DispatchQueue.DispatchBarrierAsync Method
Definition
Important
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Overloads
| DispatchBarrierAsync(DispatchBlock) | |
| DispatchBarrierAsync(Action) |
Submits a barrier block for asynchronous execution on a dispatch queue |
DispatchBarrierAsync(DispatchBlock)
public void DispatchBarrierAsync (CoreFoundation.DispatchBlock block);member this.DispatchBarrierAsync : CoreFoundation.DispatchBlock -> unitParameters
- block
- DispatchBlock
Applies to
DispatchBarrierAsync(Action)
Submits a barrier block for asynchronous execution on a dispatch queue
public void DispatchBarrierAsync (Action action);member this.DispatchBarrierAsync : Action -> unitParameters
- action
- Action
Code block to submit as a barrier.
Remarks
Submits a block to a dispatch queue like DispatchAsync(Action) does and marks that block as a barrier.
This is only relevant for concurrent queues.
The submitted code block will wait for all pending concurrent blocks to complete execution, then it will execute the code block to completion. During the time that the barrier executes, any other code blocks submitted are queued, and will be scheduled to run (possibly concurrently) after the barrier method completes.