ISourceBlock<TOutput>.ReleaseReservation Method

Reference

Definition

Namespace:: System.Threading.Tasks.Dataflow

Assembly:: System.Threading.Tasks.Dataflow.dll

Important

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Called by a linked ITargetBlock<TInput> to release a previously reserved DataflowMessageHeader by this ISourceBlock<TOutput>.

public:
 void ReleaseReservation(System::Threading::Tasks::Dataflow::DataflowMessageHeader messageHeader, System::Threading::Tasks::Dataflow::ITargetBlock<TOutput> ^ target);

public void ReleaseReservation (System.Threading.Tasks.Dataflow.DataflowMessageHeader messageHeader, System.Threading.Tasks.Dataflow.ITargetBlock<out TOutput> target);

abstract member ReleaseReservation : System.Threading.Tasks.Dataflow.DataflowMessageHeader * System.Threading.Tasks.Dataflow.ITargetBlock<'Output> -> unit

Public Sub ReleaseReservation (messageHeader As DataflowMessageHeader, target As ITargetBlock(Of Out TOutput))

Parameters

messageHeader: DataflowMessageHeader

The DataflowMessageHeader of the reserved message being released.

target: ITargetBlock<TOutput>

The ITargetBlock<TInput> releasing the message it previously reserved.

Exceptions

ArgumentException

The messageHeader is not valid.

ArgumentNullException

The target is null.

InvalidOperationException

The target did not have the message reserved.

Remarks

Only ITargetBlock<TInput> instances linked to this ISourceBlock<TOutput> instance may use ReleaseReservation, and it must only be used to release DataflowMessageHeader instances previously and successfully reserved by the target.

Applies to