string topic;
-        // message data
-        private byte[] message;
-        // duplicate delivery
-        private bool dupFlag;
-        // quality of service level
-        private byte qosLevel;
-        // retain flag
-        private bool retain;       
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="topic">Message topic</param>
-        /// <param name="message">Message data</param>
-        /// <param name="dupFlag">Duplicate delivery flag</param>
-        /// <param name="qosLevel">Quality of Service level</param>
-        /// <param name="retain">Retain flag</param>
-        public MqttMsgPublishEventArgs(string topic,
-            byte[] message,
-            bool dupFlag,
-            byte qosLevel,
-            bool retain)
-        {
-            this.topic = topic;
-            this.message = message;
-            this.dupFlag = dupFlag;
-            this.qosLevel = qosLevel;
-            this.retain = retain;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublishEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 165cf56982830e04ea796fdbce2ad3bc
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublishedEventArgs.cs

@@ -1,78 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for published message
-    /// </summary>
-    public class MqttMsgPublishedEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message identifier
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            internal set { this.messageId = value; }
-        }
-
-        /// <summary>
-        /// Message published (or failed due to retries)
-        /// </summary>
-        public bool IsPublished
-        {
-            get { return this.isPublished; }
-            internal set { this.isPublished = value; }
-        }
-
-        #endregion
-
-        // message identifier
-        ushort messageId;
-
-        // published flag
-        bool isPublished;
-
-        /// <summary>
-        /// Constructor (published message)
-        /// </summary>
-        /// <param name="messageId">Message identifier published</param>
-        public MqttMsgPublishedEventArgs(ushort messageId) 
-            : this(messageId, true) 
-        { 
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="messageId">Message identifier</param>
-        /// <param name="isPublished">Publish flag</param>
-        public MqttMsgPublishedEventArgs(ushort messageId, bool isPublished)
-        {
-            this.messageId = messageId;
-            this.isPublished = isPublished;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPublishedEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 94af55e978716c643a3e3f504a7de642
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubrec.cs

@@ -1,125 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PUBREC message from broker to client
-    /// </summary>
-    public class MqttMsgPubrec : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPubrec()
-        {
-            this.type = MQTT_MSG_PUBREC_TYPE;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PUBREC_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PUBREC_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (MQTT_MSG_PUBREC_TYPE << MSG_TYPE_OFFSET);
-
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // get message identifier
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB 
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PUBREC message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PUBREC message instance</returns>
-        public static MqttMsgPubrec Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgPubrec msg = new MqttMsgPubrec();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PUBREC_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PUBREC",
-                new object[] { "messageId" },
-                new object[] { this.messageId });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubrec.cs.meta

@@ -1,12 +0,0 @@
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-guid: bd39257887ec8fb478a457309d6a8592
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
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-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubrel.cs

@@ -1,142 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for PUBREL message from client top broker
-    /// </summary>
-    public class MqttMsgPubrel : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgPubrel()
-        {
-            this.type = MQTT_MSG_PUBREL_TYPE;
-            // PUBREL message use QoS Level 1 (not "officially" in 3.1.1)
-            this.qosLevel = QOS_LEVEL_AT_LEAST_ONCE;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_PUBREL_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_PUBREL_FLAG_BITS; // [v.3.1.1]
-            else
-            {
-                buffer[index] = (byte)((MQTT_MSG_PUBREL_TYPE << MSG_TYPE_OFFSET) |
-                                   (this.qosLevel << QOS_LEVEL_OFFSET));
-                buffer[index] |= this.dupFlag ? (byte)(1 << DUP_FLAG_OFFSET) : (byte)0x00;
-                index++;
-            }
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // get next message identifier
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB 
-
-            return buffer;
-        }
-
-        /// <summary>
-        /// Parse bytes for a PUBREL message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>PUBREL message instance</returns>
-        public static MqttMsgPubrel Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgPubrel msg = new MqttMsgPubrel();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_PUBREL_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1)
-            {
-                // only 3.1.0
-
-                // read QoS level from fixed header (would be QoS Level 1)
-                msg.qosLevel = (byte)((fixedHeaderFirstByte & QOS_LEVEL_MASK) >> QOS_LEVEL_OFFSET);
-                // read DUP flag from fixed header
-                msg.dupFlag = (((fixedHeaderFirstByte & DUP_FLAG_MASK) >> DUP_FLAG_OFFSET) == 0x01);
-            }
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            return msg;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "PUBREL",
-                new object[] { "messageId" },
-                new object[] { this.messageId });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgPubrel.cs.meta

@@ -1,12 +0,0 @@
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-guid: caa49c87a824eb74a9e467e7f4b0f43a
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSuback.cs

@@ -1,162 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for SUBACK message from broker to client
-    /// </summary>
-    public class MqttMsgSuback : MqttMsgBase
-    {
-        #region Properties...
-
-        /// <summary>
-        /// List of granted QOS Levels
-        /// </summary>
-        public byte[] GrantedQoSLevels
-        {
-            get { return this.grantedQosLevels; }
-            set { this.grantedQosLevels = value; }
-        }
-
-        #endregion
-
-        // granted QOS levels
-        byte[] grantedQosLevels;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgSuback()
-        {
-            this.type = MQTT_MSG_SUBACK_TYPE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a SUBACK message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>SUBACK message instance</returns>
-        public static MqttMsgSuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgSuback msg = new MqttMsgSuback();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_SUBACK_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            // payload contains QoS levels granted
-            msg.grantedQosLevels = new byte[remainingLength - MESSAGE_ID_SIZE];
-            int qosIdx = 0;
-            do
-            {
-                msg.grantedQosLevels[qosIdx++] = buffer[index++];
-            } while (index < remainingLength);
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            int grantedQosIdx = 0;
-            for (grantedQosIdx = 0; grantedQosIdx < this.grantedQosLevels.Length; grantedQosIdx++)
-            {
-                payloadSize++;
-            }
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_SUBACK_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_SUBACK_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (byte)(MQTT_MSG_SUBACK_TYPE << MSG_TYPE_OFFSET);
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // message id
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB
-
-            // payload contains QoS levels granted
-            for (grantedQosIdx = 0; grantedQosIdx < this.grantedQosLevels.Length; grantedQosIdx++)
-            {
-                buffer[index++] = this.grantedQosLevels[grantedQosIdx];
-            }
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "SUBACK",
-                new object[] { "messageId", "grantedQosLevels" },
-                new object[] { this.messageId, this.grantedQosLevels });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSuback.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: d65c65e70243bdb498dd4d35e1781d33
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribe.cs

@@ -1,272 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-// if NOT .Net Micro Framework
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System.Collections.Generic;
-#endif
-using System.Collections;
-using System.Text;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for SUBSCRIBE message from client to broker
-    /// </summary>
-    public class MqttMsgSubscribe : MqttMsgBase
-    {
-        #region Properties...
-
-        /// <summary>
-        /// List of topics to subscribe
-        /// </summary>
-        public string[] Topics
-        {
-            get { return this.topics; }
-            set { this.topics = value; }
-        }
-
-        /// <summary>
-        /// List of QOS Levels related to topics
-        /// </summary>
-        public byte[] QoSLevels
-        {
-            get { return this.qosLevels; }
-            set { this.qosLevels = value; }
-        }
-
-        #endregion
-
-        // topics to subscribe
-        string[] topics;
-        // QOS levels related to topics
-        byte[] qosLevels;
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgSubscribe()
-        {
-            this.type = MQTT_MSG_SUBSCRIBE_TYPE;
-        }
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="topics">List of topics to subscribe</param>
-        /// <param name="qosLevels">List of QOS Levels related to topics</param>
-        public MqttMsgSubscribe(string[] topics, byte[] qosLevels)
-        {
-            this.type = MQTT_MSG_SUBSCRIBE_TYPE;
-
-            this.topics = topics;
-            this.qosLevels = qosLevels;
-
-            // SUBSCRIBE message uses QoS Level 1 (not "officially" in 3.1.1)
-            this.qosLevel = QOS_LEVEL_AT_LEAST_ONCE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a SUBSCRIBE message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>SUBSCRIBE message instance</returns>
-        public static MqttMsgSubscribe Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            byte[] topicUtf8;
-            int topicUtf8Length;
-            MqttMsgSubscribe msg = new MqttMsgSubscribe();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_SUBSCRIBE_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            int received = channel.Receive(buffer);
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1)
-            {
-                // only 3.1.0
-
-                // read QoS level from fixed header
-                msg.qosLevel = (byte)((fixedHeaderFirstByte & QOS_LEVEL_MASK) >> QOS_LEVEL_OFFSET);
-                // read DUP flag from fixed header
-                msg.dupFlag = (((fixedHeaderFirstByte & DUP_FLAG_MASK) >> DUP_FLAG_OFFSET) == 0x01);
-                // retain flag not used
-                msg.retain = false;
-            }
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            // payload contains topics and QoS levels
-            // NOTE : before, I don't know how many topics will be in the payload (so use List)
-
-// if .Net Micro Framework
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-            IList tmpTopics = new ArrayList();
-            IList tmpQosLevels = new ArrayList();
-// else other frameworks (.Net, .Net Compact, Mono, Windows Phone) 
-#else
-            IList<String> tmpTopics = new List<String>();
-            IList<byte> tmpQosLevels = new List<byte>();
-#endif
-            do
-            {
-                // topic name
-                topicUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                topicUtf8Length |= buffer[index++];
-                topicUtf8 = new byte[topicUtf8Length];
-                Array.Copy(buffer, index, topicUtf8, 0, topicUtf8Length);
-                index += topicUtf8Length;
-                tmpTopics.Add(new String(Encoding.UTF8.GetChars(topicUtf8)));
-
-                // QoS level
-                tmpQosLevels.Add(buffer[index++]);
-
-            } while (index < remainingLength);
-
-            // copy from list to array
-            msg.topics = new string[tmpTopics.Count];
-            msg.qosLevels = new byte[tmpQosLevels.Count];
-            for (int i = 0; i < tmpTopics.Count; i++)
-            {
-                msg.topics[i] = (string)tmpTopics[i];
-                msg.qosLevels[i] = (byte)tmpQosLevels[i];
-            }
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // topics list empty
-            if ((this.topics == null) || (this.topics.Length == 0))
-                throw new MqttClientException(MqttClientErrorCode.TopicsEmpty);
-
-            // qos levels list empty
-            if ((this.qosLevels == null) || (this.qosLevels.Length == 0))
-                throw new MqttClientException(MqttClientErrorCode.QosLevelsEmpty);
-
-            // topics and qos levels lists length don't match
-            if (this.topics.Length != this.qosLevels.Length)
-                throw new MqttClientException(MqttClientErrorCode.TopicsQosLevelsNotMatch);
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            int topicIdx = 0;
-            byte[][] topicsUtf8 = new byte[this.topics.Length][];
-
-            for (topicIdx = 0; topicIdx < this.topics.Length; topicIdx++)
-            {
-                // check topic length
-                if ((this.topics[topicIdx].Length < MIN_TOPIC_LENGTH) || (this.topics[topicIdx].Length > MAX_TOPIC_LENGTH))
-                    throw new MqttClientException(MqttClientErrorCode.TopicLength);
-
-                topicsUtf8[topicIdx] = Encoding.UTF8.GetBytes(this.topics[topicIdx]);
-                payloadSize += 2; // topic size (MSB, LSB)
-                payloadSize += topicsUtf8[topicIdx].Length;
-                payloadSize++; // byte for QoS
-            }
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_SUBSCRIBE_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_SUBSCRIBE_FLAG_BITS; // [v.3.1.1]
-            else
-            {
-                buffer[index] = (byte)((MQTT_MSG_SUBSCRIBE_TYPE << MSG_TYPE_OFFSET) |
-                                   (this.qosLevel << QOS_LEVEL_OFFSET));
-                buffer[index] |= this.dupFlag ? (byte)(1 << DUP_FLAG_OFFSET) : (byte)0x00;
-                index++;
-            }
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // check message identifier assigned (SUBSCRIBE uses QoS Level 1, so message id is mandatory)
-            if (this.messageId == 0)
-                throw new MqttClientException(MqttClientErrorCode.WrongMessageId);
-            buffer[index++] = (byte)((messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(messageId & 0x00FF); // LSB 
-
-            topicIdx = 0;
-            for (topicIdx = 0; topicIdx < this.topics.Length; topicIdx++)
-            {
-                // topic name
-                buffer[index++] = (byte)((topicsUtf8[topicIdx].Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(topicsUtf8[topicIdx].Length & 0x00FF); // LSB
-                Array.Copy(topicsUtf8[topicIdx], 0, buffer, index, topicsUtf8[topicIdx].Length);
-                index += topicsUtf8[topicIdx].Length;
-
-                // requested QoS
-                buffer[index++] = this.qosLevels[topicIdx];
-            }
-            
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "SUBSCRIBE",
-                new object[] { "messageId", "topics", "qosLevels" },
-                new object[] { this.messageId, this.topics, this.qosLevels });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribe.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 05fbe0ee63fed49438d0084469af8cca
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribeEventArgs.cs

@@ -1,81 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for subscribe request on topics
-    /// </summary>
-    public class MqttMsgSubscribeEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message identifier
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            internal set { this.messageId = value; }
-        }
-
-        /// <summary>
-        /// Topics requested to subscribe
-        /// </summary>
-        public string[] Topics
-        {
-            get { return this.topics; }
-            internal set { this.topics = value; }
-        }
-
-        /// <summary>
-        /// List of QOS Levels requested
-        /// </summary>
-        public byte[] QoSLevels
-        {
-            get { return this.qosLevels; }
-            internal set { this.qosLevels = value; }
-        }
-
-        #endregion
-
-        // message identifier
-        ushort messageId;
-        // topics requested to subscribe
-        string[] topics;
-        // QoS levels requested
-        byte[] qosLevels;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="messageId">Message identifier for subscribe topics request</param>
-        /// <param name="topics">Topics requested to subscribe</param>
-        /// <param name="qosLevels">List of QOS Levels requested</param>
-        public MqttMsgSubscribeEventArgs(ushort messageId, string[] topics, byte[] qosLevels)
-        {
-            this.messageId = messageId;
-            this.topics = topics;
-            this.qosLevels = qosLevels;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribeEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: db71b083234278e45a35bc2c84aab0e5
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribedEventArgs.cs

@@ -1,68 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for subscribed topics
-    /// </summary>
-    public class MqttMsgSubscribedEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message identifier
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            internal set { this.messageId = value; }
-        }
-
-        /// <summary>
-        /// List of granted QOS Levels
-        /// </summary>
-        public byte[] GrantedQoSLevels
-        {
-            get { return this.grantedQosLevels; }
-            internal set { this.grantedQosLevels = value; }
-        }
-
-        #endregion
-
-        // message identifier
-        ushort messageId;
-        // granted QOS levels
-        byte[] grantedQosLevels;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="messageId">Message identifier for subscribed topics</param>
-        /// <param name="grantedQosLevels">List of granted QOS Levels</param>
-        public MqttMsgSubscribedEventArgs(ushort messageId, byte[] grantedQosLevels)
-        {
-            this.messageId = messageId;
-            this.grantedQosLevels = grantedQosLevels;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgSubscribedEventArgs.cs.meta

@@ -1,12 +0,0 @@
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-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsuback.cs

@@ -1,126 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for UNSUBACK message from broker to client
-    /// </summary>
-    public class MqttMsgUnsuback : MqttMsgBase
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgUnsuback()
-        {
-            this.type = MQTT_MSG_UNSUBACK_TYPE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a UNSUBACK message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>UNSUBACK message instance</returns>
-        public static MqttMsgUnsuback Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            MqttMsgUnsuback msg = new MqttMsgUnsuback();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_UNSUBACK_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            channel.Receive(buffer);
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_UNSUBACK_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_UNSUBACK_FLAG_BITS; // [v.3.1.1]
-            else
-                buffer[index++] = (byte)(MQTT_MSG_UNSUBACK_TYPE << MSG_TYPE_OFFSET);
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // message id
-            buffer[index++] = (byte)((this.messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(this.messageId & 0x00FF); // LSB
-
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "UNSUBACK",
-                new object[] { "messageId" },
-                new object[] { this.messageId });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsuback.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 3b85af8ec848453408d9ed18c74485cd
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribe.cs

@@ -1,239 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System;
-// if NOT .Net Micro Framework
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System.Collections.Generic;
-#endif
-using System.Collections;
-using System.Text;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Class for UNSUBSCRIBE message from client to broker
-    /// </summary>
-    public class MqttMsgUnsubscribe : MqttMsgBase
-    {
-        #region Properties...
-
-        /// <summary>
-        /// List of topics to unsubscribe
-        /// </summary>
-        public string[] Topics
-        {
-            get { return this.topics; }
-            set { this.topics = value; }
-        }
-
-        #endregion
-
-        // topics to unsubscribe
-        string[] topics;
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttMsgUnsubscribe()
-        {
-            this.type = MQTT_MSG_UNSUBSCRIBE_TYPE;
-        }
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="topics">List of topics to unsubscribe</param>
-        public MqttMsgUnsubscribe(string[] topics)
-        {
-            this.type = MQTT_MSG_UNSUBSCRIBE_TYPE;
-
-            this.topics = topics;
-
-            // UNSUBSCRIBE message uses QoS Level 1 (not "officially" in 3.1.1)
-            this.qosLevel = QOS_LEVEL_AT_LEAST_ONCE;
-        }
-
-        /// <summary>
-        /// Parse bytes for a UNSUBSCRIBE message
-        /// </summary>
-        /// <param name="fixedHeaderFirstByte">First fixed header byte</param>
-        /// <param name="protocolVersion">Protocol Version</param>
-        /// <param name="channel">Channel connected to the broker</param>
-        /// <returns>UNSUBSCRIBE message instance</returns>
-        public static MqttMsgUnsubscribe Parse(byte fixedHeaderFirstByte, byte protocolVersion, IMqttNetworkChannel channel)
-        {
-            byte[] buffer;
-            int index = 0;
-            byte[] topicUtf8;
-            int topicUtf8Length;
-            MqttMsgUnsubscribe msg = new MqttMsgUnsubscribe();
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-            {
-                // [v3.1.1] check flag bits
-                if ((fixedHeaderFirstByte & MSG_FLAG_BITS_MASK) != MQTT_MSG_UNSUBSCRIBE_FLAG_BITS)
-                    throw new MqttClientException(MqttClientErrorCode.InvalidFlagBits);
-            }
-
-            // get remaining length and allocate buffer
-            int remainingLength = MqttMsgBase.decodeRemainingLength(channel);
-            buffer = new byte[remainingLength];
-
-            // read bytes from socket...
-            int received = channel.Receive(buffer);
-
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1)
-            {
-                // only 3.1.0
-
-                // read QoS level from fixed header
-                msg.qosLevel = (byte)((fixedHeaderFirstByte & QOS_LEVEL_MASK) >> QOS_LEVEL_OFFSET);
-                // read DUP flag from fixed header
-                msg.dupFlag = (((fixedHeaderFirstByte & DUP_FLAG_MASK) >> DUP_FLAG_OFFSET) == 0x01);
-                // retain flag not used
-                msg.retain = false;
-            }
-
-            // message id
-            msg.messageId = (ushort)((buffer[index++] << 8) & 0xFF00);
-            msg.messageId |= (buffer[index++]);
-
-            // payload contains topics
-            // NOTE : before, I don't know how many topics will be in the payload (so use List)
-
-// if .Net Micro Framework
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-            IList tmpTopics = new ArrayList();
-// else other frameworks (.Net, .Net Compact, Mono, Windows Phone) 
-#else
-            IList<String> tmpTopics = new List<String>();
-#endif
-            do
-            {
-                // topic name
-                topicUtf8Length = ((buffer[index++] << 8) & 0xFF00);
-                topicUtf8Length |= buffer[index++];
-                topicUtf8 = new byte[topicUtf8Length];
-                Array.Copy(buffer, index, topicUtf8, 0, topicUtf8Length);
-                index += topicUtf8Length;
-                tmpTopics.Add(new String(Encoding.UTF8.GetChars(topicUtf8)));
-            } while (index < remainingLength);
-
-            // copy from list to array
-            msg.topics = new string[tmpTopics.Count];
-            for (int i = 0; i < tmpTopics.Count; i++)
-            {
-                msg.topics[i] = (string)tmpTopics[i];
-            }
-
-            return msg;
-        }
-
-        public override byte[] GetBytes(byte protocolVersion)
-        {
-            int fixedHeaderSize = 0;
-            int varHeaderSize = 0;
-            int payloadSize = 0;
-            int remainingLength = 0;
-            byte[] buffer;
-            int index = 0;
-
-            // topics list empty
-            if ((this.topics == null) || (this.topics.Length == 0))
-                throw new MqttClientException(MqttClientErrorCode.TopicsEmpty);
-
-            // message identifier
-            varHeaderSize += MESSAGE_ID_SIZE;
-
-            int topicIdx = 0;
-            byte[][] topicsUtf8 = new byte[this.topics.Length][];
-
-            for (topicIdx = 0; topicIdx < this.topics.Length; topicIdx++)
-            {
-                // check topic length
-                if ((this.topics[topicIdx].Length < MIN_TOPIC_LENGTH) || (this.topics[topicIdx].Length > MAX_TOPIC_LENGTH))
-                    throw new MqttClientException(MqttClientErrorCode.TopicLength);
-
-                topicsUtf8[topicIdx] = Encoding.UTF8.GetBytes(this.topics[topicIdx]);
-                payloadSize += 2; // topic size (MSB, LSB)
-                payloadSize += topicsUtf8[topicIdx].Length;
-            }
-
-            remainingLength += (varHeaderSize + payloadSize);
-
-            // first byte of fixed header
-            fixedHeaderSize = 1;
-
-            int temp = remainingLength;
-            // increase fixed header size based on remaining length
-            // (each remaining length byte can encode until 128)
-            do
-            {
-                fixedHeaderSize++;
-                temp = temp / 128;
-            } while (temp > 0);
-
-            // allocate buffer for message
-            buffer = new byte[fixedHeaderSize + varHeaderSize + payloadSize];
-
-            // first fixed header byte
-            if (protocolVersion == MqttMsgConnect.PROTOCOL_VERSION_V3_1_1)
-                buffer[index++] = (MQTT_MSG_UNSUBSCRIBE_TYPE << MSG_TYPE_OFFSET) | MQTT_MSG_UNSUBSCRIBE_FLAG_BITS; // [v.3.1.1]
-            else
-            {
-                buffer[index] = (byte)((MQTT_MSG_UNSUBSCRIBE_TYPE << MSG_TYPE_OFFSET) |
-                                   (this.qosLevel << QOS_LEVEL_OFFSET));
-                buffer[index] |= this.dupFlag ? (byte)(1 << DUP_FLAG_OFFSET) : (byte)0x00;
-                index++;
-            }
-            
-            // encode remaining length
-            index = this.encodeRemainingLength(remainingLength, buffer, index);
-
-            // check message identifier assigned
-            if (this.messageId == 0)
-                throw new MqttClientException(MqttClientErrorCode.WrongMessageId);
-            buffer[index++] = (byte)((messageId >> 8) & 0x00FF); // MSB
-            buffer[index++] = (byte)(messageId & 0x00FF); // LSB 
-
-            topicIdx = 0;
-            for (topicIdx = 0; topicIdx < this.topics.Length; topicIdx++)
-            {
-                // topic name
-                buffer[index++] = (byte)((topicsUtf8[topicIdx].Length >> 8) & 0x00FF); // MSB
-                buffer[index++] = (byte)(topicsUtf8[topicIdx].Length & 0x00FF); // LSB
-                Array.Copy(topicsUtf8[topicIdx], 0, buffer, index, topicsUtf8[topicIdx].Length);
-                index += topicsUtf8[topicIdx].Length;
-            }
-            
-            return buffer;
-        }
-
-        public override string ToString()
-        {
-#if TRACE
-            return this.GetTraceString(
-                "UNSUBSCRIBE",
-                new object[] { "messageId", "topics" },
-                new object[] { this.messageId, this.topics });
-#else
-            return base.ToString();
-#endif
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribe.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: cb05e7880b2b555499135e0aa81b1f74
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribeEventArgs.cs

@@ -1,68 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for unsubscribe request on topics
-    /// </summary>
-    public class MqttMsgUnsubscribeEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message identifier
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            internal set { this.messageId = value; }
-        }
-
-        /// <summary>
-        /// Topics requested to subscribe
-        /// </summary>
-        public string[] Topics
-        {
-            get { return this.topics; }
-            internal set { this.topics = value; }
-        }
-
-        #endregion
-
-        // message identifier
-        ushort messageId;
-        // topics requested to unsubscribe
-        string[] topics;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="messageId">Message identifier for subscribed topics</param>
-        /// <param name="topics">Topics requested to subscribe</param>
-        public MqttMsgUnsubscribeEventArgs(ushort messageId, string[] topics)
-        {
-            this.messageId = messageId;
-            this.topics = topics;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribeEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 19797a25d0e31e1409bab585f8509dc3
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribedEventArgs.cs

@@ -1,55 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-using System;
-#else
-using Microsoft.SPOT;
-#endif
-
-namespace uPLibrary.Networking.M2Mqtt.Messages
-{
-    /// <summary>
-    /// Event Args class for unsubscribed topic
-    /// </summary>
-    public class MqttMsgUnsubscribedEventArgs : EventArgs
-    {
-        #region Properties...
-
-        /// <summary>
-        /// Message identifier
-        /// </summary>
-        public ushort MessageId
-        {
-            get { return this.messageId; }
-            internal set { this.messageId = value; }
-        }
-
-        #endregion
-
-        // message identifier
-        ushort messageId;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="messageId">Message identifier for unsubscribed topic</param>
-        public MqttMsgUnsubscribedEventArgs(ushort messageId)
-        {
-            this.messageId = messageId;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Messages/MqttMsgUnsubscribedEventArgs.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: 9b9cb9a812d3e854696cad7d490501bf
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/MqttClient.cs

@@ -1,2637 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-
-   ----------------------------------------------------------------------------
-
-   Giovanni Paolo Vigano' - preprocessor directives for platform dependent compilation in Unity
-*/
-
-using System;
-using System.Net;
-#if !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-using System.Net.Sockets;
-using System.Security.Cryptography.X509Certificates;
-#endif
-using System.Threading;
-using uPLibrary.Networking.M2Mqtt.Exceptions;
-using uPLibrary.Networking.M2Mqtt.Messages;
-using uPLibrary.Networking.M2Mqtt.Session;
-using uPLibrary.Networking.M2Mqtt.Utility;
-using uPLibrary.Networking.M2Mqtt.Internal;
-// if .Net Micro Framework
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-using Microsoft.SPOT;
-#if SSL
-using Microsoft.SPOT.Net.Security;
-#endif
-// else other frameworks (.Net, .Net Compact, Mono, Windows Phone) 
-#else
-using System.Collections.Generic;
-#if (SSL && !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP)))
-using System.Security.Authentication;
-using System.Net.Security;
-#endif
-#endif
-
-#if (WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR && UNITY_WSA_10_0 && !ENABLE_IL2CPP))
-using Windows.Networking.Sockets;
-#endif
-
-using System.Collections;
-
-// alias needed due to Microsoft.SPOT.Trace in .Net Micro Framework
-// (it's ambiguos with uPLibrary.Networking.M2Mqtt.Utility.Trace)
-using MqttUtility = uPLibrary.Networking.M2Mqtt.Utility;
-using System.IO;
-using System.Net.Security;
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// MQTT Client
-    /// </summary>
-    public class MqttClient
-    {
-#if BROKER
-        #region Constants ...
-
-        // thread names
-        private const string RECEIVE_THREAD_NAME = "ReceiveThread";
-        private const string RECEIVE_EVENT_THREAD_NAME = "DispatchEventThread";
-        private const string PROCESS_INFLIGHT_THREAD_NAME = "ProcessInflightThread";
-        private const string KEEP_ALIVE_THREAD = "KeepAliveThread";
-
-        #endregion
-#endif
-
-        /// <summary>
-        /// Delagate that defines event handler for PUBLISH message received
-        /// </summary>
-        public delegate void MqttMsgPublishEventHandler(object sender, MqttMsgPublishEventArgs e);
-
-        /// <summary>
-        /// Delegate that defines event handler for published message
-        /// </summary>
-        public delegate void MqttMsgPublishedEventHandler(object sender, MqttMsgPublishedEventArgs e);
-
-        /// <summary>
-        /// Delagate that defines event handler for subscribed topic
-        /// </summary>
-        public delegate void MqttMsgSubscribedEventHandler(object sender, MqttMsgSubscribedEventArgs e);
-
-        /// <summary>
-        /// Delagate that defines event handler for unsubscribed topic
-        /// </summary>
-        public delegate void MqttMsgUnsubscribedEventHandler(object sender, MqttMsgUnsubscribedEventArgs e);
-
-#if BROKER
-        /// <summary>
-        /// Delagate that defines event handler for SUBSCRIBE message received
-        /// </summary>
-        public delegate void MqttMsgSubscribeEventHandler(object sender, MqttMsgSubscribeEventArgs e);
-
-        /// <summary>
-        /// Delagate that defines event handler for UNSUBSCRIBE message received
-        /// </summary>
-        public delegate void MqttMsgUnsubscribeEventHandler(object sender, MqttMsgUnsubscribeEventArgs e);
-
-        /// <summary>
-        /// Delagate that defines event handler for CONNECT message received
-        /// </summary>
-        public delegate void MqttMsgConnectEventHandler(object sender, MqttMsgConnectEventArgs e);
-
-        /// <summary>
-        /// Delegate that defines event handler for client disconnection (DISCONNECT message or not)
-        /// </summary>
-        public delegate void MqttMsgDisconnectEventHandler(object sender, EventArgs e);
-#endif
-
-        /// <summary>
-        /// Delegate that defines event handler for cliet/peer disconnection
-        /// </summary>
-        public delegate void ConnectionClosedEventHandler(object sender, EventArgs e);
-
-        // broker hostname (or ip address) and port
-        private string brokerHostName;
-        private int brokerPort;
-
-        // running status of threads
-        private bool isRunning;
-        // event for raising received message event
-        private AutoResetEvent receiveEventWaitHandle;
-
-        // event for starting process inflight queue asynchronously
-        private AutoResetEvent inflightWaitHandle;
-
-        // event for signaling synchronous receive
-        AutoResetEvent syncEndReceiving;
-        // message received
-        MqttMsgBase msgReceived;
-
-        // exeption thrown during receiving
-        Exception exReceiving;
-
-        // keep alive period (in ms)
-        private int keepAlivePeriod;
-        // events for signaling on keep alive thread
-        private AutoResetEvent keepAliveEvent;
-        private AutoResetEvent keepAliveEventEnd;
-        // last communication time in ticks
-        private int lastCommTime;
-
-        // event for PUBLISH message received
-        public event MqttMsgPublishEventHandler MqttMsgPublishReceived;
-        // event for published message
-        public event MqttMsgPublishedEventHandler MqttMsgPublished;
-        // event for subscribed topic
-        public event MqttMsgSubscribedEventHandler MqttMsgSubscribed;
-        // event for unsubscribed topic
-        public event MqttMsgUnsubscribedEventHandler MqttMsgUnsubscribed;
-#if BROKER
-        // event for SUBSCRIBE message received
-        public event MqttMsgSubscribeEventHandler MqttMsgSubscribeReceived;
-        // event for USUBSCRIBE message received
-        public event MqttMsgUnsubscribeEventHandler MqttMsgUnsubscribeReceived;
-        // event for CONNECT message received
-        public event MqttMsgConnectEventHandler MqttMsgConnected;
-        // event for DISCONNECT message received
-        public event MqttMsgDisconnectEventHandler MqttMsgDisconnected;
-#endif
-
-        // event for peer/client disconnection
-        public event ConnectionClosedEventHandler ConnectionClosed;
-        
-        // channel to communicate over the network
-        private IMqttNetworkChannel channel;
-
-        // inflight messages queue
-        private Queue inflightQueue;
-        // internal queue for received messages about inflight messages
-        private Queue internalQueue;
-        // internal queue for dispatching events
-        private Queue eventQueue;
-        // session
-        private MqttClientSession session;
-
-        // reference to avoid access to singleton via property
-        private MqttSettings settings;
-
-        // current message identifier generated
-        private ushort messageIdCounter = 0;
-
-        // connection is closing due to peer
-        private bool isConnectionClosing;
-
-        /// <summary>
-        /// Connection status between client and broker
-        /// </summary>
-        public bool IsConnected { get; private set; }
-
-        /// <summary>
-        /// Client identifier
-        /// </summary>
-        public string ClientId { get; private set; }
-
-        /// <summary>
-        /// Clean session flag
-        /// </summary>
-        public bool CleanSession { get; private set; }
-
-        /// <summary>
-        /// Will flag
-        /// </summary>
-        public bool WillFlag { get; private set; }
-
-        /// <summary>
-        /// Will QOS level
-        /// </summary>
-        public byte WillQosLevel { get; private set; }
-
-        /// <summary>
-        /// Will topic
-        /// </summary>
-        public string WillTopic { get; private set; }
-
-        /// <summary>
-        /// Will message
-        /// </summary>
-        public string WillMessage { get; private set; }
-
-        /// <summary>
-        /// MQTT protocol version
-        /// </summary>
-        public MqttProtocolVersion ProtocolVersion { get; set; }
-
-#if BROKER
-        /// <summary>
-        /// MQTT Client Session
-        /// </summary>
-        public MqttClientSession Session
-        {
-            get { return this.session; }
-            set { this.session = value; }
-        }
-#endif
-
-        /// <summary>
-        /// MQTT client settings
-        /// </summary>
-        public MqttSettings Settings
-        {
-            get { return this.settings; }
-        }
-
-#if !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP)) 
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerIpAddress">Broker IP address</param>
-        [Obsolete("Use this ctor MqttClient(string brokerHostName) insted")]
-        public MqttClient(IPAddress brokerIpAddress) :
-            this(brokerIpAddress, MqttSettings.MQTT_BROKER_DEFAULT_PORT, false, null, null, MqttSslProtocols.None)
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerIpAddress">Broker IP address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">Using secure connection</param>
-        /// <param name="caCert">CA certificate for secure connection</param>
-        /// <param name="clientCert">Client certificate</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-        [Obsolete("Use this ctor MqttClient(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert) insted")]
-        public MqttClient(IPAddress brokerIpAddress, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol)
-        {
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            this.Init(brokerIpAddress.ToString(), brokerPort, secure, caCert, clientCert, sslProtocol, null, null);
-#else
-            this.Init(brokerIpAddress.ToString(), brokerPort, secure, caCert, clientCert, sslProtocol);
-#endif
-        }
-#endif
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        public MqttClient(string brokerHostName) :
-#if !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-            this(brokerHostName, MqttSettings.MQTT_BROKER_DEFAULT_PORT, false, null, null, MqttSslProtocols.None)
-#else
-            this(brokerHostName, MqttSettings.MQTT_BROKER_DEFAULT_PORT, false, MqttSslProtocols.None)
-#endif
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">使用安全连接</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-#if !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR && UNITY_WSA_10_0 && !ENABLE_IL2CPP))
-        /// <param name="caCert">CA certificate for secure connection</param>
-        /// <param name="clientCert">Client certificate</param>
-        public MqttClient(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol)            
-#else
-        public MqttClient(string brokerHostName, int brokerPort, bool secure, MqttSslProtocols sslProtocol)            
-#endif
-        {
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK || WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-            this.Init(brokerHostName, brokerPort, secure, caCert, clientCert, sslProtocol, null, null);
-#elif (WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-            this.Init(brokerHostName, brokerPort, secure, sslProtocol);
-#else
-            this.Init(brokerHostName, brokerPort, secure, caCert, clientCert, sslProtocol);
-#endif
-        }
-
-
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK || WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">Using secure connection</param>
-        /// <param name="caCert">CA certificate for secure connection</param>
-        /// <param name="clientCert">Client certificate</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-        /// <param name="userCertificateValidationCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        public MqttClient(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol,
-            RemoteCertificateValidationCallback userCertificateValidationCallback)
-            : this(brokerHostName, brokerPort, secure, caCert, clientCert, sslProtocol, userCertificateValidationCallback, null)
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">Using secure connection</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-        /// <param name="userCertificateValidationCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        /// <param name="userCertificateSelectionCallback">A LocalCertificateSelectionCallback delegate responsible for selecting the certificate used for authentication</param>
-        public MqttClient(string brokerHostName, int brokerPort, bool secure, MqttSslProtocols sslProtocol, 
-            RemoteCertificateValidationCallback userCertificateValidationCallback, 
-            LocalCertificateSelectionCallback userCertificateSelectionCallback)
-            : this(brokerHostName, brokerPort, secure, null, null, sslProtocol, userCertificateValidationCallback, userCertificateSelectionCallback)
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">Using secure connection</param>
-        /// <param name="caCert">CA certificate for secure connection</param>
-        /// <param name="clientCert">Client certificate</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-        /// <param name="userCertificateValidationCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        /// <param name="userCertificateSelectionCallback">A LocalCertificateSelectionCallback delegate responsible for selecting the certificate used for authentication</param>
-        public MqttClient(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol,
-            RemoteCertificateValidationCallback userCertificateValidationCallback,
-            LocalCertificateSelectionCallback userCertificateSelectionCallback)
-        {
-            this.Init(brokerHostName, brokerPort, secure, caCert, clientCert, sslProtocol, userCertificateValidationCallback, userCertificateSelectionCallback);
-        }
-#endif
-
-#if BROKER
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="channel">Network channel for communication</param>
-        public MqttClient(IMqttNetworkChannel channel)
-        {
-            // set default MQTT protocol version (default is 3.1.1)
-            this.ProtocolVersion = MqttProtocolVersion.Version_3_1_1;
-
-            this.channel = channel;
-
-            // reference to MQTT settings
-            this.settings = MqttSettings.Instance;
-
-            // client not connected yet (CONNACK not send from client), some default values
-            this.IsConnected = false;
-            this.ClientId = null;
-            this.CleanSession = true;
-
-            this.keepAliveEvent = new AutoResetEvent(false);
-
-            // queue for handling inflight messages (publishing and acknowledge)
-            this.inflightWaitHandle = new AutoResetEvent(false);
-            this.inflightQueue = new Queue();
-
-            // queue for received message
-            this.receiveEventWaitHandle = new AutoResetEvent(false);
-            this.eventQueue = new Queue();
-            this.internalQueue = new Queue();
-
-            // session
-            this.session = null;
-        }
-#endif
-
-        /// <summary>
-        /// MqttClient initialization
-        /// </summary>
-        /// <param name="brokerHostName">Broker Host Name or IP Address</param>
-        /// <param name="brokerPort">Broker port</param>
-        /// <param name="secure">>Using secure connection</param>
-        /// <param name="caCert">CA certificate for secure connection</param>
-        /// <param name="clientCert">Client certificate</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK || WINDOWS_APP || WINDOWS_PHONE_APP || ((!UNITY_EDITOR && UNITY_WSA_10_0 && !ENABLE_IL2CPP)))
-        /// <param name="userCertificateSelectionCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        /// <param name="userCertificateValidationCallback">A LocalCertificateSelectionCallback delegate responsible for selecting the certificate used for authentication</param>
-        private void Init(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol,
-            RemoteCertificateValidationCallback userCertificateValidationCallback,
-            LocalCertificateSelectionCallback userCertificateSelectionCallback)
-#elif (WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-        private void Init(string brokerHostName, int brokerPort, bool secure, MqttSslProtocols sslProtocol)
-#else
-        private void Init(string brokerHostName, int brokerPort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol)
-#endif
-        {
-            // set default MQTT protocol version (default is 3.1.1)
-            this.ProtocolVersion = MqttProtocolVersion.Version_3_1_1;
-#if !SSL
-            // check security parameters
-            if (secure)
-                throw new ArgumentException("Library compiled without SSL support");
-#endif
-
-            this.brokerHostName = brokerHostName;
-            this.brokerPort = brokerPort;
-
-            // reference to MQTT settings
-            this.settings = MqttSettings.Instance;
-            // set settings port based on secure connection or not
-            if (!secure)
-                this.settings.Port = this.brokerPort;
-            else
-                this.settings.SslPort = this.brokerPort;
-
-            this.syncEndReceiving = new AutoResetEvent(false);
-            this.keepAliveEvent = new AutoResetEvent(false);
-
-            // queue for handling inflight messages (publishing and acknowledge)
-            this.inflightWaitHandle = new AutoResetEvent(false);
-            this.inflightQueue = new Queue();
-
-            // queue for received message
-            this.receiveEventWaitHandle = new AutoResetEvent(false);
-            this.eventQueue = new Queue();
-            this.internalQueue = new Queue();
-
-            // session
-            this.session = null;
-
-            // create network channel
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK || WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-            this.channel = new MqttNetworkChannel(this.brokerHostName, this.brokerPort, secure, caCert, clientCert, sslProtocol, userCertificateValidationCallback, userCertificateSelectionCallback);
-#elif (WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-            this.channel = new MqttNetworkChannel(this.brokerHostName, this.brokerPort, secure, sslProtocol);
-#else
-            this.channel = new MqttNetworkChannel(this.brokerHostName, this.brokerPort, secure, caCert, clientCert, sslProtocol);
-#endif
-        }
-
-        /// <summary>
-        /// Connect to broker
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        /// <returns>Return code of CONNACK message from broker</returns>
-        public byte Connect(string clientId)
-        {
-            return this.Connect(clientId, null, null, false, MqttMsgConnect.QOS_LEVEL_AT_MOST_ONCE, false, null, null, true, MqttMsgConnect.KEEP_ALIVE_PERIOD_DEFAULT);
-        }
-
-        /// <summary>
-        /// Connect to broker
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        /// <param name="username">Username</param>
-        /// <param name="password">Password</param>
-        /// <returns>Return code of CONNACK message from broker</returns>
-        public byte Connect(string clientId,
-            string username,
-            string password)
-        {
-            return this.Connect(clientId, username, password, false, MqttMsgConnect.QOS_LEVEL_AT_MOST_ONCE, false, null, null, true, MqttMsgConnect.KEEP_ALIVE_PERIOD_DEFAULT);
-        }
-
-        /// <summary>
-        /// Connect to broker
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        /// <param name="username">Username</param>
-        /// <param name="password">Password</param>
-        /// <param name="cleanSession">Clean sessione flag</param>
-        /// <param name="keepAlivePeriod">Keep alive period</param>
-        /// <returns>Return code of CONNACK message from broker</returns>
-        public byte Connect(string clientId,
-            string username,
-            string password,
-            bool cleanSession,
-            ushort keepAlivePeriod)
-        {
-            return this.Connect(clientId, username, password, false, MqttMsgConnect.QOS_LEVEL_AT_MOST_ONCE, false, null, null, cleanSession, keepAlivePeriod);
-        }
-
-        /// <summary>
-        /// Connect to broker
-        /// </summary>
-        /// <param name="clientId">Client identifier</param>
-        /// <param name="username">Username</param>
-        /// <param name="password">Password</param>
-        /// <param name="willRetain">Will retain flag</param>
-        /// <param name="willQosLevel">Will QOS level</param>
-        /// <param name="willFlag">Will flag</param>
-        /// <param name="willTopic">Will topic</param>
-        /// <param name="willMessage">Will message</param>
-        /// <param name="cleanSession">Clean sessione flag</param>
-        /// <param name="keepAlivePeriod">Keep alive period</param>
-        /// <returns>Return code of CONNACK message from broker</returns>
-        public byte Connect(string clientId,
-            string username,
-            string password,
-            bool willRetain,
-            byte willQosLevel,
-            bool willFlag,
-            string willTopic,
-            string willMessage,
-            bool cleanSession,
-            ushort keepAlivePeriod)
-        {
-            // create CONNECT message
-            MqttMsgConnect connect = new MqttMsgConnect(clientId,
-                username,
-                password,
-                willRetain,
-                willQosLevel,
-                willFlag,
-                willTopic,
-                willMessage,
-                cleanSession,
-                keepAlivePeriod,
-                (byte)this.ProtocolVersion);
-
-            try
-            {
-                // connect to the broker
-                this.channel.Connect();
-            }
-            catch (Exception ex)
-            {
-                throw new MqttConnectionException("Exception connecting to the broker", ex);
-            }
-
-            this.lastCommTime = 0;
-            this.isRunning = true;
-            this.isConnectionClosing = false;
-            // start thread for receiving messages from broker
-            Fx.StartThread(this.ReceiveThread);
-            
-            MqttMsgConnack connack = (MqttMsgConnack)this.SendReceive(connect);
-            // if connection accepted, start keep alive timer and 
-            if (connack.ReturnCode == MqttMsgConnack.CONN_ACCEPTED)
-            {
-                // set all client properties
-                this.ClientId = clientId;
-                this.CleanSession = cleanSession;
-                this.WillFlag = willFlag;
-                this.WillTopic = willTopic;
-                this.WillMessage = willMessage;
-                this.WillQosLevel = willQosLevel;
-
-                this.keepAlivePeriod = keepAlivePeriod * 1000; // convert in ms
-
-                // restore previous session
-                this.RestoreSession();
-
-                // keep alive period equals zero means turning off keep alive mechanism
-                if (this.keepAlivePeriod != 0)
-                {
-                    // start thread for sending keep alive message to the broker
-                    Fx.StartThread(this.KeepAliveThread);
-                }
-
-                // start thread for raising received message event from broker
-                Fx.StartThread(this.DispatchEventThread);
-                
-                // start thread for handling inflight messages queue to broker asynchronously (publish and acknowledge)
-                Fx.StartThread(this.ProcessInflightThread);
-
-                this.IsConnected = true;
-            }
-            return connack.ReturnCode;
-        }
-
-        /// <summary>
-        /// Disconnect from broker
-        /// </summary>
-        public void Disconnect()
-        {
-            MqttMsgDisconnect disconnect = new MqttMsgDisconnect();
-            this.Send(disconnect);
-
-            // close client
-            this.OnConnectionClosing();
-        }
-
-#if BROKER
-        /// <summary>
-        /// Open client communication
-        /// </summary>
-        public void Open()
-        {
-            this.isRunning = true;
-
-            // start thread for receiving messages from client
-            Fx.StartThread(this.ReceiveThread);
-
-            // start thread for raising received message event from client
-            Fx.StartThread(this.DispatchEventThread);
-
-            // start thread for handling inflight messages queue to client asynchronously (publish and acknowledge)
-            Fx.StartThread(this.ProcessInflightThread);   
-        }
-#endif
-
-        /// <summary>
-        /// Close client
-        /// </summary>
-#if BROKER
-        public void Close()
-#else
-        private void Close()
-#endif
-        {
-            // stop receiving thread
-            this.isRunning = false;
-
-            // wait end receive event thread
-            if (this.receiveEventWaitHandle != null)
-                this.receiveEventWaitHandle.Set();
-
-            // wait end process inflight thread
-            if (this.inflightWaitHandle != null)
-                this.inflightWaitHandle.Set();
-
-#if BROKER
-            // unlock keep alive thread
-            this.keepAliveEvent.Set();
-#else
-            // unlock keep alive thread and wait
-            this.keepAliveEvent.Set();
-
-            if (this.keepAliveEventEnd != null)
-                this.keepAliveEventEnd.WaitOne();
-#endif
-
-            // clear all queues
-            this.inflightQueue.Clear();
-            this.internalQueue.Clear();
-            this.eventQueue.Clear();
-
-            // close network channel
-            this.channel.Close();
-
-            this.IsConnected = false;
-        }
-
-        /// <summary>
-        /// Execute ping to broker for keep alive
-        /// </summary>
-        /// <returns>PINGRESP message from broker</returns>
-        private MqttMsgPingResp Ping()
-        {
-            MqttMsgPingReq pingreq = new MqttMsgPingReq();
-            try
-            {
-                // broker must send PINGRESP within timeout equal to keep alive period
-                return (MqttMsgPingResp)this.SendReceive(pingreq, this.keepAlivePeriod);
-            }
-            catch (Exception e)
-            {
-#if TRACE
-                MqttUtility.Trace.WriteLine(TraceLevel.Error, "Exception occurred: {0}", e.ToString());
-#endif
-
-                // client must close connection
-                this.OnConnectionClosing();
-                return null;
-            }
-        }
-
-#if BROKER
-        /// <summary>
-        /// Send CONNACK message to the client (connection accepted or not)
-        /// </summary>
-        /// <param name="connect">CONNECT message with all client information</param>
-        /// <param name="returnCode">Return code for CONNACK message</param>
-        /// <param name="clientId">If not null, client id assigned by broker</param>
-        /// <param name="sessionPresent">Session present on the broker</param>
-        public void Connack(MqttMsgConnect connect, byte returnCode, string clientId, bool sessionPresent)
-        {
-            this.lastCommTime = 0;
-
-            // create CONNACK message and ...
-            MqttMsgConnack connack = new MqttMsgConnack();
-            connack.ReturnCode = returnCode;
-            // [v3.1.1] session present flag
-            if (this.ProtocolVersion == MqttProtocolVersion.Version_3_1_1)
-                connack.SessionPresent = sessionPresent;
-            // ... send it to the client
-            this.Send(connack);
-
-            // connection accepted, start keep alive thread checking
-            if (connack.ReturnCode == MqttMsgConnack.CONN_ACCEPTED)
-            {
-                // [v3.1.1] if client id isn't null, the CONNECT message has a cliend id with zero bytes length
-                //          and broker assigned a unique identifier to the client
-                this.ClientId = (clientId == null) ? connect.ClientId : clientId;
-                this.CleanSession = connect.CleanSession;
-                this.WillFlag = connect.WillFlag;
-                this.WillTopic = connect.WillTopic;
-                this.WillMessage = connect.WillMessage;
-                this.WillQosLevel = connect.WillQosLevel;
-
-                this.keepAlivePeriod = connect.KeepAlivePeriod * 1000; // convert in ms
-                // broker has a tolerance of 1.5 specified keep alive period
-                this.keepAlivePeriod += (this.keepAlivePeriod / 2);
-
-                // start thread for checking keep alive period timeout
-                Fx.StartThread(this.KeepAliveThread);
-
-                this.isConnectionClosing = false;
-                this.IsConnected = true;
-            }
-            // connection refused, close TCP/IP channel
-            else
-            {
-                this.Close();
-            }
-        }
-
-        /// <summary>
-        /// Send SUBACK message to the client
-        /// </summary>
-        /// <param name="messageId">Message Id for the SUBSCRIBE message that is being acknowledged</param>
-        /// <param name="grantedQosLevels">Granted QoS Levels</param>
-        public void Suback(ushort messageId, byte[] grantedQosLevels)
-        {
-            MqttMsgSuback suback = new MqttMsgSuback();
-            suback.MessageId = messageId;
-            suback.GrantedQoSLevels = grantedQosLevels;
-
-            this.Send(suback);
-        }
-
-        /// <summary>
-        /// Send UNSUBACK message to the client
-        /// </summary>
-        /// <param name="messageId">Message Id for the UNSUBSCRIBE message that is being acknowledged</param>
-        public void Unsuback(ushort messageId)
-        {
-            MqttMsgUnsuback unsuback = new MqttMsgUnsuback();
-            unsuback.MessageId = messageId;
-
-            this.Send(unsuback);
-        }
-#endif
-
-        /// <summary>
-        /// Subscribe for message topics
-        /// </summary>
-        /// <param name="topics">List of topics to subscribe</param>
-        /// <param name="qosLevels">QOS levels related to topics</param>
-        /// <returns>Message Id related to SUBSCRIBE message</returns>
-        public ushort Subscribe(string[] topics, byte[] qosLevels)
-        {
-            MqttMsgSubscribe subscribe =
-                new MqttMsgSubscribe(topics, qosLevels);
-            subscribe.MessageId = this.GetMessageId();
-
-            // enqueue subscribe request into the inflight queue
-            this.EnqueueInflight(subscribe, MqttMsgFlow.ToPublish);
-
-            return subscribe.MessageId;
-        }
-
-        /// <summary>
-        /// Unsubscribe for message topics
-        /// </summary>
-        /// <param name="topics">List of topics to unsubscribe</param>
-        /// <returns>Message Id in UNSUBACK message from broker</returns>
-        public ushort Unsubscribe(string[] topics)
-        {
-            MqttMsgUnsubscribe unsubscribe =
-                new MqttMsgUnsubscribe(topics);
-            unsubscribe.MessageId = this.GetMessageId();
-
-            // enqueue unsubscribe request into the inflight queue
-            this.EnqueueInflight(unsubscribe, MqttMsgFlow.ToPublish);
-
-            return unsubscribe.MessageId;
-        }
-
-        /// <summary>
-        /// 异步发布消息（QoS级别0且未保留）
-        /// Publish a message asynchronously (QoS Level 0 and not retained)
-        /// </summary>
-        /// <param name="topic">Message topic</param>
-        /// <param name="message">Message data (payload)</param>
-        /// <returns>Message Id related to PUBLISH message</returns>
-        public ushort Publish(string topic, byte[] message)
-        {
-            return this.Publish(topic, message, MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE, false);
-        }
-
-        /// <summary>
-        /// 异步发布消息
-        /// </summary>
-        /// <param name="topic">Message topic</param>
-        /// <param name="message">Message data (payload)</param>
-        /// <param name="qosLevel">QoS Level</param>
-        /// <param name="retain">Retain flag</param>
-        /// <returns>Message Id related to PUBLISH message</returns>
-        public ushort Publish(string topic, byte[] message, byte qosLevel, bool retain)
-        {
-            MqttMsgPublish publish =
-                    new MqttMsgPublish(topic, message, false, qosLevel, retain);
-            publish.MessageId = this.GetMessageId();
-
-            // enqueue message to publish into the inflight queue
-            bool enqueue = this.EnqueueInflight(publish, MqttMsgFlow.ToPublish);
-
-            // message enqueued
-            if (enqueue)
-                return publish.MessageId;
-            // infligh queue full, message not enqueued
-            else
-                throw new MqttClientException(MqttClientErrorCode.InflightQueueFull);
-        }
-
-        /// <summary>
-        /// Wrapper method for raising events
-        /// </summary>
-        /// <param name="internalEvent">Internal event</param>
-        private void OnInternalEvent(InternalEvent internalEvent)
-        {
-            lock (this.eventQueue)
-            {
-                this.eventQueue.Enqueue(internalEvent);
-            }
-
-            this.receiveEventWaitHandle.Set();
-        }
-
-        /// <summary>
-        /// Wrapper method for raising closing connection event
-        /// </summary>
-        private void OnConnectionClosing()
-        {
-            if (!this.isConnectionClosing)
-            {
-                this.isConnectionClosing = true;
-                this.receiveEventWaitHandle.Set();
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising PUBLISH message received event
-        /// </summary>
-        /// <param name="publish">PUBLISH message received</param>
-        private void OnMqttMsgPublishReceived(MqttMsgPublish publish)
-        {
-            if (this.MqttMsgPublishReceived != null)
-            {
-                this.MqttMsgPublishReceived(this,
-                    new MqttMsgPublishEventArgs(publish.Topic, publish.Message, publish.DupFlag, publish.QosLevel, publish.Retain));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising published message event
-        /// </summary>
-        /// <param name="messageId">Message identifier for published message</param>
-        /// <param name="isPublished">Publish flag</param>
-        private void OnMqttMsgPublished(ushort messageId, bool isPublished)
-        {
-            if (this.MqttMsgPublished != null)
-            {
-                this.MqttMsgPublished(this,
-                    new MqttMsgPublishedEventArgs(messageId, isPublished));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising subscribed topic event
-        /// </summary>
-        /// <param name="suback">SUBACK message received</param>
-        private void OnMqttMsgSubscribed(MqttMsgSuback suback)
-        {
-            if (this.MqttMsgSubscribed != null)
-            {
-                this.MqttMsgSubscribed(this,
-                    new MqttMsgSubscribedEventArgs(suback.MessageId, suback.GrantedQoSLevels));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising unsubscribed topic event
-        /// </summary>
-        /// <param name="messageId">Message identifier for unsubscribed topic</param>
-        private void OnMqttMsgUnsubscribed(ushort messageId)
-        {
-            if (this.MqttMsgUnsubscribed != null)
-            {
-                this.MqttMsgUnsubscribed(this,
-                    new MqttMsgUnsubscribedEventArgs(messageId));
-            }
-        }
-
-#if BROKER
-        /// <summary>
-        /// Wrapper method for raising SUBSCRIBE message event
-        /// </summary>
-        /// <param name="messageId">Message identifier for subscribe topics request</param>
-        /// <param name="topics">Topics requested to subscribe</param>
-        /// <param name="qosLevels">List of QOS Levels requested</param>
-        private void OnMqttMsgSubscribeReceived(ushort messageId, string[] topics, byte[] qosLevels)
-        {
-            if (this.MqttMsgSubscribeReceived != null)
-            {
-                this.MqttMsgSubscribeReceived(this,
-                    new MqttMsgSubscribeEventArgs(messageId, topics, qosLevels));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising UNSUBSCRIBE message event
-        /// </summary>
-        /// <param name="messageId">Message identifier for unsubscribe topics request</param>
-        /// <param name="topics">Topics requested to unsubscribe</param>
-        private void OnMqttMsgUnsubscribeReceived(ushort messageId, string[] topics)
-        {
-            if (this.MqttMsgUnsubscribeReceived != null)
-            {
-                this.MqttMsgUnsubscribeReceived(this,
-                    new MqttMsgUnsubscribeEventArgs(messageId, topics));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising CONNECT message event
-        /// </summary>
-        private void OnMqttMsgConnected(MqttMsgConnect connect)
-        {
-            if (this.MqttMsgConnected != null)
-            {
-                this.ProtocolVersion = (MqttProtocolVersion)connect.ProtocolVersion;
-                this.MqttMsgConnected(this, new MqttMsgConnectEventArgs(connect));
-            }
-        }
-
-        /// <summary>
-        /// Wrapper method for raising DISCONNECT message event
-        /// </summary>
-        private void OnMqttMsgDisconnected()
-        {
-            if (this.MqttMsgDisconnected != null)
-            {
-                this.MqttMsgDisconnected(this, EventArgs.Empty);
-            }
-        }
-#endif
-
-        /// <summary>
-        /// Wrapper method for peer/client disconnection
-        /// </summary>
-        private void OnConnectionClosed()
-        {
-            if (this.ConnectionClosed != null)
-            {
-                this.ConnectionClosed(this, EventArgs.Empty);
-            }
-        }
-
-        /// <summary>
-        /// Send a message
-        /// </summary>
-        /// <param name="msgBytes">Message bytes</param>
-        private void Send(byte[] msgBytes)
-        {
-            try
-            {
-                // send message
-                this.channel.Send(msgBytes);
-
-#if !BROKER
-                // update last message sent ticks
-                this.lastCommTime = Environment.TickCount;
-#endif
-            }
-            catch (Exception e)
-            {
-#if TRACE
-                MqttUtility.Trace.WriteLine(TraceLevel.Error, "Exception occurred: {0}", e.ToString());
-#endif
-
-                throw new MqttCommunicationException(e);
-            }
-        }
-
-        /// <summary>
-        /// Send a message
-        /// </summary>
-        /// <param name="msg">Message</param>
-        private void Send(MqttMsgBase msg)
-        {
-#if TRACE
-            MqttUtility.Trace.WriteLine(TraceLevel.Frame, "SEND {0}", msg);
-#endif
-            this.Send(msg.GetBytes((byte)this.ProtocolVersion));
-        }
-
-        /// <summary>
-        /// Send a message to the broker and wait answer
-        /// </summary>
-        /// <param name="msgBytes">Message bytes</param>
-        /// <returns>MQTT message response</returns>
-        private MqttMsgBase SendReceive(byte[] msgBytes)
-        {
-            return this.SendReceive(msgBytes, MqttSettings.MQTT_DEFAULT_TIMEOUT);
-        }
-
-        /// <summary>
-        /// Send a message to the broker and wait answer
-        /// </summary>
-        /// <param name="msgBytes">Message bytes</param>
-        /// <param name="timeout">Timeout for receiving answer</param>
-        /// <returns>MQTT message response</returns>
-        private MqttMsgBase SendReceive(byte[] msgBytes, int timeout)
-        {
-            // reset handle before sending
-            this.syncEndReceiving.Reset();
-            try
-            {
-                // send message
-                this.channel.Send(msgBytes);
-
-                // update last message sent ticks
-                this.lastCommTime = Environment.TickCount;
-            }
-            catch (Exception e)
-            {
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK || WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-                if (typeof(SocketException) == e.GetType())
-                {
-                    // connection reset by broker
-                    if (((SocketException)e).SocketErrorCode == SocketError.ConnectionReset)
-                        this.IsConnected = false;
-                }
-#endif
-#if TRACE
-                MqttUtility.Trace.WriteLine(TraceLevel.Error, "Exception occurred: {0}", e.ToString());
-#endif
-
-                throw new MqttCommunicationException(e);
-            }
-
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            // wait for answer from broker
-            if (this.syncEndReceiving.WaitOne(timeout, false))
-#else
-            // wait for answer from broker
-            if (this.syncEndReceiving.WaitOne(timeout))
-#endif
-            {
-                // message received without exception
-                if (this.exReceiving == null)
-                    return this.msgReceived;
-                // receiving thread catched exception
-                else
-                    throw this.exReceiving;
-            }
-            else
-            {
-                // throw timeout exception
-                throw new MqttCommunicationException();
-            }
-        }
-
-        /// <summary>
-        /// Send a message to the broker and wait answer
-        /// </summary>
-        /// <param name="msg">Message</param>
-        /// <returns>MQTT message response</returns>
-        private MqttMsgBase SendReceive(MqttMsgBase msg)
-        {
-            return this.SendReceive(msg, MqttSettings.MQTT_DEFAULT_TIMEOUT);
-        }
-
-        /// <summary>
-        /// Send a message to the broker and wait answer
-        /// </summary>
-        /// <param name="msg">Message</param>
-        /// <param name="timeout">Timeout for receiving answer</param>
-        /// <returns>MQTT message response</returns>
-        private MqttMsgBase SendReceive(MqttMsgBase msg, int timeout)
-        {
-#if TRACE
-            MqttUtility.Trace.WriteLine(TraceLevel.Frame, "SEND {0}", msg);
-#endif
-            return this.SendReceive(msg.GetBytes((byte)this.ProtocolVersion), timeout);
-        }
-
-        /// <summary>
-        /// Enqueue a message into the inflight queue
-        /// </summary>
-        /// <param name="msg">Message to enqueue</param>
-        /// <param name="flow">Message flow (publish, acknowledge)</param>
-        /// <returns>Message enqueued or not</returns>
-        private bool EnqueueInflight(MqttMsgBase msg, MqttMsgFlow flow)
-        {
-            // enqueue is needed (or not)
-            bool enqueue = true;
-
-            // if it is a PUBLISH message with QoS Level 2
-            if ((msg.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                (msg.QosLevel == MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE))
-            {
-                lock (this.inflightQueue)
-                {
-                    // if it is a PUBLISH message already received (it is in the inflight queue), the publisher
-                    // re-sent it because it didn't received the PUBREC. In this case, we have to re-send PUBREC
-
-                    // NOTE : I need to find on message id and flow because the broker could be publish/received
-                    //        to/from client and message id could be the same (one tracked by broker and the other by client)
-                    MqttMsgContextFinder msgCtxFinder = new MqttMsgContextFinder(msg.MessageId, MqttMsgFlow.ToAcknowledge);
-                    MqttMsgContext msgCtx = (MqttMsgContext)this.inflightQueue.Get(msgCtxFinder.Find);
-
-                    // the PUBLISH message is alredy in the inflight queue, we don't need to re-enqueue but we need
-                    // to change state to re-send PUBREC
-                    if (msgCtx != null)
-                    {
-                        msgCtx.State = MqttMsgState.QueuedQos2;
-                        msgCtx.Flow = MqttMsgFlow.ToAcknowledge;
-                        enqueue = false;
-                    }
-                }
-            }
-
-            if (enqueue)
-            {
-                // set a default state
-                MqttMsgState state = MqttMsgState.QueuedQos0;
-
-                // based on QoS level, the messages flow between broker and client changes
-                switch (msg.QosLevel)
-                {
-                    // QoS Level 0
-                    case MqttMsgBase.QOS_LEVEL_AT_MOST_ONCE:
-
-                        state = MqttMsgState.QueuedQos0;
-                        break;
-
-                    // QoS Level 1
-                    case MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE:
-
-                        state = MqttMsgState.QueuedQos1;
-                        break;
-
-                    // QoS Level 2
-                    case MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE:
-
-                        state = MqttMsgState.QueuedQos2;
-                        break;
-                }
-
-                // [v3.1.1] SUBSCRIBE and UNSUBSCRIBE aren't "officially" QOS = 1
-                //          so QueuedQos1 state isn't valid for them
-                if (msg.Type == MqttMsgBase.MQTT_MSG_SUBSCRIBE_TYPE)
-                    state = MqttMsgState.SendSubscribe;
-                else if (msg.Type == MqttMsgBase.MQTT_MSG_UNSUBSCRIBE_TYPE)
-                    state = MqttMsgState.SendUnsubscribe;
-
-                // queue message context
-                MqttMsgContext msgContext = new MqttMsgContext()
-                {
-                    Message = msg,
-                    State = state,
-                    Flow = flow,
-                    Attempt = 0
-                };
-
-                lock (this.inflightQueue)
-                {
-                    // check number of messages inside inflight queue 
-                    enqueue = (this.inflightQueue.Count < this.settings.InflightQueueSize);
-
-                    if (enqueue)
-                    {
-                        // enqueue message and unlock send thread
-                        this.inflightQueue.Enqueue(msgContext);
-
-#if TRACE
-                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "enqueued {0}", msg);
-#endif
-
-                        // PUBLISH message
-                        if (msg.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE)
-                        {
-                            // to publish and QoS level 1 or 2
-                            if ((msgContext.Flow == MqttMsgFlow.ToPublish) &&
-                                ((msg.QosLevel == MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE) ||
-                                 (msg.QosLevel == MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE)))
-                            {
-                                if (this.session != null)
-                                    this.session.InflightMessages.Add(msgContext.Key, msgContext);
-                            }
-                            // to acknowledge and QoS level 2
-                            else if ((msgContext.Flow == MqttMsgFlow.ToAcknowledge) &&
-                                     (msg.QosLevel == MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE))
-                            {
-                                if (this.session != null)
-                                    this.session.InflightMessages.Add(msgContext.Key, msgContext);
-                            }
-                        }
-                    }
-                }
-            }
-
-            this.inflightWaitHandle.Set();
-
-            return enqueue;
-        }
-
-        /// <summary>
-        /// Enqueue a message into the internal queue
-        /// </summary>
-        /// <param name="msg">Message to enqueue</param>
-        private void EnqueueInternal(MqttMsgBase msg)
-        {
-            // enqueue is needed (or not)
-            bool enqueue = true;
-
-            // if it is a PUBREL message (for QoS Level 2)
-            if (msg.Type == MqttMsgBase.MQTT_MSG_PUBREL_TYPE)
-            {
-                lock (this.inflightQueue)
-                {
-                    // if it is a PUBREL but the corresponding PUBLISH isn't in the inflight queue,
-                    // it means that we processed PUBLISH message and received PUBREL and we sent PUBCOMP
-                    // but publisher didn't receive PUBCOMP so it re-sent PUBREL. We need only to re-send PUBCOMP.
-
-                    // NOTE : I need to find on message id and flow because the broker could be publish/received
-                    //        to/from client and message id could be the same (one tracked by broker and the other by client)
-                    MqttMsgContextFinder msgCtxFinder = new MqttMsgContextFinder(msg.MessageId, MqttMsgFlow.ToAcknowledge);
-                    MqttMsgContext msgCtx = (MqttMsgContext)this.inflightQueue.Get(msgCtxFinder.Find);
-
-                    // the PUBLISH message isn't in the inflight queue, it was already processed so
-                    // we need to re-send PUBCOMP only
-                    if (msgCtx == null)
-                    {
-                        MqttMsgPubcomp pubcomp = new MqttMsgPubcomp();
-                        pubcomp.MessageId = msg.MessageId;
-
-                        this.Send(pubcomp);
-
-                        enqueue = false;
-                    }
-                }
-            }
-            // if it is a PUBCOMP message (for QoS Level 2)
-            else if (msg.Type == MqttMsgBase.MQTT_MSG_PUBCOMP_TYPE)
-            {
-                lock (this.inflightQueue)
-                {
-                    // if it is a PUBCOMP but the corresponding PUBLISH isn't in the inflight queue,
-                    // it means that we sent PUBLISH message, sent PUBREL (after receiving PUBREC) and already received PUBCOMP
-                    // but publisher didn't receive PUBREL so it re-sent PUBCOMP. We need only to ignore this PUBCOMP.
-
-                    // NOTE : I need to find on message id and flow because the broker could be publish/received
-                    //        to/from client and message id could be the same (one tracked by broker and the other by client)
-                    MqttMsgContextFinder msgCtxFinder = new MqttMsgContextFinder(msg.MessageId, MqttMsgFlow.ToPublish);
-                    MqttMsgContext msgCtx = (MqttMsgContext)this.inflightQueue.Get(msgCtxFinder.Find);
-
-                    // the PUBLISH message isn't in the inflight queue, it was already sent so we need to ignore this PUBCOMP
-                    if (msgCtx == null)
-                    {
-                        enqueue = false;
-                    }
-                }
-            }
-            // if it is a PUBREC message (for QoS Level 2)
-            else if (msg.Type == MqttMsgBase.MQTT_MSG_PUBREC_TYPE)
-            {
-                lock (this.inflightQueue)
-                {
-                    // if it is a PUBREC but the corresponding PUBLISH isn't in the inflight queue,
-                    // it means that we sent PUBLISH message more times (retries) but broker didn't send PUBREC in time
-                    // the publish is failed and we need only to ignore this PUBREC.
-
-                    // NOTE : I need to find on message id and flow because the broker could be publish/received
-                    //        to/from client and message id could be the same (one tracked by broker and the other by client)
-                    MqttMsgContextFinder msgCtxFinder = new MqttMsgContextFinder(msg.MessageId, MqttMsgFlow.ToPublish);
-                    MqttMsgContext msgCtx = (MqttMsgContext)this.inflightQueue.Get(msgCtxFinder.Find);
-
-                    // the PUBLISH message isn't in the inflight queue, it was already sent so we need to ignore this PUBREC
-                    if (msgCtx == null)
-                    {
-                        enqueue = false;
-                    }
-                }
-            }
-
-            if (enqueue)
-            {
-                lock (this.internalQueue)
-                {
-                    this.internalQueue.Enqueue(msg);
-#if TRACE
-                    MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "enqueued {0}", msg);
-#endif
-                    this.inflightWaitHandle.Set();
-                }
-            }
-        }
-
-        /// <summary>
-        /// Thread for receiving messages
-        /// </summary>
-        private void ReceiveThread()
-        {
-            int readBytes = 0;
-            byte[] fixedHeaderFirstByte = new byte[1];
-            byte msgType;
-
-            while (this.isRunning)
-            {
-                try
-                {
-                    // read first byte (fixed header)
-                    readBytes = this.channel.Receive(fixedHeaderFirstByte);
-
-                    if (readBytes > 0)
-                    {
-#if BROKER
-                        // update last message received ticks
-                        this.lastCommTime = Environment.TickCount;
-#endif
-
-                        // extract message type from received byte
-                        msgType = (byte)((fixedHeaderFirstByte[0] & MqttMsgBase.MSG_TYPE_MASK) >> MqttMsgBase.MSG_TYPE_OFFSET);
-
-                        switch (msgType)
-                        {
-                            // CONNECT message received
-                            case MqttMsgBase.MQTT_MSG_CONNECT_TYPE:
-
-#if BROKER
-                                MqttMsgConnect connect = MqttMsgConnect.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                Trace.WriteLine(TraceLevel.Frame, "RECV {0}", connect);
-#endif
-
-                                // raise message received event
-                                this.OnInternalEvent(new MsgInternalEvent(connect));
-                                break;
-#else
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-                                
-                            // CONNACK message received
-                            case MqttMsgBase.MQTT_MSG_CONNACK_TYPE:
-
-#if BROKER
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#else
-                                this.msgReceived = MqttMsgConnack.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", this.msgReceived);
-#endif
-                                this.syncEndReceiving.Set();
-                                break;
-#endif
-
-                            // PINGREQ message received
-                            case MqttMsgBase.MQTT_MSG_PINGREQ_TYPE:
-
-#if BROKER
-                                this.msgReceived = MqttMsgPingReq.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                Trace.WriteLine(TraceLevel.Frame, "RECV {0}", this.msgReceived);
-#endif
-
-                                MqttMsgPingResp pingresp = new MqttMsgPingResp();
-                                this.Send(pingresp);
-
-                                break;
-#else
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                            // PINGRESP message received
-                            case MqttMsgBase.MQTT_MSG_PINGRESP_TYPE:
-
-#if BROKER
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#else
-                                this.msgReceived = MqttMsgPingResp.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", this.msgReceived);
-#endif
-                                this.syncEndReceiving.Set();
-                                break;
-#endif
-
-                            // SUBSCRIBE message received
-                            case MqttMsgBase.MQTT_MSG_SUBSCRIBE_TYPE:
-
-#if BROKER
-                                MqttMsgSubscribe subscribe = MqttMsgSubscribe.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                Trace.WriteLine(TraceLevel.Frame, "RECV {0}", subscribe);
-#endif
-
-                                // raise message received event
-                                this.OnInternalEvent(new MsgInternalEvent(subscribe));
-
-                                break;
-#else
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                            // SUBACK message received
-                            case MqttMsgBase.MQTT_MSG_SUBACK_TYPE:
-
-#if BROKER
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#else
-                                // enqueue SUBACK message received (for QoS Level 1) into the internal queue
-                                MqttMsgSuback suback = MqttMsgSuback.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", suback);
-#endif
-
-                                // enqueue SUBACK message into the internal queue
-                                this.EnqueueInternal(suback);
-
-                                break;
-#endif
-
-                            // PUBLISH message received
-                            case MqttMsgBase.MQTT_MSG_PUBLISH_TYPE:
-
-                                MqttMsgPublish publish = MqttMsgPublish.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", publish);
-#endif
-
-                                // enqueue PUBLISH message to acknowledge into the inflight queue
-                                this.EnqueueInflight(publish, MqttMsgFlow.ToAcknowledge);
-
-                                break;
-
-                            // PUBACK message received
-                            case MqttMsgBase.MQTT_MSG_PUBACK_TYPE:
-
-                                // enqueue PUBACK message received (for QoS Level 1) into the internal queue
-                                MqttMsgPuback puback = MqttMsgPuback.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", puback);
-#endif
-
-                                // enqueue PUBACK message into the internal queue
-                                this.EnqueueInternal(puback);
-
-                                break;
-
-                            // PUBREC message received
-                            case MqttMsgBase.MQTT_MSG_PUBREC_TYPE:
-
-                                // enqueue PUBREC message received (for QoS Level 2) into the internal queue
-                                MqttMsgPubrec pubrec = MqttMsgPubrec.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", pubrec);
-#endif
-
-                                // enqueue PUBREC message into the internal queue
-                                this.EnqueueInternal(pubrec);
-
-                                break;
-
-                            // PUBREL message received
-                            case MqttMsgBase.MQTT_MSG_PUBREL_TYPE:
-
-                                // enqueue PUBREL message received (for QoS Level 2) into the internal queue
-                                MqttMsgPubrel pubrel = MqttMsgPubrel.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", pubrel);
-#endif
-
-                                // enqueue PUBREL message into the internal queue
-                                this.EnqueueInternal(pubrel);
-
-                                break;
-                                
-                            // PUBCOMP message received
-                            case MqttMsgBase.MQTT_MSG_PUBCOMP_TYPE:
-
-                                // enqueue PUBCOMP message received (for QoS Level 2) into the internal queue
-                                MqttMsgPubcomp pubcomp = MqttMsgPubcomp.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", pubcomp);
-#endif
-
-                                // enqueue PUBCOMP message into the internal queue
-                                this.EnqueueInternal(pubcomp);
-
-                                break;
-
-                            // UNSUBSCRIBE message received
-                            case MqttMsgBase.MQTT_MSG_UNSUBSCRIBE_TYPE:
-
-#if BROKER
-                                MqttMsgUnsubscribe unsubscribe = MqttMsgUnsubscribe.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                Trace.WriteLine(TraceLevel.Frame, "RECV {0}", unsubscribe);
-#endif
-
-                                // raise message received event
-                                this.OnInternalEvent(new MsgInternalEvent(unsubscribe));
-
-                                break;
-#else
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                            // UNSUBACK message received
-                            case MqttMsgBase.MQTT_MSG_UNSUBACK_TYPE:
-
-#if BROKER
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#else
-                                // enqueue UNSUBACK message received (for QoS Level 1) into the internal queue
-                                MqttMsgUnsuback unsuback = MqttMsgUnsuback.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Frame, "RECV {0}", unsuback);
-#endif
-
-                                // enqueue UNSUBACK message into the internal queue
-                                this.EnqueueInternal(unsuback);
-
-                                break;
-#endif
-
-                            // DISCONNECT message received
-                            case MqttMsgDisconnect.MQTT_MSG_DISCONNECT_TYPE:
-
-#if BROKER
-                                MqttMsgDisconnect disconnect = MqttMsgDisconnect.Parse(fixedHeaderFirstByte[0], (byte)this.ProtocolVersion, this.channel);
-#if TRACE
-                                Trace.WriteLine(TraceLevel.Frame, "RECV {0}", disconnect);
-#endif
-
-                                // raise message received event
-                                this.OnInternalEvent(new MsgInternalEvent(disconnect));
-
-                                break;
-#else
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                            default:
-
-                                throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-                        }
-
-                        this.exReceiving = null;
-                    }
-                    // zero bytes read, peer gracefully closed socket
-                    else
-                    {
-                        // wake up thread that will notify connection is closing
-                        this.OnConnectionClosing();
-                    }
-                }
-                catch (Exception e)
-                {
-#if TRACE
-                    MqttUtility.Trace.WriteLine(TraceLevel.Error, "Exception occurred: {0}", e.ToString());
-#endif
-                    this.exReceiving = new MqttCommunicationException(e);
-
-                    bool close = false;
-                    if (e.GetType() == typeof(MqttClientException))
-                    {
-                        // [v3.1.1] scenarios the receiver MUST close the network connection
-                        MqttClientException ex = e as MqttClientException;
-                        close = ((ex.ErrorCode == MqttClientErrorCode.InvalidFlagBits) || 
-                                (ex.ErrorCode == MqttClientErrorCode.InvalidProtocolName) ||
-                                (ex.ErrorCode == MqttClientErrorCode.InvalidConnectFlags));
-                    }
-#if !(WINDOWS_APP || WINDOWS_PHONE_APP || (!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP))
-                    else if ((e.GetType() == typeof(IOException)) || (e.GetType() == typeof(SocketException)) ||
-                             ((e.InnerException != null) && (e.InnerException.GetType() == typeof(SocketException)))) // added for SSL/TLS incoming connection that use SslStream that wraps SocketException
-                    {
-                        close = true;
-                    }
-#endif
-                    
-                    if (close)
-                    {
-                        // wake up thread that will notify connection is closing
-                        this.OnConnectionClosing();
-                    }
-                }
-            }
-        }
-
-        /// <summary>
-        /// Thread for handling keep alive message
-        /// </summary>
-        private void KeepAliveThread()
-        {
-            int delta = 0;
-            int wait = this.keepAlivePeriod;
-            
-            // create event to signal that current thread is end
-            this.keepAliveEventEnd = new AutoResetEvent(false);
-
-            while (this.isRunning)
-            {
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                // waiting...
-                this.keepAliveEvent.WaitOne(wait, false);
-#else
-                // waiting...
-                this.keepAliveEvent.WaitOne(wait);
-#endif
-
-                if (this.isRunning)
-                {
-                    delta = Environment.TickCount - this.lastCommTime;
-
-                    // if timeout exceeded ...
-                    if (delta >= this.keepAlivePeriod)
-                    {
-#if BROKER
-                        // client must close connection
-                        this.OnConnectionClosing();
-#else
-                        // ... send keep alive
-						this.Ping();
-						wait = this.keepAlivePeriod;
-#endif
-                    }
-                    else
-                    {
-                        // update waiting time
-                        wait = this.keepAlivePeriod - delta;
-                    }
-                }
-            }
-
-            // signal thread end
-            this.keepAliveEventEnd.Set();
-        }
-
-        /// <summary>
-        /// Thread for raising event
-        /// </summary>
-        private void DispatchEventThread()
-        {
-            while (this.isRunning)
-            {
-#if BROKER
-                if ((this.eventQueue.Count == 0) && !this.isConnectionClosing)
-                {
-                    // broker need to receive the first message (CONNECT)
-                    // within a reasonable amount of time after TCP/IP connection
-                    if (!this.IsConnected)
-                    {
-                        // wait on receiving message from client with a connection timeout
-                        if (!this.receiveEventWaitHandle.WaitOne(this.settings.TimeoutOnConnection))
-                        {
-                            // client must close connection
-                            this.Close();
-
-                            // client raw disconnection
-                            this.OnConnectionClosed();
-                        }
-                    }
-                    else
-                    {
-                        // wait on receiving message from client
-                        this.receiveEventWaitHandle.WaitOne();
-                    }
-                }
-#else
-                if ((this.eventQueue.Count == 0) && !this.isConnectionClosing)
-                    // wait on receiving message from client
-                    this.receiveEventWaitHandle.WaitOne();
-#endif
-
-                // check if it is running or we are closing client
-                if (this.isRunning)
-                {
-                    // get event from queue
-                    InternalEvent internalEvent = null;
-                    lock (this.eventQueue)
-                    {
-                        if (this.eventQueue.Count > 0)
-                            internalEvent = (InternalEvent)this.eventQueue.Dequeue();
-                    }
-
-                    // it's an event with a message inside
-                    if (internalEvent != null)
-                    {
-                        MqttMsgBase msg = ((MsgInternalEvent)internalEvent).Message;
-
-                        if (msg != null)
-                        {
-                            switch (msg.Type)
-                            {
-                                // CONNECT message received
-                                case MqttMsgBase.MQTT_MSG_CONNECT_TYPE:
-
-#if BROKER
-                                    // raise connected client event (CONNECT message received)
-                                    this.OnMqttMsgConnected((MqttMsgConnect)msg);
-                                    break;
-#else
-                                    throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                                // SUBSCRIBE message received
-                                case MqttMsgBase.MQTT_MSG_SUBSCRIBE_TYPE:
-
-#if BROKER
-                                    MqttMsgSubscribe subscribe = (MqttMsgSubscribe)msg;
-                                    // raise subscribe topic event (SUBSCRIBE message received)
-                                    this.OnMqttMsgSubscribeReceived(subscribe.MessageId, subscribe.Topics, subscribe.QoSLevels);
-                                    break;
-#else
-                                    throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                                // SUBACK message received
-                                case MqttMsgBase.MQTT_MSG_SUBACK_TYPE:
-
-                                    // raise subscribed topic event (SUBACK message received)
-                                    this.OnMqttMsgSubscribed((MqttMsgSuback)msg);
-                                    break;
-
-                                // PUBLISH message received
-                                case MqttMsgBase.MQTT_MSG_PUBLISH_TYPE:
-
-                                    // PUBLISH message received in a published internal event, no publish succeeded
-                                    if (internalEvent.GetType() == typeof(MsgPublishedInternalEvent))
-                                        this.OnMqttMsgPublished(msg.MessageId, false);
-                                    else
-                                        // raise PUBLISH message received event 
-                                        this.OnMqttMsgPublishReceived((MqttMsgPublish)msg);
-                                    break;
-
-                                // PUBACK message received
-                                case MqttMsgBase.MQTT_MSG_PUBACK_TYPE:
-
-                                    // raise published message event
-                                    // (PUBACK received for QoS Level 1)
-                                    this.OnMqttMsgPublished(msg.MessageId, true);
-                                    break;
-
-                                // PUBREL message received
-                                case MqttMsgBase.MQTT_MSG_PUBREL_TYPE:
-
-                                    // raise message received event 
-                                    // (PUBREL received for QoS Level 2)
-                                    this.OnMqttMsgPublishReceived((MqttMsgPublish)msg);
-                                    break;
-
-                                // PUBCOMP message received
-                                case MqttMsgBase.MQTT_MSG_PUBCOMP_TYPE:
-
-                                    // raise published message event
-                                    // (PUBCOMP received for QoS Level 2)
-                                    this.OnMqttMsgPublished(msg.MessageId, true);
-                                    break;
-
-                                // UNSUBSCRIBE message received from client
-                                case MqttMsgBase.MQTT_MSG_UNSUBSCRIBE_TYPE:
-
-#if BROKER
-                                    MqttMsgUnsubscribe unsubscribe = (MqttMsgUnsubscribe)msg;
-                                    // raise unsubscribe topic event (UNSUBSCRIBE message received)
-                                    this.OnMqttMsgUnsubscribeReceived(unsubscribe.MessageId, unsubscribe.Topics);
-                                    break;
-#else
-                                    throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-
-                                // UNSUBACK message received
-                                case MqttMsgBase.MQTT_MSG_UNSUBACK_TYPE:
-
-                                    // raise unsubscribed topic event
-                                    this.OnMqttMsgUnsubscribed(msg.MessageId);
-                                    break;
-
-                                // DISCONNECT message received from client
-                                case MqttMsgDisconnect.MQTT_MSG_DISCONNECT_TYPE:
-
-#if BROKER
-                                    // raise disconnected client event (DISCONNECT message received)
-                                    this.OnMqttMsgDisconnected();
-                                    break;
-#else
-                                    throw new MqttClientException(MqttClientErrorCode.WrongBrokerMessage);
-#endif
-                            }
-                        }
-                    }
-                    
-                    // all events for received messages dispatched, check if there is closing connection
-                    if ((this.eventQueue.Count == 0) && this.isConnectionClosing)
-                    {
-                        // client must close connection
-                        this.Close();
-
-                        // client raw disconnection
-                        this.OnConnectionClosed();
-                    }
-                }
-            }
-        }
-
-        /// <summary>
-        /// Process inflight messages queue
-        /// </summary>
-        private void ProcessInflightThread()
-        {
-            MqttMsgContext msgContext = null;
-            MqttMsgBase msgInflight = null;
-            MqttMsgBase msgReceived = null;
-            InternalEvent internalEvent = null;
-            bool acknowledge = false;
-            int timeout = Timeout.Infinite;
-            int delta;
-            bool msgReceivedProcessed = false;
-
-            try
-            {
-                while (this.isRunning)
-                {
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                    // wait on message queueud to inflight
-                    this.inflightWaitHandle.WaitOne(timeout, false);
-#else
-                    // wait on message queueud to inflight
-                    this.inflightWaitHandle.WaitOne(timeout);
-#endif
-
-                    // it could be unblocked because Close() method is joining
-                    if (this.isRunning)
-                    {
-                        lock (this.inflightQueue)
-                        {
-                            // message received and peeked from internal queue is processed
-                            // NOTE : it has the corresponding message in inflight queue based on messageId
-                            //        (ex. a PUBREC for a PUBLISH, a SUBACK for a SUBSCRIBE, ...)
-                            //        if it's orphan we need to remove from internal queue
-                            msgReceivedProcessed = false;
-                            acknowledge = false;
-                            msgReceived = null;
-
-                            // set timeout tu MaxValue instead of Infinte (-1) to perform
-                            // compare with calcultad current msgTimeout
-                            timeout = Int32.MaxValue;
-
-                            // a message inflight could be re-enqueued but we have to
-                            // analyze it only just one time for cycle
-                            int count = this.inflightQueue.Count;
-                            // process all inflight queued messages
-                            while (count > 0)
-                            {
-                                count--;
-                                acknowledge = false;
-                                msgReceived = null;
-
-                                // check to be sure that client isn't closing and all queues are now empty !
-                                if (!this.isRunning)
-                                    break;
-
-                                // dequeue message context from queue
-                                msgContext = (MqttMsgContext)this.inflightQueue.Dequeue();
-
-                                // get inflight message
-                                msgInflight = (MqttMsgBase)msgContext.Message;
-
-                                switch (msgContext.State)
-                                {
-                                    case MqttMsgState.QueuedQos0:
-
-                                        // QoS 0, PUBLISH message to send to broker, no state change, no acknowledge
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            this.Send(msgInflight);
-                                        }
-                                        // QoS 0, no need acknowledge
-                                        else if (msgContext.Flow == MqttMsgFlow.ToAcknowledge)
-                                        {
-                                            internalEvent = new MsgInternalEvent(msgInflight);
-                                            // notify published message from broker (no need acknowledged)
-                                            this.OnInternalEvent(internalEvent);
-                                        }
-
-#if TRACE
-                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "processed {0}", msgInflight);
-#endif
-                                        break;
-
-                                    case MqttMsgState.QueuedQos1:
-                                    // [v3.1.1] SUBSCRIBE and UNSIBSCRIBE aren't "officially" QOS = 1
-                                    case MqttMsgState.SendSubscribe:
-                                    case MqttMsgState.SendUnsubscribe:
-
-                                        // QoS 1, PUBLISH or SUBSCRIBE/UNSUBSCRIBE message to send to broker, state change to wait PUBACK or SUBACK/UNSUBACK
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            msgContext.Timestamp = Environment.TickCount;
-                                            msgContext.Attempt++;
-
-                                            if (msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE)
-                                            {
-                                                // PUBLISH message to send, wait for PUBACK
-                                                msgContext.State = MqttMsgState.WaitForPuback;
-                                                // retry ? set dup flag [v3.1.1] only for PUBLISH message
-                                                if (msgContext.Attempt > 1)
-                                                    msgInflight.DupFlag = true;
-                                            }
-                                            else if (msgInflight.Type == MqttMsgBase.MQTT_MSG_SUBSCRIBE_TYPE)
-                                                // SUBSCRIBE message to send, wait for SUBACK
-                                                msgContext.State = MqttMsgState.WaitForSuback;
-                                            else if (msgInflight.Type == MqttMsgBase.MQTT_MSG_UNSUBSCRIBE_TYPE)
-                                                // UNSUBSCRIBE message to send, wait for UNSUBACK
-                                                msgContext.State = MqttMsgState.WaitForUnsuback;
-
-                                            this.Send(msgInflight);
-
-                                            // update timeout : minimum between delay (based on current message sent) or current timeout
-                                            timeout = (this.settings.DelayOnRetry < timeout) ? this.settings.DelayOnRetry : timeout;
-
-                                            // re-enqueue message (I have to re-analyze for receiving PUBACK, SUBACK or UNSUBACK)
-                                            this.inflightQueue.Enqueue(msgContext);
-                                        }
-                                        // QoS 1, PUBLISH message received from broker to acknowledge, send PUBACK
-                                        else if (msgContext.Flow == MqttMsgFlow.ToAcknowledge)
-                                        {
-                                            MqttMsgPuback puback = new MqttMsgPuback();
-                                            puback.MessageId = msgInflight.MessageId;
-
-                                            this.Send(puback);
-
-                                            internalEvent = new MsgInternalEvent(msgInflight);
-                                            // notify published message from broker and acknowledged
-                                            this.OnInternalEvent(internalEvent);
-
-#if TRACE
-                                            MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "processed {0}", msgInflight);
-#endif
-                                        }
-                                        break;
-
-                                    case MqttMsgState.QueuedQos2:
-
-                                        // QoS 2, PUBLISH message to send to broker, state change to wait PUBREC
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            msgContext.Timestamp = Environment.TickCount;
-                                            msgContext.Attempt++;
-                                            msgContext.State = MqttMsgState.WaitForPubrec;
-                                            // retry ? set dup flag
-                                            if (msgContext.Attempt > 1)
-                                                msgInflight.DupFlag = true;
-
-                                            this.Send(msgInflight);
-
-                                            // update timeout : minimum between delay (based on current message sent) or current timeout
-                                            timeout = (this.settings.DelayOnRetry < timeout) ? this.settings.DelayOnRetry : timeout;
-
-                                            // re-enqueue message (I have to re-analyze for receiving PUBREC)
-                                            this.inflightQueue.Enqueue(msgContext);
-                                        }
-                                        // QoS 2, PUBLISH message received from broker to acknowledge, send PUBREC, state change to wait PUBREL
-                                        else if (msgContext.Flow == MqttMsgFlow.ToAcknowledge)
-                                        {
-                                            MqttMsgPubrec pubrec = new MqttMsgPubrec();
-                                            pubrec.MessageId = msgInflight.MessageId;
-
-                                            msgContext.State = MqttMsgState.WaitForPubrel;
-
-                                            this.Send(pubrec);
-
-                                            // re-enqueue message (I have to re-analyze for receiving PUBREL)
-                                            this.inflightQueue.Enqueue(msgContext);
-                                        }
-                                        break;
-
-                                    case MqttMsgState.WaitForPuback:
-                                    case MqttMsgState.WaitForSuback:
-                                    case MqttMsgState.WaitForUnsuback:
-
-                                        // QoS 1, waiting for PUBACK of a PUBLISH message sent or
-                                        //        waiting for SUBACK of a SUBSCRIBE message sent or
-                                        //        waiting for UNSUBACK of a UNSUBSCRIBE message sent or
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            acknowledge = false;
-                                            lock (this.internalQueue)
-                                            {
-                                                if (this.internalQueue.Count > 0)
-                                                    msgReceived = (MqttMsgBase)this.internalQueue.Peek();
-                                            }
-
-                                            // it is a PUBACK message or a SUBACK/UNSUBACK message
-                                            if (msgReceived != null)
-                                            {
-                                                // PUBACK message or SUBACK/UNSUBACK message for the current message
-                                                if (((msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBACK_TYPE) && (msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) && (msgReceived.MessageId == msgInflight.MessageId)) ||
-                                                    ((msgReceived.Type == MqttMsgBase.MQTT_MSG_SUBACK_TYPE) && (msgInflight.Type == MqttMsgBase.MQTT_MSG_SUBSCRIBE_TYPE) && (msgReceived.MessageId == msgInflight.MessageId)) ||
-                                                    ((msgReceived.Type == MqttMsgBase.MQTT_MSG_UNSUBACK_TYPE) && (msgInflight.Type == MqttMsgBase.MQTT_MSG_UNSUBSCRIBE_TYPE) && (msgReceived.MessageId == msgInflight.MessageId)))
-                                                {
-                                                    lock (this.internalQueue)
-                                                    {
-                                                        // received message processed
-                                                        this.internalQueue.Dequeue();
-                                                        acknowledge = true;
-                                                        msgReceivedProcessed = true;
-#if TRACE
-                                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0}", msgReceived);
-#endif
-                                                    }
-
-                                                    // if PUBACK received, confirm published with flag
-                                                    if (msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBACK_TYPE)
-                                                        internalEvent = new MsgPublishedInternalEvent(msgReceived, true);
-                                                    else
-                                                        internalEvent = new MsgInternalEvent(msgReceived);
-
-                                                    // notify received acknowledge from broker of a published message or subscribe/unsubscribe message
-                                                    this.OnInternalEvent(internalEvent);
-
-                                                    // PUBACK received for PUBLISH message with QoS Level 1, remove from session state
-                                                    if ((msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                                                        (this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                        (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                        (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                    {
-                                                        this.session.InflightMessages.Remove(msgContext.Key);
-                                                    }
-
-#if TRACE
-                                                    MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "processed {0}", msgInflight);
-#endif
-                                                }
-                                            }
-
-                                            // current message not acknowledged, no PUBACK or SUBACK/UNSUBACK or not equal messageid 
-                                            if (!acknowledge)
-                                            {
-                                                delta = Environment.TickCount - msgContext.Timestamp;
-                                                // check timeout for receiving PUBACK since PUBLISH was sent or
-                                                // for receiving SUBACK since SUBSCRIBE was sent or
-                                                // for receiving UNSUBACK since UNSUBSCRIBE was sent
-                                                if (delta >= this.settings.DelayOnRetry)
-                                                {
-                                                    // max retry not reached, resend
-                                                    if (msgContext.Attempt < this.settings.AttemptsOnRetry)
-                                                    {
-                                                        msgContext.State = MqttMsgState.QueuedQos1;
-
-                                                        // re-enqueue message
-                                                        this.inflightQueue.Enqueue(msgContext);
-
-                                                        // update timeout (0 -> reanalyze queue immediately)
-                                                        timeout = 0;
-                                                    }
-                                                    else
-                                                    {
-                                                        // if PUBACK for a PUBLISH message not received after retries, raise event for not published
-                                                        if (msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE)
-                                                        {
-                                                            // PUBACK not received in time, PUBLISH retries failed, need to remove from session inflight messages too
-                                                            if ((this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                                (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                                (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                            {
-                                                                this.session.InflightMessages.Remove(msgContext.Key);
-                                                            }
-
-                                                            internalEvent = new MsgPublishedInternalEvent(msgInflight, false);
-
-                                                            // notify not received acknowledge from broker and message not published
-                                                            this.OnInternalEvent(internalEvent);
-                                                        }
-                                                        // NOTE : not raise events for SUBACK or UNSUBACK not received
-                                                        //        for the user no event raised means subscribe/unsubscribe failed
-                                                    }
-                                                }
-                                                else
-                                                {
-                                                    // re-enqueue message (I have to re-analyze for receiving PUBACK, SUBACK or UNSUBACK)
-                                                    this.inflightQueue.Enqueue(msgContext);
-
-                                                    // update timeout
-                                                    int msgTimeout = (this.settings.DelayOnRetry - delta);
-                                                    timeout = (msgTimeout < timeout) ? msgTimeout : timeout;
-                                                }
-                                            }
-                                        }
-                                        break;
-
-                                    case MqttMsgState.WaitForPubrec:
-
-                                        // QoS 2, waiting for PUBREC of a PUBLISH message sent
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            acknowledge = false;
-                                            lock (this.internalQueue)
-                                            {
-                                                if (this.internalQueue.Count > 0)
-                                                    msgReceived = (MqttMsgBase)this.internalQueue.Peek();
-                                            }
-
-                                            // it is a PUBREC message
-                                            if ((msgReceived != null) && (msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBREC_TYPE))
-                                            {
-                                                // PUBREC message for the current PUBLISH message, send PUBREL, wait for PUBCOMP
-                                                if (msgReceived.MessageId == msgInflight.MessageId)
-                                                {
-                                                    lock (this.internalQueue)
-                                                    {
-                                                        // received message processed
-                                                        this.internalQueue.Dequeue();
-                                                        acknowledge = true;
-                                                        msgReceivedProcessed = true;
-#if TRACE
-                                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0}", msgReceived);
-#endif
-                                                    }
-
-                                                    MqttMsgPubrel pubrel = new MqttMsgPubrel();
-                                                    pubrel.MessageId = msgInflight.MessageId;
-
-                                                    msgContext.State = MqttMsgState.WaitForPubcomp;
-                                                    msgContext.Timestamp = Environment.TickCount;
-                                                    msgContext.Attempt = 1;
-
-                                                    this.Send(pubrel);
-
-                                                    // update timeout : minimum between delay (based on current message sent) or current timeout
-                                                    timeout = (this.settings.DelayOnRetry < timeout) ? this.settings.DelayOnRetry : timeout;
-
-                                                    // re-enqueue message
-                                                    this.inflightQueue.Enqueue(msgContext);
-                                                }
-                                            }
-
-                                            // current message not acknowledged
-                                            if (!acknowledge)
-                                            {
-                                                delta = Environment.TickCount - msgContext.Timestamp;
-                                                // check timeout for receiving PUBREC since PUBLISH was sent
-                                                if (delta >= this.settings.DelayOnRetry)
-                                                {
-                                                    // max retry not reached, resend
-                                                    if (msgContext.Attempt < this.settings.AttemptsOnRetry)
-                                                    {
-                                                        msgContext.State = MqttMsgState.QueuedQos2;
-
-                                                        // re-enqueue message
-                                                        this.inflightQueue.Enqueue(msgContext);
-
-                                                        // update timeout (0 -> reanalyze queue immediately)
-                                                        timeout = 0;
-                                                    }
-                                                    else
-                                                    {
-                                                        // PUBREC not received in time, PUBLISH retries failed, need to remove from session inflight messages too
-                                                        if ((this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                            (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                            (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                        {
-                                                            this.session.InflightMessages.Remove(msgContext.Key);
-                                                        }
-
-                                                        // if PUBREC for a PUBLISH message not received after retries, raise event for not published
-                                                        internalEvent = new MsgPublishedInternalEvent(msgInflight, false);
-                                                        // notify not received acknowledge from broker and message not published
-                                                        this.OnInternalEvent(internalEvent);
-                                                    }
-                                                }
-                                                else
-                                                {
-                                                    // re-enqueue message
-                                                    this.inflightQueue.Enqueue(msgContext);
-
-                                                    // update timeout
-                                                    int msgTimeout = (this.settings.DelayOnRetry - delta);
-                                                    timeout = (msgTimeout < timeout) ? msgTimeout : timeout;
-                                                }
-                                            }
-                                        }
-                                        break;
-
-                                    case MqttMsgState.WaitForPubrel:
-
-                                        // QoS 2, waiting for PUBREL of a PUBREC message sent
-                                        if (msgContext.Flow == MqttMsgFlow.ToAcknowledge)
-                                        {
-                                            lock (this.internalQueue)
-                                            {
-                                                if (this.internalQueue.Count > 0)
-                                                    msgReceived = (MqttMsgBase)this.internalQueue.Peek();
-                                            }
-
-                                            // it is a PUBREL message
-                                            if ((msgReceived != null) && (msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBREL_TYPE))
-                                            {
-                                                // PUBREL message for the current message, send PUBCOMP
-                                                if (msgReceived.MessageId == msgInflight.MessageId)
-                                                {
-                                                    lock (this.internalQueue)
-                                                    {
-                                                        // received message processed
-                                                        this.internalQueue.Dequeue();
-                                                        msgReceivedProcessed = true;
-#if TRACE
-                                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0}", msgReceived);
-#endif
-                                                    }
-
-                                                    MqttMsgPubcomp pubcomp = new MqttMsgPubcomp();
-                                                    pubcomp.MessageId = msgInflight.MessageId;
-
-                                                    this.Send(pubcomp);
-
-                                                    internalEvent = new MsgInternalEvent(msgInflight);
-                                                    // notify published message from broker and acknowledged
-                                                    this.OnInternalEvent(internalEvent);
-
-                                                    // PUBREL received (and PUBCOMP sent) for PUBLISH message with QoS Level 2, remove from session state
-                                                    if ((msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                                                        (this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                        (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                        (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                    {
-                                                        this.session.InflightMessages.Remove(msgContext.Key);
-                                                    }
-
-#if TRACE
-                                                    MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "processed {0}", msgInflight);
-#endif
-                                                }
-                                                else
-                                                {
-                                                    // re-enqueue message
-                                                    this.inflightQueue.Enqueue(msgContext);
-                                                }
-                                            }
-                                            else
-                                            {
-                                                // re-enqueue message
-                                                this.inflightQueue.Enqueue(msgContext);
-                                            }
-                                        }
-                                        break;
-
-                                    case MqttMsgState.WaitForPubcomp:
-
-                                        // QoS 2, waiting for PUBCOMP of a PUBREL message sent
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            acknowledge = false;
-                                            lock (this.internalQueue)
-                                            {
-                                                if (this.internalQueue.Count > 0)
-                                                    msgReceived = (MqttMsgBase)this.internalQueue.Peek();
-                                            }
-
-                                            // it is a PUBCOMP message
-                                            if ((msgReceived != null) && (msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBCOMP_TYPE))
-                                            {
-                                                // PUBCOMP message for the current message
-                                                if (msgReceived.MessageId == msgInflight.MessageId)
-                                                {
-                                                    lock (this.internalQueue)
-                                                    {
-                                                        // received message processed
-                                                        this.internalQueue.Dequeue();
-                                                        acknowledge = true;
-                                                        msgReceivedProcessed = true;
-#if TRACE
-                                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0}", msgReceived);
-#endif
-                                                    }
-
-                                                    internalEvent = new MsgPublishedInternalEvent(msgReceived, true);
-                                                    // notify received acknowledge from broker of a published message
-                                                    this.OnInternalEvent(internalEvent);
-
-                                                    // PUBCOMP received for PUBLISH message with QoS Level 2, remove from session state
-                                                    if ((msgInflight.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                                                        (this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                        (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                        (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                    {
-                                                        this.session.InflightMessages.Remove(msgContext.Key);
-                                                    }
-
-#if TRACE
-                                                    MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "processed {0}", msgInflight);
-#endif
-                                                }
-                                            }
-                                            // it is a PUBREC message
-                                            else if ((msgReceived != null) && (msgReceived.Type == MqttMsgBase.MQTT_MSG_PUBREC_TYPE))
-                                            {
-                                                // another PUBREC message for the current message due to a retransmitted PUBLISH
-                                                // I'm in waiting for PUBCOMP, so I can discard this PUBREC
-                                                if (msgReceived.MessageId == msgInflight.MessageId)
-                                                {
-                                                    lock (this.internalQueue)
-                                                    {
-                                                        // received message processed
-                                                        this.internalQueue.Dequeue();
-                                                        acknowledge = true;
-                                                        msgReceivedProcessed = true;
-#if TRACE
-                                                        MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0}", msgReceived);
-#endif
-
-                                                        // re-enqueue message
-                                                        this.inflightQueue.Enqueue(msgContext);
-                                                    }
-                                                }
-                                            }
-
-                                            // current message not acknowledged
-                                            if (!acknowledge)
-                                            {
-                                                delta = Environment.TickCount - msgContext.Timestamp; 
-                                                // check timeout for receiving PUBCOMP since PUBREL was sent
-                                                if (delta >= this.settings.DelayOnRetry)
-                                                {
-                                                    // max retry not reached, resend
-                                                    if (msgContext.Attempt < this.settings.AttemptsOnRetry)
-                                                    {
-                                                        msgContext.State = MqttMsgState.SendPubrel;
-
-                                                        // re-enqueue message
-                                                        this.inflightQueue.Enqueue(msgContext);
-
-                                                        // update timeout (0 -> reanalyze queue immediately)
-                                                        timeout = 0;
-                                                    }
-                                                    else
-                                                    {
-                                                        // PUBCOMP not received, PUBREL retries failed, need to remove from session inflight messages too
-                                                        if ((this.session != null) &&
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-                                                            (this.session.InflightMessages.Contains(msgContext.Key)))
-#else
-                                                            (this.session.InflightMessages.ContainsKey(msgContext.Key)))
-#endif
-                                                        {
-                                                            this.session.InflightMessages.Remove(msgContext.Key);
-                                                        }
-
-                                                        // if PUBCOMP for a PUBLISH message not received after retries, raise event for not published
-                                                        internalEvent = new MsgPublishedInternalEvent(msgInflight, false);
-                                                        // notify not received acknowledge from broker and message not published
-                                                        this.OnInternalEvent(internalEvent);
-                                                    }
-                                                }
-                                                else
-                                                {
-                                                    // re-enqueue message
-                                                    this.inflightQueue.Enqueue(msgContext);
-
-                                                    // update timeout
-                                                    int msgTimeout = (this.settings.DelayOnRetry - delta);
-                                                    timeout = (msgTimeout < timeout) ? msgTimeout : timeout;
-                                                }
-                                            }
-                                        }
-                                        break;
-
-                                    case MqttMsgState.SendPubrec:
-
-                                        // TODO : impossible ? --> QueuedQos2 ToAcknowledge
-                                        break;
-
-                                    case MqttMsgState.SendPubrel:
-
-                                        // QoS 2, PUBREL message to send to broker, state change to wait PUBCOMP
-                                        if (msgContext.Flow == MqttMsgFlow.ToPublish)
-                                        {
-                                            MqttMsgPubrel pubrel = new MqttMsgPubrel();
-                                            pubrel.MessageId = msgInflight.MessageId;
-
-                                            msgContext.State = MqttMsgState.WaitForPubcomp;
-                                            msgContext.Timestamp = Environment.TickCount;
-                                            msgContext.Attempt++;
-                                            // retry ? set dup flag [v3.1.1] no needed
-                                            if (this.ProtocolVersion == MqttProtocolVersion.Version_3_1)
-                                            {
-                                                if (msgContext.Attempt > 1)
-                                                    pubrel.DupFlag = true;
-                                            }
-                                            
-                                            this.Send(pubrel);
-
-                                            // update timeout : minimum between delay (based on current message sent) or current timeout
-                                            timeout = (this.settings.DelayOnRetry < timeout) ? this.settings.DelayOnRetry : timeout;
-
-                                            // re-enqueue message
-                                            this.inflightQueue.Enqueue(msgContext);
-                                        }
-                                        break;
-
-                                    case MqttMsgState.SendPubcomp:
-                                        // TODO : impossible ?
-                                        break;
-                                    case MqttMsgState.SendPuback:
-                                        // TODO : impossible ? --> QueuedQos1 ToAcknowledge
-                                        break;
-                                    default:
-                                        break;
-                                }
-                            }
-
-                            // if calculated timeout is MaxValue, it means that must be Infinite (-1)
-                            if (timeout == Int32.MaxValue)
-                                timeout = Timeout.Infinite;
-
-                            // if message received is orphan, no corresponding message in inflight queue
-                            // based on messageId, we need to remove from the queue
-                            if ((msgReceived != null) && !msgReceivedProcessed)
-                            {
-                                this.internalQueue.Dequeue();
-#if TRACE
-                                MqttUtility.Trace.WriteLine(TraceLevel.Queuing, "dequeued {0} orphan", msgReceived);
-#endif
-                            }
-                        }
-                    }
-                }
-            }
-            catch (MqttCommunicationException e)
-            {
-                // possible exception on Send, I need to re-enqueue not sent message
-                if (msgContext != null)
-                    // re-enqueue message
-                    this.inflightQueue.Enqueue(msgContext);
-
-#if TRACE
-                MqttUtility.Trace.WriteLine(TraceLevel.Error, "Exception occurred: {0}", e.ToString());
-#endif
-
-                // raise disconnection client event
-                this.OnConnectionClosing();
-            }
-        }
-
-        /// <summary>
-        /// Restore session
-        /// </summary>
-        private void RestoreSession()
-        {
-            // if not clean session
-            if (!this.CleanSession)
-            {
-                // there is a previous session
-                if (this.session != null)
-                {
-                    lock (this.inflightQueue)
-                    {
-                        foreach (MqttMsgContext msgContext in this.session.InflightMessages.Values)
-                        {
-                            this.inflightQueue.Enqueue(msgContext);
-
-                            // if it is a PUBLISH message to publish
-                            if ((msgContext.Message.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                                (msgContext.Flow == MqttMsgFlow.ToPublish))
-                            {
-                                // it's QoS 1 and we haven't received PUBACK
-                                if ((msgContext.Message.QosLevel == MqttMsgBase.QOS_LEVEL_AT_LEAST_ONCE) &&
-                                    (msgContext.State == MqttMsgState.WaitForPuback))
-                                {
-                                    // we haven't received PUBACK, we need to resend PUBLISH message
-                                    msgContext.State = MqttMsgState.QueuedQos1;
-                                }
-                                // it's QoS 2
-                                else if (msgContext.Message.QosLevel == MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE)
-                                {
-                                    // we haven't received PUBREC, we need to resend PUBLISH message
-                                    if (msgContext.State == MqttMsgState.WaitForPubrec)
-                                    {
-                                        msgContext.State = MqttMsgState.QueuedQos2;
-                                    }
-                                    // we haven't received PUBCOMP, we need to resend PUBREL for it
-                                    else if (msgContext.State == MqttMsgState.WaitForPubcomp)
-                                    {
-                                        msgContext.State = MqttMsgState.SendPubrel;
-                                    }
-                                }
-                            }
-                        }
-                    }
-
-                    // unlock process inflight queue
-                    this.inflightWaitHandle.Set();
-                }
-                else
-                {
-                    // create new session
-                    this.session = new MqttClientSession(this.ClientId);
-                }
-            }
-            // clean any previous session
-            else
-            {
-                if (this.session != null)
-                    this.session.Clear();
-            }
-        }
-
-#if BROKER
-
-        /// <summary>
-        /// Load a given session
-        /// </summary>
-        /// <param name="session">MQTT Client session to load</param>
-        public void LoadSession(MqttClientSession session)
-        {
-            // if not clean session
-            if (!this.CleanSession)
-            {
-                // set the session ...
-                this.session = session;
-                // ... and restore it
-                this.RestoreSession();
-            }
-        }
-#endif
-
-        /// <summary>
-        /// Generate the next message identifier
-        /// </summary>
-        /// <returns>Message identifier</returns>
-        private ushort GetMessageId()
-        {
-            // if 0 or max UInt16, it becomes 1 (first valid messageId)
-            this.messageIdCounter = ((this.messageIdCounter % UInt16.MaxValue) != 0) ? (ushort)(this.messageIdCounter + 1) : (ushort)1;
-            return this.messageIdCounter;
-        }
-
-        /// <summary>
-        /// Finder class for PUBLISH message inside a queue
-        /// </summary>
-        internal class MqttMsgContextFinder
-        {
-            // PUBLISH message id
-            internal ushort MessageId { get; set; }
-            // message flow into inflight queue
-            internal MqttMsgFlow Flow { get; set; }
-
-            /// <summary>
-            /// Constructor
-            /// </summary>
-            /// <param name="messageId">Message Id</param>
-            /// <param name="flow">Message flow inside inflight queue</param>
-            internal MqttMsgContextFinder(ushort messageId, MqttMsgFlow flow)
-            {
-                this.MessageId = messageId;
-                this.Flow = flow;
-            }
-
-            internal bool Find(object item)
-            {
-                MqttMsgContext msgCtx = (MqttMsgContext)item;
-                return ((msgCtx.Message.Type == MqttMsgBase.MQTT_MSG_PUBLISH_TYPE) &&
-                        (msgCtx.Message.MessageId == this.MessageId) &&
-                        msgCtx.Flow == this.Flow);
-
-            }
-        }
-    }
-
-    /// <summary>
-    /// MQTT protocol version
-    /// </summary>
-    public enum MqttProtocolVersion
-    {
-        Version_3_1 = MqttMsgConnect.PROTOCOL_VERSION_V3_1,
-        Version_3_1_1 = MqttMsgConnect.PROTOCOL_VERSION_V3_1_1
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/MqttClient.cs.meta

@@ -1,12 +0,0 @@
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-guid: 5e2e6e599dc93d04da0717a067733bb3
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/MqttSecurity.cs

@@ -1,30 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// Supported SSL/TLS protocol versions
-    /// </summary>
-    public enum MqttSslProtocols
-    {
-        None,
-        SSLv3,
-        TLSv1_0,
-        TLSv1_1,
-        TLSv1_2
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/MqttSecurity.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: d39e537279957784da1f759aac6e1d13
-timeCreated: 1532595909
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/MqttSettings.cs

@@ -1,104 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// Settings class for the MQTT broker
-    /// </summary>
-    public class MqttSettings
-    {
-        // default port for MQTT protocol
-        public const int MQTT_BROKER_DEFAULT_PORT = 1883;
-        public const int MQTT_BROKER_DEFAULT_SSL_PORT = 8883;
-        // default timeout on receiving from client
-        public const int MQTT_DEFAULT_TIMEOUT = 30000;
-        // max publish, subscribe and unsubscribe retry for QoS Level 1 or 2
-        public const int MQTT_ATTEMPTS_RETRY = 3;
-        // delay for retry publish, subscribe and unsubscribe for QoS Level 1 or 2
-        public const int MQTT_DELAY_RETRY = 10000;
-        // broker need to receive the first message (CONNECT)
-        // within a reasonable amount of time after TCP/IP connection 
-        public const int MQTT_CONNECT_TIMEOUT = 30000;
-        // default inflight queue size
-        public const int MQTT_MAX_INFLIGHT_QUEUE_SIZE = int.MaxValue;
-
-        /// <summary>
-        /// Listening connection port
-        /// </summary>
-        public int Port { get; internal set; }
-
-        /// <summary>
-        /// Listening connection SSL port
-        /// </summary>
-        public int SslPort { get; internal set; }
-
-        /// <summary>
-        /// Timeout on client connection (before receiving CONNECT message)
-        /// </summary>
-        public int TimeoutOnConnection { get; internal set; }
-
-        /// <summary>
-        /// Timeout on receiving
-        /// </summary>
-        public int TimeoutOnReceiving { get; internal set; }
-
-        /// <summary>
-        /// Attempts on retry
-        /// </summary>
-        public int AttemptsOnRetry { get; internal set; }
-
-        /// <summary>
-        /// Delay on retry
-        /// </summary>
-        public int DelayOnRetry { get; internal set; }
-
-        /// <summary>
-        /// Inflight queue size
-        /// </summary>
-        public int InflightQueueSize { get; set; }
-        
-        /// <summary>
-        /// Singleton instance of settings
-        /// </summary>
-        public static MqttSettings Instance
-        {
-            get
-            {
-                if (instance == null)
-                    instance = new MqttSettings();
-                return instance;
-            }
-        }
-
-        // singleton instance
-        private static MqttSettings instance;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        private MqttSettings()
-        {
-            this.Port = MQTT_BROKER_DEFAULT_PORT;
-            this.SslPort = MQTT_BROKER_DEFAULT_SSL_PORT;
-            this.TimeoutOnReceiving = MQTT_DEFAULT_TIMEOUT;
-            this.AttemptsOnRetry = MQTT_ATTEMPTS_RETRY;
-            this.DelayOnRetry = MQTT_DELAY_RETRY;
-            this.TimeoutOnConnection = MQTT_CONNECT_TIMEOUT;
-            this.InflightQueueSize = MQTT_MAX_INFLIGHT_QUEUE_SIZE;
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/MqttSettings.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: dc704c0ea922f91428ca13939d73bac6
-timeCreated: 1532072517
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
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-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Net.meta

@@ -1,9 +0,0 @@
-fileFormatVersion: 2
-guid: 92da0271b9fd59e498b3e4ba07abf973
-folderAsset: yes
-timeCreated: 1532072517
-licenseType: Free
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Net/Fx.cs

@@ -1,41 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-   ----------------------------------------------------------------------------
-
-   Giovanni Paolo Vigano' - preprocessor directives for platform dependent compilation in Unity
-*/
-
-#if !(!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP)
-using System.Threading;
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// Support methods fos specific framework
-    /// </summary>
-    public class Fx
-    {
-        public static void StartThread(ThreadStart threadStart)
-        {
-            new Thread(threadStart).Start();
-        }
-
-        public static void SleepThread(int millisecondsTimeout)
-        {
-            Thread.Sleep(millisecondsTimeout);
-        }
-    }
-}
-#endif

Assets/Scripts/MQTT/M2Mqtt/Net/Fx.cs.meta

@@ -1,12 +0,0 @@
-fileFormatVersion: 2
-guid: c8f3fc556ec8a304f8f66d0ba400cc27
-timeCreated: 1532596916
-licenseType: Free
-MonoImporter:
-  serializedVersion: 2
-  defaultReferences: []
-  executionOrder: 0
-  icon: {instanceID: 0}
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 

Assets/Scripts/MQTT/M2Mqtt/Net/MqttNetworkChannel.cs

@@ -1,495 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-   ----------------------------------------------------------------------------
-
-   Giovanni Paolo Vigano' - preprocessor directives for platform dependent compilation in Unity
-*/
-#if !(!UNITY_EDITOR&&UNITY_WSA_10_0&&!ENABLE_IL2CPP)
-
-#if SSL
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-using Microsoft.SPOT.Net.Security;
-#else
-using System.Net.Security;
-using System.Security.Authentication;
-#endif
-#endif
-using System.Net.Sockets;
-using System.Net;
-using System.Security.Cryptography.X509Certificates;
-using System;
-using System.Net.Security;
-using System.Security.Authentication;
-
-namespace uPLibrary.Networking.M2Mqtt
-{
-    /// <summary>
-    /// Channel to communicate over the network
-    /// </summary>
-    public class MqttNetworkChannel : IMqttNetworkChannel
-    {
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-        private readonly RemoteCertificateValidationCallback userCertificateValidationCallback;
-        private readonly LocalCertificateSelectionCallback userCertificateSelectionCallback;
-#endif
-        // remote host information
-        private string remoteHostName;
-        private IPAddress remoteIpAddress;
-        private int remotePort;
-
-        // socket for communication
-        private Socket socket;
-        // using SSL
-        private bool secure;
-
-        // CA certificate (on client)
-        private X509Certificate caCert;
-        // Server certificate (on broker)
-        private X509Certificate serverCert;
-        // client certificate (on client)
-        private X509Certificate clientCert;
-
-        // SSL/TLS protocol version
-        private MqttSslProtocols sslProtocol;
-
-        /// <summary>
-        /// Remote host name
-        /// </summary>
-        public string RemoteHostName { get { return this.remoteHostName; } }
-
-        /// <summary>
-        /// Remote IP address
-        /// </summary>
-        public IPAddress RemoteIpAddress { get { return this.remoteIpAddress; } }
-
-        /// <summary>
-        /// Remote port
-        /// </summary>
-        public int RemotePort { get { return this.remotePort; } }
-
-#if SSL
-        // SSL stream
-        private SslStream sslStream;
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-        private NetworkStream netStream;
-#endif
-#endif
-
-        /// <summary>
-        /// Data available on the channel
-        /// </summary>
-        public bool DataAvailable
-        {
-            get
-            {
-#if SSL
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-                if (secure)
-                    return this.sslStream.DataAvailable;
-                else
-                    return (this.socket.Available > 0);
-#else
-                if (secure)
-                    return this.netStream.DataAvailable;
-                else
-                    return (this.socket.Available > 0);
-#endif
-#else
-                return (this.socket.Available > 0);
-#endif
-            }
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="socket">Socket opened with the client</param>
-        public MqttNetworkChannel(Socket socket)
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            : this(socket, false, null, MqttSslProtocols.None, null, null)
-#else
-            : this(socket, false, null, MqttSslProtocols.None)
-#endif
-        {
-
-        }
-        
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="socket">Socket opened with the client</param>
-        /// <param name="secure">Secure connection (SSL/TLS)</param>
-        /// <param name="serverCert">Server X509 certificate for secure connection</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-        /// <param name="userCertificateSelectionCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        /// <param name="userCertificateValidationCallback">A LocalCertificateSelectionCallback delegate responsible for selecting the certificate used for authentication</param>
-        public MqttNetworkChannel(Socket socket, bool secure, X509Certificate serverCert, MqttSslProtocols sslProtocol,
-            RemoteCertificateValidationCallback userCertificateValidationCallback,
-            LocalCertificateSelectionCallback userCertificateSelectionCallback)
-#else
-        public MqttNetworkChannel(Socket socket, bool secure, X509Certificate serverCert, MqttSslProtocols sslProtocol)
-#endif
-        {
-            this.socket = socket;
-            this.secure = secure;
-            this.serverCert = serverCert;
-            this.sslProtocol = sslProtocol;
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            this.userCertificateValidationCallback = userCertificateValidationCallback;
-            this.userCertificateSelectionCallback = userCertificateSelectionCallback;
-#endif
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="remoteHostName">Remote Host name</param>
-        /// <param name="remotePort">Remote port</param>
-        public MqttNetworkChannel(string remoteHostName, int remotePort)
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            : this(remoteHostName, remotePort, false, null, null, MqttSslProtocols.None, null, null)
-#else
-            : this(remoteHostName, remotePort, false, null, null, MqttSslProtocols.None)
-#endif
-        {
-        }
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="remoteHostName">Remote Host name</param>
-        /// <param name="remotePort">Remote port</param>
-        /// <param name="secure">Using SSL</param>
-        /// <param name="caCert">CA certificate</param>
-        /// <param name="clientCert">Client certificate</param>
-        /// <param name="sslProtocol">SSL/TLS protocol version</param>
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-        /// <param name="userCertificateSelectionCallback">A RemoteCertificateValidationCallback delegate responsible for validating the certificate supplied by the remote party</param>
-        /// <param name="userCertificateValidationCallback">A LocalCertificateSelectionCallback delegate responsible for selecting the certificate used for authentication</param>
-        public MqttNetworkChannel(string remoteHostName, int remotePort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol,
-            RemoteCertificateValidationCallback userCertificateValidationCallback,
-            LocalCertificateSelectionCallback userCertificateSelectionCallback)
-#else
-        public MqttNetworkChannel(string remoteHostName, int remotePort, bool secure, X509Certificate caCert, X509Certificate clientCert, MqttSslProtocols sslProtocol)
-#endif
-        {
-            IPAddress remoteIpAddress = null;
-            try
-            {
-                // check if remoteHostName is a valid IP address and get it
-                remoteIpAddress = IPAddress.Parse(remoteHostName);
-            }
-            catch
-            {
-            }
-
-            // in this case the parameter remoteHostName isn't a valid IP address
-            if (remoteIpAddress == null)
-            {
-                IPHostEntry hostEntry = Dns.GetHostEntry(remoteHostName);
-                if ((hostEntry != null) && (hostEntry.AddressList.Length > 0))
-                {
-                    // check for the first address not null
-                    // it seems that with .Net Micro Framework, the IPV6 addresses aren't supported and return "null"
-                    int i = 0;
-                    while (hostEntry.AddressList[i] == null) i++;
-                    remoteIpAddress = hostEntry.AddressList[i];
-                }
-                else
-                {
-                    throw new Exception("No address found for the remote host name");
-                }
-            }
-
-            this.remoteHostName = remoteHostName;
-            this.remoteIpAddress = remoteIpAddress;
-            this.remotePort = remotePort;
-            this.secure = secure;
-            this.caCert = caCert;
-            this.clientCert = clientCert;
-            this.sslProtocol = sslProtocol;
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3 || COMPACT_FRAMEWORK)
-            this.userCertificateValidationCallback = userCertificateValidationCallback;
-            this.userCertificateSelectionCallback = userCertificateSelectionCallback;
-#endif
-        }
-
-        /// <summary>
-        /// Connect to remote server
-        /// </summary>
-        public void Connect()
-        {
-            this.socket = new Socket(this.remoteIpAddress.GetAddressFamily(), SocketType.Stream, ProtocolType.Tcp);
-            // try connection to the broker
-            this.socket.Connect(new IPEndPoint(this.remoteIpAddress, this.remotePort));
-
-#if SSL
-            // secure channel requested
-            if (secure)
-            {
-                // create SSL stream
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-                this.sslStream = new SslStream(this.socket);
-#else
-                this.netStream = new NetworkStream(this.socket);
-                this.sslStream = new SslStream(this.netStream, false, this.userCertificateValidationCallback, this.userCertificateSelectionCallback);
-#endif
-
-                // server authentication (SSL/TLS handshake)
-#if (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-                this.sslStream.AuthenticateAsClient(this.remoteHostName,
-                    this.clientCert,
-                    new X509Certificate[] { this.caCert },
-                    SslVerification.CertificateRequired,
-                    MqttSslUtility.ToSslPlatformEnum(this.sslProtocol));
-#else
-                X509CertificateCollection clientCertificates = null;
-                // check if there is a client certificate to add to the collection, otherwise it's null (as empty)
-                if (this.clientCert != null)
-                    clientCertificates = new X509CertificateCollection(new X509Certificate[] { this.clientCert });
-
-                this.sslStream.AuthenticateAsClient(this.remoteHostName,
-                    clientCertificates,
-                    MqttSslUtility.ToSslPlatformEnum(this.sslProtocol),
-                    false);
-                
-#endif
-            }
-#endif
-        }
-
-        /// <summary>
-        /// Send data on the network channel
-        /// </summary>
-        /// <param name="buffer">Data buffer to send</param>
-        /// <returns>Number of byte sent</returns>
-        public int Send(byte[] buffer)
-        {
-#if SSL
-            if (this.secure)
-            {
-                this.sslStream.Write(buffer, 0, buffer.Length);
-                this.sslStream.Flush();
-                return buffer.Length;
-            }
-            else
-                return this.socket.Send(buffer, 0, buffer.Length, SocketFlags.None);
-#else
-            return this.socket.Send(buffer, 0, buffer.Length, SocketFlags.None);
-#endif
-        }
-
-        /// <summary>
-        /// Receive data from the network
-        /// </summary>
-        /// <param name="buffer">Data buffer for receiving data</param>
-        /// <returns>Number of bytes received</returns>
-        public int Receive(byte[] buffer)
-        {
-#if SSL
-            if (this.secure)
-            {
-                // read all data needed (until fill buffer)
-                int idx = 0, read = 0;
-                while (idx < buffer.Length)
-                {
-                    // fixed scenario with socket closed gracefully by peer/broker and
-                    // Read return 0. Avoid infinite loop.
-                    read = this.sslStream.Read(buffer, idx, buffer.Length - idx);
-                    if (read == 0)
-                        return 0;
-                    idx += read;
-                }
-                return buffer.Length;
-            }
-            else
-            {
-                // read all data needed (until fill buffer)
-                int idx = 0, read = 0;
-                while (idx < buffer.Length)
-                {
-                    // fixed scenario with socket closed gracefully by peer/broker and
-                    // Read return 0. Avoid infinite loop.
-                    read = this.socket.Receive(buffer, idx, buffer.Length - idx, SocketFlags.None);
-                    if (read == 0)
-                        return 0;
-                    idx += read;
-                }
-                return buffer.Length;
-            }
-#else
-            // read all data needed (until fill buffer)
-            int idx = 0, read = 0;
-            while (idx < buffer.Length)
-            {
-                // fixed scenario with socket closed gracefully by peer/broker and
-                // Read return 0. Avoid infinite loop.
-                read = this.socket.Receive(buffer, idx, buffer.Length - idx, SocketFlags.None);
-                if (read == 0)
-                    return 0;
-                idx += read;
-            }
-            return buffer.Length;
-#endif
-        }
-
-        /// <summary>
-        /// Receive data from the network channel with a specified timeout
-        /// </summary>
-        /// <param name="buffer">Data buffer for receiving data</param>
-        /// <param name="timeout">Timeout on receiving (in milliseconds)</param>
-        /// <returns>Number of bytes received</returns>
-        public int Receive(byte[] buffer, int timeout)
-        {
-            // check data availability (timeout is in microseconds)
-            if (this.socket.Poll(timeout * 1000, SelectMode.SelectRead))
-            {
-                return this.Receive(buffer);
-            }
-            else
-            {
-                return 0;
-            }
-        }
-
-        /// <summary>
-        /// Close the network channel
-        /// </summary>
-        public void Close()
-        {
-#if SSL
-            if (this.secure)
-            {
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-                this.netStream.Close();
-#endif
-                this.sslStream.Close();
-            }
-            this.socket.Close();
-#else
-            this.socket.Close();
-#endif
-        }
-
-        /// <summary>
-        /// Accept connection from a remote client
-        /// </summary>
-        public void Accept()
-        {
-#if SSL
-            // secure channel requested
-            if (secure)
-            {
-#if !(MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-
-                this.netStream = new NetworkStream(this.socket);
-                this.sslStream = new SslStream(this.netStream, false, this.userCertificateValidationCallback, this.userCertificateSelectionCallback);
-
-                this.sslStream.AuthenticateAsServer(this.serverCert, false, MqttSslUtility.ToSslPlatformEnum(this.sslProtocol), false);
-#endif
-            }
-
-            return;
-#else
-            return;
-#endif
-        }
-    }
-
-    /// <summary>
-    /// IPAddress Utility class
-    /// </summary>
-    public static class IPAddressUtility
-    {
-        /// <summary>
-        /// Return AddressFamily for the IP address
-        /// </summary>
-        /// <param name="ipAddress">IP address to check</param>
-        /// <returns>Address family</returns>
-        public static AddressFamily GetAddressFamily(this IPAddress ipAddress)
-        {
-#if (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3)
-            return ipAddress.AddressFamily;
-#else
-            return (ipAddress.ToString().IndexOf(':') != -1) ? 
-                AddressFamily.InterNetworkV6 : AddressFamily.InterNetwork;
-#endif
-        }
-    }
-
-    /// <summary>
-    /// MQTT SSL utility class
-    /// </summary>
-    public static class MqttSslUtility
-    {
-#if (UNITY_EDITOR || !NET_4_6)
-        public static SslProtocols ToSslPlatformEnum(MqttSslProtocols mqttSslProtocol)
-        {
-            switch (mqttSslProtocol)
-            {
-                case MqttSslProtocols.None:
-                    return SslProtocols.None;
-                case MqttSslProtocols.SSLv3:
-                    return SslProtocols.Ssl3;
-                case MqttSslProtocols.TLSv1_0:
-                    return SslProtocols.Tls;
-                case MqttSslProtocols.TLSv1_1:
-                case MqttSslProtocols.TLSv1_2:
-                default:
-                    throw new ArgumentException("SSL/TLS protocol version not supported");
-            }
-        }
-#elif (!MF_FRAMEWORK_VERSION_V4_2 && !MF_FRAMEWORK_VERSION_V4_3 && !COMPACT_FRAMEWORK)
-        public static SslProtocols ToSslPlatformEnum(MqttSslProtocols mqttSslProtocol)
-        {
-            switch (mqttSslProtocol)
-            {
-                case MqttSslProtocols.None:
-                    return SslProtocols.None;
-                case MqttSslProtocols.SSLv3:
-                    return SslProtocols.Ssl3;
-                case MqttSslProtocols.TLSv1_0:
-                    return SslProtocols.Tls;
-                case MqttSslProtocols.TLSv1_1:
-                    return SslProtocols.Tls11;
-                case MqttSslProtocols.TLSv1_2:
-                    return SslProtocols.Tls12;
-                default:
-                    throw new ArgumentException("SSL/TLS protocol version not supported");
-            }
-        }
-#elif (MF_FRAMEWORK_VERSION_V4_2 || MF_FRAMEWORK_VERSION_V4_3)
-        public static SslProtocols ToSslPlatformEnum(MqttSslProtocols mqttSslProtocol)
-        {
-            switch (mqttSslProtocol)
-            {
-                case MqttSslProtocols.None:
-                    return SslProtocols.None;
-                case MqttSslProtocols.SSLv3:
-                    return SslProtocols.SSLv3;
-                case MqttSslProtocols.TLSv1_0:
-                    return SslProtocols.TLSv1;
-                case MqttSslProtocols.TLSv1_1:
-                case MqttSslProtocols.TLSv1_2:
-                default:
-                    throw new ArgumentException("SSL/TLS protocol version not supported");
-            }
-        }
-#endif
-    }
-}
-
-#endif

Assets/Scripts/MQTT/M2Mqtt/Net/MqttNetworkChannel.cs.meta

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-licenseType: Free
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Assets/Scripts/MQTT/M2Mqtt/Properties/AssemblyInfo.cs

@@ -1,41 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-using System.Reflection;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
-
-// General Information about an assembly is controlled through the following 
-// set of attributes. Change these attribute values to modify the information
-// associated with an assembly.
-[assembly: AssemblyTitle("M2Mqtt")]
-[assembly: AssemblyDescription("MQTT Client Library for M2M communication")]
-[assembly: AssemblyConfiguration("")]
-[assembly: AssemblyCompany("Paolo Patierno")]
-[assembly: AssemblyProduct("M2Mqtt")]
-
-// Version information for an assembly consists of the following four values:
-//
-//      Major Version
-//      Minor Version 
-//      Build Number
-//      Revision
-//
-[assembly: AssemblyVersion("4.3.0.0")]
-// to avoid compilation error (AssemblyFileVersionAttribute doesn't exist) under .Net CF 3.5
-#if !WindowsCE
-[assembly: AssemblyFileVersion("4.3.0.0")]
-#endif

Assets/Scripts/MQTT/M2Mqtt/Properties/AssemblyInfo.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Session.meta

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Assets/Scripts/MQTT/M2Mqtt/Session/MqttBrokerSession.cs

@@ -1,65 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-#if BROKER
-using System.Collections;
-using System.Collections.Generic;
-using uPLibrary.Networking.M2Mqtt.Managers;
-using uPLibrary.Networking.M2Mqtt.Messages;
-
-namespace uPLibrary.Networking.M2Mqtt.Session
-{
-    /// <summary>
-    /// MQTT Broker Session
-    /// </summary>
-    public class MqttBrokerSession : MqttSession
-    {
-        /// <summary>
-        /// Client related to the subscription
-        /// </summary>
-        public MqttClient Client { get; set; }
-
-        /// <summary>
-        /// Subscriptions for the client session
-        /// </summary>
-        public List<MqttSubscription> Subscriptions;
-
-        /// <summary>
-        /// Outgoing messages to publish
-        /// </summary>
-        public Queue<MqttMsgPublish> OutgoingMessages;
-
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        public MqttBrokerSession()
-            : base()
-        {
-            this.Client = null;
-            this.Subscriptions = new List<MqttSubscription>();
-            this.OutgoingMessages = new Queue<MqttMsgPublish>();
-        }
-
-        public override void Clear()
-        {
-            base.Clear();
-            this.Client = null;
-            this.Subscriptions.Clear();
-            this.OutgoingMessages.Clear();
-        }
-    }
-}
-#endif

Assets/Scripts/MQTT/M2Mqtt/Session/MqttBrokerSession.cs.meta

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Assets/Scripts/MQTT/M2Mqtt/Session/MqttClientSession.cs

@@ -1,33 +0,0 @@
-/*
-Copyright (c) 2013, 2014 Paolo Patierno
-
-All rights reserved. This program and the accompanying materials
-are made available under the terms of the Eclipse Public License v1.0
-and Eclipse Distribution License v1.0 which accompany this distribution. 
-
-The Eclipse Public License is available at 
-   http://www.eclipse.org/legal/epl-v10.html
-and the Eclipse Distribution License is available at 
-   http://www.eclipse.org/org/documents/edl-v10.php.
-
-Contributors:
-   Paolo Patierno - initial API and implementation and/or initial documentation
-*/
-
-namespace uPLibrary.Networking.M2Mqtt.Session
-{
-    /// <summary>
-    /// MQTT Client Session
-    /// </summary>
-    public class MqttClientSession : MqttSession
-    {
-        /// <summary>
-        /// Constructor
-        /// </summary>
-        /// <param name="clientId">Client Id to create session</param>
-        public MqttClientSession(string clientId)
-            : base(clientId)
-        {
-        }
-    }
-}

Assets/Scripts/MQTT/M2Mqtt/Session/MqttClientSession.cs.meta

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