ISourceBlock<TOutput>.ReleaseReservation Method
Definition
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
The messageHeader
is not valid.
The target
is null
.
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
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