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

Example 16 with Selector

use of java.nio.channels.Selector in project hazelcast by hazelcast.

the class NonBlockingIOThread method rebuildSelector.

// this method is always invoked in this thread
// after we have blocked for selector.select in #runSelectLoopWithSelectorFix
private void rebuildSelector() {
    selectorRebuildCount.inc();
    Selector newSelector = newSelector(logger);
    Selector oldSelector = this.selector;
    // reset each handler's selectionKey, cancel the old keys
    for (SelectionKey key : oldSelector.keys()) {
        AbstractHandler handler = (AbstractHandler) key.attachment();
        SelectableChannel channel = key.channel();
        try {
            int ops = key.interestOps();
            SelectionKey newSelectionKey = channel.register(newSelector, ops, handler);
            handler.setSelectionKey(newSelectionKey);
        } catch (ClosedChannelException e) {
            logger.info("Channel was closed while trying to register with new selector.");
        } catch (CancelledKeyException e) {
            // a CancelledKeyException may be thrown in key.interestOps
            // in this case, since the key is already cancelled, just do nothing
            EmptyStatement.ignore(e);
        }
        key.cancel();
    }
    // close the old selector and substitute with new one
    closeSelector();
    this.selector = newSelector;
    logger.warning("Recreated Selector because of possible java/network stack bug.");
}

Example 17 with Selector

use of java.nio.channels.Selector in project hazelcast by hazelcast.

the class SelectorOptimizerTest method optimize.

@Test
public void optimize() throws Exception {
    Selector selector = Selector.open();
    assumeTrue(findOptimizableSelectorClass(selector) != null);
    SelectorOptimizer.SelectionKeysSet keys = SelectorOptimizer.optimize(selector, logger);
    assertNotNull(keys);
}

Example 18 with Selector

use of java.nio.channels.Selector in project hazelcast by hazelcast.

the class SocketAcceptorThread method shutdown.

public synchronized void shutdown() {
    if (!live) {
        return;
    }
    logger.finest("Shutting down SocketAcceptor thread.");
    live = false;
    Selector sel = selector;
    if (sel != null) {
        sel.wakeup();
    }
    try {
        join(SHUTDOWN_TIMEOUT_MILLIS);
    } catch (InterruptedException e) {
        logger.finest(e);
    }
}

Example 19 with Selector

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

the class SelectorTest method testLeakingPipes.

// We previously leaked a file descriptor for each selector instance created.
//
// http://code.google.com/p/android/issues/detail?id=5993
// http://code.google.com/p/android/issues/detail?id=4825
public void testLeakingPipes() throws IOException {
    for (int i = 0; i < 2000; i++) {
        Selector selector = Selector.open();
        selector.close();
    }
}

Example 20 with Selector

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

the class SelectorTest method testNonBlockingConnect_slow.

public void testNonBlockingConnect_slow() throws Exception {
    // Test the case where we have to wait for the connection.
    Selector selector = Selector.open();
    StuckServer ss = new StuckServer(true);
    try {
        SocketChannel sc = SocketChannel.open();
        sc.configureBlocking(false);
        sc.connect(ss.getLocalSocketAddress());
        SelectionKey key = sc.register(selector, SelectionKey.OP_CONNECT);
        assertEquals(1, selector.select());
        assertEquals(SelectionKey.OP_CONNECT, key.readyOps());
        sc.finishConnect();
    } finally {
        selector.close();
        ss.close();
    }
}