Examples with SocketChannel java.nio.channels.SocketChannel used on opensource projects

Example 76 with SocketChannel

use of java.nio.channels.SocketChannel in project robovm by robovm.

the class AbstractSelectableChannelTest method test_keyfor_LSelector.

/**
     * @tests AbstractSelectableChannel#keyFor(Selector)
     */
public void test_keyfor_LSelector() throws Exception {
    SocketChannel sc = SocketChannel.open();
    Object argObj = new Object();
    sc.configureBlocking(false);
    Selector acceptSelector = SelectorProvider.provider().openSelector();
    Selector acceptSelectorOther = SelectorProvider.provider().openSelector();
    SelectionKey acceptKey = sc.register(acceptSelector, SelectionKey.OP_READ, argObj);
    assertEquals(sc.keyFor(acceptSelector), acceptKey);
    SelectionKey acceptKeyObjNull = sc.register(acceptSelector, SelectionKey.OP_READ, null);
    assertSame(sc.keyFor(acceptSelector), acceptKeyObjNull);
    assertSame(acceptKeyObjNull, acceptKey);
    SelectionKey acceptKeyOther = sc.register(acceptSelectorOther, SelectionKey.OP_READ, null);
    assertSame(sc.keyFor(acceptSelectorOther), acceptKeyOther);
}

Example 77 with SocketChannel

use of java.nio.channels.SocketChannel in project robovm by robovm.

the class AbstractSelectableChannelTest method test_register_LSelectorILObject.

/**
     * @tests AbstractSelectableChannel#register(Selector, int, Object)
     */
public void test_register_LSelectorILObject() throws IOException {
    assertFalse(testChannel.isRegistered());
    Selector acceptSelector1 = SelectorProvider.provider().openSelector();
    Selector acceptSelector2 = new MockAbstractSelector(SelectorProvider.provider());
    SocketChannel sc = SocketChannel.open();
    sc.configureBlocking(false);
    SelectionKey acceptKey = sc.register(acceptSelector1, SelectionKey.OP_READ, null);
    assertNotNull(acceptKey);
    assertTrue(acceptKey.isValid());
    assertSame(sc, acceptKey.channel());
    //test that sc.register invokes Selector.register()
    acceptKey = sc.register(acceptSelector2, SelectionKey.OP_READ, null);
    assertNull(acceptKey);
    // Regression test to ensure acceptance of a selector with empty
    // interest set.
    SocketChannel channel = SocketChannel.open();
    channel.configureBlocking(false);
    Selector selector = Selector.open();
    channel.register(selector, 0);
    selector.close();
    channel.close();
}

Example 78 with SocketChannel

use of java.nio.channels.SocketChannel in project robovm by robovm.

the class OldSocketTest method test_getOutputStream_shutdownOutput.

public void test_getOutputStream_shutdownOutput() throws Exception {
    // regression test for Harmony-873
    ServerSocket ss = new ServerSocket(0);
    Socket s = new Socket("127.0.0.1", ss.getLocalPort());
    ss.accept();
    s.shutdownOutput();
    try {
        s.getOutputStream();
        fail("should throw SocketException");
    } catch (IOException e) {
    // expected
    } finally {
        s.close();
    }
    SocketChannel channel = SocketChannel.open(new InetSocketAddress(ss.getInetAddress(), ss.getLocalPort()));
    channel.configureBlocking(false);
    ss.accept();
    Socket socket = channel.socket();
    OutputStream out = null;
    try {
        out = socket.getOutputStream();
        out.write(1);
        fail("IllegalBlockingModeException was not thrown.");
    } catch (IllegalBlockingModeException ibme) {
    //expected
    } finally {
        if (out != null)
            out.close();
        socket.close();
        channel.close();
    }
}

Example 79 with SocketChannel

use of java.nio.channels.SocketChannel in project robovm by robovm.

the class SocketTest method checkSocketLocalAndRemoteAddresses.

public void checkSocketLocalAndRemoteAddresses(boolean setOptions) throws Exception {
    InetAddress host = InetAddress.getLocalHost();
    // Open a local server port.
    ServerSocketChannel ssc = ServerSocketChannel.open();
    InetSocketAddress listenAddr = new InetSocketAddress(host, 0);
    ssc.socket().bind(listenAddr, 0);
    ServerSocket ss = ssc.socket();
    // Open a socket to the local port.
    SocketChannel out = SocketChannel.open();
    out.configureBlocking(false);
    if (setOptions) {
        out.socket().setTcpNoDelay(false);
    }
    InetSocketAddress addr = new InetSocketAddress(host, ssc.socket().getLocalPort());
    out.connect(addr);
    while (!out.finishConnect()) {
        Thread.sleep(1);
    }
    SocketChannel in = ssc.accept();
    if (setOptions) {
        in.socket().setTcpNoDelay(false);
    }
    InetSocketAddress outRemoteAddress = (InetSocketAddress) out.socket().getRemoteSocketAddress();
    InetSocketAddress outLocalAddress = (InetSocketAddress) out.socket().getLocalSocketAddress();
    InetSocketAddress inLocalAddress = (InetSocketAddress) in.socket().getLocalSocketAddress();
    InetSocketAddress inRemoteAddress = (InetSocketAddress) in.socket().getRemoteSocketAddress();
    System.err.println("inLocalAddress: " + inLocalAddress);
    System.err.println("inRemoteAddress: " + inRemoteAddress);
    System.err.println("outLocalAddress: " + outLocalAddress);
    System.err.println("outRemoteAddress: " + outRemoteAddress);
    assertEquals(outRemoteAddress.getPort(), ss.getLocalPort());
    assertEquals(inLocalAddress.getPort(), ss.getLocalPort());
    assertEquals(inRemoteAddress.getPort(), outLocalAddress.getPort());
    assertEquals(inLocalAddress.getAddress(), ss.getInetAddress());
    assertEquals(inRemoteAddress.getAddress(), ss.getInetAddress());
    assertEquals(outLocalAddress.getAddress(), ss.getInetAddress());
    assertEquals(outRemoteAddress.getAddress(), ss.getInetAddress());
    in.close();
    out.close();
    ssc.close();
    assertNull(in.socket().getRemoteSocketAddress());
    assertNull(out.socket().getRemoteSocketAddress());
    assertEquals(in.socket().getLocalSocketAddress(), ss.getLocalSocketAddress());
}

Example 80 with SocketChannel

use of java.nio.channels.SocketChannel in project blade by biezhi.

the class SelectorManager method chooseSelector.

private ManagedSelector chooseSelector(SelectableChannel channel) {
    // Ideally we would like to have all connections from the same client end
    // up on the same selector (to try to avoid smearing the data from a single
    // client over all cores), but because of proxies, the remote address may not
    // really be the client - so we have to hedge our bets to ensure that all
    // channels don't end up on the one selector for a proxy.
    ManagedSelector candidate1 = null;
    if (channel != null) {
        try {
            if (channel instanceof SocketChannel) {
                SocketAddress remote = ((SocketChannel) channel).getRemoteAddress();
                if (remote instanceof InetSocketAddress) {
                    byte[] addr = ((InetSocketAddress) remote).getAddress().getAddress();
                    if (addr != null) {
                        int s = addr[addr.length - 1] & 0xFF;
                        candidate1 = _selectors[s % getSelectorCount()];
                    }
                }
            }
        } catch (IOException x) {
            LOG.ignore(x);
        }
    }
    // The ++ increment here is not atomic, but it does not matter,
    // so long as the value changes sometimes, then connections will
    // be distributed over the available selectors.
    long s = _selectorIndex++;
    int index = (int) (s % getSelectorCount());
    ManagedSelector candidate2 = _selectors[index];
    if (candidate1 == null || candidate1.size() >= candidate2.size() * 2)
        return candidate2;
    return candidate1;
}