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57 lines
2.1 KiB
57 lines
2.1 KiB
/*
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* Copyright (c) 2017 m2049r
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.wownero.wownerujo.util;
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import com.wownero.wownerujo.service.MoneroHandlerThread;
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import java.util.concurrent.BlockingQueue;
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import java.util.concurrent.Executor;
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import java.util.concurrent.LinkedBlockingQueue;
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import java.util.concurrent.ThreadFactory;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicInteger;
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public class MoneroThreadPoolExecutor {
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private static final int CPU_COUNT = Runtime.getRuntime().availableProcessors();
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private static final int CORE_POOL_SIZE = Math.max(2, Math.min(CPU_COUNT - 1, 4));
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private static final int MAXIMUM_POOL_SIZE = CPU_COUNT * 2 + 1;
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private static final int KEEP_ALIVE_SECONDS = 30;
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private static final ThreadFactory sThreadFactory = new ThreadFactory() {
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private final AtomicInteger mCount = new AtomicInteger(1);
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public Thread newThread(Runnable r) {
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return new Thread(null, r, "MoneroTask #" + mCount.getAndIncrement(), MoneroHandlerThread.THREAD_STACK_SIZE);
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}
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};
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private static final BlockingQueue<Runnable> sPoolWorkQueue =
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new LinkedBlockingQueue<>(128);
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public static final Executor MONERO_THREAD_POOL_EXECUTOR;
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static {
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ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(
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CORE_POOL_SIZE, MAXIMUM_POOL_SIZE, KEEP_ALIVE_SECONDS, TimeUnit.SECONDS,
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sPoolWorkQueue, sThreadFactory);
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threadPoolExecutor.allowCoreThreadTimeOut(true);
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MONERO_THREAD_POOL_EXECUTOR = threadPoolExecutor;
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}
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}
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