System.Reactive

Class to create an instance from a delegate-based implementation of the method.

The type of the elements in the sequence.

Creates an observable sequence object from the specified subscription function.

method implementation. is null.

Calls the subscription function that was supplied to the constructor.

Observer to send notifications to. Disposable object representing an observer's subscription to the observable sequence.

Class to create an instance from delegate-based implementations of the On* methods.

The type of the elements in the sequence.

Creates an observer from the specified , , and actions.

Observer's action implementation. Observer's action implementation. Observer's action implementation. or or is null.

Creates an observer from the specified action.

Observer's action implementation. is null.

Creates an observer from the specified and actions.

Observer's action implementation. Observer's action implementation. or is null.

Creates an observer from the specified and actions.

Observer's action implementation. Observer's action implementation. or is null.

Calls the action implementing .

Next element in the sequence.

Calls the action implementing .

The error that has occurred.

Calls the action implementing .

This class fuses logic from ObserverBase, AnonymousObserver, and SafeObserver into one class. When an observer needs to be safeguarded, an instance of this type can be created by SafeObserver.Create when it detects its input is an AnonymousObserver, which is commonly used by end users when using the Subscribe extension methods that accept delegates for the On* handlers. By doing the fusion, we make the call stack depth shorter which helps debugging and some performance.

Asynchronous lock.

Queues the action for execution. If the caller acquires the lock and becomes the owner, the queue is processed. If the lock is already owned, the action is queued and will get processed by the owner.

Action to queue for execution. is null.

Queues the action for execution. If the caller acquires the lock and becomes the owner, the queue is processed. If the lock is already owned, the action is queued and will get processed by the owner.

Action to queue for execution. The state to pass to the action when it gets invoked under the lock. is null. In case TState is a value type, this operation will involve boxing of . However, this is often an improvement over the allocation of a closure object and a delegate.

Clears the work items in the queue and drops further work being queued.

(Infrastructure) Concurrency abstraction layer.

Gets the current CAL. If no CAL has been set yet, it will be initialized to the default.

(Infrastructure) Concurrency abstraction layer interface.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Queues a method for execution at the specified relative time.

Method to execute. State to pass to the method. Time to execute the method on. Disposable object that can be used to stop the timer.

Queues a method for periodic execution based on the specified period.

Method to execute; should be safe for reentrancy. Period for running the method periodically. Disposable object that can be used to stop the timer.

Queues a method for execution.

Method to execute. State to pass to the method. Disposable object that can be used to cancel the queued method.

Blocking sleep operation.

Time to sleep.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Gets whether long-running scheduling is supported.

Starts a new long-running thread.

Method to execute. State to pass to the method.

Represents an object that schedules units of work on the current thread.

Singleton instance of this type exposed through this static property.

Gets the singleton instance of the current thread scheduler.

Gets a value that indicates whether the caller must call a Schedule method.

Schedules an action to be executed after dueTime.

The type of the state passed to the scheduled action. State passed to the action to be executed. Action to be executed. Relative time after which to execute the action. The disposable object used to cancel the scheduled action (best effort). is null.

Represents an object that schedules units of work on the platform's default scheduler.

Singleton instance of this type exposed through this static property.

Gets the singleton instance of the default scheduler.

Schedules an action to be executed.

Schedules an action to be executed after dueTime, using a System.Threading.Timer object.

Schedules a periodic piece of work, using a System.Threading.Timer object.

The type of the state passed to the scheduled action. Initial state passed to the action upon the first iteration. Period for running the work periodically. Action to be executed, potentially updating the state. The disposable object used to cancel the scheduled recurring action (best effort). is less than . is null.

Discovers scheduler services by interface type.

Scheduler service interface type to discover. Object implementing the requested service, if available; null otherwise.

Represents an object that schedules units of work on a designated thread.

Counter for diagnostic purposes, to name the threads.

Thread factory function.

Stopwatch for timing free of absolute time dependencies.

Thread used by the event loop to run work items on. No work should be run on any other thread. If ExitIfEmpty is set, the thread can quit and a new thread will be created when new work is scheduled.

Gate to protect data structures, including the work queue and the ready list.

Semaphore to count requests to re-evaluate the queue, from either Schedule requests or when a timer expires and moves on to the next item in the queue.

Queue holding work items. Protected by the gate.

Queue holding items that are ready to be run as soon as possible. Protected by the gate.

Work item that will be scheduled next. Used upon reevaluation of the queue to check whether the next item is still the same. If not, a new timer needs to be started (see below).

Disposable that always holds the timer to dispatch the first element in the queue.

Flag indicating whether the event loop should quit. When set, the event should be signaled as well to wake up the event loop thread, which will subsequently abandon all work.

Creates an object that schedules units of work on a designated thread.

Creates an object that schedules units of work on a designated thread, using the specified factory to control thread creation options.

Factory function for thread creation. is null.

Indicates whether the event loop thread is allowed to quit when no work is left. If new work is scheduled afterwards, a new event loop thread is created. This property is used by the NewThreadScheduler which uses an event loop for its recursive invocations.

Schedules an action to be executed after dueTime.

Schedules a periodic piece of work on the designated thread.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Ends the thread associated with this scheduler. All remaining work in the scheduler queue is abandoned.

Ensures there is an event loop thread running. Should be called under the gate.

Event loop scheduled on the designated event loop thread. The loop is suspended/resumed using the event which gets set by calls to Schedule, the next item timer, or calls to Dispose.

Base class for historical schedulers, which are virtual time schedulers that use for absolute time and for relative time.

Creates a new historical scheduler with the minimum value of as the initial clock value.

Creates a new historical scheduler with the specified initial clock value.

Initial clock value.

Creates a new historical scheduler with the specified initial clock value and absolute time comparer.

Initial value for the clock. Comparer to determine causality of events based on absolute time.

Adds a relative time value to an absolute time value.

Absolute time value. Relative time value to add. The resulting absolute time sum value.

Converts the absolute time value to a value.

Absolute time value to convert. The corresponding value.

Converts the value to a relative time value.

value to convert. The corresponding relative time value.

Provides a virtual time scheduler that uses for absolute time and for relative time.

Creates a new historical scheduler with the minimum value of as the initial clock value.

Creates a new historical scheduler with the specified initial clock value.

Initial value for the clock.

Creates a new historical scheduler with the specified initial clock value.

Initial value for the clock. Comparer to determine causality of events based on absolute time. is null.

Gets the next scheduled item to be executed.

The next scheduled item.

Schedules an action to be executed at .

The type of the state passed to the scheduled action. State passed to the action to be executed. Action to be executed. Absolute time at which to execute the action. The disposable object used to cancel the scheduled action (best effort). is null.

Represents an object that schedules units of work to run immediately on the current thread.

Singleton instance of this type exposed through this static property.

Gets the singleton instance of the immediate scheduler.

Schedules an action to be executed.

Schedules an action to be executed after dueTime.

Represents a work item that has been scheduled.

Absolute time representation type.

Gets the absolute time at which the item is due for invocation.

Invokes the work item.

Represents an object that schedules units of work.

Gets the scheduler's notion of current time.

Schedules an action to be executed.

The type of the state passed to the scheduled action. State passed to the action to be executed. Action to be executed. The disposable object used to cancel the scheduled action (best effort).

Schedules an action to be executed after dueTime.

Schedules an action to be executed at dueTime.

Scheduler with support for starting long-running tasks. This type of scheduler can be used to run loops more efficiently instead of using recursive scheduling.

Schedules a long-running piece of work.

The type of the state passed to the scheduled action. State passed to the action to be executed. Action to be executed. The disposable object used to cancel the scheduled action (best effort). Notes to implementers The returned disposable object should not prevent the work from starting, but only set the cancellation flag passed to the specified action.

Scheduler with support for running periodic tasks. This type of scheduler can be used to run timers more efficiently instead of using recursive scheduling.

Schedules a periodic piece of work.

Abstraction for a stopwatch to compute time relative to a starting point.

Gets the time elapsed since the stopwatch object was obtained.

Provider for objects.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Abstract base class for machine-local schedulers, using the local system clock for time-based operations.

Gets the scheduler's notion of current time.

Schedules an action to be executed.

Schedules an action to be executed after dueTime.

Schedules an action to be executed at dueTime.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request. Platform-specific scheduler implementations should reimplement to provide a more efficient implementation (if available).

Discovers scheduler services by interface type. The base class implementation returns requested services for each scheduler interface implemented by the derived class. For more control over service discovery, derived types can override this method.

Scheduler service interface type to discover. Object implementing the requested service, if available; null otherwise.

Gate to protect local scheduler queues.

Gate to protect queues and to synchronize scheduling decisions and system clock change management.

Long term work queue. Contains work that's due beyond SHORTTERM, computed at the time of enqueueing.

Disposable resource for the long term timer that will reevaluate and dispatch the first item in the long term queue. A serial disposable is used to make "dispose current and assign new" logic easier. The disposable itself is never disposed.

Item at the head of the long term queue for which the current long term timer is running. Used to detect changes in the queue and decide whether we should replace or can continue using the current timer (because no earlier long term work was added to the queue).

Short term work queue. Contains work that's due soon, computed at the time of enqueueing or upon reevaluation of the long term queue causing migration of work items. This queue is kept in order to be able to relocate short term items back to the long term queue in case a system clock change occurs.

Set of disposable handles to all of the current short term work Schedule calls, allowing those to be cancelled upon a system clock change.

Threshold where an item is considered to be short term work or gets moved from long term to short term.

Maximum error ratio for timer drift. We've seen machines with 10s drift on a daily basis, which is in the order 10E-4, so we allow for extra margin here. This value is used to calculate early arrival for the long term queue timer that will reevaluate work for the short term queue. Example: -------------------------------...---------------------*-----$ ^ ^ | | early due 0.999 1.0 We also make the gap between early and due at least LONGTOSHORT so we have enough time to transition work to short term and as a courtesy to the destination scheduler to manage its queues etc.

Minimum threshold for the long term timer to fire before the queue is reevaluated for short term work. This value is chosen to be less than SHORTTERM in order to ensure the timer fires and has work to transition to the short term queue.

Threshold used to determine when a short term timer has fired too early compared to the absolute due time. This provides a last chance protection against early completion of scheduled work, which can happen in case of time adjustment in the operating system (cf. GetSystemTimeAdjustment).

Longest interval supported by timers in the BCL.

Creates a new local scheduler.

Enqueues absolute time scheduled work in the timer queue or the short term work list.

State to pass to the action. Absolute time to run the work on. The timer queue is responsible to execute the work close to the specified time, also accounting for system clock changes. Action to run, potentially recursing into the scheduler. Disposable object to prevent the work from running.

Schedule work that's due in the short term. This leads to relative scheduling calls to the underlying scheduler for short TimeSpan values. If the system clock changes in the meantime, the short term work is attempted to be cancelled and reevaluated.

Work item to schedule in the short term. The caller is responsible to determine the work is indeed short term.

Callback to process the next short term work item.

Recursive scheduler supplied by the underlying scheduler. Disposable used to identify the work the timer was triggered for (see code for usage). Empty disposable. Recursive work cancellation is wired through the original WorkItem.

Schedule work that's due on the long term. This leads to the work being queued up for eventual transitioning to the short term work list.

Work item to schedule on the long term. The caller is responsible to determine the work is indeed long term.

Updates the long term timer which is responsible to transition work from the head of the long term queue to the short term work list.

Should be called under the scheduler lock.

Evaluates the long term queue, transitioning short term work to the short term list, and adjusting the new long term processing timer accordingly.

Callback invoked when a system clock change is observed in order to adjust and reevaluate the internal scheduling queues.

Currently not used. Currently not used.

Represents a work item in the absolute time scheduler.

This type is very similar to ScheduledItem, but we need a different Invoke signature to allow customization of the target scheduler (e.g. when called in a recursive scheduling context, see ExecuteNextShortTermWorkItem).

Represents a work item that closes over scheduler invocation state. Subtyping is used to have a common type for the scheduler queues.

Represents an object that schedules each unit of work on a separate thread.

Creates an object that schedules each unit of work on a separate thread.

Gets an instance of this scheduler that uses the default Thread constructor.

Creates an object that schedules each unit of work on a separate thread.

Factory function for thread creation. is null.

Schedules an action to be executed after dueTime.

Schedules a long-running task by creating a new thread. Cancellation happens through polling.

Schedules a periodic piece of work by creating a new thread that goes to sleep when work has been dispatched and wakes up again at the next periodic due time.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Abstract base class for scheduled work items.

Absolute time representation type.

Creates a new scheduled work item to run at the specified time.

Absolute time at which the work item has to be executed. Comparer used to compare work items based on their scheduled time. is null.

Gets the absolute time at which the item is due for invocation.

Invokes the work item.

Implement this method to perform the work item invocation, returning a disposable object for deep cancellation.

Disposable object used to cancel the work item and/or derived work items.

Compares the work item with another work item based on absolute time values.

Work item to compare the current work item to. Relative ordering between this and the specified work item. The inequality operators are overloaded to provide results consistent with the implementation. Equality operators implement traditional reference equality semantics.

Determines whether one specified object is due before a second specified object.

The first object to compare. The second object to compare. true if the value of left is earlier than the value of right; otherwise, false. This operator provides results consistent with the implementation.

Determines whether one specified object is due before or at the same of a second specified object.

The first object to compare. The second object to compare. true if the value of left is earlier than or simultaneous with the value of right; otherwise, false. This operator provides results consistent with the implementation.

Determines whether one specified object is due after a second specified object.

The first object to compare. The second object to compare. true if the value of left is later than the value of right; otherwise, false. This operator provides results consistent with the implementation.

Determines whether one specified object is due after or at the same time of a second specified object.

The first object to compare. The second object to compare. true if the value of left is later than or simultaneous with the value of right; otherwise, false. This operator provides results consistent with the implementation.

Determines whether two specified objects are equal.

The first object to compare. The second object to compare. true if both are equal; otherwise, false. This operator does not provide results consistent with the IComparable implementation. Instead, it implements reference equality.

Determines whether two specified objects are inequal.

The first object to compare. The second object to compare. true if both are inequal; otherwise, false. This operator does not provide results consistent with the IComparable implementation. Instead, it implements reference equality.

Determines whether a object is equal to the specified object.

The object to compare to the current object. true if the obj parameter is a object and is equal to the current object; otherwise, false.

Returns the hash code for the current object.

A 32-bit signed integer hash code.

Cancels the work item by disposing the resource returned by as soon as possible.

Gets whether the work item has received a cancellation request.

Represents a scheduled work item based on the materialization of an IScheduler.Schedule method call.

Absolute time representation type. Type of the state passed to the scheduled action.

Creates a materialized work item.

Recursive scheduler to invoke the scheduled action with. State to pass to the scheduled action. Scheduled action. Time at which to run the scheduled action. Comparer used to compare work items based on their scheduled time. or or is null.

Creates a materialized work item.

Recursive scheduler to invoke the scheduled action with. State to pass to the scheduled action. Scheduled action. Time at which to run the scheduled action. or is null.

Invokes the scheduled action with the supplied recursive scheduler and state.

Cancellation resource returned by the scheduled action.

Provides a set of static properties to access commonly used schedulers.

Yields execution of the current work item on the scheduler to another work item on the scheduler. The caller should await the result of calling Yield to schedule the remainder of the current work item (known as the continuation).

Scheduler to yield work on. Scheduler operation object to await in order to schedule the continuation. is null.

Scheduler to yield work on. Cancellation token to cancel the continuation to run. Scheduler operation object to await in order to schedule the continuation. is null.

Suspends execution of the current work item on the scheduler for the specified duration. The caller should await the result of calling Sleep to schedule the remainder of the current work item (known as the continuation) after the specified duration.

Scheduler to yield work on. Time when the continuation should run. Scheduler operation object to await in order to schedule the continuation. is null.

Scheduler to yield work on. Time when the continuation should run. Cancellation token to cancel the continuation to run. Scheduler operation object to await in order to schedule the continuation. is null.

Suspends execution of the current work item on the scheduler until the specified due time. The caller should await the result of calling Sleep to schedule the remainder of the current work item (known as the continuation) at the specified due time.

Scheduler to yield work on. Time when the continuation should run. Scheduler operation object to await in order to schedule the continuation. is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

The type of the state passed to the scheduled action. Scheduler to schedule work on. State to pass to the asynchronous method. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

Scheduler to schedule work on. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

The type of the state passed to the scheduled action. Scheduler to schedule work on. State to pass to the asynchronous method. Relative time after which to execute the action. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

Scheduler to schedule work on. Relative time after which to execute the action. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

The type of the state passed to the scheduled action. Scheduler to schedule work on. State to pass to the asynchronous method. Absolute time at which to execute the action. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

Scheduler to schedule work on. Absolute time at which to execute the action. Asynchronous method to run the work, using Yield and Sleep operations for cooperative scheduling and injection of cancellation points. Disposable object that allows to cancel outstanding work on cooperative cancellation points or through the cancellation token passed to the asynchronous method. or is null.

Schedules work using an asynchronous method, allowing for cooperative scheduling in an imperative coding style.

Gets the current time according to the local machine's system clock.

Normalizes the specified value to a positive value.

The value to normalize. The specified TimeSpan value if it is zero or positive; otherwise, .

Gets a scheduler that schedules work immediately on the current thread.

Gets a scheduler that schedules work as soon as possible on the current thread.

Gets a scheduler that schedules work on the platform's default scheduler.

Gets a scheduler that schedules work on the thread pool.

Gets a scheduler that schedules work on a new thread using default thread creation options.

Gets a scheduler that schedules work on Task Parallel Library (TPL) task pool using the default TaskScheduler.

Schedules an action to be executed recursively.

Scheduler to execute the recursive action on. Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed recursively.

The type of the state passed to the scheduled action. Scheduler to execute the recursive action on. State passed to the action to be executed. Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in recursive invocation state. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed recursively after a specified relative due time.

Scheduler to execute the recursive action on. Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action at the specified relative time. Relative time after which to execute the action for the first time. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed recursively after a specified relative due time.

The type of the state passed to the scheduled action. Scheduler to execute the recursive action on. State passed to the action to be executed. Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in the recursive due time and invocation state. Relative time after which to execute the action for the first time. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed recursively at a specified absolute due time.

Scheduler to execute the recursive action on. Action to execute recursively. The parameter passed to the action is used to trigger recursive scheduling of the action at the specified absolute time. Absolute time at which to execute the action for the first time. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed recursively at a specified absolute due time.

The type of the state passed to the scheduled action. Scheduler to execute the recursive action on. State passed to the action to be executed. Action to execute recursively. The last parameter passed to the action is used to trigger recursive scheduling of the action, passing in the recursive due time and invocation state. Absolute time at which to execute the action for the first time. The disposable object used to cancel the scheduled action (best effort). or is null.

Returns the implementation of the specified scheduler, or null if no such implementation is available.

Scheduler to get the implementation for. The scheduler's implementation if available; null otherwise. This helper method is made available for query operator authors in order to discover scheduler services by using the required IServiceProvider pattern, which allows for interception or redefinition of scheduler services. Consider using in case a stopwatch is required, but use of emulation stopwatch based on the scheduler's clock is acceptable. Use of this method is recommended for best-effort use of the stopwatch provider scheduler service, where the caller falls back to not using stopwatches if this facility wasn't found.

Returns the implementation of the specified scheduler, or null if no such implementation is available.

Scheduler to get the implementation for. The scheduler's implementation if available; null otherwise. This helper method is made available for query operator authors in order to discover scheduler services by using the required IServiceProvider pattern, which allows for interception or redefinition of scheduler services. Consider using the extension methods for in case periodic scheduling is required and emulation of periodic behavior using other scheduler services is desirable. Use of this method is recommended for best-effort use of the periodic scheduling service, where the caller falls back to not using periodic scheduling if this facility wasn't found.

Schedules a periodic piece of work by dynamically discovering the scheduler's capabilities. If the scheduler supports periodic scheduling, the request will be forwarded to the periodic scheduling implementation. If the scheduler provides stopwatch functionality, the periodic task will be emulated using recursive scheduling with a stopwatch to correct for time slippage. Otherwise, the periodic task will be emulated using recursive scheduling.

The type of the state passed to the scheduled action. The scheduler to run periodic work on. Initial state passed to the action upon the first iteration. Period for running the work periodically. Action to be executed, potentially updating the state. The disposable object used to cancel the scheduled recurring action (best effort). or is null. is less than .

The type of the state passed to the scheduled action. Scheduler to execute the action on. State passed to the action to be executed. Period for running the work periodically. Action to be executed. The disposable object used to cancel the scheduled recurring action (best effort). or is null. is less than .

Scheduler to execute the action on. Period for running the work periodically. Action to be executed. The disposable object used to cancel the scheduled recurring action (best effort). or is null. is less than .

Starts a new stopwatch object by dynamically discovering the scheduler's capabilities. If the scheduler provides stopwatch functionality, the request will be forwarded to the stopwatch provider implementation. Otherwise, the stopwatch will be emulated using the scheduler's notion of absolute time.

Scheduler to obtain a stopwatch for. New stopwatch object; started at the time of the request. is null. The resulting stopwatch object can have non-monotonic behavior.

Schedules an action to be executed.

Scheduler to execute the action on. Action to execute. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed.

Scheduler to execute the action on. A state object to be passed to . Action to execute. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed.

Scheduler to execute the action on. A state object to be passed to . Action to execute. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed after the specified relative due time.

Scheduler to execute the action on. Action to execute. Relative time after which to execute the action. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed after the specified relative due time.

Scheduler to execute the action on. Action to execute. A state object to be passed to . Relative time after which to execute the action. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed after the specified relative due time.

Schedules an action to be executed at the specified absolute due time.

Scheduler to execute the action on. Action to execute. Absolute time at which to execute the action. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed after the specified relative due time.

Schedules an action to be executed.

Scheduler to execute the action on. Action to execute. The disposable object used to cancel the scheduled action (best effort). or is null.

Returns a scheduler that represents the original scheduler, without any of its interface-based optimizations (e.g. long running scheduling).

Scheduler to disable all optimizations for. Proxy to the original scheduler but without any optimizations enabled. is null.

Returns a scheduler that represents the original scheduler, without the specified set of interface-based optimizations (e.g. long running scheduling).

Scheduler to disable the specified optimizations for. Types of the optimization interfaces that have to be disabled. Proxy to the original scheduler but without the specified optimizations enabled. or is null.

Returns a scheduler that wraps the original scheduler, adding exception handling for scheduled actions.

Type of the exception to check for. Scheduler to apply an exception filter for. Handler that's run if an exception is caught. The exception will be rethrown if the handler returns false. Wrapper around the original scheduler, enforcing exception handling. or is null.

Represents an awaitable scheduler operation. Awaiting the object causes the continuation to be posted back to the originating scheduler's work queue.

Controls whether the continuation is run on the originating synchronization context (false by default).

true to run the continuation on the captured synchronization context; false otherwise (default). Scheduler operation object with configured await behavior.

Gets an awaiter for the scheduler operation, used to post back the continuation.

Awaiter for the scheduler operation.

(Infrastructure) Scheduler operation awaiter type used by the code generated for C# await and Visual Basic Await expressions.

Indicates whether the scheduler operation has completed. Returns false unless cancellation was already requested.

Completes the scheduler operation, throwing an OperationCanceledException in case cancellation was requested.

Registers the continuation with the scheduler operation.

Continuation to be run on the originating scheduler.

Efficient scheduler queue that maintains scheduled items sorted by absolute time.

Absolute time representation type. This type is not thread safe; users should ensure proper synchronization.

Creates a new scheduler queue with a default initial capacity.

Creates a new scheduler queue with the specified initial capacity.

Initial capacity of the scheduler queue. is less than zero.

Gets the number of scheduled items in the scheduler queue.

Enqueues the specified work item to be scheduled.

Work item to be scheduled.

Removes the specified work item from the scheduler queue.

Work item to be removed from the scheduler queue. true if the item was found; false otherwise.

Dequeues the next work item from the scheduler queue.

Next work item in the scheduler queue (removed).

Peeks the next work item in the scheduler queue.

Next work item in the scheduler queue (not removed).

Provides basic synchronization and scheduling services for observable sequences.

Wraps the source sequence in order to run its subscription and unsubscription logic on the specified scheduler.

The type of the elements in the source sequence. Source sequence. Scheduler to perform subscription and unsubscription actions on. The source sequence whose subscriptions and unsubscriptions happen on the specified scheduler. or is null. Only the side-effects of subscribing to the source sequence and disposing subscriptions to the source sequence are run on the specified scheduler. In order to invoke observer callbacks on the specified scheduler, e.g. to offload callback processing to a dedicated thread, use .

Wraps the source sequence in order to run its subscription and unsubscription logic on the specified synchronization context.

The type of the elements in the source sequence. Source sequence. Synchronization context to perform subscription and unsubscription actions on. The source sequence whose subscriptions and unsubscriptions happen on the specified synchronization context. or is null. Only the side-effects of subscribing to the source sequence and disposing subscriptions to the source sequence are run on the specified synchronization context. In order to invoke observer callbacks on the specified synchronization context, e.g. to post callbacks to a UI thread represented by the synchronization context, use .

Wraps the source sequence in order to run its observer callbacks on the specified scheduler.

The type of the elements in the source sequence. Source sequence. Scheduler to notify observers on. The source sequence whose observations happen on the specified scheduler. or is null.

Wraps the source sequence in order to run its observer callbacks on the specified synchronization context.

Wraps the source sequence in order to ensure observer callbacks are properly serialized.

The type of the elements in the source sequence. Source sequence. The source sequence whose outgoing calls to observers are synchronized. is null.

Wraps the source sequence in order to ensure observer callbacks are synchronized using the specified gate object.

The type of the elements in the source sequence. Source sequence. Gate object to synchronize each observer call on. The source sequence whose outgoing calls to observers are synchronized on the given gate object. or is null.

The new ObserveOn operator run with an IScheduler in a lock-free manner.

The new ObserveOn operator run with an ISchedulerLongRunning in a mostly lock-free manner.

Represents an object that schedules units of work on a provided .

Creates an object that schedules units of work on the provided .

Synchronization context to schedule units of work on. is null.

Creates an object that schedules units of work on the provided .

Synchronization context to schedule units of work on. Configures whether scheduling always posts to the synchronization context, regardless whether the caller is on the same synchronization context. is null.

Schedules an action to be executed.

Schedules an action to be executed after dueTime.

Controls how completion or failure is handled when a or is wrapped as an and observed by an .

This type can be passed to overloads of the various method that adapt a TPL task as an . It deals with two concerns that arise whenever this is done: the scheduler through which notifications are delivered, and the handling of exceptions that occur after all observers have unsubscribed. If the property is non-null, it will be used to deliver all notifications to observers, whether those notifications occur immediately (because the task had already finished by the time it was observed) or they happen later. The property determines how to deal with tasks that fail after unsubscription (i.e., if an application calls on an observable wrapping, then calls Dispose on the result before that task completes, and the task subsequently enters a faulted state). Overloads that don't take a argument do not observe the in this case, with the result that the exception will then emerge from (which could terminate the process, depending on how the .NET application has been configured). This is consistent with how unobserved failures are normally handled, but it is not consistent with how Rx handles post-unsubcription failures in general. For example, if the projection callback for Select is in progress at the moment an observer unsubscribes, and that callback then goes on to throw an exception, that exception is simply swallowed. (One could argue that it should instead be sent to some application-level unhandled exception handler, but the current behaviour has been in place for well over a decade, so it's not something we can change.) So there is an argument that post-unsubscribe failures in -wrapped tasks should be ignored in exactly the same way: the default behaviour for post-unsubscribe failures in tasks is inconsistent with the handling of all other post-unsubscribe failures. This has also been the case for over a decade, so that inconsistency of defaults cannot be changed, but the property enables applications to ask for task-originated post-unsubscribe exceptions to be ignored in the same way as non-task-originated post-unsubscribe exceptions are. (Where possible, applications should avoid getting into situations where they throw exceptions in scenarios where nothing is able to observe them is. This setting is a last resort for situations in which this is truly unavoidable.)

Gets the optional scheduler to use when delivering notifications of the tasks's progress.

If this is null, the behaviour depends on whether the task has already completed. If the task has finished, the relevant completion or error notifications will be delivered via . If the task is still running (or not yet started) at the instant at which it is observed through Rx, no scheduler will be used if this property is null.

Gets a flag controlling handling of exceptions that occur after cancellation has been initiated by unsubscribing from the observable representing the task's progress.

If this is true, exceptions that occur after all observers have unsubscribed will be handled and silently ignored. If false, they will go unobserved, meaning they will eventually emerge through .

Value-type representation.

The public API surface area for is a class because using a value type would run into various issues. The type might appear in expression trees due to use of , which limits us to a fairly old subset of C#. It means we can't use the in modifier on parameters, which in turn prevents us from passing options by reference, increasing the overhead of each method call. Also, options types such as this aren't normally value types, so it would be a curious design choice. The downside of using a class is that it entails an extra allocation. Since the feature for which this is designed (the ability to swallow unhandled exceptions thrown by tasks after unsubscription) is one we don't expect most applications to use, that shouldn't be a problem. However, to accommodate this feature, common code paths shared by various overloads need the information that a holds. The easy approach would be to construct an instance of this type in overloads that don't take one as an argument. But that would be impose an additional allocation on code that doesn't want this new feature. So although we can't use a value type with in in public APIs dues to constraints on expression trees, we can do so internally. This type is a value-typed version of enabling us to share code paths without forcing new allocations on existing code.

Represents an object that schedules units of work on the Task Parallel Library (TPL) task pool.

Instance of this type using the default TaskScheduler to schedule work on the TPL task pool.

Creates an object that schedules units of work using the provided .

Task factory used to create tasks to run units of work. is null.

Gets an instance of this scheduler that uses the default .

Schedules an action to be executed.

Schedules an action to be executed after dueTime.

Schedules a long-running task by creating a new task using TaskCreationOptions.LongRunning. Cancellation happens through polling.

Gets a new stopwatch object.

New stopwatch object; started at the time of the request.

Schedules a periodic piece of work by running a platform-specific timer to create tasks periodically.

Represents an object that schedules units of work on the CLR thread pool.

Singleton instance of this type exposed through this static property.

Gets the singleton instance of the CLR thread pool scheduler.

Schedules an action to be executed.

Schedules an action to be executed after dueTime, using a System.Threading.Timer object.

Schedules a long-running task by creating a new thread. Cancellation happens through polling.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Schedules a periodic piece of work, using a System.Threading.Timer object.

Base class for virtual time schedulers.

Absolute time representation type. Relative time representation type.

Creates a new virtual time scheduler with the default value of TAbsolute as the initial clock value.

Creates a new virtual time scheduler with the specified initial clock value and absolute time comparer.

Initial value for the clock. Comparer to determine causality of events based on absolute time. is null.

Adds a relative time value to an absolute time value.

Absolute time value. Relative time value to add. The resulting absolute time sum value.

Converts the absolute time value to a DateTimeOffset value.

Absolute time value to convert. The corresponding DateTimeOffset value.

Converts the TimeSpan value to a relative time value.

TimeSpan value to convert. The corresponding relative time value.

Gets whether the scheduler is enabled to run work.

Gets the comparer used to compare absolute time values.

Schedules an action to be executed at dueTime.

The type of the state passed to the scheduled action. State passed to the action to be executed. Absolute time at which to execute the action. Action to be executed. The disposable object used to cancel the scheduled action (best effort).

Schedules an action to be executed at dueTime.

The type of the state passed to the scheduled action. State passed to the action to be executed. Relative time after which to execute the action. Action to be executed. The disposable object used to cancel the scheduled action (best effort).

Schedules an action to be executed.

Schedules an action to be executed after dueTime.

Schedules an action to be executed at dueTime.

Starts the virtual time scheduler.

Stops the virtual time scheduler.

Advances the scheduler's clock to the specified time, running all work till that point.

Absolute time to advance the scheduler's clock to. is in the past. The scheduler is already running. VirtualTimeScheduler doesn't support running nested work dispatch loops. To simulate time slippage while running work on the scheduler, use .

Advances the scheduler's clock by the specified relative time, running all work scheduled for that timespan.

Relative time to advance the scheduler's clock by. is negative. The scheduler is already running. VirtualTimeScheduler doesn't support running nested work dispatch loops. To simulate time slippage while running work on the scheduler, use .

Advances the scheduler's clock by the specified relative time.

Relative time to advance the scheduler's clock by. is negative.

Gets the scheduler's absolute time clock value.

Gets the scheduler's notion of current time.

Gets the next scheduled item to be executed.

The next scheduled item.

Discovers scheduler services by interface type. The base class implementation supports only the IStopwatchProvider service. To influence service discovery - such as adding support for other scheduler services - derived types can override this method.

Scheduler service interface type to discover. Object implementing the requested service, if available; null otherwise.

Starts a new stopwatch object.

New stopwatch object; started at the time of the request.

Base class for virtual time schedulers using a priority queue for scheduled items.

Absolute time representation type. Relative time representation type.

Creates a new virtual time scheduler with the default value of TAbsolute as the initial clock value.

Creates a new virtual time scheduler.

Initial value for the clock. Comparer to determine causality of events based on absolute time. is null.

Gets the next scheduled item to be executed.

The next scheduled item.

Schedules an action to be executed at dueTime.

Provides a set of extension methods for virtual time scheduling.

Schedules an action to be executed at .

Absolute time representation type. Relative time representation type. Scheduler to execute the action on. Relative time after which to execute the action. Action to be executed. The disposable object used to cancel the scheduled action (best effort). or is null.

Schedules an action to be executed at .

Absolute time representation type. Relative time representation type. Scheduler to execute the action on. Absolute time at which to execute the action. Action to be executed. The disposable object used to cancel the scheduled action (best effort). or is null.

The System.Reactive.Concurrency namespace contains interfaces and classes that provide the scheduler infrastructure used by Reactive Extensions to construct and process event streams. Schedulers are used to parameterize the concurrency introduced by query operators, provide means to virtualize time, to process historical data, and to write unit tests for functionality built using Reactive Extensions constructs.

Represents an object that schedules units of work on the message loop associated with a Windows Forms control.

Constructs a ControlScheduler that schedules units of work on the message loop associated with the specified Windows Forms control.

Windows Forms control to get the message loop from. is null. This scheduler type is typically used indirectly through the and method overloads that take a Windows Forms control.

Gets the control associated with the ControlScheduler.

Schedules an action to be executed on the message loop associated with the control.

Schedules an action to be executed after dueTime on the message loop associated with the control, using a Windows Forms Timer object.

Schedules a periodic piece of work on the message loop associated with the control, using a Windows Forms Timer object.

Represents an object that schedules units of work on a .

This scheduler type is typically used indirectly through the and methods that use the Dispatcher on the calling thread.

Gets the scheduler that schedules work on the current .

Gets the scheduler that schedules work on the for the current thread.

Constructs a that schedules units of work on the given .

to schedule work on. is null.

Constructs a that schedules units of work on the given at the given priority.

to schedule work on. Priority at which units of work are scheduled. is null.

Gets the associated with the .

Gets the priority at which work items will be dispatched.

Schedules an action to be executed on the dispatcher.

Schedules an action to be executed after on the dispatcher, using a object.

Schedules a periodic piece of work on the dispatcher, using a object.

Represents an Action-based disposable.

Constructs a new disposable with the given action used for disposal.

Disposal action which will be run upon calling Dispose.

Gets a value that indicates whether the object is disposed.

Calls the disposal action if and only if the current instance hasn't been disposed yet.

Represents a Action-based disposable that can hold onto some state.

Constructs a new disposable with the given action used for disposal.

The state to be passed to the disposal action. Disposal action which will be run upon calling Dispose.

Gets a value that indicates whether the object is disposed.

Calls the disposal action if and only if the current instance hasn't been disposed yet.

Represents a disposable resource that can be checked for disposal status.

Initializes a new instance of the class.

Gets a value that indicates whether the object is disposed.

Sets the status to disposed, which can be observer through the property.

Represents a disposable resource that has an associated that will be set to the cancellation requested state upon disposal.

Initializes a new instance of the class that uses an existing .

used for cancellation. is null.

Initializes a new instance of the class that uses a new .

Gets the used by this .

Cancels the underlying .

Gets a value that indicates whether the object is disposed.

Represents a group of disposable resources that are disposed together.

Initializes a new instance of the class with no disposables contained by it initially.

Initializes a new instance of the class with the specified number of disposables.

The number of disposables that the new CompositeDisposable can initially store. is less than zero.

Initializes a new instance of the class from a group of disposables.

Disposables that will be disposed together. is null. Any of the disposables in the collection is null.

Initializes a new instance of the class from a group of disposables.

Disposables that will be disposed together. is null. Any of the disposables in the collection is null.

Gets the number of disposables contained in the .

Adds a disposable to the or disposes the disposable if the is disposed.

Disposable to add. is null.

Removes and disposes the first occurrence of a disposable from the .

Disposable to remove. true if found; false otherwise. is null.

Disposes all disposables in the group and removes them from the group.

Removes and disposes all disposables from the , but does not dispose the .

Determines whether the contains a specific disposable.

Disposable to search for. true if the disposable was found; otherwise, false. is null.

Copies the disposables contained in the to an array, starting at a particular array index.

Array to copy the contained disposables to. Target index at which to copy the first disposable of the group. is null. is less than zero. -or - is larger than or equal to the array length.

Always returns false.

Returns an enumerator that iterates through the .

An enumerator to iterate over the disposables.

Returns an enumerator that iterates through the .

An enumerator to iterate over the disposables.

Gets a value that indicates whether the object is disposed.

An empty enumerator for the method to avoid allocation on disposed or empty composites.

An enumerator for an array of disposables.

Represents a disposable resource whose disposal invocation will be posted to the specified .

Initializes a new instance of the class that uses the specified on which to dispose the specified disposable resource.

Context to perform disposal on. Disposable whose Dispose operation to run on the given synchronization context. or is null.

Gets the provided .

Gets a value that indicates whether the object is disposed.

Disposes the underlying disposable on the provided .

Provides a set of static methods for creating objects.

Represents a disposable that does nothing on disposal.

Singleton default disposable.

Does nothing.

Gets the disposable that does nothing when disposed.

Creates a disposable object that invokes the specified action when disposed.

Action to run during the first call to . The action is guaranteed to be run at most once. The disposable object that runs the given action upon disposal. is null.

Creates a disposable object that invokes the specified action when disposed.

The state to be passed to the action. Action to run during the first call to . The action is guaranteed to be run at most once. The disposable object that runs the given action upon disposal. is null.

Gets the value stored in or a null if was already disposed.

Gets the value stored in or a no-op-Disposable if was already disposed.

Tries to assign to .

A value indicating the outcome of the operation.

Tries to assign to . If is not disposed and is assigned a different value, it will not be disposed.

true if was successfully assigned to . false has been disposed.

Tries to assign to . If is not disposed and is assigned a different value, it will be disposed.

true if was successfully assigned to . false has been disposed.

Disposes .

Disposable resource with disposal state tracking.

Gets a value that indicates whether the object is disposed.

Represents a disposable resource whose underlying disposable resource can be swapped for another disposable resource.

Initializes a new instance of the class with no current underlying disposable.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable. After disposal, the result of getting this property is undefined.

If the has already been disposed, assignment to this property causes immediate disposal of the given disposable object.

Disposes the underlying disposable as well as all future replacements.

Represents a disposable resource whose underlying disposable resource can be swapped for another disposable resource.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable. After disposal, the result of getting this property is undefined.

If the has already been disposed, assignment to this property causes immediate disposal of the given disposable object.

Disposes the underlying disposable as well as all future replacements.

Represents a disposable resource that only disposes its underlying disposable resource when all dependent disposable objects have been disposed.

Holds the number of active child disposables and the indicator bit (31) if the main _disposable has been marked for disposition.

Initializes a new instance of the class with the specified disposable.

Underlying disposable. is null.

Initializes a new instance of the class with the specified disposable.

Underlying disposable. Indicates whether subsequent calls to should throw when this instance is disposed. is null.

Gets a value that indicates whether the object is disposed.

Returns a dependent disposable that when disposed decreases the refcount on the underlying disposable.

A dependent disposable contributing to the reference count that manages the underlying disposable's lifetime. This instance has been disposed and is configured to throw in this case by .

Disposes the underlying disposable only when all dependent disposables have been disposed.

Represents a disposable resource whose disposal invocation will be scheduled on the specified .

Initializes a new instance of the class that uses an on which to dispose the disposable.

Scheduler where the disposable resource will be disposed on. Disposable resource to dispose on the given scheduler. or is null.

Gets the scheduler where the disposable resource will be disposed on.

Gets the underlying disposable. After disposal, the result is undefined.

Gets a value that indicates whether the object is disposed.

Disposes the wrapped disposable on the provided scheduler.

Represents a disposable resource whose underlying disposable resource can be replaced by another disposable resource, causing automatic disposal of the previous underlying disposable resource.

Initializes a new instance of the class.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable.

If the SerialDisposable has already been disposed, assignment to this property causes immediate disposal of the given disposable object. Assigning this property disposes the previous disposable object.

Disposes the underlying disposable as well as all future replacements.

Represents a disposable resource whose underlying disposable resource can be replaced by another disposable resource, causing automatic disposal of the previous underlying disposable resource.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable.

Disposes the underlying disposable as well as all future replacements.

Represents a disposable resource which only allows a single assignment of its underlying disposable resource. If an underlying disposable resource has already been set, future attempts to set the underlying disposable resource will throw an .

Initializes a new instance of the class.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable. After disposal, the result of getting this property is undefined.

Thrown if the has already been assigned to.

Disposes the underlying disposable.

Gets a value that indicates whether the object is disposed.

Gets or sets the underlying disposable. After disposal, the result of getting this property is undefined.

Thrown if the has already been assigned to.

Disposes the underlying disposable.

Represents a group of disposable resources that are disposed together.

Creates a new group containing two disposable resources that are disposed together.

The first disposable resource to add to the group. The second disposable resource to add to the group. Group of disposable resources that are disposed together.

Creates a new group of disposable resources that are disposed together.

Disposable resources to add to the group. Group of disposable resources that are disposed together.

Creates a group of disposable resources that are disposed together and without copying or checking for nulls inside the group.

The array of disposables that is trusted to not contain nulls and gives no need to defensively copy it. Group of disposable resources that are disposed together.

Creates a new group of disposable resources that are disposed together.

Disposable resources to add to the group. Group of disposable resources that are disposed together.

Disposes all disposables in the group.

Gets a value that indicates whether the object is disposed.

A stable composite that doesn't do defensive copy of the input disposable array nor checks it for null.

The System.Reactive.Disposables namespace contains interfaces and classes that provide a compositional set of constructs used to deal with resource and subscription management in Reactive Extensions. Those types are used extensively within the implementation of Reactive Extensions and are useful when writing custom query operators or schedulers.

Provides access to the platform enlightenments used by other Rx libraries to improve system performance and runtime efficiency. While Rx can run without platform enlightenments loaded, it's recommended to deploy the System.Reactive.PlatformServices assembly with your application and call during application startup to ensure enlightenments are properly loaded.

Ensures that the calling assembly has a reference to the System.Reactive.PlatformServices assembly with platform enlightenments. If no reference is made from the user code, it's possible for the build process to drop the deployment of System.Reactive.PlatformServices, preventing its runtime discovery.

true if the loaded enlightenment provider matches the provided defined in the current assembly; false otherwise. When a custom enlightenment provider is installed by the host, false will be returned.

(Infrastructure) Provider for platform-specific framework enlightenments.

(Infrastructure) Tries to gets the specified service.

Service type. Optional set of arguments. Service instance or null if not found.

(Infrastructure) Services to rethrow exceptions.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Rethrows the specified exception.

Exception to rethrow.

(Infrastructure) Provides access to the host's lifecycle management services.

Event that gets raised when the host suspends the application.

Event that gets raised when the host resumes the application.

Adds a reference to the host lifecycle manager, causing it to be sending notifications.

Removes a reference to the host lifecycle manager, causing it to stop sending notifications if the removed reference was the last one.

(Infrastructure) Provides notifications about the host's lifecycle events.

Event that gets raised when the host suspends.

Event that gets raised when the host resumes.

(Infrastructure) Event arguments for host suspension events.

(Infrastructure) Event arguments for host resumption events.

(Infrastructure) Interface for enlightenment providers.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

(Infrastructure) Tries to gets the specified service.

Service type. Optional set of arguments. Service instance or null if not found.

(Infrastructure) Provider for platform-specific framework enlightenments.

This type is used by the Rx infrastructure and not meant for public consumption or implementation.

(Infrastructure) Gets the current enlightenment provider. If none is loaded yet, accessing this property triggers provider resolution.

This member is used by the Rx infrastructure and not meant for public consumption or implementation.

(Infrastructure) Provides access to local system clock services.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Gets the local system clock time.

Adds a reference to the system clock monitor, causing it to be sending notifications.

Thrown when the system doesn't support sending clock change notifications.

Removes a reference to the system clock monitor, causing it to stop sending notifications if the removed reference was the last one.

(Infrastructure) Provides access to the local system clock.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Gets the current time.

(Infrastructure) Provides a mechanism to notify local schedulers about system clock changes.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Event that gets raised when a system clock change is detected.

(Infrastructure) Event arguments for system clock change notifications.

This type is used by the Rx infrastructure and not meant for public consumption or implementation. No guarantees are made about forward compatibility of the type's functionality and its usage.

Creates a new system clock notification object with unknown old and new times.

Creates a new system clock notification object with the specified old and new times.

Time before the system clock changed, or DateTimeOffset.MinValue if not known. Time after the system clock changed, or DateTimeOffset.MaxValue if not known.

Gets the time before the system clock changed, or DateTimeOffset.MinValue if not known.

Gets the time after the system clock changed, or DateTimeOffset.MaxValue if not known.

(Infrastructure) Provides access to the local system clock.

Gets the current time.

(Infrastructure) Monitors for system clock changes based on a periodic timer.

Use the Unix milliseconds for the current time so it can be atomically read/written without locking.

Creates a new monitor for system clock changes with the specified polling frequency.

Polling frequency for system clock changes.

Event that gets raised when a system clock change is detected.

The System.Reactive.PlatformServices namespace contains interfaces and classes used by the runtime infrastructure of Reactive Extensions. Those are not intended to be used directly from user code and are subject to change in future releases of the product.

Represents a .NET event invocation consisting of the weakly typed object that raised the event and the data that was generated by the event.

The type of the event data generated by the event.

Creates a new data representation instance of a .NET event invocation with the given sender and event data.

The sender object that raised the event. The event data that was generated by the event.

Represents a .NET event invocation consisting of the strongly typed object that raised the event and the data that was generated by the event.

The type of the sender that raised the event. The type of the event data generated by the event.

Creates a new data representation instance of a .NET event invocation with the given sender and event data.

The sender object that raised the event. The event data that was generated by the event.

Gets the sender object that raised the event.

Gets the event data that was generated by the event.

Deconstructs the event pattern value into a sender and event data.

The sender object that raised the event. The event data that was generated by the event.

Determines whether the current object represents the same event as a specified object.

An object to compare to the current object. true if both objects represent the same event; otherwise, false.

Determines whether the specified System.Object is equal to the current .

The System.Object to compare with the current . true if the specified System.Object is equal to the current ; otherwise, false.

Returns the hash code for the current instance.

A hash code for the current instance.

Determines whether two specified objects represent the same event.

The first to compare, or null. The second to compare, or null. true if both objects represent the same event; otherwise, false.

Determines whether two specified objects represent a different event.

The first to compare, or null. The second to compare, or null. true if both objects don't represent the same event; otherwise, false.

Base class for classes that expose an observable sequence as a well-known event pattern (sender, event arguments). Contains functionality to maintain a map of event handler delegates to observable sequence subscriptions. Subclasses should only add an event with custom add and remove methods calling into the base class's operations.

The type of the sender that raises the event. The type of the event data generated by the event.

Creates a new event pattern source.

Source sequence to expose as an event. Delegate used to invoke the event for each element of the sequence. or is null.

Adds the specified event handler, causing a subscription to the underlying source.

Event handler to add. The same delegate should be passed to the operation in order to remove the event handler. Invocation delegate to raise the event in the derived class. or is null.

Removes the specified event handler, causing a disposal of the corresponding subscription to the underlying source that was created during the operation.

Event handler to remove. This should be the same delegate as one that was passed to the operation. is null.

Marks the program elements that are experimental. This class cannot be inherited.

Represents a .NET event invocation consisting of the strongly typed object that raised the event and the data that was generated by the event.

The type of the sender that raised the event. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. The type of the event data generated by the event. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.

Gets the sender object that raised the event.

Gets the event data that was generated by the event.

Represents a data stream signaling its elements by means of an event.

The type of the event data generated by the event.

Event signaling the next element in the data stream.

Represents a data stream signaling its elements by means of an event.

The type of the event data generated by the event. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.

Event signaling the next element in the data stream.

Utility methods to handle lock-free combining of Exceptions as well as hosting a terminal-exception indicator for lock-free termination support.

The singleton instance of the exception indicating a terminal state, DO NOT LEAK or signal this via OnError!

Tries to atomically set the Exception on the given field if it is still null.

The target field to try to set atomically. The exception to set, not null (not verified). True if the operation succeeded, false if the target was not null.

Utility methods for dealing with serializing OnXXX signals for an IObserver where concurrent OnNext is still not allowed but concurrent OnError/OnCompleted may happen. This serialization case is generally lower overhead than a full SerializedObserver wrapper and doesn't need allocation.

Signals the given item to the observer in a serialized fashion allowing a concurrent OnError or OnCompleted emission to be delayed until the observer.OnNext returns. Do not call OnNext from multiple threads as it may lead to ignored items. Use a full SerializedObserver wrapper for merging multiple sequences.

The element type of the observer. The observer to signal events in a serialized fashion. The item to signal. Indicates there is an emission going on currently. The field containing an error or terminal indicator.

Signals the given exception to the observer. If there is a concurrent OnNext emission is happening, saves the exception into the given field otherwise to be picked up by . This method can be called concurrently with itself and the other methods of this helper class but only one terminal signal may actually win.

The element type of the observer. The observer to signal events in a serialized fashion. The exception to signal sooner or later. Indicates there is an emission going on currently. The field containing an error or terminal indicator.

Signals OnCompleted on the observer. If there is a concurrent OnNext emission happening, the error field will host a special terminal exception signal to be picked up by once it finishes with OnNext and signal the OnCompleted as well. This method can be called concurrently with itself and the other methods of this helper class but only one terminal signal may actually win.

The element type of the observer. The observer to signal events in a serialized fashion. Indicates there is an emission going on currently. The field containing an error or terminal indicator.

Base interface for observers that can dispose of a resource on a terminal notification or when disposed itself.

Interface with variance annotation; allows for better type checking when detecting capabilities in SubscribeSafe.

Type of the resulting sequence's elements.

Base class for implementation of query operators, providing performance benefits over the use of Observable.Create.

Type of the resulting sequence's elements.

Publicly visible Subscribe method.

Observer to send notifications on. The implementation of a producer must ensure the correct message grammar on the observer. IDisposable to cancel the subscription. This causes the underlying sink to be notified of unsubscription, causing it to prevent further messages from being sent to the observer.

Core implementation of the query operator, called upon a new subscription to the producer object.

Observer to send notifications on. The implementation of a producer must ensure the correct message grammar on the observer. Disposable representing all the resources and/or subscriptions the operator uses to process events. The observer passed in to this method is not protected using auto-detach behavior upon an OnError or OnCompleted call. The implementation must ensure proper resource disposal and enforce the message grammar.

Publicly visible Subscribe method.

Core implementation of the query operator, called upon a new subscription to the producer object.

The sink object.

Represents an observable sequence of elements that have a common key.

The type of the key shared by all elements in the group. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics. The type of the elements in the group. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.

Gets the common key.

Provides functionality to evaluate queries against a specific data source wherein the type of the data is known.

The type of the data in the data source. This type parameter is covariant. That is, you can use either the type you specified or any type that is more derived. For more information about covariance and contravariance, see Covariance and Contravariance in Generics.

Provides functionality to evaluate queries against a specific data source wherein the type of the data is not specified.

Gets the type of the element(s) that are returned when the expression tree associated with this instance of IQbservable is executed.

Gets the expression tree that is associated with the instance of IQbservable.

Gets the query provider that is associated with this data source.

Defines methods to create and execute queries that are described by an IQbservable object.

Constructs an object that can evaluate the query represented by a specified expression tree.

The type of the elements of the that is returned. Expression tree representing the query. IQbservable object that can evaluate the given query expression.

Internal interface describing the LINQ to Events query language.

Attribute applied to static classes providing expression tree forms of query methods, mapping those to the corresponding methods for local query execution on the specified target class type.

Creates a new mapping to the specified local execution query method implementation type.

Type with query methods for local execution.

Gets the type with the implementation of local query methods.

Provides a set of static methods for writing in-memory queries over observable sequences.

Applies an accumulator function over an observable sequence, returning the result of the aggregation as a single element in the result sequence. The specified seed value is used as the initial accumulator value. For aggregation behavior with incremental intermediate results, see .

The type of the elements in the source sequence. The type of the result of the aggregation. An observable sequence to aggregate over. The initial accumulator value. An accumulator function to be invoked on each element. An observable sequence containing a single element with the final accumulator value. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Applies an accumulator function over an observable sequence, returning the result of the aggregation as a single element in the result sequence. The specified seed value is used as the initial accumulator value, and the specified result selector function is used to select the result value.

The type of the elements in the source sequence. The type of the accumulator value. The type of the resulting value. An observable sequence to aggregate over. The initial accumulator value. An accumulator function to be invoked on each element. A function to transform the final accumulator value into the result value. An observable sequence containing a single element with the final accumulator value. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Applies an accumulator function over an observable sequence, returning the result of the aggregation as a single element in the result sequence. For aggregation behavior with incremental intermediate results, see .

The type of the elements in the source sequence and the result of the aggregation. An observable sequence to aggregate over. An accumulator function to be invoked on each element. An observable sequence containing a single element with the final accumulator value. or is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether all elements of an observable sequence satisfy a condition.

The type of the elements in the source sequence. An observable sequence whose elements to apply the predicate to. A function to test each element for a condition. An observable sequence containing a single element determining whether all elements in the source sequence pass the test in the specified predicate. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether an observable sequence contains any elements.

The type of the elements in the source sequence. An observable sequence to check for non-emptiness. An observable sequence containing a single element determining whether the source sequence contains any elements. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether any element of an observable sequence satisfies a condition.

The type of the elements in the source sequence. An observable sequence whose elements to apply the predicate to. A function to test each element for a condition. An observable sequence containing a single element determining whether any elements in the source sequence pass the test in the specified predicate. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values.

A sequence of values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values. is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values.

A sequence of values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values. is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values.

A sequence of values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values. is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values.

A sequence of values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values. is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values.

A sequence of nullable values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values.

A sequence of nullable values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values.

A sequence of nullable values to calculate the average of. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values. or is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values. or is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values. or is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of values that are obtained by invoking a transform function on each element of the input sequence.

Computes the average of an observable sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. or is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. or is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. or is null. (Asynchronous) The source sequence is empty. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. or is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the average of an observable sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values to calculate the average of. A transform function to apply to each element. An observable sequence containing a single element with the average of the sequence of values, or null if the source sequence is empty or contains only values that are null. or is null. (Asynchronous) The source sequence is empty. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether an observable sequence contains a specified element by using the default equality comparer.

The type of the elements in the source sequence. An observable sequence in which to locate a value. The value to locate in the source sequence. An observable sequence containing a single element determining whether the source sequence contains an element that has the specified value. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether an observable sequence contains a specified element by using a specified System.Collections.Generic.IEqualityComparer{T}.

The type of the elements in the source sequence. An observable sequence in which to locate a value. The value to locate in the source sequence. An equality comparer to compare elements. An observable sequence containing a single element determining whether the source sequence contains an element that has the specified value. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns an observable sequence containing an that represents the total number of elements in an observable sequence.

The type of the elements in the source sequence. An observable sequence that contains elements to be counted. An observable sequence containing a single element with the number of elements in the input sequence. is null. (Asynchronous) The number of elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns an observable sequence containing an that represents how many elements in the specified observable sequence satisfy a condition.

The type of the elements in the source sequence. An observable sequence that contains elements to be counted. A function to test each element for a condition. An observable sequence containing a single element with a number that represents how many elements in the input sequence satisfy the condition in the predicate function. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the element at a specified index in a sequence.

The type of the elements in the source sequence. Observable sequence to return the element from. The zero-based index of the element to retrieve. An observable sequence that produces the element at the specified position in the source sequence. is null. is less than zero. (Asynchronous) is greater than or equal to the number of elements in the source sequence.

Returns the element at a specified index in a sequence or a default value if the index is out of range.

The type of the elements in the source sequence. Observable sequence to return the element from. The zero-based index of the element to retrieve. An observable sequence that produces the element at the specified position in the source sequence, or a default value if the index is outside the bounds of the source sequence. is null. is less than zero.

Returns the first element of an observable sequence.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the first element in the observable sequence. is null. (Asynchronous) The source sequence is empty.

Returns the first element of an observable sequence that satisfies the condition in the predicate.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the first element in the observable sequence that satisfies the condition in the predicate. or is null. (Asynchronous) No element satisfies the condition in the predicate. -or- The source sequence is empty.

Returns the first element of an observable sequence, or a default value if no such element exists.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the first element in the observable sequence, or a default value if no such element exists. is null.

Returns the first element of an observable sequence that satisfies the condition in the predicate, or a default value if no such element exists.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the first element in the observable sequence that satisfies the condition in the predicate, or a default value if no such element exists. or is null.

Determines whether an observable sequence is empty.

The type of the elements in the source sequence. An observable sequence to check for emptiness. An observable sequence containing a single element determining whether the source sequence is empty. is null.

Returns the last element of an observable sequence.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the last element in the observable sequence. is null. (Asynchronous) The source sequence is empty.

Returns the last element of an observable sequence that satisfies the condition in the predicate.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the last element in the observable sequence that satisfies the condition in the predicate. or is null. (Asynchronous) No element satisfies the condition in the predicate. -or- The source sequence is empty.

Returns the last element of an observable sequence, or a default value if no such element exists.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the last element in the observable sequence, or a default value if no such element exists. is null.

Returns the last element of an observable sequence that satisfies the condition in the predicate, or a default value if no such element exists.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the last element in the observable sequence that satisfies the condition in the predicate, or a default value if no such element exists. or is null.

Returns an observable sequence containing an that represents the total number of elements in an observable sequence.

Returns an observable sequence containing an that represents how many elements in the specified observable sequence satisfy a condition.

Returns the maximum element in an observable sequence.

The type of the elements in the source sequence. An observable sequence to determine the maximum element of. An observable sequence containing a single element with the maximum element in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the maximum value in an observable sequence according to the specified comparer.

The type of the elements in the source sequence. An observable sequence to determine the maximum element of. Comparer used to compare elements. An observable sequence containing a single element with the maximum element in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the maximum value in an observable sequence of values.

A sequence of values to determine the maximum value of. An observable sequence containing a single element with the maximum value in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the maximum value in an observable sequence of values.

Returns the maximum value in an observable sequence of nullable values.

A sequence of nullable values to determine the maximum value of. An observable sequence containing a single element with the maximum value in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the maximum value in an observable sequence of nullable values.

Invokes a transform function on each element of a sequence and returns the maximum value.

The type of the elements in the source sequence. The type of the objects derived from the elements in the source sequence to determine the maximum of. An observable sequence to determine the minimum element of. A transform function to apply to each element. An observable sequence containing a single element with the value that corresponds to the maximum element in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the maximum value according to the specified comparer.

The type of the elements in the source sequence. The type of the objects derived from the elements in the source sequence to determine the maximum of. An observable sequence to determine the minimum element of. A transform function to apply to each element. Comparer used to compare elements. An observable sequence containing a single element with the value that corresponds to the maximum element in the source sequence. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the maximum value.

The type of the elements in the source sequence. A sequence of values to determine the maximum value of. A transform function to apply to each element. An observable sequence containing a single element with the value of type that corresponds to the maximum value in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the maximum value.

Invokes a transform function on each element of a sequence and returns the maximum nullable value.

Returns the elements in an observable sequence with the maximum key value.

The type of the elements in the source sequence. The type of the key computed for each element in the source sequence. An observable sequence to get the maximum elements for. Key selector function. An observable sequence containing a list of zero or more elements that have a maximum key value. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the elements in an observable sequence with the maximum key value according to the specified comparer.

The type of the elements in the source sequence. The type of the key computed for each element in the source sequence. An observable sequence to get the maximum elements for. Key selector function. Comparer used to compare key values. An observable sequence containing a list of zero or more elements that have a maximum key value. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the minimum element in an observable sequence.

The type of the elements in the source sequence. An observable sequence to determine the minimum element of. An observable sequence containing a single element with the minimum element in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the minimum element in an observable sequence according to the specified comparer.

The type of the elements in the source sequence. An observable sequence to determine the minimum element of. Comparer used to compare elements. An observable sequence containing a single element with the minimum element in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the minimum value in an observable sequence of values.

A sequence of values to determine the minimum value of. An observable sequence containing a single element with the minimum value in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the minimum value in an observable sequence of values.

Returns the minimum value in an observable sequence of nullable values.

A sequence of nullable values to determine the minimum value of. An observable sequence containing a single element with the minimum value in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the minimum value in an observable sequence of nullable values.

Invokes a transform function on each element of a sequence and returns the minimum value.

The type of the elements in the source sequence. The type of the objects derived from the elements in the source sequence to determine the minimum of. An observable sequence to determine the minimum element of. A transform function to apply to each element. An observable sequence containing a single element with the value that corresponds to the minimum element in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the minimum value according to the specified comparer.

The type of the elements in the source sequence. The type of the objects derived from the elements in the source sequence to determine the minimum of. An observable sequence to determine the minimum element of. A transform function to apply to each element. Comparer used to compare elements. An observable sequence containing a single element with the value that corresponds to the minimum element in the source sequence. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the minimum value.

The type of the elements in the source sequence. A sequence of values to determine the minimum value of. A transform function to apply to each element. An observable sequence containing a single element with the value of type that corresponds to the minimum value in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Invokes a transform function on each element of a sequence and returns the minimum value.

Invokes a transform function on each element of a sequence and returns the minimum nullable value.

Returns the elements in an observable sequence with the minimum key value.

The type of the elements in the source sequence. The type of the key computed for each element in the source sequence. An observable sequence to get the minimum elements for. Key selector function. An observable sequence containing a list of zero or more elements that have a minimum key value. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Returns the elements in an observable sequence with the minimum key value according to the specified comparer.

The type of the elements in the source sequence. The type of the key computed for each element in the source sequence. An observable sequence to get the minimum elements for. Key selector function. Comparer used to compare key values. An observable sequence containing a list of zero or more elements that have a minimum key value. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether two sequences are equal by comparing the elements pairwise.

The type of the elements in the source sequence. First observable sequence to compare. Second observable sequence to compare. An observable sequence that contains a single element which indicates whether both sequences are of equal length and their corresponding elements are equal according to the default equality comparer for their type. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether two sequences are equal by comparing the elements pairwise using a specified equality comparer.

The type of the elements in the source sequence. First observable sequence to compare. Second observable sequence to compare. Comparer used to compare elements of both sequences. An observable sequence that contains a single element which indicates whether both sequences are of equal length and their corresponding elements are equal according to the specified equality comparer. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Determines whether an observable and enumerable sequence are equal by comparing the elements pairwise.

Determines whether an observable and enumerable sequence are equal by comparing the elements pairwise using a specified equality comparer.

Returns the only element of an observable sequence, and reports an exception if there is not exactly one element in the observable sequence.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the single element in the observable sequence. is null. (Asynchronous) The source sequence contains more than one element. -or- The source sequence is empty.

Returns the only element of an observable sequence that satisfies the condition in the predicate, and reports an exception if there is not exactly one element in the observable sequence.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the single element in the observable sequence that satisfies the condition in the predicate. or is null. (Asynchronous) No element satisfies the condition in the predicate. -or- More than one element satisfies the condition in the predicate. -or- The source sequence is empty.

Returns the only element of an observable sequence, or a default value if the observable sequence is empty; this method reports an exception if there is more than one element in the observable sequence.

The type of the elements in the source sequence. Source observable sequence. Sequence containing the single element in the observable sequence, or a default value if no such element exists. is null. (Asynchronous) The source sequence contains more than one element.

Returns the only element of an observable sequence that matches the predicate, or a default value if no such element exists; this method reports an exception if there is more than one element in the observable sequence.

The type of the elements in the source sequence. Source observable sequence. A predicate function to evaluate for elements in the source sequence. Sequence containing the single element in the observable sequence that satisfies the condition in the predicate, or a default value if no such element exists. or is null. (Asynchronous) The sequence contains more than one element that satisfies the condition in the predicate.

Computes the sum of a sequence of values.

A sequence of values to calculate the sum of. An observable sequence containing a single element with the sum of the values in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of values.

A sequence of values to calculate the sum of. An observable sequence containing a single element with the sum of the values in the source sequence. is null. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of values.

Computes the sum of a sequence of nullable values.

A sequence of nullable values to calculate the sum of. An observable sequence containing a single element with the sum of the values in the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of nullable values.

A sequence of nullable values to calculate the sum of. An observable sequence containing a single element with the sum of the values in the source sequence. is null. (Asynchronous) The sum of the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of nullable values.

Computes the sum of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Computes the sum of a sequence of nullable values that are obtained by invoking a transform function on each element of the input sequence.

The type of the elements in the source sequence. A sequence of values that are used to calculate a sum. A transform function to apply to each element. An observable sequence containing a single element with the sum of the values in the source sequence. or is null. (Asynchronous) The sum of the projected values for the elements in the source sequence is larger than . The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates an array from an observable sequence.

The type of the elements in the source sequence. The source observable sequence to get an array of elements for. An observable sequence containing a single element with an array containing all the elements of the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a dictionary from an observable sequence according to a specified key selector function.

The type of the elements in the source sequence. The type of the dictionary key computed for each element in the source sequence. An observable sequence to create a dictionary for. A function to extract a key from each element. An observable sequence containing a single element with a dictionary mapping unique key values onto the corresponding source sequence's element. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a dictionary from an observable sequence according to a specified key selector function, and a comparer.

The type of the elements in the source sequence. The type of the dictionary key computed for each element in the source sequence. An observable sequence to create a dictionary for. A function to extract a key from each element. An equality comparer to compare keys. An observable sequence containing a single element with a dictionary mapping unique key values onto the corresponding source sequence's element. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a dictionary from an observable sequence according to a specified key selector function, and an element selector function.

The type of the elements in the source sequence. The type of the dictionary key computed for each element in the source sequence. The type of the dictionary value computed for each element in the source sequence. An observable sequence to create a dictionary for. A function to extract a key from each element. A transform function to produce a result element value from each element. An observable sequence containing a single element with a dictionary mapping unique key values onto the corresponding source sequence's element. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a dictionary from an observable sequence according to a specified key selector function, a comparer, and an element selector function.

The type of the elements in the source sequence. The type of the dictionary key computed for each element in the source sequence. The type of the dictionary value computed for each element in the source sequence. An observable sequence to create a dictionary for. A function to extract a key from each element. A transform function to produce a result element value from each element. An equality comparer to compare keys. An observable sequence containing a single element with a dictionary mapping unique key values onto the corresponding source sequence's element. or or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a list from an observable sequence.

The type of the elements in the source sequence. The source observable sequence to get a list of elements for. An observable sequence containing a single element with a list containing all the elements of the source sequence. is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a lookup from an observable sequence according to a specified key selector function.

The type of the elements in the source sequence. The type of the lookup key computed for each element in the source sequence. An observable sequence to create a lookup for. A function to extract a key from each element. An observable sequence containing a single element with a lookup mapping unique key values onto the corresponding source sequence's elements. or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a lookup from an observable sequence according to a specified key selector function, and a comparer.

The type of the elements in the source sequence. The type of the lookup key computed for each element in the source sequence. An observable sequence to create a lookup for. A function to extract a key from each element. An equality comparer to compare keys. An observable sequence containing a single element with a lookup mapping unique key values onto the corresponding source sequence's elements. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a lookup from an observable sequence according to a specified key selector function, and an element selector function.

The type of the elements in the source sequence. The type of the lookup key computed for each element in the source sequence. The type of the lookup value computed for each element in the source sequence. An observable sequence to create a lookup for. A function to extract a key from each element. A transform function to produce a result element value from each element. An observable sequence containing a single element with a lookup mapping unique key values onto the corresponding source sequence's elements. or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Creates a lookup from an observable sequence according to a specified key selector function, a comparer, and an element selector function.

The type of the elements in the source sequence. The type of the lookup key computed for each element in the source sequence. The type of the lookup value computed for each element in the source sequence. An observable sequence to create a lookup for. A function to extract a key from each element. A transform function to produce a result element value from each element. An equality comparer to compare keys. An observable sequence containing a single element with a lookup mapping unique key values onto the corresponding source sequence's elements. or or or is null. The return type of this operator differs from the corresponding operator on IEnumerable in order to retain asynchronous behavior.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The type of the thirteenth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The type of the thirteenth argument passed to the begin delegate. The type of the fourteenth argument passed to the begin delegate. The type of the result returned by the end delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The type of the thirteenth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Converts a Begin/End invoke function pair into an asynchronous function.

The type of the first argument passed to the begin delegate. The type of the second argument passed to the begin delegate. The type of the third argument passed to the begin delegate. The type of the fourth argument passed to the begin delegate. The type of the fifth argument passed to the begin delegate. The type of the sixth argument passed to the begin delegate. The type of the seventh argument passed to the begin delegate. The type of the eighth argument passed to the begin delegate. The type of the ninth argument passed to the begin delegate. The type of the tenth argument passed to the begin delegate. The type of the eleventh argument passed to the begin delegate. The type of the twelfth argument passed to the begin delegate. The type of the thirteenth argument passed to the begin delegate. The type of the fourteenth argument passed to the begin delegate. The delegate that begins the asynchronous operation. The delegate that ends the asynchronous operation. Function that can be used to start the asynchronous operation and retrieve the result (represented as a Unit value) as an observable sequence. or is null. Each invocation of the resulting function will cause the asynchronous operation to be started. Subscription to the resulting sequence has no observable side-effect, and each subscription will produce the asynchronous operation's result.

Invokes the specified function asynchronously, surfacing the result through an observable sequence.

The type of the result returned by the function. Function to run asynchronously. An observable sequence exposing the function's result value, or an exception. is null. The function is called immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the function's result.

Invokes the specified function asynchronously on the specified scheduler, surfacing the result through an observable sequence

The type of the result returned by the function. Function to run asynchronously. Scheduler to run the function on. An observable sequence exposing the function's result value, or an exception. or is null. The function is called immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the function's result.

Invokes the asynchronous function, surfacing the result through an observable sequence.

Invokes the asynchronous function, surfacing the result through an observable sequence. The CancellationToken is shared by all subscriptions on the resulting observable sequence. See the remarks section for more information.

The type of the result returned by the asynchronous function. Asynchronous function to run. An observable sequence exposing the function's result value, or an exception. is null. The function is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the function's result. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

The type of the result returned by the asynchronous function. Asynchronous function to run. Scheduler on which to notify observers. An observable sequence exposing the function's result value, or an exception. is null or is null. The function is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the function's result. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

The type of the result returned by the asynchronous function. Asynchronous function to run. Controls how the tasks's progress is observed. An observable sequence exposing the function's result value, or an exception. is null. The function is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the function's result. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

Invokes the action asynchronously, surfacing the result through an observable sequence.

Action to run asynchronously. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null. The action is called immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the action's outcome.

Invokes the action asynchronously on the specified scheduler, surfacing the result through an observable sequence.

Action to run asynchronously. Scheduler to run the action on. An observable sequence exposing a Unit value upon completion of the action, or an exception. or is null. The action is called immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the action's outcome.

Invokes the asynchronous action, surfacing the result through an observable sequence.

Invokes the asynchronous action, surfacing the result through an observable sequence. The CancellationToken is shared by all subscriptions on the resulting observable sequence. See the remarks section for more information.

Asynchronous action to run. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null. The action is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the action's outcome. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

Asynchronous action to run. Scheduler on which to notify observers. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null or is null. The action is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the action's outcome. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

Asynchronous action to run. Controls how the tasks's progress is observed. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null. The action is started immediately, not during the subscription of the resulting sequence. Multiple subscriptions to the resulting sequence can observe the action's outcome. If any subscription to the resulting sequence is disposed, the CancellationToken is set. The observer associated to the disposed subscription won't see the TaskCanceledException, but other observers will. You can protect against this using the Catch operator. Be careful when handing out the resulting sequence because of this behavior. The most common use is to have a single subscription to the resulting sequence, which controls the CancellationToken state. Alternatively, you can control subscription behavior using multicast operators.

Converts an asynchronous function into an observable sequence. Each subscription to the resulting sequence causes the function to be started.

The type of the result returned by the asynchronous function. Asynchronous function to convert. An observable sequence exposing the result of invoking the function, or an exception. is null.

Converts an asynchronous function into an observable sequence. Each subscription to the resulting sequence causes the function to be started.

Converts an asynchronous function into an observable sequence. Each subscription to the resulting sequence causes the function to be started. The CancellationToken passed to the asynchronous function is tied to the observable sequence's subscription that triggered the function's invocation and can be used for best-effort cancellation.

The type of the result returned by the asynchronous function. Asynchronous function to convert. An observable sequence exposing the result of invoking the function, or an exception. is null. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled.

The type of the result returned by the asynchronous function. Asynchronous function to convert. Scheduler on which to notify observers. An observable sequence exposing the result of invoking the function, or an exception. is null or is null. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled.

The type of the result returned by the asynchronous function. Asynchronous function to convert. Controls how the tasks's progress is observed. An observable sequence exposing the result of invoking the function, or an exception. is null. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled.

Converts an asynchronous action into an observable sequence. Each subscription to the resulting sequence causes the action to be started.

Asynchronous action to convert. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null.

Converts an asynchronous action into an observable sequence. Each subscription to the resulting sequence causes the action to be started.

Asynchronous action to convert. Scheduler on which to notify observers. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null or is null.

Converts an asynchronous action into an observable sequence. Each subscription to the resulting sequence causes the action to be started.

Asynchronous action to convert. Controls how the tasks's progress is observed. An observable sequence exposing a Unit value upon completion of the action, or an exception. is null.

Converts an asynchronous action into an observable sequence. Each subscription to the resulting sequence causes the action to be started. The CancellationToken passed to the asynchronous action is tied to the observable sequence's subscription that triggered the action's invocation and can be used for best-effort cancellation.

Asynchronous action to convert. An observable sequence exposing a Unit value upon completion of the action, or an exception. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled. is null.

Asynchronous action to convert. Scheduler on which to notify observers. An observable sequence exposing a Unit value upon completion of the action, or an exception. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled. is null or is null.

Asynchronous action to convert. Controls how the tasks's progress is observed. An observable sequence exposing a Unit value upon completion of the action, or an exception. When a subscription to the resulting sequence is disposed, the CancellationToken that was fed to the asynchronous function will be signaled. is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function.

The type of the result returned by the function. Function to convert to an asynchronous function. Asynchronous function. is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function on the specified scheduler.

The type of the result returned by the function. Function to convert to an asynchronous function. Scheduler to invoke the original function on. Asynchronous function. or is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function.

The type of the first argument passed to the function. The type of the result returned by the function. Function to convert to an asynchronous function. Asynchronous function. is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function on the specified scheduler.

The type of the first argument passed to the function. The type of the result returned by the function. Function to convert to an asynchronous function. Scheduler to invoke the original function on. Asynchronous function. or is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function.

The type of the first argument passed to the function. The type of the second argument passed to the function. The type of the result returned by the function. Function to convert to an asynchronous function. Asynchronous function. is null.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function on the specified scheduler.

Converts the function into an asynchronous function. Each invocation of the resulting asynchronous function causes an invocation of the original synchronous function.

The type of the first argument passed to the function. The type of the second argument passed to the function. The type of the third argument passed to the function. The type of the result returned by the function. Function to convert to an asynchronous function. Asynchronous function. is null.