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Extend packet header with frame processing latency

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This commit is contained in:
ns6089
2023-04-18 19:03:52 +03:00
committed by Cameron Gutman
parent 590733b313
commit bd533dc31b
9 changed files with 101 additions and 7 deletions
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21
src/platform/windows/misc.cpp
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@ -1020,4 +1020,25 @@ namespace platf {
return std::make_unique<qos_t>(flow_id);
}
int64_t
qpc_counter() {
LARGE_INTEGER performace_counter;
if (QueryPerformanceCounter(&performace_counter)) return performace_counter.QuadPart;
return 0;
}
std::chrono::nanoseconds
qpc_time_difference(int64_t performance_counter1, int64_t performance_counter2) {
auto get_frequency = []() {
LARGE_INTEGER frequency;
frequency.QuadPart = 0;
QueryPerformanceFrequency(&frequency);
return frequency.QuadPart;
};
static const double frequency = get_frequency();
if (frequency) {
return std::chrono::nanoseconds((int64_t) ((performance_counter1 - performance_counter2) * frequency / std::nano::den));
}
return {};
}
} // namespace platf