org.xnio.nio.NioUdpChannelHandle Maven / Gradle / Ivy
/*
* JBoss, Home of Professional Open Source
*
* Copyright 2013 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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 org.xnio.nio;
import java.nio.channels.CancelledKeyException;
import java.nio.channels.SelectionKey;
import org.xnio.Bits;
import org.xnio.ChannelListeners;
import org.xnio.IoUtils;
/**
* @author David M. Lloyd
*/
final class NioUdpChannelHandle extends NioHandle {
private final NioUdpChannel channel;
NioUdpChannelHandle(final WorkerThread workerThread, final SelectionKey selectionKey, final NioUdpChannel channel) {
super(workerThread, selectionKey);
this.channel = channel;
}
void handleReady(int ops) {
try {
if (ops == 0) {
// the dreaded bug
final SelectionKey key = getSelectionKey();
final int interestOps = key.interestOps();
if (interestOps != 0) {
ops = interestOps;
} else {
// urp
forceTermination();
return;
}
}
if (Bits.allAreSet(ops, SelectionKey.OP_READ)) try {
ChannelListeners.invokeChannelListener(channel, channel.getReadListener());
} catch (Throwable ignored) {
}
if (Bits.allAreSet(ops, SelectionKey.OP_WRITE)) try {
ChannelListeners.invokeChannelListener(channel, channel.getWriteListener());
} catch (Throwable ignored) {
}
} catch (CancelledKeyException ignored) {}
}
void forceTermination() {
IoUtils.safeClose(channel);
}
void terminated() {
channel.invokeCloseHandler();
}
}