minix/lib/libc/sys-minix/clock_gettime.c
David van Moolenbroek 24ec0d73b5 Clean up interface to PM and VFS
- introduce new call numbers, names, and field aliases;
- initialize request messages to zero for all ABI calls;
- format callnr.h in the same way as com.h;
- redo call tables in both servers;
- remove param.h namespace pollution in the servers;
- make brk(2) go to VM directly, rather than through PM;
- remove obsolete BRK, UTIME, and WAIT calls;
- clean up path copying routine in VFS;
- move remaining system calls from libminlib to libc;
- correct some errno-related mistakes in libc routines.

Change-Id: I2d8ec5d061cd7e0b30c51ffd77aa72ebf84e2565
2014-03-01 09:05:01 +01:00

27 lines
496 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_gettime, __clock_gettime50);
#endif
int clock_gettime(clockid_t clock_id, struct timespec *res)
{
message m;
memset(&m, 0, sizeof(m));
m.PM_TIME_CLK_ID = (clockid_t) clock_id;
if (_syscall(PM_PROC_NR, PM_CLOCK_GETTIME, &m) < 0)
return -1;
res->tv_sec = (time_t) m.PM_TIME_SEC;
res->tv_nsec = (long) m.PM_TIME_USEC;
return 0;
}