SelectableChannel doConnect() throws IOException, InterruptedException {
final ServerSocketChannel serverChannel = ServerSocketChannel.open();
serverChannel.socket().setReceiveBufferSize(BUFFER_SIZE);
serverChannel.configureBlocking(false);
final ServerSocket serverSocket = serverChannel.socket();
serverSocket.setReuseAddress(true);
serverSocket.bind(details.address());
// these can be run on this thread
addPendingRegistration(
new Runnable() {
@Override
public void run() {
final Attached attached = new Attached();
attached.connector = ServerConnector.this;
try {
serverChannel.register(TcpReplicator.this.selector, OP_ACCEPT, attached);
} catch (ClosedChannelException e) {
LOG.error("", e);
}
}
});
selector.wakeup();
return serverChannel;
}
/** blocks until connected */
@Override
SelectableChannel doConnect() throws IOException, InterruptedException {
boolean success = false;
final SocketChannel socketChannel = SocketChannel.open();
try {
socketChannel.configureBlocking(false);
socketChannel.socket().setReuseAddress(true);
socketChannel.socket().setSoLinger(false, 0);
socketChannel.socket().setSoTimeout(0);
socketChannel.socket().setTcpNoDelay(true);
try {
socketChannel.connect(details.address());
} catch (UnresolvedAddressException e) {
this.connectLater();
}
// Under experiment, the concoction was found to be more successful if we
// paused before registering the OP_CONNECT
Thread.sleep(10);
// the registration has be be run on the same thread as the selector
addPendingRegistration(
new Runnable() {
@Override
public void run() {
final Attached attached = new Attached();
attached.connector = ClientConnector.this;
try {
socketChannel.register(selector, OP_CONNECT, attached);
} catch (ClosedChannelException e) {
if (socketChannel.isOpen()) LOG.error("", e);
}
}
});
selector.wakeup();
success = true;
return socketChannel;
} finally {
if (!success) {
try {
try {
socketChannel.socket().close();
} catch (Exception e) {
LOG.error("", e);
}
socketChannel.close();
} catch (IOException e) {
LOG.error("", e);
}
}
}
}
private ClientConnector(@NotNull Details details) {
super("TCP-ClientConnector-" + details.localIdentifier());
this.details = details;
}