diff options
| -rw-r--r-- | opentrack-compat/timer.hpp | 35 |
1 files changed, 25 insertions, 10 deletions
diff --git a/opentrack-compat/timer.hpp b/opentrack-compat/timer.hpp index 9523c8c9..300a883c 100644 --- a/opentrack-compat/timer.hpp +++ b/opentrack-compat/timer.hpp @@ -27,8 +27,9 @@ static inline void opentrack_clock_gettime(int, struct timespec* ts) (void) QueryPerformanceCounter(&d); - using t = long long; - const long long part = t(d.QuadPart / ((long double)freq.QuadPart) * 1000000000.L); + 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); @@ -59,27 +60,41 @@ class Timer { private: struct timespec state; - long long conv(const struct timespec& cur) const + long long conv_nsecs(const struct timespec& cur) const { return (cur.tv_sec - state.tv_sec) * 1000000000LL + (cur.tv_nsec - state.tv_nsec); } + 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; + } public: - Timer() { + Timer() + { start(); } - void start() { + void start() + { clock_gettime(CLOCK_MONOTONIC, &state); } - long long elapsed() const { + long long elapsed_nsecs() const + { + struct timespec cur; + clock_gettime(CLOCK_MONOTONIC, &cur); + return conv_nsecs(cur); + } + long elapsed_usecs() const + { struct timespec cur; clock_gettime(CLOCK_MONOTONIC, &cur); - return conv(cur); + return long(conv_usecs(cur)); } - long elapsed_ms() const { - return long(elapsed() / 1000000LL); + long elapsed_ms() const + { + return elapsed_usecs() / 1000L; } double elapsed_seconds() const { - return elapsed() * 1e-9; + return double(elapsed_nsecs() * 1e-9L); } }; |