protected internal virtual void doWait(QueuedSemaphore sem)
{
lock (this)
{
if (!sem.Recheck(this))
{
try
{
while (waiting)
{
//TODO: ? System.Threading.Monitor.Wait(this);
System.Threading.Monitor.Wait(sem);
}
}
catch (System.Threading.ThreadInterruptedException ex)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw ex;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return;
}
}
}
}
}
protected internal virtual bool doTimedWait(QueuedSemaphore sem, long msecs)
{
lock (this)
{
if (sem.Recheck(this) || !waiting)
{
return(true);
}
else if (msecs <= 0)
{
waiting = false;
return(false);
}
else
{
long waitTime = msecs;
long start = Utils.CurrentTimeMillis;
try
{
for (; ;)
{
//TODO: ? System.Threading.Monitor.Wait(this, TimeSpan.FromMilliseconds(waitTime));
System.Threading.Monitor.Wait(sem, TimeSpan.FromMilliseconds(waitTime));
if (!waiting)
{
// definitely signalled
return(true);
}
else
{
waitTime = msecs - (Utils.CurrentTimeMillis - start);
if (waitTime <= 0)
{
// timed out
waiting = false;
return(false);
}
}
}
}
catch (System.Threading.ThreadInterruptedException ex)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw ex;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return(true);
}
}
}
}
}
protected internal virtual bool signal(QueuedSemaphore sem)
{
lock (this)
{
bool signalled = waiting;
if (signalled)
{
waiting = false;
// TODO: ? System.Threading.Monitor.Pulse(this);
System.Threading.Monitor.Pulse(sem);
}
return(signalled);
}
}
protected internal virtual bool signal(QueuedSemaphore sem)
{
lock (this)
{
bool signalled = waiting;
if (signalled)
{
waiting = false;
// TODO: ? System.Threading.Monitor.Pulse(this);
System.Threading.Monitor.Pulse(sem);
}
return signalled;
}
}
protected internal virtual void doWait(QueuedSemaphore sem)
{
lock (this)
{
if (!sem.Recheck(this))
{
try
{
while (waiting)
{
//TODO: ? System.Threading.Monitor.Wait(this);
System.Threading.Monitor.Wait(sem);
}
}
catch (System.Threading.ThreadInterruptedException ex)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw ex;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return;
}
}
}
}
}
protected internal virtual bool doTimedWait(QueuedSemaphore sem, long msecs)
{
lock (this)
{
if (sem.Recheck(this) || !waiting)
return true;
else if (msecs <= 0)
{
waiting = false;
return false;
}
else
{
long waitTime = msecs;
long start = Utils.CurrentTimeMillis;
try
{
for (; ; )
{
//TODO: ? System.Threading.Monitor.Wait(this, TimeSpan.FromMilliseconds(waitTime));
System.Threading.Monitor.Wait(sem, TimeSpan.FromMilliseconds(waitTime));
if (!waiting)
// definitely signalled
return true;
else
{
waitTime = msecs - (Utils.CurrentTimeMillis - start);
if (waitTime <= 0)
{
// timed out
waiting = false;
return false;
}
}
}
}
catch (System.Threading.ThreadInterruptedException ex)
{
if (waiting)
{
// no notification
waiting = false; // invalidate for the signaller
throw ex;
}
else
{
// thread was interrupted after it was notified
Thread.CurrentThread.Interrupt();
return true;
}
}
}
}
}
