clock_getcpuclockid.c raw

   1  #include <time.h>
   2  #include <errno.h>
   3  #include <unistd.h>
   4  #include "syscall.h"
   5  
   6  int clock_getcpuclockid(pid_t pid, clockid_t *clk)
   7  {
   8  	struct timespec ts;
   9  	clockid_t id = (-pid-1)*8U + 2;
  10  	int ret = __syscall(SYS_clock_getres, id, &ts);
  11  	if (ret) return -ret;
  12  	*clk = id;
  13  	return 0;
  14  }
  15