private static void startSender() {
Thread t =
new Thread() {
public void run() {
try {
DatagramChannel channel = DatagramChannel.open();
channel.configureBlocking(false);
// channel.socket().connect(new InetSocketAddress(InetAddress.getLocalHost(), 1000));
ByteBuffer buffer = ByteBuffer.allocate(512 * 1000);
byte[] buf;
long time = JGN.getNanoTime();
for (int i = 0; i < 1000; i++) {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
DataOutputStream dos = new DataOutputStream(baos);
byte[] textBytes = ("Testing " + (i + 1)).getBytes();
dos.writeInt(textBytes.length);
dos.write(textBytes);
buf = baos.toByteArray();
baos.close();
buffer.clear();
buffer.put(buf);
buffer.flip();
// channel.write(buffer);
channel.send(buffer, new InetSocketAddress(InetAddress.getLocalHost(), 1000));
Thread.sleep(5);
}
System.out.println("Took " + ((JGN.getNanoTime() - time) / 1000000) + "ms to send.");
} catch (Throwable t) {
t.printStackTrace();
}
}
};
t.start();
}
// Test the connected case to see if PUE is thrown
public static void test2() throws Exception {
setup();
server.configureBlocking(true);
server.connect(isa);
server.configureBlocking(false);
outBuf.rewind();
server.write(outBuf);
server.receive(inBuf);
client.close();
Thread.sleep(2000);
outBuf.rewind();
try {
server.write(outBuf);
Thread.sleep(2000);
inBuf.clear();
server.read(inBuf);
if (onSolarisOrLinux()) throw new Exception("Expected PUE not thrown");
} catch (PortUnreachableException pue) {
System.err.println("received PUE");
}
server.close();
}
void start() {
logger.log(Level.FINEST, "Starting TCP node");
please_stop = false;
node_thread = new SelectThread();
node_thread.setDaemon(true);
node_thread.start();
logger.log(Level.FINEST, "Started TCP node");
}
/** Start the network listening thread. */
void start() {
this.running = true;
Thread thread = new Thread(this, "IceConnector@" + hashCode());
thread.setDaemon(true);
thread.start();
}
public static void main(String[] args) throws Exception {
TypeServer ts = new TypeServer();
ts.port = Integer.parseInt(args[0]);
Thread t = new Thread(ts);
t.start();
System.out.println("Type server ready...Type CTRL-D to exit");
while (System.in.read() > 0) ;
ts.stopServer();
t.join();
}
private static void startReceiver() {
Thread t =
new Thread() {
public void run() {
try {
DatagramChannel server = DatagramChannel.open();
server.configureBlocking(false);
server.socket().bind(new InetSocketAddress(InetAddress.getLocalHost(), 1000));
// Selector selector = Selector.open();
// server.register(selector, SelectionKey.OP_READ);
ByteBuffer buffer = ByteBuffer.allocate(512 * 1000);
byte[] buf = new byte[512 * 1000];
long time = 0;
while (true) {
Thread.sleep(1);
SocketAddress address = server.receive(buffer);
if (address != null) {
int len = buffer.position();
buffer.rewind();
buffer.get(buf, 0, len);
buffer.clear();
ByteArrayInputStream bais = new ByteArrayInputStream(buf, 0, len);
DataInputStream dis = new DataInputStream(bais);
int bytesLength;
byte[] bytes;
int packets = 0;
try {
while ((bytesLength = dis.readInt()) > -1) {
dis.read(bytes = new byte[bytesLength]);
packets++;
String s = new String(bytes);
if (s.equals("Testing 1000")) {
System.out.println(
"Took "
+ ((JGN.getNanoTime() - time) / 1000000)
+ "ms to receive "
+ packets
+ " packets.");
System.exit(0);
}
}
} catch (EOFException exc) {
// System.out.println("End of stream reached!");
}
bais.close();
}
}
} catch (Throwable t) {
t.printStackTrace();
}
}
};
t.start();
}
/*
* CancelledKeyException is the failure symptom of 4729342
* NOTE: The failure is timing dependent and is not always
* seen immediately when the bug is present.
*/
public static void main(String[] args) throws Exception {
InetAddress lh = InetAddress.getLocalHost();
isa = new InetSocketAddress(lh, TEST_PORT);
selector = Selector.open();
ssc = ServerSocketChannel.open();
// Create and start a selector in a separate thread.
new Thread(
new Runnable() {
public void run() {
try {
ssc.configureBlocking(false);
ssc.socket().bind(isa);
sk = ssc.register(selector, SelectionKey.OP_ACCEPT);
selector.select();
} catch (IOException e) {
System.err.println("error in selecting thread");
e.printStackTrace();
}
}
})
.start();
// Wait for above thread to get to select() before we call close.
Thread.sleep(3000);
// Try to close. This should wakeup select.
new Thread(
new Runnable() {
public void run() {
try {
SocketChannel sc = SocketChannel.open();
sc.connect(isa);
ssc.close();
sk.cancel();
sc.close();
} catch (IOException e) {
System.err.println("error in closing thread");
System.err.println(e);
}
}
})
.start();
// Wait for select() to be awakened, which should be done by close.
Thread.sleep(3000);
selector.wakeup();
selector.close();
}
/** {@inheritDoc} */
@Override
protected void body() throws InterruptedException, IgniteInterruptedCheckedException {
if (log.isDebugEnabled()) log.debug("GC worker started.");
File workTokDir = tokDir.getParentFile();
assert workTokDir != null;
boolean lastRunNeeded = true;
while (true) {
try {
// Sleep only if not cancelled.
if (lastRunNeeded) Thread.sleep(GC_FREQ);
} catch (InterruptedException ignored) {
// No-op.
}
if (log.isDebugEnabled()) log.debug("Starting GC iteration.");
cleanupResources(workTokDir);
// Process spaces created by this endpoint.
if (log.isDebugEnabled()) log.debug("Processing local spaces.");
for (IpcSharedMemoryClientEndpoint e : endpoints) {
if (log.isDebugEnabled()) log.debug("Processing endpoint: " + e);
if (!e.checkOtherPartyAlive()) {
endpoints.remove(e);
if (log.isDebugEnabled()) log.debug("Removed endpoint: " + e);
}
}
if (isCancelled()) {
if (lastRunNeeded) {
lastRunNeeded = false;
// Clear interrupted status.
Thread.interrupted();
} else {
Thread.currentThread().interrupt();
break;
}
}
}
}
/** @param workTokDir Token directory (common for multiple nodes). */
private void cleanupResources(File workTokDir) {
RandomAccessFile lockFile = null;
FileLock lock = null;
try {
lockFile = new RandomAccessFile(new File(workTokDir, LOCK_FILE_NAME), "rw");
lock = lockFile.getChannel().lock();
if (lock != null) processTokenDirectory(workTokDir);
else if (log.isDebugEnabled())
log.debug(
"Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
} catch (OverlappingFileLockException ignored) {
if (log.isDebugEnabled())
log.debug(
"Token directory is being processed concurrently: " + workTokDir.getAbsolutePath());
} catch (FileLockInterruptionException ignored) {
Thread.currentThread().interrupt();
} catch (IOException e) {
U.error(log, "Failed to process directory: " + workTokDir.getAbsolutePath(), e);
} finally {
U.releaseQuiet(lock);
U.closeQuiet(lockFile);
}
}
@Override
public void run() {
try {
while (true) {
this.selector.select(SELECT_MILLISECONDS);
if (Thread.interrupted()) break;
Iterator<SelectionKey> i = this.selector.selectedKeys().iterator();
while (i.hasNext()) {
SelectionKey key = i.next();
SelectableChannel channel = key.channel();
handleReadableChannel(key, channel);
handleWritableChannel(key, channel);
i.remove();
}
}
} catch (ClosedByInterruptException e) {
// User-requested interrupt, so clean up
} catch (IOException e) {
reportIOException(e);
}
for (Map.Entry<SelectableChannel, SelectableChannel> e : this.outputs.entrySet()) {
closeChannelAndReportException(e.getKey());
closeChannelAndReportException(e.getValue());
}
for (SelectableChannel c : this.outputBuffers.keySet()) closeChannelAndReportException(c);
}
void startServer(boolean newThread) throws Exception {
if (newThread) {
serverThread =
new Thread() {
public void run() {
try {
doServerSide();
} catch (Exception e) {
/*
* Our server thread just died.
*
* Release the client, if not active already...
*/
System.err.println("Server died...");
System.err.println(e);
serverReady = true;
serverException = e;
}
}
};
serverThread.start();
} else {
doServerSide();
}
}
/*
* Define the client side of the test.
*
* If the server prematurely exits, serverReady will be set to true
* to avoid infinite hangs.
*/
void doClientSide() throws Exception {
// create SSLEngine.
SSLEngine ssle = createSSLEngine(true);
/*
* Wait for server to get started.
*/
while (!serverReady) {
Thread.sleep(50);
}
// Create a non-blocking socket channel.
SocketChannel sc = SocketChannel.open();
sc.configureBlocking(false);
InetSocketAddress isa = new InetSocketAddress(InetAddress.getLocalHost(), serverPort);
sc.connect(isa);
// Complete connection.
while (!sc.finishConnect()) {
// waiting for the connection completed.
}
// handshaking
handshaking(ssle, sc, null);
// send out application data
deliver(ssle, sc);
// receive application data
receive(ssle, sc);
// close the socket channel.
sc.close();
}
/** 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);
}
}
}
}
/**
* Marks the end of an I/O operation that might block indefinitely.
*
* <p>This method should be invoked in tandem with the {@link #begin begin} method, using a
* <tt>try</tt> ... <tt>finally</tt> block as shown <a href="#be">above</a>, in order to
* implement asynchronous closing and interruption for this channel.
*
* @param completed <tt>true</tt> if, and only if, the I/O operation completed successfully, that
* is, had some effect that would be visible to the operation's invoker
* @throws AsynchronousCloseException If the channel was asynchronously closed
* @throws ClosedByInterruptException If the thread blocked in the I/O operation was interrupted
*/
protected final void end(boolean completed) throws AsynchronousCloseException {
blockedOn(null);
Thread interrupted = this.interrupted;
if (interrupted != null && interrupted == Thread.currentThread()) {
interrupted = null;
throw new ClosedByInterruptException();
}
if (!completed && !open) throw new AsynchronousCloseException();
}
void join() {
logger.log(Level.FINEST, "Joining selector thread");
try {
node_thread.join();
} catch (java.lang.InterruptedException ex) {
}
node_thread = null;
logger.log(Level.FINEST, "Selector thread joined");
}
/**
* @param log Logger.
* @param time Time.
* @param msg Message.
*/
private static void log0(@Nullable IgniteLogger log, long time, String msg) {
if (log != null) {
if (log.isDebugEnabled()) log.debug(msg);
else log.warning(msg);
} else
X.println(
String.format(
"[%s][%s]%s",
DEBUG_DATE_FMT.get().format(time), Thread.currentThread().getName(), msg));
}
public ShowComp() throws InterruptedException, IOException {
super("CONNECTED COMPUTERS");
int x = 0, d = 20;
mb = new JMenuBar();
File = new JMenu("File");
mb.add(File);
exit = new JMenuItem("Exit");
exit.addActionListener(this);
File.add(exit);
ta = new JTextArea();
ta.setBounds(20, 30, 315, 470);
ta.setEditable(false);
add(ta);
setJMenuBar(mb);
sel = new JLabel("The connected computers are..");
sel.setBounds(15, 5, 300, 30);
add(sel);
b1 = new JButton("<< BACK");
b1.setBounds(140, 510, 100, 30);
b1.setToolTipText("Back to main page");
b1.addActionListener(this);
add(b1);
setLayout(null);
while (x < 360) {
x = x + d;
setBounds(675, 50, x, 600);
this.show();
}
// setVisible(true);
String s = "192.168.0.", temp = null;
Printer printer = new Printer();
printer.start();
Connector connector = new Connector(printer);
connector.start();
LinkedList targets = new LinkedList();
for (int i = 1; i <= 255; i++) {
temp = s + Integer.toString(i);
Target t = new Target(temp);
targets.add(t);
connector.add(t);
}
Thread.sleep(2000);
connector.shutdown();
connector.join();
for (Iterator i = targets.iterator(); i.hasNext(); ) {
Target t = (Target) i.next();
if (!t.shown) t.show();
}
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}
/**
* Marks the beginning of an I/O operation that might block indefinitely.
*
* <p>This method should be invoked in tandem with the {@link #end end} method, using a
* <tt>try</tt> ... <tt>finally</tt> block as shown <a href="#be">above</a>, in order to
* implement asynchronous closing and interruption for this channel.
*/
protected final void begin() {
if (interruptor == null) {
interruptor =
new Interruptible() {
public void interrupt(Thread target) {
synchronized (closeLock) {
if (!open) return;
open = false;
interrupted = target;
try {
AbstractInterruptibleChannel.this.implCloseChannel();
} catch (IOException x) {
}
}
}
};
}
blockedOn(interruptor);
Thread me = Thread.currentThread();
if (me.isInterrupted()) interruptor.interrupt(me);
}
/** {@inheritDoc} */
@Override
public void close() {
closed = true;
U.closeQuiet(srvSock);
if (gcWorker != null) {
U.cancel(gcWorker);
// This method may be called from already interrupted thread.
// Need to ensure cleaning on close.
boolean interrupted = Thread.interrupted();
try {
U.join(gcWorker);
} catch (IgniteInterruptedCheckedException e) {
U.warn(log, "Interrupted when stopping GC worker.", e);
} finally {
if (interrupted) Thread.currentThread().interrupt();
}
}
}
static void test() throws Exception {
ServerSocketChannel ssc = null;
SocketChannel sc = null;
SocketChannel peer = null;
try {
ssc = ServerSocketChannel.open().bind(new InetSocketAddress(0));
// loopback connection
InetAddress lh = InetAddress.getLocalHost();
sc = SocketChannel.open(new InetSocketAddress(lh, ssc.socket().getLocalPort()));
peer = ssc.accept();
// peer sends message so that "sc" will be readable
int n = peer.write(ByteBuffer.wrap("Hello".getBytes()));
assert n > 0;
sc.configureBlocking(false);
Selector selector = Selector.open();
SelectionKey key = sc.register(selector, SelectionKey.OP_READ | SelectionKey.OP_WRITE);
boolean done = false;
int failCount = 0;
while (!done) {
int nSelected = selector.select();
if (nSelected > 0) {
if (nSelected > 1) throw new RuntimeException("More than one channel selected");
Set<SelectionKey> keys = selector.selectedKeys();
Iterator<SelectionKey> iterator = keys.iterator();
while (iterator.hasNext()) {
key = iterator.next();
iterator.remove();
if (key.isWritable()) {
failCount++;
if (failCount > 10) throw new RuntimeException("Test failed");
Thread.sleep(250);
}
if (key.isReadable()) {
done = true;
}
}
}
}
} finally {
if (peer != null) peer.close();
if (sc != null) sc.close();
if (ssc != null) ssc.close();
}
}
/*
* Primary constructor, used to drive remainder of the test.
*
* Fork off the other side, then do your work.
*/
LargePacket() throws Exception {
super("../../../../../etc");
if (separateServerThread) {
startServer(true);
startClient(false);
} else {
startClient(true);
startServer(false);
}
/*
* Wait for other side to close down.
*/
if (separateServerThread) {
serverThread.join();
} else {
clientThread.join();
}
/*
* When we get here, the test is pretty much over.
*
* If the main thread excepted, that propagates back
* immediately. If the other thread threw an exception, we
* should report back.
*/
if (serverException != null) {
System.out.print("Server Exception:");
throw serverException;
}
if (clientException != null) {
System.out.print("Client Exception:");
throw clientException;
}
}
public static void main(String args[]) throws Exception {
final int ENOUGH_SIZE = 1024;
final int SMALL_SIZE = 4;
boolean isBlocked = true;
int size = ENOUGH_SIZE;
if (args.length > 0) {
int opt = Integer.parseInt(args[0]);
switch (opt) {
case 1:
isBlocked = true;
size = ENOUGH_SIZE;
break;
case 2:
isBlocked = true;
size = SMALL_SIZE;
break;
case 3:
isBlocked = false;
size = ENOUGH_SIZE;
break;
case 4:
isBlocked = false;
size = SMALL_SIZE;
break;
}
}
DatagramChannel channel = DatagramChannel.open();
channel.configureBlocking(isBlocked);
ByteBuffer buffer = ByteBuffer.allocate(size);
DatagramSocket socket = channel.socket();
SocketAddress localAddr = new InetSocketAddress(8000);
socket.bind(localAddr);
while (true) {
System.out.println("开始接收数据报");
SocketAddress remoteAddr = channel.receive(buffer);
if (remoteAddr == null) {
System.out.println("没有接收到数据报");
} else {
buffer.flip();
System.out.println("接收到的数据报的大小为" + buffer.remaining());
}
Thread.sleep(500);
}
}
public static void main(String args[]) throws IOException {
if (args.length != 1) {
System.err.println("Usage: java LockingExample <input file>");
System.exit(0);
}
FileLock sharedLock = null;
FileLock exclusiveLock = null;
try {
RandomAccessFile raf = new RandomAccessFile(args[0], "rw");
// get the channel for the file
FileChannel channel = raf.getChannel();
System.out.println("trying to acquire lock ...");
// this locks the first half of the file - exclusive
exclusiveLock = channel.lock(0, raf.length() / 2, SHARED);
System.out.println("lock acquired ...");
/** Now modify the data . . . */
try {
// sleep for 10 seconds
Thread.sleep(10000);
} catch (InterruptedException ie) {
}
// release the lock
exclusiveLock.release();
System.out.println("lock released ...");
// this locks the second half of the file - shared
sharedLock = channel.lock(raf.length() / 2 + 1, raf.length(), SHARED);
/** Now read the data . . . */
// release the lock
sharedLock.release();
} catch (java.io.IOException ioe) {
System.err.println(ioe);
} finally {
if (exclusiveLock != null) exclusiveLock.release();
if (sharedLock != null) sharedLock.release();
}
}
/**
* Checks if address can be reached using one argument InetAddress.isReachable() version or ping
* command if failed.
*
* @param addr Address to check.
* @param reachTimeout Timeout for the check.
* @return {@code True} if address is reachable.
*/
public static boolean reachableByPing(InetAddress addr, int reachTimeout) {
try {
if (addr.isReachable(reachTimeout)) return true;
String cmd = String.format("ping -%s 1 %s", U.isWindows() ? "n" : "c", addr.getHostAddress());
Process myProc = Runtime.getRuntime().exec(cmd);
myProc.waitFor();
return myProc.exitValue() == 0;
} catch (IOException ignore) {
return false;
} catch (InterruptedException ignored) {
Thread.currentThread().interrupt();
return false;
}
}
protected void accept_loop() {
while (isRunning()) {
try {
SocketChannel client_channel = server_channel.accept();
last_accept_time = SystemTime.getCurrentTime();
client_channel.configureBlocking(false);
listener.newConnectionAccepted(server_channel, client_channel);
} catch (AsynchronousCloseException e) {
/* is thrown when stop() is called */
} catch (Throwable t) {
Debug.out(t);
try {
Thread.sleep(500);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
// package-private
int poll(int events, long timeout) throws IOException {
assert Thread.holdsLock(blockingLock()) && !isBlocking();
synchronized (readLock) {
int n = 0;
try {
begin();
synchronized (stateLock) {
if (!isOpen()) return 0;
readerThread = NativeThread.current();
}
n = Net.poll(fd, events, timeout);
} finally {
readerThread = 0;
end(n > 0);
}
return n;
}
}
void startClient(boolean newThread) throws Exception {
if (newThread) {
clientThread =
new Thread() {
public void run() {
try {
doClientSide();
} catch (Exception e) {
/*
* Our client thread just died.
*/
System.err.println("Client died...");
clientException = e;
}
}
};
clientThread.start();
} else {
doClientSide();
}
}
public static void startRDPServer() {
if (rdpServerStarted) return;
rdpServerStarted = true;
rdpServerThread = new Thread(rdpServer, "RDPServer");
retryThread = new Thread(new RetryThread(), "RDPRetry");
packetCallbackThread = new Thread(new PacketCallbackThread(), "RDPCallback");
if (Log.loggingNet) Log.net("static - starting rdpserver thread");
try {
selector = Selector.open();
} catch (Exception e) {
Log.exception("RDPServer caught exception opening selector", e);
System.exit(1);
}
rdpServerThread.setPriority(rdpServerThread.getPriority() + 2);
if (Log.loggingDebug)
Log.debug(
"RDPServer: starting rdpServerThread with priority " + rdpServerThread.getPriority());
rdpServerThread.start();
retryThread.start();
packetCallbackThread.start();
}
public static void main(String[] args) throws IOException {
ChannelRouter channelRouter =
new ChannelRouter(
new ExceptionListener<IOException>() {
@Override
public void exceptionThrown(IOException exception) {
exception.printStackTrace();
}
});
int port = Integer.parseInt(args[1]);
SocketChannel socketChannel;
if (args[0].equals("--server")) {
System.out.println("Server mode started; listening on port " + port);
ServerSocketChannel serverSocketChannel = ServerSocketChannel.open();
serverSocketChannel.socket().bind(new InetSocketAddress(port));
socketChannel = serverSocketChannel.accept();
System.out.println("Client connected");
serverSocketChannel.close();
} else {
String host = args[0];
System.out.println("Client mode started; connecting to " + host + " on port " + port);
socketChannel = SocketChannel.open(new InetSocketAddress(host, port));
System.out.println("Connected to server");
}
socketChannel.configureBlocking(false);
Pipe localToRemote = Pipe.open();
localToRemote.source().configureBlocking(false);
channelRouter.addRoute(localToRemote.source(), socketChannel);
final Pipe remoteToLocal = Pipe.open();
remoteToLocal.sink().configureBlocking(false);
channelRouter.addRoute(socketChannel, remoteToLocal.sink());
Thread channelRouterThread = new Thread(channelRouter, "ChannelRouter");
channelRouterThread.start();
Thread remoteReaderThread =
new Thread("RemoteReader") {
@Override
public void run() {
try {
// BufferedReader.readLine() blocks until an end-of-line is
// written, so make sure they get written by the main thread
InputStream temporaryInputStream = Channels.newInputStream(remoteToLocal.source());
BufferedReader in = new BufferedReader(new InputStreamReader(temporaryInputStream));
String line = in.readLine();
while (null != line) {
System.out.println(line);
line = in.readLine();
}
} catch (ClosedByInterruptException e) {
// The main thread wants us to close, so do nothing
} catch (IOException e) {
e.printStackTrace();
}
}
};
remoteReaderThread.start();
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
Writer temporaryWriter = new OutputStreamWriter(Channels.newOutputStream(localToRemote.sink()));
temporaryWriter = new BufferedWriter(temporaryWriter);
PrintWriter out = new PrintWriter(temporaryWriter, true);
System.out.println(
"Press end-of-file to terminate (Ctrl+Z on Windows, Ctrl+D on other platforms)");
String line = in.readLine();
while (null != line) {
// The end-of-line is required for BufferedReader.readLine() to
// return and this will automatically flush due to the auto-flush
// parameter on construction
out.println(line);
line = in.readLine();
}
remoteReaderThread.interrupt();
channelRouterThread.interrupt();
socketChannel.close();
}
public void run() {
// every second, go through all the packets that havent been
// ack'd
List<RDPConnection> conList = new LinkedList<RDPConnection>();
long lastCounterTime = System.currentTimeMillis();
while (true) {
try {
long startTime = System.currentTimeMillis();
long interval = startTime - lastCounterTime;
if (interval > 1000) {
if (Log.loggingNet) {
Log.net(
"RDPServer counters: activeChannelCalls "
+ activeChannelCalls
+ ", selectCalls "
+ selectCalls
+ ", transmits "
+ transmits
+ ", retransmits "
+ retransmits
+ " in "
+ interval
+ "ms");
}
activeChannelCalls = 0;
selectCalls = 0;
transmits = 0;
retransmits = 0;
lastCounterTime = startTime;
}
if (Log.loggingNet) Log.net("RDPServer.RETRY: startTime=" + startTime);
// go through all the rdpconnections and re-send any
// unacked packets
conList.clear();
lock.lock();
try {
// make a copy since the values() collection is
// backed by the map
Set<RDPConnection> conCol = RDPServer.getAllConnections();
if (conCol == null) {
throw new MVRuntimeException("values() returned null");
}
conList.addAll(conCol); // make non map backed copy
} finally {
lock.unlock();
}
Iterator<RDPConnection> iter = conList.iterator();
while (iter.hasNext()) {
RDPConnection con = iter.next();
long currentTime = System.currentTimeMillis();
// is the connection in CLOSE_WAIT
if (con.getState() == RDPConnection.CLOSE_WAIT) {
long closeTime = con.getCloseWaitTimer();
long elapsedTime = currentTime - closeTime;
Log.net(
"RDPRetryThread: con is in CLOSE_WAIT: elapsed close timer(ms)="
+ elapsedTime
+ ", waiting for 30seconds to elapse. con="
+ con);
if (elapsedTime > 30000) {
// close the connection
Log.net("RDPRetryThread: removing CLOSE_WAIT connection. con=" + con);
removeConnection(con);
} else {
Log.net(
"RDPRetryThread: time left on CLOSE_WAIT timer: "
+ (30000 - (currentTime - closeTime)));
}
// con.close();
continue;
}
if (Log.loggingNet)
Log.net(
"RDPServer.RETRY: resending expired packets "
+ con
+ " - current list size = "
+ con.unackListSize());
// see if we should send a null packet, but only if con is already open
if ((con.getState() == RDPConnection.OPEN)
&& ((currentTime - con.getLastNullPacketTime()) > 30000)) {
con.getLock().lock();
try {
RDPPacket nulPacket = RDPPacket.makeNulPacket();
con.sendPacketImmediate(nulPacket, false);
con.setLastNullPacketTime();
if (Log.loggingNet) Log.net("RDPServer.retry: sent nul packet: " + nulPacket);
} finally {
con.getLock().unlock();
}
} else {
if (Log.loggingNet)
Log.net(
"RDPServer.retry: sending nul packet in "
+ (30000 - (currentTime - con.getLastNullPacketTime())));
}
con.resend(
currentTime - resendTimerMS, // resend cutoff time
currentTime - resendTimeoutMS); // giveup time
}
long endTime = System.currentTimeMillis();
if (Log.loggingNet)
Log.net(
"RDPServer.RETRY: endTime=" + endTime + ", elapse(ms)=" + (endTime - startTime));
Thread.sleep(250);
} catch (Exception e) {
Log.exception("RDPServer.RetryThread.run caught exception", e);
}
}
}