netty5/transport/src/main/java/io/netty/channel/AbstractServerChannel.java
Norman Maurer aa8bdb5d6b Fix assertion error when closing / shutdown native channel and SO_LINGER is set.
Motivation:

When SO_LINGER is used we run doClose() on the GlobalEventExecutor by default so we need to ensure we schedule all code that needs to be run on the EventLoop on the EventLoop in doClose. Beside this there are also threading issues when calling shutdownOutput(...)

Modifications:

- Schedule removal from EventLoop to the EventLoop
- Correctly handle shutdownOutput and shutdown in respect with threading-model
- Add unit tests

Result:

Fixes [#7159].
2017-09-18 14:46:37 -07:00

83 lines
2.4 KiB
Java

/*
* Copyright 2012 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;
import java.net.SocketAddress;
/**
* A skeletal server-side {@link Channel} implementation. A server-side
* {@link Channel} does not allow the following operations:
* <ul>
* <li>{@link #connect(SocketAddress, ChannelPromise)}</li>
* <li>{@link #disconnect(ChannelPromise)}</li>
* <li>{@link #write(Object, ChannelPromise)}</li>
* <li>{@link #flush()}</li>
* <li>and the shortcut methods which calls the methods mentioned above
* </ul>
*/
public abstract class AbstractServerChannel extends AbstractChannel implements ServerChannel {
private static final ChannelMetadata METADATA = new ChannelMetadata(false, 16);
/**
* Creates a new instance.
*/
protected AbstractServerChannel() {
super(null);
}
@Override
public ChannelMetadata metadata() {
return METADATA;
}
@Override
public SocketAddress remoteAddress() {
return null;
}
@Override
protected SocketAddress remoteAddress0() {
return null;
}
@Override
protected void doDisconnect() throws Exception {
throw new UnsupportedOperationException();
}
@Override
protected AbstractUnsafe newUnsafe() {
return new DefaultServerUnsafe();
}
@Override
protected void doWrite(ChannelOutboundBuffer in) throws Exception {
throw new UnsupportedOperationException();
}
@Override
protected final Object filterOutboundMessage(Object msg) {
throw new UnsupportedOperationException();
}
private final class DefaultServerUnsafe extends AbstractUnsafe {
@Override
public void connect(SocketAddress remoteAddress, SocketAddress localAddress, ChannelPromise promise) {
safeSetFailure(promise, new UnsupportedOperationException());
}
}
}