diff options
Diffstat (limited to 'mach.c')
-rw-r--r-- | mach.c | 22 |
1 files changed, 22 insertions, 0 deletions
@@ -0,0 +1,22 @@ | |||
1 | #ifdef __MACH__ | ||
2 | #include "mach.h" | ||
3 | |||
4 | /* there is no clock_gettime on MacOS platform */ | ||
5 | int clock_gettime(int clk_id, struct timespec *t) | ||
6 | { | ||
7 | mach_timebase_info_data_t timebase; | ||
8 | mach_timebase_info(&timebase); | ||
9 | |||
10 | uint64_t time; | ||
11 | |||
12 | time = mach_absolute_time(); | ||
13 | |||
14 | double nseconds = ((double)time * (double)timebase.numer) / ((double)timebase.denom); | ||
15 | double seconds = ((double)time * (double)timebase.numer) / ((double)timebase.denom * 1e9); | ||
16 | |||
17 | t->tv_sec = seconds; | ||
18 | t->tv_nsec = nseconds; | ||
19 | |||
20 | return 0; | ||
21 | } | ||
22 | #endif | ||