EpollSocketTest.java — netty Source File

Source Code

/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project licenses this file to you under the Apache License,
 * version 2.0 (the "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at:
 *
 *   https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package io.netty.channel.epoll;

import io.netty.channel.unix.DomainSocketAddress;
import io.netty.channel.unix.PeerCredentials;
import io.netty.channel.unix.tests.SocketTest;
import io.netty.channel.unix.tests.UnixTestUtils;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.Test;

import java.io.IOException;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;

public class EpollSocketTest extends SocketTest<LinuxSocket> {
    @BeforeAll
    public static void loadJNI() {
        Epoll.ensureAvailability();
    }

    @Test
    public void testTcpCork() throws Exception {
        assertFalse(socket.isTcpCork());
        socket.setTcpCork(true);
        assertTrue(socket.isTcpCork());
    }

    @Test
    public void testPeerCreds() throws IOException {
        LinuxSocket s1 = LinuxSocket.newSocketDomain();
        LinuxSocket s2 = LinuxSocket.newSocketDomain();

        try {
            DomainSocketAddress dsa = UnixTestUtils.newDomainSocketAddress();
            s1.bind(dsa);
            s1.listen(1);

            assertTrue(s2.connect(dsa));
            byte [] addr = new byte[64];
            s1.accept(addr);
            PeerCredentials pc = s1.getPeerCredentials();
            assertNotEquals(pc.uid(), -1);
        } finally {
            s1.close();
            s2.close();
        }
    }

    @Override
    protected LinuxSocket newSocket() {
        return LinuxSocket.newSocketStream();
    }

    @Override
    protected int level() {
        // Value for SOL_SOCKET
        // See https://github.com/torvalds/linux/blob/v5.17/include/uapi/asm-generic/socket.h
        return 1;
    }

    @Override
    protected int optname() {
        // Value for SO_REUSEADDR
        // See https://github.com/torvalds/linux/blob/v5.17/include/uapi/asm-generic/socket.h
        return 2;
    }
}