awaitable Task based queue

Question

I\'m wondering if there exists an implementation/wrapper for ConcurrentQueue, similar to BlockingCollection where taking from the collection does not block, but is instead a

Answer 1

I don't know of a lock-free solution, but you can take a look at the new Dataflow library, part of the Async CTP. A simple BufferBlock should suffice, e.g.:

BufferBlock buffer = new BufferBlock();

Production and consumption are most easily done via extension methods on the dataflow block types.

Production is as simple as:

buffer.Post(13);

and consumption is async-ready:

int item = await buffer.ReceiveAsync();

I do recommend you use Dataflow if possible; making such a buffer both efficient and correct is more difficult than it first appears.