#ifdef __MACH__
#include <time.h>
#include <mach/clock.h>
#include <mach/mach.h>
void hs_clock_darwin_gettime(clock_id_t clock, struct timespec *ts)
{
// OS X does not have clock_gettime, use clock_get_time
// see http://stackoverflow.com/questions/11680461/monotonic-clock-on-osx
clock_serv_t cclock;
mach_timespec_t mts;
host_get_clock_service(mach_host_self(), clock, &cclock);
clock_get_time(cclock, &mts);
mach_port_deallocate(mach_task_self(), cclock);
ts->tv_sec = mts.tv_sec;
ts->tv_nsec = mts.tv_nsec;
}
void hs_clock_darwin_getres(clock_id_t clock, struct timespec *ts)
{
clock_serv_t cclock;
int nsecs;
mach_msg_type_number_t count;
host_get_clock_service(mach_host_self(), clock, &cclock);
clock_get_attributes(cclock, CLOCK_GET_TIME_RES, (clock_attr_t)&nsecs, &count);
mach_port_deallocate(mach_task_self(), cclock);
}
#endif /* __MACH__ */