1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/timer.cc	Thu Nov 14 05:27:09 2013 +0200
     1.3 @@ -0,0 +1,118 @@
     1.4 +#include "timer.h"
     1.5 +
     1.6 +#if defined(__APPLE__) && !defined(__unix__)
     1.7 +#define __unix__
     1.8 +#endif
     1.9 +
    1.10 +#ifdef __unix__
    1.11 +#include <time.h>
    1.12 +#include <unistd.h>
    1.13 +#include <sys/time.h>
    1.14 +
    1.15 +#ifdef CLOCK_MONOTONIC
    1.16 +unsigned long get_time_msec(void)
    1.17 +{
    1.18 +	struct timespec ts;
    1.19 +	static struct timespec ts0;
    1.20 +
    1.21 +	clock_gettime(CLOCK_MONOTONIC, &ts);
    1.22 +	if(ts0.tv_sec == 0 && ts0.tv_nsec == 0) {
    1.23 +		ts0 = ts;
    1.24 +		return 0;
    1.25 +	}
    1.26 +	return (ts.tv_sec - ts0.tv_sec) * 1000 + (ts.tv_nsec - ts0.tv_nsec) / 1000000;
    1.27 +}
    1.28 +#else	/* no fancy POSIX clocks, fallback to good'ol gettimeofday */
    1.29 +unsigned long get_time_msec(void)
    1.30 +{
    1.31 +	struct timeval tv;
    1.32 +	static struct timeval tv0;
    1.33 +
    1.34 +	gettimeofday(&tv, 0);
    1.35 +	if(tv0.tv_sec == 0 && tv0.tv_usec == 0) {
    1.36 +		tv0 = tv;
    1.37 +		return 0;
    1.38 +	}
    1.39 +	return (tv.tv_sec - tv0.tv_sec) * 1000 + (tv.tv_usec - tv0.tv_usec) / 1000;
    1.40 +}
    1.41 +#endif	/* !posix clock */
    1.42 +
    1.43 +void sleep_msec(unsigned long msec)
    1.44 +{
    1.45 +	usleep(msec * 1000);
    1.46 +}
    1.47 +#endif
    1.48 +
    1.49 +#ifdef WIN32
    1.50 +#include <windows.h>
    1.51 +#pragma comment(lib, "winmm.lib")
    1.52 +
    1.53 +unsigned long get_time_msec(void)
    1.54 +{
    1.55 +	return timeGetTime();
    1.56 +}
    1.57 +
    1.58 +void sleep_msec(unsigned long msec)
    1.59 +{
    1.60 +	Sleep(msec);
    1.61 +}
    1.62 +#endif
    1.63 +
    1.64 +double get_time_sec(void)
    1.65 +{
    1.66 +	return get_time_msec() / 1000.0f;
    1.67 +}
    1.68 +
    1.69 +void sleep_sec(double sec)
    1.70 +{
    1.71 +	if(sec > 0.0f) {
    1.72 +		sleep_msec(sec * 1000.0f);
    1.73 +	}
    1.74 +}
    1.75 +
    1.76 +
    1.77 +Timer::Timer()
    1.78 +{
    1.79 +	reset();
    1.80 +}
    1.81 +
    1.82 +void Timer::reset()
    1.83 +{
    1.84 +	pause_time = 0;
    1.85 +	start_time = get_time_msec();
    1.86 +}
    1.87 +
    1.88 +void Timer::start()
    1.89 +{
    1.90 +	if(!is_running()) {
    1.91 +		// resuming
    1.92 +		start_time += get_time_msec() - pause_time;
    1.93 +		pause_time = 0;
    1.94 +	}
    1.95 +}
    1.96 +
    1.97 +void Timer::stop()
    1.98 +{
    1.99 +	if(is_running()) {
   1.100 +		pause_time = get_time_msec();
   1.101 +	}
   1.102 +}
   1.103 +
   1.104 +bool Timer::is_running() const
   1.105 +{
   1.106 +	return pause_time == 0;
   1.107 +}
   1.108 +
   1.109 +unsigned long Timer::get_msec() const
   1.110 +{
   1.111 +	if(!is_running()) {
   1.112 +		// in paused state...
   1.113 +		return pause_time - start_time;
   1.114 +	}
   1.115 +	return get_time_msec() - start_time;
   1.116 +}
   1.117 +
   1.118 +double Timer::get_sec() const
   1.119 +{
   1.120 +	return (double)get_msec() / 1000.0;
   1.121 +}