1 #include "timer.h"

2

3 #if defined(__APPLE__) && !defined(__unix__)

4 #define __unix__

5 #endif

6

7 #ifdef __unix__

8 #include <time.h>

9 #include <unistd.h>

10 #include <sys/time.h>

11

12 #ifdef CLOCK_MONOTONIC

13 unsigned long get_time_msec(void)

14 {

15 struct timespec ts;

16 static struct timespec ts0;

17

18 clock_gettime(CLOCK_MONOTONIC, &ts);

19 if(ts0.tv_sec == 0 && ts0.tv_nsec == 0) {

20 ts0 = ts;

21 return 0;

22 }

23 return (ts.tv_sec - ts0.tv_sec) * 1000 + (ts.tv_nsec - ts0.tv_nsec) / 1000000;

24 }

25 #else /* no fancy POSIX clocks, fallback to good'ol gettimeofday */

26 unsigned long get_time_msec(void)

27 {

28 struct timeval tv;

29 static struct timeval tv0;

30

31 gettimeofday(&tv, 0);

32 if(tv0.tv_sec == 0 && tv0.tv_usec == 0) {

33 tv0 = tv;

34 return 0;

35 }

36 return (tv.tv_sec - tv0.tv_sec) * 1000 + (tv.tv_usec - tv0.tv_usec) / 1000;

37 }

38 #endif /* !posix clock */

39

40 void sleep_msec(unsigned long msec)

41 {

42 usleep(msec * 1000);

43 }

44 #endif

45

46 #ifdef WIN32

47 #include <windows.h>

48 #pragma comment(lib, "winmm.lib")

49

50 unsigned long get_time_msec(void)

51 {

52 return timeGetTime();

53 }

54

55 void sleep_msec(unsigned long msec)

56 {

57 Sleep(msec);

58 }

59 #endif

60

61 double get_time_sec(void)

62 {

63 return get_time_msec() / 1000.0f;

64 }

65

66 void sleep_sec(double sec)

67 {

68 if(sec > 0.0f) {

69 sleep_msec(sec * 1000.0f);

70 }

71 }