线程池

最新推荐文章于 2025-10-06 22:18:13 发布

原创最新推荐文章于 2025-10-06 22:18:13 发布 · 263 阅读

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package com.cluster.demo.utils.test;

import java.util.concurrent.atomic.AtomicInteger;

public class Snippet {
   public static void main(String args[]){
   //int a = Integer.MAX_VALUE; //integer 32bit
       int num=-1;
       int a = num ;
       System.out.println(getFullBinaryString(a));
   int a1 = num << 29; //做移动29
   System.out.println(getFullBinaryString(a1));
   //01111111 11111111 11111111 11111111
   AtomicInteger ctl = new AtomicInteger(ctlOf(num, 0));
   System.out.println("ctl:"+ctl.get());
   System.out.println("ctl.get():"+workerCountOf(ctl.get())+"getFullBinaryString:"+getFullBinaryString(workerCountOf(ctl.get())));
   //011 高3位表示"线程池状态"
   //11111 11111111 11111111 11111111 低29位表示"线程池中的任务数量
   ctlOf(1,0);

   }
   public static String getFullBinaryString(int num){
   String result = Integer.toBinaryString(num);
   System.out.println("toBinaryString:"+result);
   int count = 32-result.length();
   System.out.println("count:"+count);
   for (int i = 0;i<count;i++){
   result=0+result;
   }
   return result;
   }
   private static int ctlOf(int rs, int wc) {
       System.out.println("rs:"+getFullBinaryString(rs));
       System.out.println("wc:"+getFullBinaryString(wc));
       System.out.println("rs | wc"+getFullBinaryString(rs | wc));
       return rs | wc;
       }
   private static final int CAPACITY = (1 << 29)-1;
   private static int workerCountOf(int c) {
       System.out.println("c:"+getFullBinaryString(c));
       System.out.println("CAPACITY:"+getFullBinaryString(CAPACITY));
       return c & CAPACITY; }
}