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work around lack of clock_gettime in os x
/*
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;
}
@MacDada
MacDada commented Jan 23, 2014

thx, it works! ;-)

@danielgindi

Thanks!!!

@danielgindi

I really appreciate it.

@kazumaishio

Thanks!!!

@wujun
wujun commented Feb 3, 2015

thanks your code, thanks

@Superlokkus

THX

@tawantinsuyu

Awesome! Thanks

@matrumz
matrumz commented Nov 17, 2015

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

@raygit
raygit commented Nov 24, 2015

thanks for sharing,appreciate it.

@rraallvv

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

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