edf4e28afa
Motivation: The expression "not is success" can mean that either the future failed, or it has not yet completed. However, many places where such an expression is used is expecting the future to have completed. Specifically, they are expecting to be able to call `cause()` on the future. It is both more correct, and semantically clearer, to call `isFailed()` instead of `!isSuccess()`. Modification: Change all places that used `!isSuccess()` to mean that the future had failed, to use `isFailed()`. A few places are relying on `isSuccess()` returning `false` for _incomplete_ futures, and these places have been left unchanged. Result: Clearer code, with potentially fewer latent bugs.
108 lines
4.0 KiB
Java
108 lines
4.0 KiB
Java
/*
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* Copyright 2015 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.channel.epoll;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.channel.Channel;
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import io.netty.channel.ChannelHandler;
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import io.netty.channel.ChannelHandlerContext;
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import io.netty.channel.unix.DomainSocketReadMode;
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import io.netty.channel.unix.FileDescriptor;
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import io.netty.channel.unix.UnixChannelOption;
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import io.netty.testsuite.transport.TestsuitePermutation;
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import io.netty.testsuite.transport.socket.AbstractSocketTest;
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import org.junit.jupiter.api.Test;
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import org.junit.jupiter.api.TestInfo;
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import org.junit.jupiter.api.Timeout;
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import java.net.SocketAddress;
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import java.util.List;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.TimeUnit;
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import static org.junit.jupiter.api.Assertions.assertFalse;
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import static org.junit.jupiter.api.Assertions.assertNull;
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import static org.junit.jupiter.api.Assertions.assertTrue;
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public class EpollDomainSocketFdTest extends AbstractSocketTest {
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@Override
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protected SocketAddress newSocketAddress() {
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return EpollSocketTestPermutation.newDomainSocketAddress();
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}
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@Override
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protected List<TestsuitePermutation.BootstrapComboFactory<ServerBootstrap, Bootstrap>> newFactories() {
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return EpollSocketTestPermutation.INSTANCE.domainSocket();
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}
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@Test
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@Timeout(value = 30000, unit = TimeUnit.MILLISECONDS)
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public void testSendRecvFd(TestInfo testInfo) throws Throwable {
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run(testInfo, this::testSendRecvFd);
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}
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public void testSendRecvFd(ServerBootstrap sb, Bootstrap cb) throws Throwable {
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final BlockingQueue<Object> queue = new LinkedBlockingQueue<>(1);
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sb.childHandler(new ChannelHandler() {
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@Override
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public void channelActive(ChannelHandlerContext ctx) throws Exception {
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// Create new channel and obtain a file descriptor from it.
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final EpollDomainSocketChannel ch = new EpollDomainSocketChannel(ctx.channel().executor());
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ctx.writeAndFlush(ch.fd()).addListener(future -> {
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if (future.isFailed()) {
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Throwable cause = future.cause();
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queue.offer(cause);
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}
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});
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}
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});
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cb.handler(new ChannelHandler() {
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@Override
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public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
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FileDescriptor fd = (FileDescriptor) msg;
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queue.offer(fd);
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}
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@Override
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public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
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queue.add(cause);
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ctx.close();
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}
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});
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cb.option(UnixChannelOption.DOMAIN_SOCKET_READ_MODE,
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DomainSocketReadMode.FILE_DESCRIPTORS);
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Channel sc = sb.bind().get();
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Channel cc = cb.connect(sc.localAddress()).get();
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Object received = queue.take();
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cc.close().sync();
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sc.close().sync();
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if (received instanceof FileDescriptor) {
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FileDescriptor fd = (FileDescriptor) received;
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assertTrue(fd.isOpen());
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fd.close();
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assertFalse(fd.isOpen());
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assertNull(queue.poll());
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} else {
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throw (Throwable) received;
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}
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}
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}
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