Java ServerSocketChannel.close方法代码示例

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
/**
 * Stop the server.
 */
@Override
public void stop() {
	try{
		this_mon.enter();

   for (int i=0;i<server_channels.size();i++){
     try {
   	  ServerSocketChannel	server_channel = (ServerSocketChannel)server_channels.get(i);

   	  VirtualAcceptSelector.getSingleton().cancel( server_channel );

   	  server_channel.close();

     }
     catch( Throwable t ) {  Debug.out( t );  }
   }

   server_channels.clear();
	}finally{

		this_mon.exit();
	}
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
/**
 * Creates a NIO ServerSocketChannel, and gets the ServerSocket from
 * there. Then binds the obtained socket.
 * This fails on Windows with Oracle JDK1.6.0u33, if the passed InetAddress is a
 * IPv6 address. Works on Oracle JDK 1.7.
 */
private void bindNIOServerSocket(InetAddress inetAddr) throws IOException {
  while (true) {
    int port = HBaseTestingUtility.randomFreePort();
    InetSocketAddress addr = new InetSocketAddress(inetAddr, port);
    ServerSocketChannel channel = null;
    ServerSocket serverSocket = null;
    try {
      channel = ServerSocketChannel.open();
      serverSocket = channel.socket();
      serverSocket.bind(addr); // This does not work
      break;
    } catch (BindException ex) {
      //continue
    } finally {
      if (serverSocket != null) {
        serverSocket.close();
      }
      if (channel != null) {
        channel.close();
      }
    }  
  }
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
/**
 * {@inheritDoc}
 */
@Override
protected void close(ServerSocketChannel handle) throws Exception {
    SelectionKey key = handle.keyFor(selector);

    if (key != null) {
        key.cancel();
    }

    handle.close();
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
private void tryClose(ServerSocketChannel s) {
    try {
        s.close();
    } catch (IOException sse) {
        LOG.error("Error while closing server socket.", sse);
    }
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
@VisibleForTesting
ServerSocketChannel bindToPort() throws IOException {
    // Bind to the first available port in the range
    ServerSocketChannel channel = null;

    for (int port = ConnectionHandler.PORT_RANGE_START; port <= ConnectionHandler.PORT_RANGE_END; port++) {
        final InetSocketAddress tryAddress = new InetSocketAddress(InetAddress.getLocalHost(), port);


        try {
            channel = ServerSocketChannel.open();
            channel.socket().bind(tryAddress);
            channel.configureBlocking(false);
            break;
        } catch (final IOException ioe) {
            // Ignore, try next port
            logger.warn("Could not bind to {}, trying next port...", tryAddress);
            try {
                if (channel != null) channel.close();
            } catch (final IOException ignored) {
            }
        }
    }

    if (channel == null || !channel.socket().isBound()) {
        throw new IOException("No available port for the BitTorrent client!");
    }
    return channel;
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
public static SocketChannel launchWithSocketChannel(String className, String options[], String args[]) throws IOException {
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(new InetSocketAddress(0));
    InetSocketAddress isa = new InetSocketAddress(InetAddress.getLocalHost(),
                                                  ssc.socket().getLocalPort());
    SocketChannel sc1 = SocketChannel.open(isa);
    SocketChannel sc2 = ssc.accept();
    launch(className, options, args, Util.getFD(sc2));
    sc2.close();
    ssc.close();
    return sc1;
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
public static SocketChannel launchWithServerSocketChannel(String className, String options[], String args[])
    throws IOException
{
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(new InetSocketAddress(0));
    int port = ssc.socket().getLocalPort();
    launch(className, options, args, Util.getFD(ssc));
    ssc.close();
    InetSocketAddress isa = new InetSocketAddress(InetAddress.getLocalHost(), port);
    return SocketChannel.open(isa);
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
@Test
public void xferTest07() throws Exception { // for bug 5103988
    File source = File.createTempFile("source", null);
    source.deleteOnExit();

    FileChannel sourceChannel = new RandomAccessFile(source, "rw")
        .getChannel();
    sourceChannel.position(32000L)
        .write(ByteBuffer.wrap("The End".getBytes()));

    // The sink is a non-blocking socket channel
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(new InetSocketAddress(0));
    InetSocketAddress sa = new InetSocketAddress(
        InetAddress.getLocalHost(), ssc.socket().getLocalPort());
    SocketChannel sink = SocketChannel.open(sa);
    sink.configureBlocking(false);
    SocketChannel other = ssc.accept();

    long size = sourceChannel.size();

    // keep sending until congested
    long n;
    do {
        n = sourceChannel.transferTo(0, size, sink);
    } while (n > 0);

    sourceChannel.close();
    sink.close();
    other.close();
    ssc.close();
    source.delete();
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
public static void main(String[] args) throws Exception {
    ServerSocketChannel ssc = ServerSocketChannel.open();
    ssc.socket().bind(new InetSocketAddress(0));

    InetAddress lh = InetAddress.getLocalHost();
    final SocketChannel sc = SocketChannel.open();
    final InetSocketAddress isa =
        new InetSocketAddress(lh, ssc.socket().getLocalPort());

    // establish connection in another thread
    Runnable connector =
        new Runnable() {
            public void run() {
                try {
                    sc.connect(isa);
                } catch (IOException ioe) {
                    ioe.printStackTrace();
                }
            }
        };
    Thread thr = new Thread(connector);
    thr.start();

    // wait for connect to be established and for thread to
    // terminate
    do {
        try {
            thr.join();
        } catch (InterruptedException x) { }
    } while (thr.isAlive());

    // check connection is established
    if (!sc.isConnected()) {
        throw new RuntimeException("SocketChannel not connected");
    }

    // close channel - this triggered the bug as it attempted to signal
    // a thread that no longer exists
    sc.close();

    // clean-up
    ssc.accept().close();
    ssc.close();
}
 

import java.nio.channels.ServerSocketChannel; //导入方法依赖的package包/类
@Override
public int
getBindablePort(
	int	prefer_port )

	throws IOException
{
	final int tries = 1024;

	Random random = new Random();

	for ( int i=1;i<=tries;i++ ){

		int port;

		if ( i == 1 && prefer_port != 0 ){

			port = prefer_port;

		}else{

			port = i==tries?0:random.nextInt(20000) + 40000;
		}

		ServerSocketChannel ssc = null;

		try{
			ssc = ServerSocketChannel.open();

			ssc.socket().setReuseAddress( true );

			bind( ssc, null, port );

			port = ssc.socket().getLocalPort();

			ssc.close();

			return( port );

		}catch( Throwable e ){

			if ( ssc != null ){

				try{
					ssc.close();

				}catch( Throwable f ){

					Debug.printStackTrace(e);
				}

				ssc = null;
			}
		}
	}

	throw( new IOException( "No bindable ports found" ));
}