#include <stdio.h>
#include <string.h>
#include <sys/resource.h>
int main(int argc, char *argv[])
{
  struct rusage usage;
  int ret;
  while(1) {
    memset(&usage,0xFF,sizeof(usage));
    ret = getrusage(RUSAGE_SELF,&usage);
    if ((usage.ru_utime.tv_sec < 0) ||
	(usage.ru_stime.tv_sec < 0) ||
	(usage.ru_utime.tv_sec >= (1UL<<31)) ||
	(usage.ru_stime.tv_sec >= (1UL<<31)) ||
	(usage.ru_utime.tv_usec < 0) ||
	(usage.ru_stime.tv_usec < 0) ||
	(usage.ru_utime.tv_usec > 1000000)||
	(usage.ru_stime.tv_usec > 1000000)||
	(ret<0)) {
      printf("Unexpected rusage: %zu.%zu and %zu.%zu => %d \n",
	     usage.ru_utime.tv_sec,
	     usage.ru_utime.tv_usec,
	     usage.ru_stime.tv_sec,
	     usage.ru_stime.tv_usec,
	     ret);
    }
  }
  return 0;
}