diff options
Diffstat (limited to 'gr-qtgui/lib/highResTimeFunctions.h')
-rw-r--r-- | gr-qtgui/lib/highResTimeFunctions.h | 284 |
1 files changed, 12 insertions, 272 deletions
diff --git a/gr-qtgui/lib/highResTimeFunctions.h b/gr-qtgui/lib/highResTimeFunctions.h index de08d8adc..18cf66ede 100644 --- a/gr-qtgui/lib/highResTimeFunctions.h +++ b/gr-qtgui/lib/highResTimeFunctions.h @@ -23,301 +23,41 @@ #ifndef HIGH_RES_TIME_FUNCTIONS_H #define HIGH_RES_TIME_FUNCTIONS_H -#include <ctime> -#include <sys/time.h> #include <cmath> -/* Requires the librt and libm libraries */ +#include <gruel/high_res_timer.h> -typedef timespec highres_timespec; - -static const long NSEC_PER_SEC = 1000000000L; - -static inline bool -highres_timespec_greater(const highres_timespec* t1, - const highres_timespec* t0) -{ - return ((t1->tv_sec > t0->tv_sec) || - ((t1->tv_sec == t0->tv_sec) && - (t1->tv_nsec > t0->tv_nsec))); -} - -static inline bool -highres_timespec_greater(const highres_timespec t1, - const highres_timespec t0) -{ - return ((t1.tv_sec > t0.tv_sec) || - ((t1.tv_sec == t0.tv_sec) && - (t1.tv_nsec > t0.tv_nsec))); -} - -static inline bool -highres_timespec_less(const highres_timespec* t1, - const highres_timespec* t0) -{ - return ((t1->tv_sec < t0->tv_sec) || - ((t1->tv_sec == t0->tv_sec) && - (t1->tv_nsec < t0->tv_nsec))); -} - -static inline bool -highres_timespec_less(const highres_timespec t1, - const highres_timespec t0) -{ - return ((t1.tv_sec < t0.tv_sec) || - ((t1.tv_sec == t0.tv_sec) && - (t1.tv_nsec < t0.tv_nsec))); -} - -static inline bool -highres_timespec_equal(const highres_timespec* t1, - const highres_timespec* t0) -{ - return ((t1->tv_sec == t0->tv_sec) && - (t1->tv_nsec == t0->tv_nsec)); -} - -static inline bool -highres_timespec_equal(const highres_timespec t1, - const highres_timespec t0) -{ - return ((t1.tv_sec == t0.tv_sec) && - (t1.tv_nsec == t0.tv_nsec)); -} - -static inline void -highres_timespec_reset(highres_timespec* ret) -{ - ret->tv_sec = 0; - ret->tv_nsec = 0; -} - -static inline void -set_normalized_highres_timespec(highres_timespec *ts, - time_t sec, long nsec) -{ - while (nsec > NSEC_PER_SEC) { - nsec -= NSEC_PER_SEC; - ++sec; - } - while(nsec < 0) { - nsec += NSEC_PER_SEC; - --sec; - } - ts->tv_sec = sec; - ts->tv_nsec = nsec; -} - -static inline highres_timespec -convert_to_highres_timespec(const double timeValue) -{ - highres_timespec ret; - double seconds = 0; - long nsec = static_cast<long>(modf(timeValue, &seconds) * - static_cast<double>(NSEC_PER_SEC)); - time_t sec = static_cast<time_t>(seconds); - - set_normalized_highres_timespec(&ret, sec, nsec); - - return ret; -} - -static inline double -convert_from_highres_timespec(const highres_timespec actual) -{ - return (static_cast<double>(actual.tv_sec) + - (static_cast<double>(actual.tv_nsec) / - static_cast<double>(NSEC_PER_SEC))); -} - -static inline void -highres_timespec_add(highres_timespec *ret, - const highres_timespec* t1, - const highres_timespec* t0) -{ - time_t sec = t1->tv_sec + t0->tv_sec; - long nsec = t1->tv_nsec + t0->tv_nsec; - - set_normalized_highres_timespec(ret, sec, nsec); -} - -static inline void -highres_timespec_add(highres_timespec *ret, - const highres_timespec t1, - const highres_timespec t0) -{ - return highres_timespec_add(ret, &t1, &t0); -} - -static inline highres_timespec -highres_timespec_add(const highres_timespec t1, - const highres_timespec t0) -{ - highres_timespec ret; - highres_timespec_add(&ret, &t1, &t0); - return ret; -} - -static inline highres_timespec -highres_timespec_add(const highres_timespec t1, - const double time0) -{ - highres_timespec ret; - highres_timespec t0; - t0 = convert_to_highres_timespec(time0); - - highres_timespec_add(&ret, &t1, &t0); - - return ret; -} - -static inline void -highres_timespec_subtract(highres_timespec *ret, - const highres_timespec* t1, - const highres_timespec* t0) -{ - time_t sec = t1->tv_sec - t0->tv_sec; - long nsec = t1->tv_nsec - t0->tv_nsec; - - set_normalized_highres_timespec(ret, sec, nsec); -} +typedef gruel::high_res_timer_type highres_timespec; static inline void -highres_timespec_subtract(highres_timespec *ret, - const highres_timespec t1, - const highres_timespec t0) +highres_timespec_reset(highres_timespec &ret) { - return highres_timespec_subtract(ret, &t1, &t0); + ret = 0; } static inline highres_timespec -highres_timespec_subtract(const highres_timespec t1, - const highres_timespec t0) -{ - highres_timespec ret; - highres_timespec_subtract(&ret, &t1, &t0); - return ret; -} - -static inline highres_timespec -highres_timespec_subtract(const highres_timespec t1, - const double time0) -{ - highres_timespec ret; - highres_timespec t0; - t0 = convert_to_highres_timespec(time0); - - highres_timespec_subtract(&ret, &t1, &t0); - - return ret; -} - -static inline double -diff_highres_timespec(highres_timespec* ret, - const highres_timespec *t1, - const highres_timespec* t0) -{ - highres_timespec actual; - time_t sec = 0; - long nsec = 0; - - if(highres_timespec_greater(t1, t0)){ - sec = t1->tv_sec - t0->tv_sec; - nsec = t1->tv_nsec - t0->tv_nsec; - - set_normalized_highres_timespec(&actual, sec, nsec); - - if(ret != NULL){ - ret->tv_sec = actual.tv_sec; - ret->tv_nsec = actual.tv_nsec; - } - - return convert_from_highres_timespec(actual); - } - else{ - sec = t0->tv_sec - t1->tv_sec; - nsec = t0->tv_nsec - t1->tv_nsec; - - // Do nothing with the ret value as the ret value - // would have to store a negative, which it can't. - - set_normalized_highres_timespec(&actual, sec, nsec); - - return (-convert_from_highres_timespec(actual)); - } -} - -static inline double -diff_highres_timespec(highres_timespec* ret, - const highres_timespec t1, - const highres_timespec t0) -{ - return diff_highres_timespec(ret, &t1, &t0); -} - -static inline double -diff_highres_timespec(const highres_timespec t1, - const highres_timespec t0) +highres_timespec_add(const highres_timespec &t1, double t) { - return diff_highres_timespec(NULL, &t1, &t0); + return t1 + t*gruel::high_res_timer_tps(); } - static inline double -diff_highres_timespec(const highres_timespec* t1, - const highres_timespec* t0) +diff_highres_timespec(const highres_timespec &t1, + const highres_timespec &t0) { - return diff_highres_timespec(NULL, t1, t0); + return std::abs(double(t1 - t0)/gruel::high_res_timer_tps()); } - -#ifdef CLOCK_REALTIME -// If we can use clock_gettime, use it; -// otherwise, use gettimeofday -static inline void -get_highres_clock(highres_timespec* ret) -{ - if(clock_gettime(CLOCK_REALTIME, ret) != 0){ - // Unable to get high resolution time - - // fail over to low resolution time - timeval lowResTime; - gettimeofday(&lowResTime, NULL); - ret->tv_sec = lowResTime.tv_sec; - ret->tv_nsec = lowResTime.tv_usec*1000; - } -} - -#else - -// Trick timer functions into thinking it has an nsec timer -// but only use the low resolution (usec) timer. -static inline void -get_highres_clock(highres_timespec* ret) -{ - timeval lowResTime; - gettimeofday(&lowResTime, NULL); - ret->tv_sec = lowResTime.tv_sec; - ret->tv_nsec = lowResTime.tv_usec*1000; -} -#endif - static inline highres_timespec get_highres_clock() { - highres_timespec ret; - get_highres_clock(&ret); - return ret; + return gruel::high_res_timer_now(); } static inline bool -highres_timespec_empty(const highres_timespec* ret) +highres_timespec_empty(const highres_timespec &t) { - return ( (ret->tv_sec == 0 ) && (ret->tv_nsec == 0) ); + return t == 0; } -static inline bool -highres_timespec_empty(const highres_timespec ret) -{ - return highres_timespec_empty(&ret); -} #endif /* HIGH_RES_TIME_FUNCTIONS_H */ |