#include <stdio.h>
#include <time.h>
#include <signal.h>


int msleep(unsigned long msec)
{
  struct timespec req={0};
  time_t sec=(int)(msec/1000);
  msec=msec-(sec*1000);
  req.tv_sec=sec;
  req.tv_nsec=msec*1000000L;
  while(nanosleep(&req,&req)==-1)
    continue;
  return 1;
}