public void close() {
if (!real_socket.isClosed()) {
synchronized (sinc_send_socket) {
byte[] to_fin = new byte[Pacote.head_payload];
OperacoesBinarias.inserirCabecalho(to_fin, 0, 0, false, false, false, true, 0, 0);
DatagramPacket packet;
if (is_server) {
packet = new DatagramPacket(to_fin, Pacote.head_payload, client_adress, client_port);
} else {
packet = new DatagramPacket(to_fin, Pacote.head_payload, server_adress, server_port);
}
try {
for (int i = 0; i < max_win && !real_socket.isClosed(); i++) {
real_socket.send(packet);
}
} catch (IOException e) {
System.out.println("Problema com socket interno");
System.out.println("Fechando conexão...");
close.set(true);
e.printStackTrace();
}
}
close.set(true);
real_socket.close();
}
}
/** Accept incoming events and processes them. */
@Override
public void run() {
while (isActive()) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
try {
final byte[] buf = new byte[maxBufferSize];
final DatagramPacket packet = new DatagramPacket(buf, buf.length);
datagramSocket.receive(packet);
final ByteArrayInputStream bais =
new ByteArrayInputStream(packet.getData(), packet.getOffset(), packet.getLength());
logEventInput.logEvents(logEventInput.wrapStream(bais), this);
} catch (final OptionalDataException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("OptionalDataException eof=" + e.eof + " length=" + e.length, e);
} catch (final EOFException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.info("EOF encountered");
} catch (final IOException e) {
if (datagramSocket.isClosed()) {
// OK we're done.
return;
}
logger.error("Exception encountered on accept. Ignoring. Stack Trace :", e);
}
}
}
/**
* Closes the socket and stops the listener thread.
*
* @throws IOException
*/
public void close() throws IOException {
boolean interrupted = false;
WorkerTask l = listener;
if (l != null) {
l.terminate();
l.interrupt();
if (socketTimeout > 0) {
try {
l.join();
} catch (InterruptedException ex) {
interrupted = true;
logger.warn(ex);
}
}
listener = null;
}
DatagramSocket closingSocket = socket;
if ((closingSocket != null) && (!closingSocket.isClosed())) {
closingSocket.close();
}
socket = null;
if (interrupted) {
Thread.currentThread().interrupt();
}
}
// kill it with fire!
public boolean close() {
if (!socket.isClosed() || socket.isConnected()) {
socket.close();
return true;
}
return false;
}
public static void main(String[] args) {
DatagramSocket socket = null;
try {
socket = new DatagramSocket(PORT);
while (true) {
DatagramPacket receivePacket = new DatagramPacket(new byte[256], 256);
socket.receive(receivePacket);
String date = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss").format(new Date());
byte[] sendData = date.getBytes(StandardCharsets.UTF_8);
DatagramPacket sendPacket =
new DatagramPacket(
sendData,
sendData.length,
new InetSocketAddress(receivePacket.getAddress(), receivePacket.getPort()));
socket.send(sendPacket);
}
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
if (socket != null && socket.isClosed() == false) {
socket.close();
}
}
}
@Override
public void run() {
try {
socket = new DatagramSocket(port);
while (!isClosed) {
if (socket.isClosed()) return;
byte[] buf = new byte[256];
// receive request
DatagramPacket packet = new DatagramPacket(buf, buf.length);
socket.receive(packet);
ByteArrayInputStream bis = new ByteArrayInputStream(buf, 0, packet.getLength());
BufferedReader in = new BufferedReader(new InputStreamReader(bis));
String msg;
while ((msg = in.readLine()) != null) {
logger.debug("Read from socket: " + msg);
content.add(msg.trim());
}
in.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
@Override
public void close() throws ChannelException {
if (!socket.isClosed()) {
socket.close();
emitChannelClosed();
}
}
public void run() {
printWelcome();
while (!welcomingSocket.isClosed()) {
while (!canCreateNewWorker()) {
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
continue;
}
}
try {
DatagramPacket pkt = new DatagramPacket(new byte[EXPECTED_REQ_SIZE], EXPECTED_REQ_SIZE);
welcomingSocket.receive(pkt); // Blocks!
RequestPacket reqPkt = new RequestPacket(pkt);
if (reqPkt.isCorrupted()) {
continue;
}
ConnectionHandler conn = new ConnectionHandler(strategy, reqPkt, plp, pep, rngSeed, maxN);
Thread connectionHandler = new Thread(conn);
connectionHandler.start();
workers.add(new Worker(connectionHandler, conn, System.currentTimeMillis()));
} catch (IOException e) {
continue;
}
}
}
public void run() {
while (_datagramSocket != null && _datagramSocket == _socket && !_datagramSocket.isClosed()) {
try {
DatagramPacket packet = new DatagramPacket(new byte[MAX_PACKET_SIZE], MAX_PACKET_SIZE);
_datagramSocket.receive(packet);
DnsMessage answer = new DnsMessage();
answer.decode(ByteBuffer.wrap(packet.getData()));
MsgContainer msgContainer;
synchronized (_queries) {
msgContainer = _queries.get(answer.getHeaderSection().getId());
}
if (msgContainer != null) {
synchronized (msgContainer.getQuery()) {
msgContainer.setAnswer(answer);
msgContainer.getQuery().notify();
}
} else LOG.warn("Drop DNS Answser {}, as can not found a query with same ID", answer);
} catch (IOException e) {
close();
}
}
close();
LOG.debug("DNS acceptor done");
}
// start up the server
public void start() {
DatagramSocket socket = null;
try {
// create a datagram socket, bind to port port. See
// http://docs.oracle.com/javase/tutorial/networking/datagrams/ for
// details.
socket = new DatagramSocket(port);
// receive packets in an infinite loop
while (true) {
// create an empty UDP packet
byte[] buf = new byte[Server.MAX_PACKET_SIZE];
DatagramPacket packet = new DatagramPacket(buf, buf.length);
// call receive (this will poulate the packet with the received
// data, and the other endpoint's info)
socket.receive(packet);
// start up a worker thread to process the packet (and pass it
// the socket, too, in case the
// worker thread wants to respond)
WorkerThread t = new WorkerThread(packet, socket);
t.start();
}
} catch (IOException e) {
// we jump out here if there's an error, or if the worker thread (or
// someone else) closed the socket
e.printStackTrace();
} finally {
if (socket != null && !socket.isClosed()) socket.close();
}
}
public void run() {
System.err.println("Sender start");
while (!socket.isClosed()) {
try {
DatagramPacket packet = queue.take();
if (Math.random() < 0.95) socket.send(packet);
} catch (IOException ex) {
System.out.println("Package was dropped because of IO exception");
ex.printStackTrace();
if (socket.isClosed()) break;
} catch (InterruptedException ex) {
continue;
}
}
System.err.println("Sender stop");
/* No cleanup here, either */
}
/** Close the server. */
@Override
public void close() {
if (socket != null) {
if (!socket.isClosed()) {
socket.close();
socket = null;
LOGGER.info("Server is stopped");
}
}
}
public synchronized DatagramSocket getDatagramSocket() throws SocketException {
if (_socket == null || _socket.isClosed()) {
_socket = new DatagramSocket(getPort(), getHostAddr());
_socket.setSoTimeout(_timeout); // FIXME
LOG.debug(
"Create the new datagram socket {} for DNS connector", _socket.getLocalSocketAddress());
_acceptor = new Acceptor();
new Thread(_acceptor, "DNS acceptor").start();
}
return _socket;
}
public void closeConnection() {
try {
if (pingAliveSocket != null) {
if (!pingAliveSocket.isClosed()) {
pingAliveSocket.close();
}
}
if (clientSocket != null) {
if (!clientSocket.isClosed()) {
outData = "CONN_CLOSE".getBytes("UTF-8");
outPacket = new DatagramPacket(outData, outData.length, srvAddr, serverPort);
clientSocket.send(outPacket);
clientSocket.close();
}
}
} catch (Exception e) {
if (DEBUG) {
e.printStackTrace();
Log.d(TAG, "Closure of connection failed! // SERVER MIGHT BE ALREADY UNREACHABLE!");
}
}
}
/**
* A synchronized function for closing the UPD socket. It prevents the situation in which both the
* listener thread and the GUI thread close the socket at the same time.
*/
private synchronized void closeSocket() {
if (ds != null) {
if (ds.isConnected()) {
ds.disconnect();
}
if (!ds.isClosed()) {
ds.close();
}
ds = null;
if (Debug.SHOW_PROXY_VEHICLE_DEBUG_MSG) {
System.err.println("The UDP socket is closed.");
}
}
}
protected boolean func_72604_a(DatagramSocket p_72604_1_, boolean p_72604_2_) {
this.func_72607_a("closeSocket: " + p_72604_1_);
if (null == p_72604_1_) {
return false;
} else {
boolean var3 = false;
if (!p_72604_1_.isClosed()) {
p_72604_1_.close();
var3 = true;
}
if (p_72604_2_) {
this.field_72616_e.remove(p_72604_1_);
}
return var3;
}
}
/** Closes the specified DatagramSocket */
protected boolean closeSocket(DatagramSocket par1DatagramSocket, boolean par2) {
logDebug("closeSocket: " + par1DatagramSocket);
if (null == par1DatagramSocket) {
return false;
} else {
boolean var3 = false;
if (!par1DatagramSocket.isClosed()) {
par1DatagramSocket.close();
var3 = true;
}
if (par2) {
socketList.remove(par1DatagramSocket);
}
return var3;
}
}
@Override
public void run() {
// TODO Para leer mensajes enviados por el servidor
while (!udpSocket.isClosed()) {
DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
try {
udpSocket.receive(receivePacket);
byte[] c;
c = Arrays.copyOf(receivePacket.getData(), receivePacket.getLength());
String id = receivePacket.getAddress().toString() + ":" + receivePacket.getPort();
this.onMessageReceived(c, id.replace("/", ""));
} catch (IOException e) {
e.printStackTrace();
}
}
}
/** Sends the message to a recipient */
private void sendMessage(
DatagramSocket socket,
String label,
InetSocketAddress to,
NameServicesChannelMessage message) {
if (isSameSocketAddress(socket, to))
_logger.info("{} sending message. to=self, message={}", label, message);
else _logger.info("{} sending message. to={}, message={}", label, to, message);
if (socket == null) {
_logger.info("{} is not available yet; ignoring send request.", label);
return;
}
// convert into bytes
String json = Serialisation.serialise(message);
byte[] bytes = json.getBytes(UTF8Charset.instance());
DatagramPacket packet = new DatagramPacket(bytes, bytes.length);
packet.setSocketAddress(to);
try {
socket.send(packet);
if (to.getAddress().isMulticastAddress()) {
s_multicastOutData.addAndGet(bytes.length);
s_multicastOutOps.incrementAndGet();
} else {
s_unicastOutData.addAndGet(bytes.length);
s_unicastOutOps.incrementAndGet();
}
} catch (IOException exc) {
if (!_enabled) return;
if (socket.isClosed())
_logger.info(s_sendSocketLabel + " send() ignored as socket is being recycled.");
else _logger.warn(s_sendSocketLabel + " send() failed. ", exc);
}
} // (method)
@Override
void send(byte[] data) {
byte[] protocolAndData = new byte[data.length + 3];
System.arraycopy(data, 0, protocolAndData, 2, data.length);
protocolAndData[0] = (byte) 0;
protocolAndData[1] = (byte) 0;
protocolAndData[protocolAndData.length - 1] = (byte) 255;
if (log) {
System.out.println(
this.id
+ ", universe "
+ universe
+ " at IP "
+ this.ipStr
+ ":"
+ bytesToHex(protocolAndData, protocolAndData.length));
}
synchronized (this) {
if (socket == null || socket.isClosed()) {
try {
socket = new DatagramSocket(port);
DatagramPacket packet =
new DatagramPacket(protocolAndData, protocolAndData.length, ip, port);
socket.send(packet);
} catch (SocketException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
public void run() {
DatagramSocket socketCopy = socket;
if (socketCopy != null) {
try {
socketCopy.setSoTimeout(getSocketTimeout());
if (receiveBufferSize > 0) {
socketCopy.setReceiveBufferSize(Math.max(receiveBufferSize, maxInboundMessageSize));
}
if (logger.isDebugEnabled()) {
logger.debug(
"UDP receive buffer size for socket "
+ getAddress()
+ " is set to: "
+ socketCopy.getReceiveBufferSize());
}
} catch (SocketException ex) {
logger.error(ex);
setSocketTimeout(0);
}
}
while (!stop) {
DatagramPacket packet =
new DatagramPacket(buf, buf.length, udpAddress.getInetAddress(), udpAddress.getPort());
try {
socketCopy = socket;
try {
if (socketCopy == null) {
stop = true;
continue;
}
socketCopy.receive(packet);
} catch (InterruptedIOException iiox) {
if (iiox.bytesTransferred <= 0) {
continue;
}
}
if (logger.isDebugEnabled()) {
logger.debug(
"Received message from "
+ packet.getAddress()
+ "/"
+ packet.getPort()
+ " with length "
+ packet.getLength()
+ ": "
+ new OctetString(packet.getData(), 0, packet.getLength()).toHexString());
}
ByteBuffer bis;
// If messages are processed asynchronously (i.e. multi-threaded)
// then we have to copy the buffer's content here!
if (isAsyncMsgProcessingSupported()) {
byte[] bytes = new byte[packet.getLength()];
System.arraycopy(packet.getData(), 0, bytes, 0, bytes.length);
bis = ByteBuffer.wrap(bytes);
} else {
bis = ByteBuffer.wrap(packet.getData());
}
TransportStateReference stateReference =
new TransportStateReference(
DefaultUdpTransportMapping.this,
udpAddress,
null,
SecurityLevel.undefined,
SecurityLevel.undefined,
false,
socketCopy);
fireProcessMessage(
new UdpAddress(packet.getAddress(), packet.getPort()), bis, stateReference);
} catch (SocketTimeoutException stex) {
// ignore
} catch (PortUnreachableException purex) {
synchronized (DefaultUdpTransportMapping.this) {
listener = null;
}
logger.error(purex);
if (logger.isDebugEnabled()) {
purex.printStackTrace();
}
if (SNMP4JSettings.isFowardRuntimeExceptions()) {
throw new RuntimeException(purex);
}
break;
} catch (SocketException soex) {
if (!stop) {
logger.error(
"Socket for transport mapping " + toString() + " error: " + soex.getMessage(),
soex);
}
if (SNMP4JSettings.isFowardRuntimeExceptions()) {
stop = true;
throw new RuntimeException(soex);
}
} catch (IOException iox) {
logger.warn(iox);
if (logger.isDebugEnabled()) {
iox.printStackTrace();
}
if (SNMP4JSettings.isFowardRuntimeExceptions()) {
throw new RuntimeException(iox);
}
}
}
synchronized (DefaultUdpTransportMapping.this) {
listener = null;
stop = true;
DatagramSocket closingSocket = socket;
if ((closingSocket != null) && (!closingSocket.isClosed())) {
closingSocket.close();
}
}
if (logger.isDebugEnabled()) {
logger.debug("Worker task stopped:" + getClass().getName());
}
}
// start up the server
public void start() {
DatagramSocket socket = null;
try {
InetSocketAddress serverSocketAddress = new InetSocketAddress(serverAddress, serverPort);
// create a datagram socket, let the OS bind to an ephemeral UDP
// port. See
// http://docs.oracle.com/javase/tutorial/networking/datagrams/ for
// details.
socket = new DatagramSocket();
// send "REGISTER" to the server
//
// create an UDP packet that we'll send to the server
String command = "REGISTER";
DatagramPacket txPacket =
new DatagramPacket(command.getBytes(), command.length(), serverSocketAddress);
// send the packet through the socket to the server
socket.send(txPacket);
// receive the server's response
//
// create an empty UDP packet
byte[] buf = new byte[Server.MAX_PACKET_SIZE];
DatagramPacket rxPacket = new DatagramPacket(buf, buf.length);
// call receive (this will poulate the packet with the received
// data, and the other endpoint's info)
socket.receive(rxPacket);
// print the payload
String payload = new String(rxPacket.getData(), 0, rxPacket.getLength());
System.out.println(payload);
// send "SEND Hello everybody!" to the server
//
command =
"SEND Hello everybody! The time is "
+ new SimpleDateFormat("HH:mm:ss").format(new Date());
txPacket = new DatagramPacket(command.getBytes(), command.length(), serverSocketAddress);
socket.send(txPacket);
// receive the server's response
//
socket.receive(rxPacket);
// print the payload
payload = new String(rxPacket.getData(), 0, rxPacket.getLength());
System.out.println(payload);
// and then keep on receiving packets in an infinite loop
while (true) {
socket.receive(rxPacket);
payload = new String(rxPacket.getData(), 0, rxPacket.getLength());
System.out.println(payload);
}
} catch (IOException e) {
// we jump out here if there's an error
e.printStackTrace();
} finally {
// close the socket
if (socket != null && !socket.isClosed()) socket.close();
}
}
public List<MsgEvent> discover() {
List<MsgEvent> discoveryList = null;
// Find the server using UDP broadcast
try {
discoveryList = new ArrayList<MsgEvent>();
// Open a random port to send the package
c = new DatagramSocket();
c.setBroadcast(true);
byte[] sendData = "DISCOVER_FUIFSERVER_REQUEST".getBytes();
// Try the 255.255.255.255 first
try {
DatagramPacket sendPacket =
new DatagramPacket(
sendData, sendData.length, InetAddress.getByName("255.255.255.255"), 32005);
c.send(sendPacket);
// System.out.println(getClass().getName() + ">>> Request packet sent to: 255.255.255.255
// (DEFAULT)");
} catch (Exception e) {
}
// Broadcast the message over all the network interfaces
Enumeration interfaces = NetworkInterface.getNetworkInterfaces();
while (interfaces.hasMoreElements()) {
NetworkInterface networkInterface = (NetworkInterface) interfaces.nextElement();
if (networkInterface.isLoopback() || !networkInterface.isUp()) {
continue; // Don't want to broadcast to the loopback interface
}
for (InterfaceAddress interfaceAddress : networkInterface.getInterfaceAddresses()) {
InetAddress broadcast = interfaceAddress.getBroadcast();
if (broadcast == null) {
continue;
}
// Send the broadcast package!
try {
DatagramPacket sendPacket =
new DatagramPacket(sendData, sendData.length, broadcast, 32005);
c.send(sendPacket);
} catch (Exception e) {
}
// System.out.println(getClass().getName() + ">>> Request packet sent to: " +
// broadcast.getHostAddress() + "; Interface: " + networkInterface.getDisplayName());
}
}
// System.out.println(getClass().getName() + ">>> Done looping over all network interfaces.
// Now waiting for a reply!");
// Wait for a response
while (!c.isClosed()) {
try {
byte[] recvBuf = new byte[15000];
DatagramPacket receivePacket = new DatagramPacket(recvBuf, recvBuf.length);
c.receive(receivePacket);
// We have a response
// System.out.println(getClass().getName() + ">>> Broadcast response from server: " +
// receivePacket.getAddress().getHostAddress());
// Check if the message is correct
// System.out.println(new String(receivePacket.getData()));
String json = new String(receivePacket.getData()).trim();
// String response = "region=region0,agent=agent0,recaddr=" +
// packet.getAddress().getHostAddress();
try {
MsgEvent me = gson.fromJson(json, MsgEvent.class);
if (me != null) {
if (!me.getParam("clientip").equals(receivePacket.getAddress().getHostAddress())) {
// System.out.println("SAME HOST");
// System.out.println(me.getParamsString() +
// receivePacket.getAddress().getHostAddress());
me.setParam("serverip", receivePacket.getAddress().getHostAddress());
discoveryList.add(me);
}
}
} catch (Exception ex) {
System.out.println("in loop 0" + ex.toString());
}
} catch (SocketException ex) {
// eat message.. this should happen
} catch (Exception ex) {
System.out.println("in loop 1" + ex.toString());
}
}
// Close the port!
// c.close();
// System.out.println("CODY : Dicsicer Client Worker Engned!");
} catch (Exception ex) {
System.out.println("while not closed: " + ex.toString());
}
return discoveryList;
}
private void close() {
if (_datagramSocket != null && !_datagramSocket.isClosed()) _datagramSocket.close();
_datagramSocket = null;
}