minix3/lib/libc/sys/clock_getres.c

28 lines
479 B
C

#include <sys/cdefs.h>
#include <lib.h>
#include "namespace.h"
#include <string.h>
#include <sys/time.h>
#ifdef __weak_alias
__weak_alias(clock_getres, __clock_getres50);
#endif
int clock_getres(clockid_t clock_id, struct timespec *res)
{
message m;
memset(&m, 0, sizeof(m));
m.m_lc_pm_time.clk_id = clock_id;
if (_syscall(PM_PROC_NR, PM_CLOCK_GETRES, &m) < 0)
return -1;
res->tv_sec = m.m_pm_lc_time.sec;
res->tv_nsec = m.m_pm_lc_time.nsec;
return 0;
}