CommunicationWaitResult AbortCore(CancellationToken token)
{
ICommunicationWaiter busyWaiter = null;
CommunicationWaitResult result = CommunicationWaitResult.Succeeded;
lock (ThisLock)
{
if (_busyCount > 0)
{
if (_busyWaiter != null)
{
busyWaiter = _busyWaiter;
}
else
{
busyWaiter = new AsyncCommunicationWaiter(ThisLock);
_busyWaiter = busyWaiter;
}
Interlocked.Increment(ref _busyWaiterCount);
}
}
if (busyWaiter != null)
{
result = busyWaiter.Wait(true, token);
if (Interlocked.Decrement(ref _busyWaiterCount) == 0)
{
busyWaiter.Dispose();
_busyWaiter = null;
}
}
return(result);
}
public async Task <CommunicationWaitResult> CloseCoreAsync(bool aborting, CancellationToken token)
{
token.ThrowIfCancellationRequested();
ICommunicationWaiter busyWaiter = null;
CommunicationWaitResult result = CommunicationWaitResult.Succeeded;
lock (ThisLock)
{
if (BusyCount > 0)
{
if (_busyWaiter != null)
{
if (!aborting && _aborted)
{
return(CommunicationWaitResult.Aborted);
}
busyWaiter = _busyWaiter;
}
else
{
busyWaiter = new AsyncCommunicationWaiter(ThisLock);
_busyWaiter = busyWaiter;
}
Interlocked.Increment(ref _busyWaiterCount);
}
}
if (busyWaiter != null)
{
result = await busyWaiter.WaitAsync(aborting, token);
if (Interlocked.Decrement(ref _busyWaiterCount) == 0)
{
busyWaiter.Dispose();
_busyWaiter = null;
}
}
return(result);
}
