/**
* Closes this datagram socket.
*
* <p>Any thread currently blocked in {@link #receive} upon this socket will throw a {@link
* SocketException}.
*
* <p>If this socket has an associated channel then the channel is closed as well.
*
* @revised 1.4
* @spec JSR-51
*/
public void close() {
synchronized (closeLock) {
if (isClosed()) return;
impl.close();
closed = true;
}
}
@Override
protected void finalize() throws Throwable {
try {
if (guard != null) {
guard.warnIfOpen();
}
close();
} finally {
super.finalize();
}
}
/**
* Disconnects the socket. If the socket is closed or not connected, then this method has no
* effect.
*
* @see #connect
*/
public void disconnect() {
synchronized (this) {
if (isClosed()) return;
if (connectState == ST_CONNECTED) {
impl.disconnect();
}
connectedAddress = null;
connectedPort = -1;
connectState = ST_NOT_CONNECTED;
}
}
void createImpl() throws SocketException {
if (impl == null) {
if (factory != null) {
impl = factory.createDatagramSocketImpl();
checkOldImpl();
} else {
boolean isMulticast = (this instanceof MulticastSocket) ? true : false;
impl = DefaultDatagramSocketImplFactory.createDatagramSocketImpl(isMulticast);
checkOldImpl();
}
}
// creates a udp socket
impl.create();
created = true;
}
@Override
public PacketWritestream write(Buffer data) {
datagramSocket.send(data, port, host, this);
return this;
}
