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fix timing inaccuracy on windows

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This commit is contained in:
SchoenleAndi 2016-12-04 16:09:23 +01:00
parent 813e3da1f9
commit 069085c451
1 changed files with 20 additions and 13 deletions
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9
src/time.cpp
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@ -100,7 +100,14 @@ namespace g3 {
ts->tv_nsec = now.tv_usec * 1000;
return 0;
#elif(defined(WIN32) || defined(_WIN32) || defined(__WIN32__))
return timespec_get(ts, TIME_UTC);
static auto os =
std::chrono::time_point_cast<std::chrono::nanoseconds>(std::chrono::system_clock::now()).time_since_epoch() -
std::chrono::time_point_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now()).time_since_epoch();
auto now_ns = (std::chrono::time_point_cast<std::chrono::nanoseconds>(std::chrono::high_resolution_clock::now()).time_since_epoch() + os).count();
ts ->tv_sec = now_ns / 1000000000;
ts ->tv_nsec = now_ns % 1000000000;
return TIME_UTC;
#else
// ubuntu/gcc5 has no support for std::timespec_get(...) as of yet
return clock_gettime(CLOCK_REALTIME, ts);