public void TestNegativeQueueing()
{
var q = new AwaitableQueue<int>();
var hits = new List<int>();
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
Assert.AreEqual(0, q.Count);
Assert.AreEqual(3, q.PromisedCount);
q.Enqueue(1);
CollectionAssert.AreEqual(new[] { 1 }, hits);
q.Enqueue(2);
CollectionAssert.AreEqual(new[] { 1, 2 }, hits);
q.Enqueue(3);
CollectionAssert.AreEqual(new[] { 1, 2, 3 }, hits);
Assert.AreEqual(0, q.Count);
Assert.AreEqual(0, q.PromisedCount);
}
public void TestNegativeQueueing()
{
var q = new AwaitableQueue <int>();
var hits = new List <int>();
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
q.Dequeue().ContinueWith(t => {
hits.Add(t.Result);
}, TaskContinuationOptions.ExecuteSynchronously);
Assert.AreEqual(0, q.Count);
Assert.AreEqual(3, q.PromisedCount);
q.Enqueue(1);
CollectionAssert.AreEqual(new[] { 1 }, hits);
q.Enqueue(2);
CollectionAssert.AreEqual(new[] { 1, 2 }, hits);
q.Enqueue(3);
CollectionAssert.AreEqual(new[] { 1, 2, 3 }, hits);
Assert.AreEqual(0, q.Count);
Assert.AreEqual(0, q.PromisedCount);
}
public async Task TestPositiveQueueing()
{
var q = new AwaitableQueue<int>();
q.Enqueue(1);
q.Enqueue(2);
q.Enqueue(3);
Assert.AreEqual(3, q.Count);
Assert.AreEqual(0, q.PromisedCount);
Assert.AreEqual(1, await q.Dequeue());
Assert.AreEqual(2, await q.Dequeue());
Assert.AreEqual(3, await q.Dequeue());
Assert.AreEqual(0, q.Count);
Assert.AreEqual(0, q.PromisedCount);
}
public async Task TestPositiveQueueing()
{
var q = new AwaitableQueue <int>();
q.Enqueue(1);
q.Enqueue(2);
q.Enqueue(3);
Assert.AreEqual(3, q.Count);
Assert.AreEqual(0, q.PromisedCount);
Assert.AreEqual(1, await q.Dequeue());
Assert.AreEqual(2, await q.Dequeue());
Assert.AreEqual(3, await q.Dequeue());
Assert.AreEqual(0, q.Count);
Assert.AreEqual(0, q.PromisedCount);
}
public virtual async Task Send(T value)
{
if (!m_isOpen) // in go, a send to a closed channel panics
{
throw new InvalidOperationException("channel closed");
}
var tkn = Interlocked.Increment(ref SToken);
while (true)
{
var receiver = await m_receivers.Dequeue().ConfigureAwait(false);
if (receiver.TryReceive(value, true))
{
return;
}
// else we lost the race with another sender, wait for the next one
}
}