clock_gettime alternative in Mac OS X

by

After hours of perusing different answers, blogs, and headers, I found a portable way to get the current time:

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

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



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

or check out this gist: https://gist.github.com/1087739

Hope this saves someone time. Cheers!

More Related Contents:

  1. C: Different implementation of clock() in Windows and other OS?
  2. HOW I CALCULATE TIME IN C PROGRAM
  3. Can’t compile a C program on a Mac after upgrading to Catalina 10.15
  4. What’s the correct way to use printf to print a clock_t?
  5. How do you do non-blocking console I/O on Linux in C?
  6. Measure time in Linux – time vs clock vs getrusage vs clock_gettime vs gettimeofday vs timespec_get?
  7. sem_init on OS X
  8. Get a timestamp in C in microseconds?
  9. Get the current time in C [duplicate]
  10. How to convert ASCII character to CGKeyCode?
  11. How can I run a C program on Mac OS X using Terminal?
  12. Creating static Mac OS X C build
  13. GCC left shift overflow
  14. How to get network adapter stats in linux/Mac OSX?
  15. Is a Linux executable “compatible” with OS X?
  16. Calculating elapsed time in a C program in milliseconds
  17. implement time delay in c
  18. How to print time difference in accuracy of milliseconds and nanoseconds from C in Linux?
  19. Get other process’ argv in OS X using C
  20. How to print time in format: 2009‐08‐10 18:17:54.811
  21. Programmatically retrieving the absolute path of an OS X command-line app
  22. why C clock() returns 0
  23. What is time(NULL) in C?
  24. How to convert from UTC to local time in C?
  25. Time stamp in the C programming language
  26. Why does C program print 0D instead of 0? (When EOF sent as Ctrl+D) [duplicate]
  27. Equivalent to Windows getch() for Mac/Linux crashes
  28. Compiling a C program that uses OpenGl in Mac OS X
  29. library not found for -lrt with QtCreator [mac os]
  30. Swift: How to call a C function loaded from a dylib

Leave a Comment