public IObservable <Response> Send(
[NotNull] Request request,
CancellationToken token = default(CancellationToken))
{
OverlappingPipeClientStream stream = _stream;
if (_state != PipeState.Connected ||
stream == null)
{
// ReSharper disable once AssignNullToNotNullAttribute
return(Observable.Empty <Response>());
}
// ReSharper disable once AssignNullToNotNullAttribute
return(Observable.Create <Response>(
async(observer, t) =>
{
Debug.Assert(observer != null);
using (ITokenSource tokenSource = token.CreateLinked(t))
{
token = tokenSource.Token;
ConnectedCommand cr = new ConnectedCommand(request, observer);
_commandRequests.TryAdd(request.ID, cr);
try
{
await stream.WriteAsync(request.Serialize(), token).ConfigureAwait(false);
await cr.CompletionTask.WithCancellation(token).ConfigureAwait(false);
}
// ReSharper disable once EmptyGeneralCatchClause
catch
{
}
// If the command is not explicitly cancelled and is still running, and we've been cancelled
// then ask the server to cancel.
if (!cr.IsCancelled &&
!cr.IsCompleted &&
token.IsCancellationRequested)
{
try
{
using (CancellationTokenSource cts = Constants.FireAndForgetTokenSource)
await CancelCommand(request.ID, cts.Token).ConfigureAwait(false);
}
catch (TaskCanceledException)
{
}
}
// Remove the command request.
_commandRequests.TryRemove(request.ID, out cr);
}
}));
}
/// <summary>
/// Removes the specified connected command.
/// </summary>
/// <param name="connectedCommand">The connected command.</param>
public void Remove([NotNull] ConnectedCommand connectedCommand)
{
ConnectedCommand removed;
_commands.TryRemove(connectedCommand.ID, out removed);
}
public IObservable<Response> Send(
[NotNull] Request request,
CancellationToken token = default(CancellationToken))
{
OverlappingPipeClientStream stream = _stream;
if (_state != PipeState.Connected ||
stream == null)
// ReSharper disable once AssignNullToNotNullAttribute
return Observable.Empty<Response>();
// ReSharper disable once AssignNullToNotNullAttribute
return Observable.Create<Response>(
async (observer, t) =>
{
Debug.Assert(observer != null);
using (ITokenSource tokenSource = token.CreateLinked(t))
{
token = tokenSource.Token;
ConnectedCommand cr = new ConnectedCommand(request, observer);
_commandRequests.TryAdd(request.ID, cr);
try
{
await stream.WriteAsync(request.Serialize(), token).ConfigureAwait(false);
await cr.CompletionTask.WithCancellation(token).ConfigureAwait(false);
}
// ReSharper disable once EmptyGeneralCatchClause
catch
{
}
// If the command is not explicitly cancelled and is still running, and we've been cancelled
// then ask the server to cancel.
if (!cr.IsCancelled &&
!cr.IsCompleted &&
token.IsCancellationRequested)
try
{
using (CancellationTokenSource cts = Constants.FireAndForgetTokenSource)
await CancelCommand(request.ID, cts.Token).ConfigureAwait(false);
}
catch (TaskCanceledException)
{
}
// Remove the command request.
_commandRequests.TryRemove(request.ID, out cr);
}
});
}
