最近碰到一个问题，monit进入死循环：
https://blog.csdn.net/qq_36428903/article/details/145702940

如果看里面的详细代码：

static inline long long _usleep(long long microseconds, bool complete) {
   
    struct timespec req, rem;
    req.tv_sec = microseconds / 1000000LL;
    req.tv_nsec = (microseconds % 1000000LL) * 1000LL;