minix/servers/pfs/utility.c
Thomas Cort e67fc5771d libc: add clock_getres()/clock_gettime() system calls.
In order to make it more clear that ticks should be used for timers
and realtime should be used for timestamps / displaying the date/time,
getuptime() was renamed to getticks() and getuptime2() was renamed to
getuptime().

Servers, drivers, libraries, tests, etc that use getuptime()/getuptime2()
have been updated. In instances where a realtime was calculated, the
calculation was changed to use realtime.

System calls clock_getres() and clock_gettime() were added to PM/libc.
2013-04-04 15:04:53 +02:00

34 lines
1 KiB
C

#include "fs.h"
/*===========================================================================*
* no_sys *
*===========================================================================*/
int no_sys(message *pfs_m_in, message *pfs_m_out)
{
/* Somebody has used an illegal system call number */
printf("no_sys: invalid call 0x%x to pfs\n", req_nr);
return(EINVAL);
}
/*===========================================================================*
* clock_time *
*===========================================================================*/
time_t clock_time()
{
/* This routine returns the time in seconds since 1.1.1970. MINIX is an
* astrophysically naive system that assumes the earth rotates at a constant
* rate and that such things as leap seconds do not exist.
*/
int r;
clock_t uptime; /* Uptime in ticks */
clock_t realtime;
time_t boottime;
if ((r = getuptime(&uptime, &realtime, &boottime)) != OK)
panic("clock_time: getuptme2 failed: %d", r);
return( (time_t) (boottime + (realtime/sys_hz())));
}