public void DoWait(QueuedSemaphore semaphore)
{
lock (this)
{
if (!semaphore.ReCheck(this))
{
try
{
while (waiting)
{
Monitor.Wait(this);
}
}
catch (ThreadInterruptedException)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return;
}
}
}
}
}
public bool DoTimedWait(QueuedSemaphore semaphore, TimeSpan timeout)
{
lock (this)
{
if (semaphore.ReCheck(this) || !waiting)
{
return(true);
}
else if (timeout.Ticks <= 0)
{
waiting = false;
return(false);
}
else
{
TimeSpan waitTime = timeout;
DateTime start = DateTime.Now;
try
{
while (true)
{
Monitor.Wait(this, waitTime);
if (!waiting)
{
return(true); // signalled
}
else
{
waitTime = timeout.Subtract(DateTime.Now.Subtract(start));
if (waitTime.Ticks <= 0)
{
waiting = false; // timed out
return(false);
}
}
}
}
catch (ThreadInterruptedException)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return(true);
}
}
}
}
}