/// <summary>
/// Clean up can be called by:
/// 1. The user. AsyncUnaryCall.Dispose et al will call this on Dispose
/// 2. <see cref="ValidateHeaders"/> will call dispose if errors fail validation
/// 3. <see cref="FinishResponseAndCleanUp"/> will call dispose
/// </summary>
private void Cleanup(Status status)
{
if (!ResponseFinished)
{
// If the response is not finished then cancel any pending actions:
// 1. Call HttpClient.SendAsync
// 2. Response Stream.ReadAsync
// 3. Client stream
// - Getting the Stream from the Request.HttpContent
// - Holding the Request.HttpContent.SerializeToStream open
// - Writing to the client stream
CancelCall(status);
}
else
{
_callTcs.TrySetResult(status);
ClientStreamWriter?.WriteStreamTcs.TrySetCanceled();
ClientStreamWriter?.CompleteTcs.TrySetCanceled();
ClientStreamReader?.HttpResponseTcs.TrySetCanceled();
}
_ctsRegistration?.Dispose();
_deadlineTimer?.Dispose();
HttpResponse?.Dispose();
ClientStreamReader?.Dispose();
ClientStreamWriter?.Dispose();
// To avoid racing with Dispose, skip disposing the call CTS.
// This avoid Dispose potentially calling cancel on a disposed CTS.
// The call CTS is not exposed externally and all dependent registrations
// are cleaned up.
}
/// <summary>
/// Dispose can be called by:
/// 1. The user. AsyncUnaryCall.Dispose et al will call this Dispose
/// 2. <see cref="ValidateHeaders"/> will call dispose if errors fail validation
/// 3. <see cref="FinishResponse"/> will call dispose
/// </summary>
public void Dispose()
{
if (!Disposed)
{
Disposed = true;
if (!ResponseFinished)
{
// If the response is not finished then cancel any pending actions:
// 1. Call HttpClient.SendAsync
// 2. Response Stream.ReadAsync
// 3. Client stream
// - Getting the Stream from the Request.HttpContent
// - Holding the Request.HttpContent.SerializeToStream open
// - Writing to the client stream
_callCts.Cancel();
}
_ctsRegistration?.Dispose();
_writerCtsRegistration?.Dispose();
_deadlineTimer?.Dispose();
HttpResponse?.Dispose();
ClientStreamReader?.Dispose();
ClientStreamWriter?.Dispose();
// To avoid racing with Dispose, skip disposing the call CTS
// This avoid Dispose potentially calling cancel on a disposed CTS
// The call CTS is not exposed externally and all dependent registrations
// are cleaned up
}
}
private void DisposeCore()
{
if (!Disposed)
{
// Locking on the call because:
// 1. Its not exposed publically
// 2. Nothing else locks on call
// 3. We want to avoid allocating a private lock object
lock (this)
{
if (!Disposed)
{
Disposed = true;
if (!ResponseFinished)
{
// If the response is not finished then cancel any pending actions:
// 1. Call HttpClient.SendAsync
// 2. Response Stream.ReadAsync
// 3. Client stream
// - Getting the Stream from the Request.HttpContent
// - Holding the Request.HttpContent.SerializeToStream open
// - Writing to the client stream
CancelCall();
}
else
{
_writeStreamTcs?.TrySetCanceled();
_writeCompleteTcs?.TrySetCanceled();
}
// If response has successfully finished then the status will come from the trailers
// If it didn't finish then complete with a Cancelled status
_callTcs.TrySetResult(StatusCode.Cancelled);
_ctsRegistration?.Dispose();
_deadlineTimer?.Dispose();
HttpResponse?.Dispose();
ClientStreamReader?.Dispose();
ClientStreamWriter?.Dispose();
// To avoid racing with Dispose, skip disposing the call CTS
// This avoid Dispose potentially calling cancel on a disposed CTS
// The call CTS is not exposed externally and all dependent registrations
// are cleaned up
}
}
}
}
/// <summary>
/// Clean up can be called by:
/// 1. The user. AsyncUnaryCall.Dispose et al will call this on Dispose
/// 2. <see cref="GrpcCall.ValidateHeaders"/> will call dispose if errors fail validation
/// 3. <see cref="FinishResponseAndCleanUp"/> will call dispose
/// </summary>
private void Cleanup(Status status)
{
if (!ResponseFinished)
{
// If the response is not finished then cancel any pending actions:
// 1. Call HttpClient.SendAsync
// 2. Response Stream.ReadAsync
// 3. Client stream
// - Getting the Stream from the Request.HttpContent
// - Holding the Request.HttpContent.SerializeToStream open
// - Writing to the client stream
CancelCall(status);
}
else
{
_callTcs.TrySetResult(status);
ClientStreamWriter?.WriteStreamTcs.TrySetCanceled();
ClientStreamWriter?.CompleteTcs.TrySetCanceled();
ClientStreamReader?.HttpResponseTcs.TrySetCanceled();
}
Channel.FinishActiveCall(this);
_ctsRegistration?.Dispose();
if (_deadlineTimer != null)
{
lock (this)
{
// Timer callback can call Timer.Change so dispose deadline timer in a lock
// and set to null to indicate to the callback that it has been disposed.
_deadlineTimer?.Dispose();
_deadlineTimer = null;
}
}
HttpResponse?.Dispose();
ClientStreamReader?.Dispose();
ClientStreamWriter?.Dispose();
// To avoid racing with Dispose, skip disposing the call CTS.
// This avoid Dispose potentially calling cancel on a disposed CTS.
// The call CTS is not exposed externally and all dependent registrations
// are cleaned up.
}
