public void finish(EventHandler handler)
{
lock (this)
{
Debug.Assert(!_destroyed);
handler._registered = SocketOperation.None;
//
// If there are no pending asynchronous operations, we can call finish on the handler now.
//
if (handler._pending == 0)
{
executeNonBlocking(() =>
{
ThreadPoolCurrent current = new ThreadPoolCurrent(this, handler, SocketOperation.None);
handler.finished(ref current);
});
}
else
{
handler._finish = true;
}
}
}
public void finish(EventHandler handler)
{
_m.Lock();
try
{
Debug.Assert(!_destroyed);
if (handler._pending == 0)
{
handler._registered = SocketOperation.None;
executeNonBlocking(delegate()
{
ThreadPoolCurrent current =
new ThreadPoolCurrent(this, handler, SocketOperation.None);
handler.finished(ref current);
});
}
else
{
handler._finish = true;
}
}
finally
{
_m.Unlock();
}
}
public override void Finished(ref ThreadPoolCurrent current)
{
lock (this)
{
Debug.Assert(_state == State.Closed);
SetState(State.Finished);
}
}
public void finishIOScope(ref ThreadPoolCurrent current)
{
if (_finishWithIO)
{
// This must be called with the handler locked.
current.finishMessage(true);
}
}
public void finishIOScope(ref ThreadPoolCurrent current)
{
if(_finishWithIO)
{
// This must be called with the handler locked.
current.finishMessage(true);
}
}
public bool startMessage(ref ThreadPoolCurrent current)
{
Debug.Assert((current._handler._pending & current.operation) != 0);
if ((current._handler._started & current.operation) != 0)
{
Debug.Assert((current._handler._ready & current.operation) == 0);
current._handler._ready |= current.operation;
current._handler._started &= ~current.operation;
if (!current._handler.finishAsync(current.operation)) // Returns false if the handler is finished.
{
current._handler._pending &= ~current.operation;
if (current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return(false);
}
}
else if ((current._handler._ready & current.operation) == 0 &&
(current._handler._registered & current.operation) != 0)
{
Debug.Assert((current._handler._started & current.operation) == 0);
bool completed = false;
if (!current._handler.startAsync(current.operation, getCallback(current.operation), ref completed))
{
current._handler._pending &= ~current.operation;
if (current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return(false);
}
else
{
current.completedSynchronously = completed;
current._handler._started |= current.operation;
return(false);
}
}
if ((current._handler._registered & current.operation) != 0)
{
Debug.Assert((current._handler._ready & current.operation) != 0);
current._handler._ready &= ~current.operation;
return(true);
}
else
{
current._handler._pending &= ~current.operation;
if (current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return(false);
}
}
public void finishIOScope(ref ThreadPoolCurrent current)
{
if(_finishWithIO)
{
lock(_mutex)
{
current.finishMessage(true);
}
}
}
public void finishIOScope(ref ThreadPoolCurrent current)
{
if (_finishWithIO)
{
lock (_mutex)
{
current.finishMessage(true);
}
}
}
public void completed(ref ThreadPoolCurrent current)
{
//
// Call finishMessage once IO is completed only if serialization is not enabled.
// Otherwise, finishMessage will be called when the event handler is done with
// the message (it will be called from destroy below).
//
Debug.Assert(_finishWithIO);
if (current.ioCompleted())
{
_finishWithIO = false;
_finish = true;
}
}
public void completed(ref ThreadPoolCurrent current)
{
//
// Call finishMessage once IO is completed only if serialization is not enabled.
// Otherwise, finishMessage will be called when the event handler is done with
// the message (it will be called from destroy below).
//
Debug.Assert(_finishWithIO);
if(current.ioCompleted())
{
_finishWithIO = false;
_finish = true;
}
}
public void destroy(ref ThreadPoolCurrent current)
{
if(_finish)
{
//
// A ThreadPoolMessage instance must be created outside the synchronization
// of the event handler. We need to lock the event handler here to call
// finishMessage.
//
lock(_mutex)
{
current.finishMessage(false);
Debug.Assert(!current.completedSynchronously);
}
}
}
public void destroy(ref ThreadPoolCurrent current)
{
if (_finish)
{
//
// A ThreadPoolMessage instance must be created outside the synchronization
// of the event handler. We need to lock the event handler here to call
// finishMessage.
//
lock (_mutex)
{
current.finishMessage(false);
Debug.Assert(!current.completedSynchronously);
}
}
}
public void messageCallback(ThreadPoolCurrent current)
{
try
{
do
{
current.completedSynchronously = false;
current._handler.message(ref current);
}while(current.completedSynchronously);
}
catch (System.Exception ex)
{
string s = "exception in `" + _prefix + "':\n" + ex + "\nevent handler: " + current._handler.ToString();
_instance.initializationData().logger.error(s);
}
}
public void finishMessage(ref ThreadPoolCurrent current, bool fromIOThread)
{
if ((current._handler._registered & current.operation) != 0)
{
if (fromIOThread)
{
Debug.Assert((current._handler._ready & current.operation) == 0);
bool completed = false;
if (!current._handler.startAsync(current.operation, getCallback(current.operation), ref completed))
{
current._handler._pending &= ~current.operation;
}
else
{
Debug.Assert((current._handler._pending & current.operation) != 0);
current.completedSynchronously = completed;
current._handler._started |= current.operation;
}
}
else
{
ThreadPoolCurrent c = current;
executeNonBlocking(() =>
{
messageCallback(c);
});
}
}
else
{
current._handler._pending &= ~current.operation;
}
if (current._handler._pending == 0 && current._handler._finish)
{
// There are no more pending async operations, it's time to call finish.
finish(current._handler);
}
}
public void finishMessage(ref ThreadPoolCurrent current, bool fromIOThread)
{
if((current._handler._registered & current.operation) != 0)
{
if(fromIOThread)
{
Debug.Assert((current._handler._ready & current.operation) == 0);
bool completed = false;
if(!current._handler.startAsync(current.operation, getCallback(current.operation), ref completed))
{
current._handler._pending &= ~current.operation;
}
else
{
Debug.Assert((current._handler._pending & current.operation) != 0);
current.completedSynchronously = completed;
current._handler._started |= current.operation;
}
}
else
{
ThreadPoolCurrent c = current;
executeNonBlocking(() =>
{
messageCallback(c);
});
}
}
else
{
current._handler._pending &= ~current.operation;
}
if(current._handler._pending == 0 && current._handler._finish)
{
// There are no more pending async operations, it's time to call finish.
finish(current._handler);
}
}
public void finish(EventHandler handler)
{
lock(this)
{
Debug.Assert(!_destroyed);
//
// If there are no pending asynchronous operations, we can call finish on the handler now.
//
if(handler._pending == 0)
{
handler._registered = SocketOperation.None;
executeNonBlocking(() =>
{
ThreadPoolCurrent current = new ThreadPoolCurrent(this, handler, SocketOperation.None);
handler.finished(ref current);
});
}
else
{
handler._finish = true;
}
}
}
public bool startIOScope(ref ThreadPoolCurrent current)
{
// This must be called with the handler locked.
_finishWithIO = current.startMessage();
return _finishWithIO;
}
// // Called when there's a message ready to be processed. // abstract public void message(ref ThreadPoolCurrent op);
// // Called when the event handler is unregistered. // abstract public void finished(ref ThreadPoolCurrent op);
public bool startIOScope(ref ThreadPoolCurrent current)
{
// This must be called with the handler locked.
_finishWithIO = current.startMessage();
return(_finishWithIO);
}
// // Called when there's a message ready to be processed. // abstract public void message(ref ThreadPoolCurrent op);
// // Called when the event handler is unregistered. // abstract public void finished(ref ThreadPoolCurrent op);
public void finish(EventHandler handler)
{
_m.Lock();
try
{
Debug.Assert(!_destroyed);
if(handler._pending == 0)
{
handler._registered = SocketOperation.None;
executeNonBlocking(delegate()
{
ThreadPoolCurrent current =
new ThreadPoolCurrent(this, handler, SocketOperation.None);
handler.finished(ref current);
});
}
else
{
handler._finish = true;
}
}
finally
{
_m.Unlock();
}
}
public void messageCallback(ThreadPoolCurrent current)
{
try
{
do
{
current.completedSynchronously = false;
current._handler.message(ref current);
}
while(current.completedSynchronously);
}
catch(System.Exception ex)
{
string s = "exception in `" + _prefix + "':\n" + ex + "\nevent handler: " + current._handler.ToString();
_instance.initializationData().logger.error(s);
}
}
public bool startMessage(ref ThreadPoolCurrent current)
{
Debug.Assert((current._handler._pending & current.operation) != 0);
if((current._handler._started & current.operation) != 0)
{
Debug.Assert((current._handler._ready & current.operation) == 0);
current._handler._ready |= current.operation;
current._handler._started &= ~current.operation;
if(!current._handler.finishAsync(current.operation)) // Returns false if the handler is finished.
{
current._handler._pending &= ~current.operation;
if(current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return false;
}
}
else if((current._handler._ready & current.operation) == 0 &&
(current._handler._registered & current.operation) != 0)
{
Debug.Assert((current._handler._started & current.operation) == 0);
bool completed = false;
if(!current._handler.startAsync(current.operation, getCallback(current.operation), ref completed))
{
current._handler._pending &= ~current.operation;
if(current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return false;
}
else
{
current.completedSynchronously = completed;
current._handler._started |= current.operation;
return false;
}
}
if((current._handler._registered & current.operation) != 0)
{
Debug.Assert((current._handler._ready & current.operation) != 0);
current._handler._ready &= ~current.operation;
return true;
}
else
{
current._handler._pending &= ~current.operation;
if(current._handler._pending == 0 && current._handler._finish)
{
finish(current._handler);
}
return false;
}
}
public override void Message(ref ThreadPoolCurrent current)
{
Connection?connection = null;
var msg = new ThreadPoolMessage(this);
lock (this)
{
if (!msg.StartIOScope(ref current))
{
return;
}
try
{
if (_state >= State.Closed)
{
return;
}
// Reap closed connections
foreach (Connection c in _monitor.SwapReapedConnections())
{
_connections.Remove(c);
}
// Now accept a new connection.
ITransceiver transceiver;
try
{
if (_acceptorException != null)
{
throw _acceptorException;
}
transceiver = _acceptor !.Accept();
if (_communicator.TraceLevels.Network >= 2)
{
_communicator.Logger.Trace(_communicator.TraceLevels.NetworkCat,
$"trying to accept {_endpoint.Name} connection\n{transceiver}");
}
}
catch (System.Exception ex)
{
_communicator.Logger.Error($"can't accept more connections:\n{ex}\n{_acceptor}");
_acceptorException = null;
// Ignore socket exceptions.
return;
}
Debug.Assert(transceiver != null);
try
{
connection = new Connection(_communicator, _monitor, transceiver, null, _endpoint, _adapter);
}
catch (System.Exception ex)
{
try
{
transceiver.Close();
}
catch (System.Exception)
{
// Ignore
}
if (_warn)
{
_communicator.Logger.Warning($"connection exception:\n{ex}\n{_acceptor}");
}
return;
}
_connections.Add(connection);
}
finally
{
msg.FinishIOScope(ref current);
}
}
Debug.Assert(connection != null);
connection.Start(null);
}
