protected override bool DoPoll()
{
IMessage message = _source.Receive();
if (message != null)
{
return(_channelTemplate.Send(message, _outputChannel));
}
return(false);
}
public Message Receive(TimeSpan timeout)
{
TimeoutHelper timeoutHelper = new TimeoutHelper(timeout);
// If timeout == TimeSpan.MaxValue, then we want to pass Timeout.Infinite as
// SemaphoreSlim doesn't accept timeouts > Int32.MaxValue.
// Using TimeoutHelper.RemainingTime() would yield a value less than TimeSpan.MaxValue
// and would result in the value Int32.MaxValue so we must use the original timeout specified.
if (!_sourceLock.Wait(TimeoutHelper.ToMilliseconds(timeout)))
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
new TimeoutException(SR.Format(SR.ReceiveTimedOut2, timeout),
TimeoutHelper.CreateEnterTimedOutException(timeout)));
}
try
{
return(_source.Receive(timeoutHelper.RemainingTime()));
}
finally
{
_sourceLock.Release();
}
}