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uloop: add a clock_gettime() implementation for mac os x

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
This commit is contained in:
Felix Fietkau 2013-01-06 02:42:58 +01:00
parent 76f584c761
commit aa4f3bde06
2 changed files with 51 additions and 0 deletions
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40
utils.c
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@ -52,3 +52,43 @@ void *__calloc_a(size_t len, ...)
return ret;
}
#ifdef __APPLE__
#include <mach/mach_time.h>
static void clock_gettime_realtime(struct timespec *tv)
{
struct timeval _tv;
gettimeofday(&_tv, NULL);
tv->tv_sec = _tv.tv_sec;
tv->tv_nsec = _tv.tv_usec * 1000;
}
static void clock_gettime_monotonic(struct timespec *tv)
{
mach_timebase_info_data_t info;
float sec;
uint64_t val;
mach_timebase_info(&info);
val = mach_absolute_time();
tv->tv_nsec = (val * info.numer / info.denom) % 1000000000;
sec = val;
sec *= info.numer;
sec /= info.denom;
sec /= 1000000000;
tv->tv_sec = sec;
}
void clock_gettime(int type, struct timespec *tv)
{
if (type == CLOCK_REALTIME)
return clock_gettime_realtime(tv);
else
return clock_gettime_monotonic(tv);
}
#endif

11
utils.h
View file

@ -20,6 +20,8 @@
#define __LIBUBOX_UTILS_H
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
/*
* calloc_a(size_t len, [void **addr, size_t len,...], NULL)
@ -52,4 +54,13 @@ extern int __BUILD_BUG_ON_CONDITION_FAILED;
#define BUILD_BUG_ON __BUILD_BUG_ON
#endif
#ifdef __APPLE__
#define CLOCK_REALTIME 0
#define CLOCK_MONOTONIC 1
void clock_gettime(int type, struct timespec *tv);
#endif
#endif