@JSConstructor
public static Object newTCPImpl(
Context cx, Object[] args, Function ctorObj, boolean inNewExpr) {
TCPImpl tcp = new TCPImpl();
tcp.ref();
return tcp;
}
@JSFunction
public static void close(Context cx, Scriptable thisObj, Object[] args, Function func) {
Function callback = functionArg(args, 0, false);
TCPImpl self = (TCPImpl) thisObj;
self.doClose(cx, callback);
}
@JSFunction
public static Object shutdown(Context cx, Scriptable thisObj, Object[] args, Function func) {
TCPImpl tcp = (TCPImpl) thisObj;
clearErrno();
QueuedWrite qw = (QueuedWrite) cx.newObject(thisObj, QueuedWrite.CLASS_NAME);
qw.shutdown = true;
tcp.offerWrite(qw, cx);
return qw;
}
@JSFunction
public static Object writeBuffer(Context cx, Scriptable thisObj, Object[] args, Function func) {
ensureArg(args, 0);
Buffer.BufferImpl buf = (Buffer.BufferImpl) args[0];
TCPImpl tcp = (TCPImpl) thisObj;
clearErrno();
QueuedWrite qw = (QueuedWrite) cx.newObject(thisObj, QueuedWrite.CLASS_NAME);
ByteBuffer bbuf = buf.getBuffer();
qw.initialize(bbuf);
tcp.byteCount += bbuf.remaining();
tcp.offerWrite(qw, cx);
return qw;
}
private void serverSelected(SelectionKey key) {
if (!key.isValid()) {
return;
}
if (log.isDebugEnabled()) {
log.debug("Server selected: a = {}", key.isAcceptable());
}
Context cx = Context.getCurrentContext();
if (key.isAcceptable()) {
SocketChannel child = null;
do {
try {
child = svrChannel.accept();
if (child != null) {
if (log.isDebugEnabled()) {
log.debug("Accepted new socket {}", child);
}
boolean success = false;
try {
getRunner().registerCloseable(child);
TCPImpl sock = (TCPImpl) cx.newObject(this, CLASS_NAME);
sock.initializeClient(child);
if (onConnection != null) {
onConnection.call(cx, onConnection, this, new Object[] {sock});
}
success = true;
} finally {
if (!success) {
getRunner().unregisterCloseable(child);
try {
child.close();
} catch (IOException ioe) {
log.debug("Error closing channel that might be closed: {}", ioe);
}
}
}
}
} catch (ClosedChannelException cce) {
log.debug("Server channel has been closed");
break;
} catch (IOException ioe) {
log.error("Error accepting a new socket: {}", ioe);
}
} while (child != null);
}
}
@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);
}
}
}
}