diff options
Diffstat (limited to 'compat')
| -rw-r--r-- | compat/timer.hpp | 109 |
1 files changed, 61 insertions, 48 deletions
diff --git a/compat/timer.hpp b/compat/timer.hpp index b01e5f38..ab1ec6b3 100644 --- a/compat/timer.hpp +++ b/compat/timer.hpp @@ -11,49 +11,11 @@ #if defined (_WIN32) # include <windows.h> -# ifndef CLOCK_MONOTONIC -# define CLOCK_MONOTONIC -1 -# endif -static inline void opentrack_clock_gettime(int, struct timespec* ts) -{ - static LARGE_INTEGER freq; - - if (!freq.QuadPart) - (void) QueryPerformanceFrequency(&freq); - - LARGE_INTEGER d; - - (void) QueryPerformanceCounter(&d); - - using ll = long long; - using ld = long double; - const long long part = ll(d.QuadPart / ld(freq.QuadPart) * 1000000000.L); - using t_s = decltype(ts->tv_sec); - using t_ns = decltype(ts->tv_nsec); - - ts->tv_sec = t_s(part / 1000000000LL); - ts->tv_nsec = t_ns(part % 1000000000LL); -} -# define clock_gettime opentrack_clock_gettime -#else -# if defined(__MACH__) -# define CLOCK_MONOTONIC 0 -# include <inttypes.h> -# include <mach/mach_time.h> -static inline void clock_gettime(int, struct timespec* ts) -{ - static mach_timebase_info_data_t sTimebaseInfo; - uint64_t state, nsec; - if ( sTimebaseInfo.denom == 0 ) { - (void) mach_timebase_info(&sTimebaseInfo); - } - state = mach_absolute_time(); - nsec = state * sTimebaseInfo.numer / sTimebaseInfo.denom; - ts->tv_sec = nsec / 1000000000L; - ts->tv_nsec = nsec % 1000000000L; -} -# endif +#elif defined(__MACH__) +# include <inttypes.h> +# include <mach/mach_time.h> #endif + class Timer { private: @@ -64,27 +26,78 @@ private: } long conv_usecs(const struct timespec& cur) const { - return long(cur.tv_sec - state.tv_sec) * 1000000L + long(cur.tv_nsec - state.tv_nsec) / 1000l; + return (cur.tv_sec - state.tv_sec) * 1000000LL + (cur.tv_nsec - state.tv_nsec) / 1000; + } +#ifdef _WIN32 + static LARGE_INTEGER otr_get_clock_frequency() + { + LARGE_INTEGER freq = {}; + (void) QueryPerformanceFrequency(&freq); + return freq; } + static void otr_clock_gettime(struct timespec* ts) + { + static LARGE_INTEGER freq = otr_get_clock_frequency(); + + LARGE_INTEGER d; + + (void) QueryPerformanceCounter(&d); + + using ll = long long; + using ld = long double; + const long long part = ll(d.QuadPart / ld(freq.QuadPart) * 1000000000.L); + using t_s = decltype(ts->tv_sec); + using t_ns = decltype(ts->tv_nsec); + + ts->tv_sec = t_s(part / 1000000000LL); + ts->tv_nsec = t_ns(part % 1000000000LL); + } +#elif defined(__MACH__) + static mach_timebase_info_data_t otr_get_mach_frequency() + { + mach_timebase_info_data_t timebase_info; + (void) mach_timebase_info(&timebase_info); + return timebase_info; + } + static void otr_clock_gettime(struct timespec* ts) + { + static mach_timebase_info_data_t timebase_info = otr_get_mach_frequency(); + uint64_t state, nsec; + state = mach_absolute_time(); + nsec = state * timebase_info.numer / timebase_info.denom; + ts->tv_sec = nsec / 1000000000L; + ts->tv_nsec = nsec % 1000000000L; + } +#endif + public: Timer() { start(); } + static inline void wrap_gettime(struct timespec* state) + { +#if defined(_WIN32) || defined(__MACH__) + otr_clock_gettime(state); +#else + (void) clock_gettime(CLOCK_MONOTONIC, state); +#endif + } + void start() { - clock_gettime(CLOCK_MONOTONIC, &state); + wrap_gettime(&state); } long long elapsed_nsecs() const { - struct timespec cur; - clock_gettime(CLOCK_MONOTONIC, &cur); + struct timespec cur = {}; + wrap_gettime(&cur); return conv_nsecs(cur); } long elapsed_usecs() const { - struct timespec cur; - clock_gettime(CLOCK_MONOTONIC, &cur); + struct timespec cur = {}; + wrap_gettime(&cur); return long(conv_usecs(cur)); } long elapsed_ms() const |