package com.hdl.sdk.link.common.utils;


import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;

/**
 * Created by Tong on 2021/9/15.
 */
public class ThreadToolUtils {

//    private final Handler uiHandler = new Handler(Looper.getMainLooper());

    //cpu 最大线程容纳量
    private final int coreSize = Runtime.getRuntime().availableProcessors() + 1;

    private ThreadToolUtils() {
    }

    private static class SingletonInstance {
        private static final ThreadToolUtils INSTANCE = new ThreadToolUtils();
    }

    public static ThreadToolUtils getInstance() {
        return SingletonInstance.INSTANCE;
    }


    /**
     * 线程数量固定的线程池
     */
    public ExecutorService newFixedThreadPool(int size) {
        if (size == 0 || coreSize < size) {
            return Executors.newFixedThreadPool(coreSize);
        }
        return Executors.newFixedThreadPool(size);
    }

    /**
     * 定时任务线程池
     */
    public ScheduledExecutorService newScheduledThreadPool(int size) {
        if (size == 0 || coreSize < size) {
            return Executors.newScheduledThreadPool(coreSize);
        }
        return Executors.newScheduledThreadPool(size);
    }

    /**
     * 单一线程
     */
    public ExecutorService newSingleThreadPool() {
        return Executors.newSingleThreadExecutor();
    }


    public ExecutorService newCachedThreadPool() {
        return Executors.newCachedThreadPool();
    }

//    /**
//     * 切换回主线程
//     */
//    public void runOnUiThread(Runnable run) {
//        uiHandler.post(run);
//    }


}