public async Task <TryAsyncResult <T> > WaitAsync(CancellationToken token)
{
bool isSafeToClose = false;
try
{
if (!await waitEvent.WaitAsync(token))
{
if (inputQueue.RemoveReader(this))
{
isSafeToClose = true;
return(TryAsyncResult <T> .FailedResult);
}
else
{
await waitEvent.WaitAsync();
}
}
isSafeToClose = true;
}
finally
{
if (isSafeToClose)
{
waitEvent.Dispose();
}
}
if (exception != null)
{
throw Fx.Exception.AsError(exception);
}
return(TryAsyncResult.FromResult(item));
}
public async Task <(T result, bool success)> WaitAsync(CancellationToken token)
{
bool isSafeToClose = false;
try
{
if (!await waitEvent.WaitAsync(token))
{
if (inputQueue.RemoveReader(this))
{
isSafeToClose = true;
return(null, false);
}
else
{
await waitEvent.WaitAsync();
}
}
isSafeToClose = true;
}
finally
{
if (isSafeToClose)
{
waitEvent.Dispose();
}
}
if (exception != null)
{
throw Fx.Exception.AsError(exception);
}
return(item, true);
}