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

Check out https://github.com/somdoron/AsyncCollection, you can both dequeue asynchronously and use C# 8.0 IAsyncEnumerable.

The API is very similar to BlockingCollection.

AsyncCollection collection = new AsyncCollection();

var t = Task.Run(async () =>
{
    while (!collection.IsCompleted)
    {
        var item = await collection.TakeAsync();

        // process
    }
});

for (int i = 0; i < 1000; i++)
{
    collection.Add(i);
}

collection.CompleteAdding();

t.Wait();

With IAsyncEnumeable:

AsyncCollection collection = new AsyncCollection();

var t = Task.Run(async () =>
{
    await foreach (var item in collection)
    {
        // process
    }
});

for (int i = 0; i < 1000; i++)
{
    collection.Add(i);
}

collection.CompleteAdding();

t.Wait();