/*** 
 * @Description: 
 * @Author: LeoTao
 * @Date: 2023-10-07 03:09:39
 * @LastEditTime: 2023-10-07 03:20:48
 */
#pragma once
namespace CurrentThread{
    extern __thread int t_cachedTid;

    void cacheTid();

    inline int tid(){
        //如果当前线程id没有被获取
        if(__builtin_expect(t_cachedTid == 0, 0)){
            cacheTid();
        }
        return t_cachedTid;
    }
}