netty5/transport-native-epoll/src/main/java/io/netty/channel/epoll/EpollServerDomainSocketChannel.java
Scott Mitchell 3cc4052963 New native transport for kqueue
Motivation:
We currently don't have a native transport which supports kqueue https://www.freebsd.org/cgi/man.cgi?query=kqueue&sektion=2. This can be useful for BSD systems such as MacOS to take advantage of native features, and provide feature parity with the Linux native transport.

Modifications:
- Make a new transport-native-unix-common module with all the java classes and JNI code for generic unix items. This module will build a static library for each unix platform, and included in the dynamic libraries used for JNI (e.g. transport-native-epoll, and eventually kqueue).
- Make a new transport-native-unix-common-tests module where the tests for the transport-native-unix-common module will live. This is so each unix platform can inherit from these test and ensure they pass.
- Add a new transport-native-kqueue module which uses JNI to directly interact with kqueue

Result:
JNI support for kqueue.
Fixes https://github.com/netty/netty/issues/2448
Fixes https://github.com/netty/netty/issues/4231
2017-05-03 09:53:22 -07:00

104 lines
3.2 KiB
Java

/*
* Copyright 2015 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:
*
* http://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.Channel;
import io.netty.channel.unix.DomainSocketAddress;
import io.netty.channel.unix.ServerDomainSocketChannel;
import io.netty.channel.unix.Socket;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;
import java.io.File;
import java.net.SocketAddress;
import static io.netty.channel.epoll.LinuxSocket.newSocketDomain;
public final class EpollServerDomainSocketChannel extends AbstractEpollServerChannel
implements ServerDomainSocketChannel {
private static final InternalLogger logger = InternalLoggerFactory.getInstance(
EpollServerDomainSocketChannel.class);
private final EpollServerChannelConfig config = new EpollServerChannelConfig(this);
private volatile DomainSocketAddress local;
public EpollServerDomainSocketChannel() {
super(newSocketDomain(), false);
}
public EpollServerDomainSocketChannel(int fd) {
super(fd);
}
EpollServerDomainSocketChannel(LinuxSocket fd) {
super(fd);
}
EpollServerDomainSocketChannel(LinuxSocket fd, boolean active) {
super(fd, active);
}
@Override
protected Channel newChildChannel(int fd, byte[] addr, int offset, int len) throws Exception {
return new EpollDomainSocketChannel(this, new Socket(fd));
}
@Override
protected DomainSocketAddress localAddress0() {
return local;
}
@Override
protected void doBind(SocketAddress localAddress) throws Exception {
socket.bind(localAddress);
socket.listen(config.getBacklog());
local = (DomainSocketAddress) localAddress;
active = true;
}
@Override
protected void doClose() throws Exception {
try {
super.doClose();
} finally {
DomainSocketAddress local = this.local;
if (local != null) {
// Delete the socket file if possible.
File socketFile = new File(local.path());
boolean success = socketFile.delete();
if (!success && logger.isDebugEnabled()) {
logger.debug("Failed to delete a domain socket file: {}", local.path());
}
}
}
}
@Override
public EpollServerChannelConfig config() {
return config;
}
@Override
public DomainSocketAddress remoteAddress() {
return (DomainSocketAddress) super.remoteAddress();
}
@Override
public DomainSocketAddress localAddress() {
return (DomainSocketAddress) super.localAddress();
}
}