work around lack of clock_gettime in os x

current_utc_time.c

/* 
author: jbenet
os x, compile with: gcc -o testo test.c 
linux, compile with: gcc -o testo test.c -lrt
*/

#include <time.h>
#include <sys/time.h>
#include <stdio.h>

#ifdef __MACH__
#include <mach/clock.h>
#include <mach/mach.h>
#endif


void current_utc_time(struct timespec *ts) {

#ifdef __MACH__ // OS X does not have clock_gettime, use clock_get_time
  clock_serv_t cclock;
  mach_timespec_t mts;
  host_get_clock_service(mach_host_self(), CALENDAR_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;
#else
  clock_gettime(CLOCK_REALTIME, ts);
#endif

}


int main(int argc, char **argv) {

  struct timespec ts;
  current_utc_time(&ts);

  printf("s:  %lu\n", ts.tv_sec);
  printf("ns: %lu\n", ts.tv_nsec);
  return 0;

}

thx, it works! ;-)

thx, it works! ;-)

Thanks!!!

Thanks!!!

I really appreciate it.

I really appreciate it.

Thanks!!!

Thanks!!!

thanks your code, thanks

thanks your code, thanks

THX

THX

Awesome! Thanks

Awesome! Thanks

See also: https://gist.github.com/alfwatt/3588c5aa1f7a1ef7a3bb

See also: https://gist.github.com/alfwatt/3588c5aa1f7a1ef7a3bb

Many thanks. My senior project is that much closer to completion!

Many thanks. My senior project is that much closer to completion!

thanks for sharing,appreciate it.

thanks for sharing,appreciate it.

I need the return value in clock_get_time(..), how can it be done os OS X?
For details please see https://github.com/microflo/microflo/blob/master/microflo/linux.hpp#L68

I need the return value in clock_get_time(..), how can it be done os OS X?
For details please see https://github.com/microflo/microflo/blob/master/microflo/linux.hpp#L68

Thanks for sharing. This code helps me a lot.

Thanks for sharing. This code helps me a lot.