private void deregister(bool fireChannelInactive)
{
if (!channel.registered)
{
return;
}
WindowsSelectorImpl windowsSelector = ((WindowsSelectorImpl)((NioEventLoop)(channel.eventLoop())).unwrappedSelector());
windowsSelector.deRegister((SelectionKeyImpl)channel.selectionKey());
// As a user may call deregister() from within any method while doing processing in the ChannelPipeline,
// we need to ensure we do the actual deregister operation later. This is needed as for example,
// we may be in the ByteToMessageDecoder.callDecode(...) method and so still try to do processing in
// the old EventLoop while the user already registered the Channel to a new EventLoop. Without delay,
// the deregister operation this could lead to have a handler invoked by different EventLoop and so
// threads.
//
// See:
// https://github.com/netty/netty/issues/4435
invokeLater(() =>
{
try
{
doDeregister();
}
catch (Exception t)
{
logger.Warn(t, "Unexpected exception occurred while deregistering a channel.");
}
finally
{
if (fireChannelInactive)
{
channel.pipeline().fireChannelInactive();
}
// Some transports like local and AIO does not allow the deregistration of
// an open channel. Their doDeregister() calls close(). Consequently,
// close() calls deregister() again - no need to fire channelUnregistered, so check
// if it was registered.
if (channel.registered)
{
channel.registered = false;
channel.pipeline().fireChannelUnregistered();
}
}
});
}
protected override void run()
{
while (true)
{
if (isTask == true)
{
runAllTasks();
Thread.Sleep(1);
}
else
{
WindowsSelectorImpl windowsSelector = (WindowsSelectorImpl)_unwrappedSelector;
SelectionKeyImpl[] selectionKeys = windowsSelector.getChannels();
foreach (SelectionKeyImpl selectionKey in selectionKeys)
{
if (selectionKey == null)
{
continue;
}
Object a = selectionKey.attachment();
if (!(a is AbstractChannel))
{
continue;
}
AbstractChannel ch = (AbstractChannel)a;
ch.getUnsafe().close();
runAllTasks();
}
break;
}
}
}
