Examples with EventLoop io.netty.channel.EventLoop used on opensource projects

Example 76 with EventLoop

use of io.netty.channel.EventLoop in project netty by netty.

the class FixedChannelPoolMapDeadlockTest method testDeadlockOnRemove.

@Test
public void testDeadlockOnRemove() throws Exception {
    final EventLoop thread1 = new DefaultEventLoop();
    final Bootstrap bootstrap1 = new Bootstrap().channel(LocalChannel.class).group(thread1).localAddress(new LocalAddress("#1"));
    final EventLoop thread2 = new DefaultEventLoop();
    final Bootstrap bootstrap2 = new Bootstrap().channel(LocalChannel.class).group(thread2).localAddress(new LocalAddress("#2"));
    // pool1 runs on thread2, pool2 runs on thread1
    final FixedChannelPool pool1 = new FixedChannelPool(bootstrap2, NOOP_HANDLER, 1);
    final FixedChannelPool pool2 = new FixedChannelPool(bootstrap1, NOOP_HANDLER, 1);
    final AbstractChannelPoolMap<String, FixedChannelPool> channelPoolMap = new AbstractChannelPoolMap<String, FixedChannelPool>() {

        @Override
        protected FixedChannelPool newPool(String key) {
            if ("#1".equals(key)) {
                return pool1;
            } else if ("#2".equals(key)) {
                return pool2;
            } else {
                throw new AssertionError("Unexpected key=" + key);
            }
        }
    };
    assertSame(pool1, channelPoolMap.get("#1"));
    assertSame(pool2, channelPoolMap.get("#2"));
    // thread1 tries to remove pool1 which is running on thread2
    // thread2 tries to remove pool2 which is running on thread1
    final CyclicBarrier barrier = new CyclicBarrier(2);
    Future<?> future1 = thread1.submit(new Runnable() {

        @Override
        public void run() {
            await(barrier);
            channelPoolMap.remove("#1");
        }
    });
    Future<?> future2 = thread2.submit(new Runnable() {

        @Override
        public void run() {
            await(barrier);
            channelPoolMap.remove("#2");
        }
    });
    // A blocking close on remove will cause a deadlock here and the test will time out
    try {
        future1.get(1, TimeUnit.SECONDS);
        future2.get(1, TimeUnit.SECONDS);
    } catch (TimeoutException e) {
        // Fail the test on timeout to distinguish from other errors
        throw new AssertionError(e);
    } finally {
        pool1.close();
        pool2.close();
        channelPoolMap.close();
        shutdown(thread1, thread2);
    }
}

Example 77 with EventLoop

use of io.netty.channel.EventLoop in project netty by netty.

the class AbstractChannelPoolMapTest method testMap.

@Test
public void testMap() throws Exception {
    EventLoopGroup group = new LocalEventLoopGroup();
    LocalAddress addr = new LocalAddress(getLocalAddrId());
    final Bootstrap cb = new Bootstrap();
    cb.remoteAddress(addr);
    cb.group(group).channel(LocalChannel.class);
    AbstractChannelPoolMap<EventLoop, SimpleChannelPool> poolMap = new AbstractChannelPoolMap<EventLoop, SimpleChannelPool>() {

        @Override
        protected SimpleChannelPool newPool(EventLoop key) {
            return new SimpleChannelPool(cb.clone(key), new TestChannelPoolHandler());
        }
    };
    EventLoop loop = group.next();
    assertFalse(poolMap.iterator().hasNext());
    assertEquals(0, poolMap.size());
    final SimpleChannelPool pool = poolMap.get(loop);
    assertEquals(1, poolMap.size());
    assertTrue(poolMap.iterator().hasNext());
    assertSame(pool, poolMap.get(loop));
    assertTrue(poolMap.remove(loop));
    assertFalse(poolMap.remove(loop));
    assertFalse(poolMap.iterator().hasNext());
    assertEquals(0, poolMap.size());
    assertThrows(ConnectException.class, new Executable() {

        @Override
        public void execute() throws Throwable {
            pool.acquire().syncUninterruptibly();
        }
    });
    poolMap.close();
}