TaskCompletionSourceExtensions.SetFromTask(TSource, TResult) Method (TaskCompletionSource(TResult), Task(TSource))

TaskCompletionSourceExtensionsSetFromTaskTSource, TResult Method (TaskCompletionSourceTResult, TaskTSource)

Transfers the result of a TaskTResult to a TaskCompletionSourceTResult.

Namespace: Rackspace.Threading
Assembly: Rackspace.Threading (in Rackspace.Threading.dll) Version: 2.1.0-beta1

Syntax

public static void SetFromTask<TSource, TResult>(
	this TaskCompletionSource<TResult> taskCompletionSource,
	Task<TSource> task
)
where TSource : TResult

<ExtensionAttribute>
Public Shared Sub SetFromTask(Of TSource As TResult, TResult) ( 
	taskCompletionSource As TaskCompletionSource(Of TResult),
	task As Task(Of TSource)
)

public:
[ExtensionAttribute]
generic<typename TSource, typename TResult>
where TSource : TResult
static void SetFromTask(
	TaskCompletionSource<TResult>^ taskCompletionSource, 
	Task<TSource>^ task
)

[<ExtensionAttribute>]
static member SetFromTask : 
        taskCompletionSource : TaskCompletionSource<'TResult> * 
        task : Task<'TSource> -> unit  when 'TSource : 'TResult

Parameters

taskCompletionSource: Type: System.Threading.TasksTaskCompletionSourceTResult
The TaskCompletionSourceTResult instance.
task: Type: System.Threading.TasksTaskTSource
The result task whose completion results should be transferred.

Type Parameters

TSource: Specifies the result type of the source TaskTResult.
TResult: Specifies the result type of the TaskCompletionSourceTResult.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type TaskCompletionSourceTResult. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Exceptions

Exception	Condition
ArgumentNullException	If taskCompletionSource is . -or- If task is .
ObjectDisposedException	If the underlying TaskTResult of taskCompletionSource was disposed.
InvalidOperationException	If the underlying TaskTResult produced by taskCompletionSource is already in one of the three final states: RanToCompletion, Faulted, or Canceled.

Exception

Condition

ArgumentNullException

If taskCompletionSource is .

-or-

If task is .

ObjectDisposedException

If the underlying TaskTResult of taskCompletionSource was disposed.

InvalidOperationException

If the underlying TaskTResult produced by taskCompletionSource is already in one of the three final states: RanToCompletion, Faulted, or Canceled.

Remarks

If task is in the RanToCompletion state, the result of the task is assigned to the TaskCompletionSourceTResult using the SetResult(TResult) method.