Motivation: We dont need to use the ThreadDeathWatcher if we use a FastThreadLocalThread for which we wrap the Runnable and ensure we call FastThreadLocal.removeAll() once the Runnable completes. Modifications: - Dont use a ThreadDeathWatcher if we are sure we will call FastThreadLocal.removeAll() - Add unit test. Result: Less overhead / running theads if you only allocate / deallocate from FastThreadLocalThreads.
40 lines
1.2 KiB
Java
40 lines
1.2 KiB
Java
/*
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* Copyright 2017 The Netty Project
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*
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* The Netty Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package io.netty.util.concurrent;
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import io.netty.util.internal.ObjectUtil;
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final class FastThreadLocalRunnable implements Runnable {
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private final Runnable runnable;
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private FastThreadLocalRunnable(Runnable runnable) {
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this.runnable = ObjectUtil.checkNotNull(runnable, "runnable");
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}
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@Override
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public void run() {
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try {
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runnable.run();
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} finally {
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FastThreadLocal.removeAll();
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}
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}
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static Runnable wrap(Runnable runnable) {
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return runnable instanceof FastThreadLocalRunnable ? runnable : new FastThreadLocalRunnable(runnable);
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}
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}
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