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Common: Implement WallClock Interface and implement a native clock for x64

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This commit is contained in:
Fernando Sahmkow 2020-02-09 16:53:22 -04:00
parent 0f8e5a1465
commit 234b5ff6a9
10 changed files with 378 additions and 40 deletions
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21
src/core/host_timing.cpp
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@ -35,7 +35,11 @@ struct CoreTiming::Event {
}
};
CoreTiming::CoreTiming() = default;
CoreTiming::CoreTiming() {
Common::WallClock* wall = Common::CreateBestMatchingClock(Core::Timing::BASE_CLOCK_RATE, Core::Timing::CNTFREQ);
clock = std::unique_ptr<Common::WallClock>(wall);
}
CoreTiming::~CoreTiming() = default;
void CoreTiming::ThreadEntry(CoreTiming& instance) {
@ -46,7 +50,6 @@ void CoreTiming::Initialize() {
event_fifo_id = 0;
const auto empty_timed_callback = [](u64, s64) {};
ev_lost = CreateEvent("_lost_event", empty_timed_callback);
start_time = std::chrono::steady_clock::now();
timer_thread = std::make_unique<std::thread>(ThreadEntry, std::ref(*this));
}
@ -108,13 +111,11 @@ void CoreTiming::UnscheduleEvent(const std::shared_ptr<EventType>& event_type, u
}
u64 CoreTiming::GetCPUTicks() const {
std::chrono::nanoseconds time_now = GetGlobalTimeNs();
return Core::Timing::nsToCycles(time_now);
return clock->GetCPUCycles();
}
u64 CoreTiming::GetClockTicks() const {
std::chrono::nanoseconds time_now = GetGlobalTimeNs();
return Core::Timing::nsToClockCycles(time_now);
return clock->GetClockCycles();
}
void CoreTiming::ClearPendingEvents() {
@ -174,15 +175,11 @@ void CoreTiming::Advance() {
}
std::chrono::nanoseconds CoreTiming::GetGlobalTimeNs() const {
sys_time_point current = std::chrono::steady_clock::now();
auto elapsed = current - start_time;
return std::chrono::duration_cast<std::chrono::nanoseconds>(elapsed);
return clock->GetTimeNS();
}
std::chrono::microseconds CoreTiming::GetGlobalTimeUs() const {
sys_time_point current = std::chrono::steady_clock::now();
auto elapsed = current - start_time;
return std::chrono::duration_cast<std::chrono::microseconds>(elapsed);
return clock->GetTimeUS();
}
} // namespace Core::Timing