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Use custom thread factory by default to better recognize the threads

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... from their names
This commit is contained in:
Trustin Lee 2012-06-01 22:57:54 -07:00
parent 61e169e53a
commit 04cf1c8199
3 changed files with 32 additions and 12 deletions
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37
transport/src/main/java/io/netty/channel/MultithreadEventExecutor.java
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@ -5,7 +5,6 @@ import java.util.Collections;
import java.util.List;
import java.util.concurrent.Callable;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import java.util.concurrent.Future;
import java.util.concurrent.ScheduledFuture;
import java.util.concurrent.ThreadFactory;
@ -15,8 +14,8 @@ import java.util.concurrent.atomic.AtomicInteger;
public abstract class MultithreadEventExecutor implements EventExecutor {
protected static final int DEFAULT_POOL_SIZE = Runtime.getRuntime().availableProcessors() * 2;
protected static final ThreadFactory DEFAULT_THREAD_FACTORY = Executors.defaultThreadFactory();
private static final int DEFAULT_POOL_SIZE = Runtime.getRuntime().availableProcessors() * 2;
private static final AtomicInteger poolId = new AtomicInteger();
private final EventExecutor[] children;
private final AtomicInteger childIndex = new AtomicInteger();
@ -32,7 +31,7 @@ public abstract class MultithreadEventExecutor implements EventExecutor {
}
protected MultithreadEventExecutor(int nThreads, Object... args) {
this(nThreads, DEFAULT_THREAD_FACTORY, args);
this(nThreads, null, args);
}
protected MultithreadEventExecutor(int nThreads, ThreadFactory threadFactory, Object... args) {
@ -40,8 +39,9 @@ public abstract class MultithreadEventExecutor implements EventExecutor {
throw new IllegalArgumentException(String.format(
"nThreads: %d (expected: > 0)", nThreads));
}
if (threadFactory == null) {
throw new NullPointerException("threadFactory");
threadFactory = new DefaultThreadFactory();
}
children = new SingleThreadEventExecutor[nThreads];
@ -201,4 +201,31 @@ public abstract class MultithreadEventExecutor implements EventExecutor {
}
return loop;
}
private final class DefaultThreadFactory implements ThreadFactory {
private final AtomicInteger nextId = new AtomicInteger();
private final String prefix;
DefaultThreadFactory() {
String typeName = MultithreadEventExecutor.this.getClass().getSimpleName();
typeName = "" + Character.toLowerCase(typeName.charAt(0)) + typeName.substring(1);
prefix = typeName + '-' + poolId.incrementAndGet() + '-';
}
@Override
public Thread newThread(Runnable r) {
Thread t = new Thread(r, prefix + nextId.incrementAndGet());
try {
if (t.isDaemon()) {
t.setDaemon(false);
}
if (t.getPriority() != Thread.MAX_PRIORITY) {
t.setPriority(Thread.MAX_PRIORITY);
}
} catch (Exception ignored) {
// Doesn't matter even if failed to set.
}
return t;
}
}
}

5
transport/src/main/java/io/netty/channel/SingleThreadEventExecutor.java
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@ -16,7 +16,6 @@ import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Callable;
import java.util.concurrent.DelayQueue;
import java.util.concurrent.Delayed;
import java.util.concurrent.Executors;
import java.util.concurrent.FutureTask;
import java.util.concurrent.RejectedExecutionException;
import java.util.concurrent.ScheduledFuture;
@ -68,10 +67,6 @@ public abstract class SingleThreadEventExecutor extends AbstractExecutorService
private long lastCheckTimeNanos;
private long lastPurgeTimeNanos;
protected SingleThreadEventExecutor() {
this(Executors.defaultThreadFactory());
}
protected SingleThreadEventExecutor(ThreadFactory threadFactory) {
thread = threadFactory.newThread(new Runnable() {
@Override

2
transport/src/main/java/io/netty/channel/SingleThreadEventLoop.java
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@ -4,8 +4,6 @@ import java.util.concurrent.ThreadFactory;
public abstract class SingleThreadEventLoop extends SingleThreadEventExecutor implements EventLoop {
protected SingleThreadEventLoop() {}
protected SingleThreadEventLoop(ThreadFactory threadFactory) {
super(threadFactory);
}