Annotation of embedaddon/sudo/compat/clock_gettime.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (c) 2014 Todd C. Miller <Todd.Miller@courtesan.com>
3: *
4: * Permission to use, copy, modify, and distribute this software for any
5: * purpose with or without fee is hereby granted, provided that the above
6: * copyright notice and this permission notice appear in all copies.
7: *
8: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15: */
16:
17: #include <config.h>
18:
19: #if !defined(HAVE_CLOCK_GETTIME)
20:
21: #include <sys/types.h>
22: #include <sys/time.h>
23:
24: #include <errno.h>
25: #include <stdio.h>
26: #ifdef TIME_WITH_SYS_TIME
27: # include <time.h>
28: #endif
29: #ifndef HAVE_STRUCT_TIMESPEC
30: # include "compat/timespec.h"
31: #endif
32:
33: #include "missing.h"
34:
35: #ifdef __MACH__
36: # include <mach/mach.h>
37: # include <mach/mach_time.h>
38: # include <mach/clock.h>
39: #endif
40:
41: /*
42: * Trivial clock_gettime() that supports CLOCK_REALTIME
43: * (and CLOCK_MONOTONIC on Mach).
44: */
45: int
46: clock_gettime(clockid_t clock_id, struct timespec *ts)
47: {
48:
49: switch (clock_id) {
50: #ifdef __MACH__
51: case CLOCK_MONOTONIC:
52: {
53: uint64_t abstime, nsec;
54: static mach_timebase_info_data_t timebase_info;
55:
56: if (timebase_info.denom == 0)
57: (void) mach_timebase_info(&timebase_info);
58: abstime = mach_absolute_time();
59: nsec = abstime * timebase_info.numer / timebase_info.denom;
60: ts->tv_sec = nsec / 1000000000;
61: ts->tv_nsec = nsec % 1000000000;
62: return 0;
63: }
64: #endif
65: case CLOCK_REALTIME:
66: {
67: struct timeval tv;
68:
69: gettimeofday(&tv, NULL);
70: ts->tv_sec = tv.tv_sec;
71: ts->tv_nsec = tv.tv_usec * 1000;
72: return 0;
73: }
74: default:
75: errno = EINVAL;
76: return -1;
77: }
78: }
79:
80: #endif /* !HAVE_CLOCK_GETTIME */
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>