/*
* Copyright 2013 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.testsuite.transport.socket;
import io.netty.bootstrap.Bootstrap;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.CompositeByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import org.junit.Test;
import java.io.IOException;
import java.util.Random;
import java.util.concurrent.atomic.AtomicReference;
import static org.junit.Assert.*;
public class SocketGatheringWriteTest extends AbstractSocketTest {
private static final Random random = new Random();
static final byte[] data = new byte[1048576];
static {
random.nextBytes(data);
}
@Test(timeout = 30000)
public void testGatheringWrite() throws Throwable {
run();
}
public void testGatheringWrite(ServerBootstrap sb, Bootstrap cb) throws Throwable {
testGatheringWrite0(sb, cb, data, false, true);
}
@Test(timeout = 30000)
public void testGatheringWriteNotAutoRead() throws Throwable {
run();
}
public void testGatheringWriteNotAutoRead(ServerBootstrap sb, Bootstrap cb) throws Throwable {
testGatheringWrite0(sb, cb, data, false, false);
}
@Test(timeout = 30000)
public void testGatheringWriteWithComposite() throws Throwable {
run();
}
public void testGatheringWriteWithCompositeNotAutoRead(ServerBootstrap sb, Bootstrap cb) throws Throwable {
testGatheringWrite0(sb, cb, data, true, false);
}
@Test(timeout = 30000)
public void testGatheringWriteWithCompositeNotAutoRead() throws Throwable {
run();
}
public void testGatheringWriteWithComposite(ServerBootstrap sb, Bootstrap cb) throws Throwable {
testGatheringWrite0(sb, cb, data, true, true);
}
// Test for https://github.com/netty/netty/issues/2647
@Test(timeout = 30000)
public void testGatheringWriteBig() throws Throwable {
run();
}
public void testGatheringWriteBig(ServerBootstrap sb, Bootstrap cb) throws Throwable {
byte[] bigData = new byte[1024 * 1024 * 50];
random.nextBytes(bigData);
testGatheringWrite0(sb, cb, bigData, false, true);
}
private static void testGatheringWrite0(
ServerBootstrap sb, Bootstrap cb, byte[] data, boolean composite, boolean autoRead) throws Throwable {
final TestHandler sh = new TestHandler(autoRead);
final TestHandler ch = new TestHandler(autoRead);
cb.handler(ch);
sb.childHandler(sh);
Channel sc = sb.bind().sync().channel();
Channel cc = cb.connect().sync().channel();
for (int i = 0; i < data.length;) {
int length = Math.min(random.nextInt(1024 * 8), data.length - i);
ByteBuf buf = Unpooled.wrappedBuffer(data, i, length);
if (composite && i % 2 == 0) {
int split = buf.readableBytes() / 2;
int size = buf.readableBytes() - split;
int oldIndex = buf.writerIndex();
buf.writerIndex(split);
ByteBuf buf2 = Unpooled.buffer(size).writeBytes(buf, split, oldIndex - split);
CompositeByteBuf comp = Unpooled.compositeBuffer();
comp.addComponent(buf).addComponent(buf2).writerIndex(length);
cc.write(comp);
} else {
cc.write(buf);
}
i += length;
}
assertNotEquals(cc.voidPromise(), cc.writeAndFlush(Unpooled.EMPTY_BUFFER).sync());
while (sh.counter < data.length) {
if (sh.exception.get() != null) {
break;
}
if (ch.exception.get() != null) {
break;
}
try {
Thread.sleep(50);
} catch (InterruptedException e) {
// Ignore.
}
}
sh.channel.close().sync();
ch.channel.close().sync();
sc.close().sync();
if (sh.exception.get() != null && !(sh.exception.get() instanceof IOException)) {
throw sh.exception.get();
}
if (sh.exception.get() != null) {
throw sh.exception.get();
}
if (ch.exception.get() != null && !(ch.exception.get() instanceof IOException)) {
throw ch.exception.get();
}
if (ch.exception.get() != null) {
throw ch.exception.get();
}
assertEquals(0, ch.counter);
assertEquals(Unpooled.wrappedBuffer(data), sh.received);
}
private static class TestHandler extends SimpleChannelInboundHandler<ByteBuf> {
private final boolean autoRead;
volatile Channel channel;
final AtomicReference<Throwable> exception = new AtomicReference<Throwable>();
volatile int counter;
final ByteBuf received = Unpooled.buffer();
TestHandler(boolean autoRead) {
this.autoRead = autoRead;
}
@Override
public void channelActive(ChannelHandlerContext ctx)
throws Exception {
channel = ctx.channel();
}
@Override
public void messageReceived(ChannelHandlerContext ctx, ByteBuf in) throws Exception {
counter += in.readableBytes();
received.writeBytes(in);
}
@Override
public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
if (!autoRead) {
ctx.read();
}
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx,
Throwable cause) throws Exception {
if (exception.compareAndSet(null, cause)) {
ctx.close();
}
}
}
}