public void ReadAsyncCancellationDeadlock()
{
var cts = new CancellationTokenSource();
var cts2 = new CancellationTokenSource();
var e = new ManualResetEventSlim();
ValueTaskAwaiter <ReadResult> awaiter = Pipe.Reader.ReadAsync(cts.Token).GetAwaiter();
awaiter.OnCompleted(
() => {
// We are on cancellation thread and need to wait until another ReadAsync call
// takes pipe state lock
e.Wait();
// Make sure we had enough time to reach _cancellationTokenRegistration.Dispose
Thread.Sleep(100);
// Try to take pipe state lock
Pipe.Reader.ReadAsync();
});
// Start a thread that would run cancellation callbacks
Task cancellationTask = Task.Run(() => cts.Cancel());
// Start a thread that would call ReadAsync with different token
// and block on _cancellationTokenRegistration.Dispose
Task blockingTask = Task.Run(
() => {
e.Set();
Pipe.Reader.ReadAsync(cts2.Token);
});
bool completed = Task.WhenAll(cancellationTask, blockingTask).Wait(TimeSpan.FromSeconds(30));
Assert.True(completed, $"Read tasks are not completed. CancellationTask: {cancellationTask.Status} BlockingTask: {blockingTask.Status}");
}
public void ValueTask_MultipleContinuations_Throws()
{
ValueTaskAwaiter <int> readVt = CreateChannel().Reader.ReadAsync().GetAwaiter();
readVt.OnCompleted(() => { });
Assert.Throws <InvalidOperationException>(() => readVt.OnCompleted(() => { }));
ValueTaskAwaiter <bool> waitReadVt = CreateChannel().Reader.WaitToReadAsync().GetAwaiter();
waitReadVt.OnCompleted(() => { });
Assert.Throws <InvalidOperationException>(() => waitReadVt.OnCompleted(() => { }));
if (CreateFullChannel() != null)
{
ValueTaskAwaiter writeVt = CreateFullChannel().Writer.WriteAsync(42).GetAwaiter();
writeVt.OnCompleted(() => { });
Assert.Throws <InvalidOperationException>(() => writeVt.OnCompleted(() => { }));
ValueTaskAwaiter <bool> waitWriteVt = CreateFullChannel().Writer.WaitToWriteAsync().GetAwaiter();
waitWriteVt.OnCompleted(() => { });
Assert.Throws <InvalidOperationException>(() => waitWriteVt.OnCompleted(() => { }));
}
}
public void ReadAsyncReturnsIsCancelOnCancelPendingReadBeforeGetResult()
{
ValueTaskAwaiter <ReadResult> awaitable = Pipe.Reader.ReadAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(() => { });
Pipe.Writer.WriteAsync(new byte[] { });
Pipe.Reader.CancelPendingRead();
Assert.True(awaitable.IsCompleted);
ReadResult result = awaitable.GetResult();
Assert.True(result.IsCanceled);
}
public void FlushAsyncReturnsIsCancelOnCancelPendingFlushBeforeGetResult()
{
PipeWriter writableBuffer = Pipe.Writer.WriteEmpty(MaximumSizeHigh);
ValueTaskAwaiter <FlushResult> awaitable = writableBuffer.FlushAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(() => { });
Pipe.Reader.AdvanceTo(Pipe.Reader.ReadAsync().GetAwaiter().GetResult().Buffer.End);
Pipe.Writer.CancelPendingFlush();
Assert.True(awaitable.IsCompleted);
FlushResult result = awaitable.GetResult();
Assert.True(result.IsCanceled);
}
public void GetResultThrowsIfReadAsyncCanceledBeforeOnCompleted()
{
var onCompletedCalled = false;
var cancellationTokenSource = new CancellationTokenSource();
ValueTaskAwaiter <ReadResult> awaiter = Pipe.Reader.ReadAsync(cancellationTokenSource.Token).GetAwaiter();
bool awaiterIsCompleted = awaiter.IsCompleted;
cancellationTokenSource.Cancel();
awaiter.OnCompleted(
() => {
onCompletedCalled = true;
Assert.Throws <OperationCanceledException>(() => awaiter.GetResult());
});
Assert.False(awaiterIsCompleted);
Assert.True(onCompletedCalled);
}
public void GetResultThrowsIfFlushAsyncCanceledBeforeOnCompleted()
{
var onCompletedCalled = false;
var cancellationTokenSource = new CancellationTokenSource();
PipeWriter buffer = Pipe.Writer.WriteEmpty(MaximumSizeHigh);
ValueTaskAwaiter <FlushResult> awaiter = buffer.FlushAsync(cancellationTokenSource.Token).GetAwaiter();
bool awaiterIsCompleted = awaiter.IsCompleted;
cancellationTokenSource.Cancel();
awaiter.OnCompleted(
() => {
onCompletedCalled = true;
Assert.Throws <OperationCanceledException>(() => awaiter.GetResult());
});
Assert.False(awaiterIsCompleted);
Assert.True(onCompletedCalled);
}
public void ReadAsyncNotCompletedAfterCancellationTokenCanceled()
{
var onCompletedCalled = false;
var cts = new CancellationTokenSource();
ValueTaskAwaiter <ReadResult> awaitable = Pipe.Reader.ReadAsync(cts.Token).GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(
() => {
onCompletedCalled = true;
Assert.True(awaitable.IsCompleted);
Assert.Throws <OperationCanceledException>(() => awaitable.GetResult());
awaitable = Pipe.Reader.ReadAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
});
cts.Cancel();
Assert.True(onCompletedCalled);
}
public void ReadAsyncNotCompletedAfterCancellation()
{
var onCompletedCalled = false;
ValueTaskAwaiter <ReadResult> awaitable = Pipe.Reader.ReadAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(
() => {
onCompletedCalled = true;
Assert.True(awaitable.IsCompleted);
ReadResult readResult = awaitable.GetResult();
Assert.True(readResult.IsCanceled);
awaitable = Pipe.Reader.ReadAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
});
Pipe.Reader.CancelPendingRead();
Assert.True(onCompletedCalled);
}
public async Task ReadAsyncReturnsDataAfterItWasWrittenDuringCancelledRead()
{
ValueTask <ReadResult> readTask = Pipe.Reader.ReadAsync();
ValueTaskAwaiter <ReadResult> awaiter = readTask.GetAwaiter();
ReadResult result = default;
awaiter.OnCompleted(
() =>
{
Pipe.Writer.WriteAsync(new byte[] { 1 }).AsTask().Wait();
result = awaiter.GetResult();
});
Pipe.Reader.CancelPendingRead();
Assert.True(result.IsCanceled);
result = await Pipe.Reader.ReadAsync();
Assert.False(result.IsCanceled);
Assert.Equal(new byte[] { 1 }, result.Buffer.ToArray());
}
public void FlushAsyncCancellationDeadlock()
{
var cts = new CancellationTokenSource();
var cts2 = new CancellationTokenSource();
PipeWriter buffer = Pipe.Writer.WriteEmpty(MaximumSizeHigh);
var e = new ManualResetEventSlim();
ValueTaskAwaiter <FlushResult> awaiter = buffer.FlushAsync(cts.Token).GetAwaiter();
awaiter.OnCompleted(
() => {
// We are on cancellation thread and need to wait untill another FlushAsync call
// takes pipe state lock
e.Wait();
// Make sure we had enough time to reach _cancellationTokenRegistration.Dispose
Thread.Sleep(100);
// Try to take pipe state lock
buffer.FlushAsync();
});
// Start a thread that would run cancellation calbacks
Task cancellationTask = Task.Run(() => cts.Cancel());
// Start a thread that would call FlushAsync with different token
// and block on _cancellationTokenRegistration.Dispose
Task blockingTask = Task.Run(
() => {
e.Set();
buffer.FlushAsync(cts2.Token);
});
bool completed = Task.WhenAll(cancellationTask, blockingTask).Wait(TimeSpan.FromSeconds(10));
Assert.True(completed);
}
public void FlushAsyncNotCompletedAfterCancellationTokenCanceled()
{
var onCompletedCalled = false;
var cts = new CancellationTokenSource();
PipeWriter writableBuffer = Pipe.Writer.WriteEmpty(MaximumSizeHigh);
ValueTaskAwaiter <FlushResult> awaitable = writableBuffer.FlushAsync(cts.Token).GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(
() => {
onCompletedCalled = true;
Assert.True(awaitable.IsCompleted);
Assert.Throws <OperationCanceledException>(() => awaitable.GetResult());
awaitable = writableBuffer.FlushAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
});
cts.Cancel();
Assert.True(onCompletedCalled);
}
public void OnReaderCompletedRanBeforeFlushContinuation()
{
var callbackRan = false;
var continuationRan = false;
var pipe = new Pipe(new PipeOptions(_pool, pauseWriterThreshold: 5, readerScheduler: PipeScheduler.Inline, writerScheduler: PipeScheduler.Inline, useSynchronizationContext: false));
pipe.Writer.OnReaderCompleted(
(exception, state) =>
{
Assert.False(continuationRan);
callbackRan = true;
}, null);
PipeWriter buffer = pipe.Writer.WriteEmpty(10);
ValueTaskAwaiter <FlushResult> awaiter = buffer.FlushAsync().GetAwaiter();
Assert.False(awaiter.IsCompleted);
awaiter.OnCompleted(() => { continuationRan = true; });
pipe.Reader.Complete();
Assert.True(callbackRan);
pipe.Writer.Complete();
}
public void FlushAsyncNotCompletedAfterCancellation()
{
var onCompletedCalled = false;
PipeWriter writableBuffer = Pipe.Writer.WriteEmpty(MaximumSizeHigh);
ValueTaskAwaiter <FlushResult> awaitable = writableBuffer.FlushAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
awaitable.OnCompleted(
() => {
onCompletedCalled = true;
Assert.True(awaitable.IsCompleted);
FlushResult flushResult = awaitable.GetResult();
Assert.True(flushResult.IsCanceled);
awaitable = writableBuffer.FlushAsync().GetAwaiter();
Assert.False(awaitable.IsCompleted);
});
Pipe.Writer.CancelPendingFlush();
Assert.True(onCompletedCalled);
}
private async void SynthesizeTxtBuffer(string text, string model)
{
UtteranceSynthesisRequest request = MakeRequest(text, model);
// request.Hints.Add(new Hints() { Voice = "kuznetsov_male" });
Metadata callHeaders = this.MakeMetadata();
callHeaders.Add("x-folder-id", this.FolderId);
CancellationTokenSource cancellationSource = new CancellationTokenSource();
var call = synthesizerClient.UtteranceSynthesis(request, headers: callHeaders,
deadline: DateTime.UtcNow.AddMinutes(5));
log.Information($"synthizing: {text}");
var respEnum = call.ResponseStream.ReadAllAsync(cancellationSource.Token).GetAsyncEnumerator();
try
{
ValueTaskAwaiter <bool> tsk = respEnum.MoveNextAsync().GetAwaiter();
tsk.OnCompleted(() =>
{
if (respEnum.Current != null)
{
byte[] data = respEnum.Current.AudioChunk.Data.ToByteArray();
TextToSpeachResultsRecieved?.Invoke(this, AudioDataEventArgs.FromByateArray(data, data.Length));
log.Information($"Audio chunk {data.Length} bytes recieved.");
}
else
{
log.Warning("No data in response");
}
});
while (!tsk.IsCompleted)
{
Thread.Sleep(200);
}
return;
}
catch (Exception ex)
{
log.Error(ex.Message);
}
finally
{
if (respEnum != null)
{
await respEnum.DisposeAsync();
}
/* IAsyncEnumerator<UtteranceSynthesisResponse> respEnum = respEnumerable.GetAsyncEnumerator();
*
* while (!respEnum.MoveNextAsync().GetAwaiter().IsCompleted)
* {
* Thread.Sleep(200);
* }
*
* byte[] data = respEnum.Current.AudioChunk.Data.ToByteArray();
* TextToSpeachResultsRecieved?.Invoke(this, AudioDataEventArgs.FromByateArray(data,
* data.Length));
*
* await respEnum.DisposeAsync();
* call.Dispose();*/
}
}
public void OnCompleted(Action completion) => awaiter.OnCompleted(completion);