@Override
protected void doRegister() throws Exception {
// Check if both peer and parent are non-null because this channel was created by a
// LocalServerChannel.
// This is needed as a peer may not be null also if a LocalChannel was connected before and
// deregistered / registered later again.
//
// See https://github.com/netty/netty/issues/2400
if (peer != null && parent() != null) {
// Store the peer in a local variable as it may be set to null if doClose() is called.
// Because of this we also set registerInProgress to true as we check for this in doClose()
// and make sure
// we delay the fireChannelInactive() to be fired after the fireChannelActive() and so keep
// the correct
// order of events.
//
// See https://github.com/netty/netty/issues/2144
final LocalChannel peer = this.peer;
registerInProgress = true;
state = State.CONNECTED;
peer.remoteAddress = parent() == null ? null : parent().localAddress();
peer.state = State.CONNECTED;
// Always call peer.eventLoop().execute() even if peer.eventLoop().inEventLoop() is true.
// This ensures that if both channels are on the same event loop, the peer's channelActive
// event is triggered *after* this channel's channelRegistered event, so that this channel's
// pipeline is fully initialized by ChannelInitializer before any channelRead events.
peer.eventLoop()
.execute(
new Runnable() {
@Override
public void run() {
registerInProgress = false;
peer.pipeline().fireChannelActive();
peer.connectPromise.setSuccess();
}
});
}
((SingleThreadEventExecutor) eventLoop()).addShutdownHook(shutdownHook);
}
@Override
protected Runnable doRegister() throws Exception {
final LocalChannel peer = this.peer;
Runnable postRegisterTask;
if (peer != null) {
state = 2;
peer.remoteAddress = parent().localAddress();
peer.state = 2;
// Ensure the peer's channelActive event is triggered *after* this channel's
// channelRegistered event is triggered, so that this channel's pipeline is fully
// initialized by ChannelInitializer.
final EventLoop peerEventLoop = peer.eventLoop();
postRegisterTask =
new Runnable() {
@Override
public void run() {
peerEventLoop.execute(
new Runnable() {
@Override
public void run() {
peer.connectFuture.setSuccess();
peer.pipeline().fireChannelActive();
}
});
}
};
} else {
postRegisterTask = null;
}
((SingleThreadEventLoop) eventLoop()).addShutdownHook(shutdownHook);
return postRegisterTask;
}