@JSFunction
public static Object connect(Context cx, Scriptable thisObj, Object[] args, Function func) {
final TCPImpl tcp = (TCPImpl) thisObj;
String host = stringArg(args, 0);
int port = intArg(args, 1);
boolean success = false;
SocketChannel newChannel = null;
try {
InetSocketAddress targetAddress = new InetSocketAddress(host, port);
NetworkPolicy netPolicy = tcp.getNetworkPolicy();
if ((netPolicy != null) && !netPolicy.allowConnection(targetAddress)) {
log.debug("Disallowed connection to {} due to network policy", targetAddress);
setErrno(Constants.EINVAL);
return null;
}
if (log.isDebugEnabled()) {
log.debug("Client connecting to {}:{}", host, port);
}
clearErrno();
if (tcp.boundAddress == null) {
newChannel = SocketChannel.open();
} else {
newChannel = SocketChannel.open(tcp.boundAddress);
}
tcp.clientChannel = newChannel;
getRunner().registerCloseable(newChannel);
tcp.clientInit();
tcp.clientChannel.connect(targetAddress);
tcp.selKey =
tcp.clientChannel.register(
getRunner().getSelector(),
SelectionKey.OP_CONNECT,
new SelectorHandler() {
@Override
public void selected(SelectionKey key) {
tcp.clientSelected(key);
}
});
tcp.pendingConnect = (PendingOp) cx.newObject(thisObj, PendingOp.CLASS_NAME);
success = true;
return tcp.pendingConnect;
} catch (IOException ioe) {
log.debug("Error on connect: {}", ioe);
setErrno(Constants.EIO);
return null;
} finally {
if (!success && (newChannel != null)) {
getRunner().unregisterCloseable(newChannel);
try {
newChannel.close();
} catch (IOException ioe) {
log.debug("Error closing channel that might be closed: {}", ioe);
}
}
}
}
