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

Example 1 with SelectStrategy

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

the class NioEventLoopTest method testRebuildSelectorOnIOException.

@Test
public void testRebuildSelectorOnIOException() {
    SelectStrategyFactory selectStrategyFactory = new SelectStrategyFactory() {

        @Override
        public SelectStrategy newSelectStrategy() {
            return new SelectStrategy() {

                private boolean thrown;

                @Override
                public int calculateStrategy(IntSupplier selectSupplier, boolean hasTasks) throws Exception {
                    if (!thrown) {
                        thrown = true;
                        throw new IOException();
                    }
                    return -1;
                }
            };
        }
    };
    EventLoopGroup group = new NioEventLoopGroup(1, new DefaultThreadFactory("ioPool"), SelectorProvider.provider(), selectStrategyFactory);
    final NioEventLoop loop = (NioEventLoop) group.next();
    try {
        Channel channel = new NioServerSocketChannel();
        Selector selector = loop.unwrappedSelector();
        loop.register(channel).syncUninterruptibly();
        Selector newSelector = ((NioEventLoop) channel.eventLoop()).unwrappedSelector();
        assertTrue(newSelector.isOpen());
        assertNotSame(selector, newSelector);
        assertFalse(selector.isOpen());
        channel.close().syncUninterruptibly();
    } finally {
        group.shutdownGracefully();
    }
}