IoUringEventLoopTest Class — netty Architecture

Source Code

transport-native-io_uring/src/test/java/io/netty/channel/uring/IoUringEventLoopTest.java lines 36–112

public class IoUringEventLoopTest extends AbstractSingleThreadEventLoopTest {

    public static final Runnable EMPTY_RUNNABLE = () -> {
    };

    @BeforeAll
    public static void loadJNI() {
        assumeTrue(IoUring.isAvailable());
    }

    protected IoHandlerFactory newIoHandlerFactory() {
        return IoUringIoHandler.newFactory();
    }

    @Override
    protected EventLoopGroup newEventLoopGroup() {
        return new MultiThreadIoEventLoopGroup(1, newIoHandlerFactory());
    }

    @Override
    protected EventLoopGroup newAutoScalingEventLoopGroup() {
        return new MultiThreadIoEventLoopGroup(SCALING_MAX_THREADS, (Executor) null, AUTO_SCALING_CHOOSER_FACTORY,
                IoUringIoHandler.newFactory(new IoUringIoHandlerConfig().setSingleIssuer(false)));
    }

    @Override
    protected Channel newChannel() {
        return new IoUringServerSocketChannel();
    }

    @Override
    protected Class<? extends ServerChannel> serverChannelClass() {
        return IoUringServerSocketChannel.class;
    }

    @Test
    public void testSubmitMultipleTasksAndEnsureTheseAreExecuted() throws Exception {
        EventLoopGroup group =  new MultiThreadIoEventLoopGroup(1, newIoHandlerFactory());
        try {
            EventLoop loop = group.next();
            loop.submit(EMPTY_RUNNABLE).sync();
            loop.submit(EMPTY_RUNNABLE).sync();
            loop.submit(EMPTY_RUNNABLE).sync();
            loop.submit(EMPTY_RUNNABLE).sync();
        } finally {
            group.shutdownGracefully();
        }
    }

    @RepeatedTest(100)
    public void shutdownNotSoGracefully() throws Exception {
        EventLoopGroup group =  new MultiThreadIoEventLoopGroup(1, newIoHandlerFactory());
        CountDownLatch latch = new CountDownLatch(1);
        group.submit(() -> latch.countDown());
        latch.await(5, TimeUnit.SECONDS);
        assertTrue(group.shutdownGracefully(0L, 0L, TimeUnit.NANOSECONDS)
                .await(1500L, TimeUnit.MILLISECONDS));
    }

    @Test
    public void shutsDownGracefully() throws Exception {
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(1, newIoHandlerFactory());
        assertTrue(group.shutdownGracefully(1L, 1L, TimeUnit.MILLISECONDS)
                .await(1500L, TimeUnit.MILLISECONDS));
    }

    @Test
    public void testSchedule() throws Exception {
        EventLoopGroup group = new MultiThreadIoEventLoopGroup(1, IoUringIoHandler.newFactory());
        try {
            EventLoop loop = group.next();
            loop.schedule(EMPTY_RUNNABLE, 1, TimeUnit.SECONDS).sync();
        } finally {
            group.shutdownGracefully();
        }
    }
}