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javamultithreadingperformancejava.util.concurrent
Alex R
Alex R

Reputation: 193

multithreaded BlockingQueue - add at the head

I have a problem with BlockingQueue.

It is working for me when I use it as the queue. However, sometimes I would like to return several tasks to the queue to the head.

I assume BlockingQueue is not able to do that operation.

Is any other structure is able to do that and is ThreadSafe? I would like to avoid Collections.synchronizedList() but I do not have any idea how to implement such problem with java.utils.concurrent possibilities?

Any hints which structure is able to support such a problem in multi-threaded environment, please?

Upvotes: 0

Views: 342

Answers (1)

Jason
Jason

Reputation: 5246

Are you looking for a BlockingDeque? addLast doesn't block and adds to tail and putLast blocks and adds to tail.

Upvotes: 3

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