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Core, VideoCommon: Fix crash at shutdown due to destructor ordering

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Previously, PerformanceTracker registered a callback to be updated on
emulation state changes. PerformanceTrackers live in a global variable
(g_perf_metrics) within libvideocommon. The callback was stored in a
global variable in libcore. This created a race condition at shutdown
between these libraries, when the PerfTracker's destructor tried to
unregister the callback.
Notify the PerfTracker directly from libcore, without callbacks, since
Core.cpp already references g_perf_metrics explicitly. Also rename
Core::CallOnStateChangedCallbacks to NotifyStateChanged to better
reflect what it's doing.
This commit is contained in:
Mihai Brodschi 2025-04-27 17:33:23 +03:00
parent 8ee64a84c7
commit bad78cfed4
8 changed files with 25 additions and 20 deletions
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13
Source/Core/VideoCommon/PerformanceTracker.cpp
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@ -23,17 +23,9 @@ PerformanceTracker::PerformanceTracker(const std::optional<std::string> log_name
const std::optional<DT> sample_window_duration)
: m_log_name{log_name}, m_sample_window_duration{sample_window_duration}
{
m_on_state_changed_handle =
Core::AddOnStateChangedCallback([this](Core::State state) { m_is_last_time_sane = false; });
Reset();
}
PerformanceTracker::~PerformanceTracker()
{
Core::RemoveOnStateChangedCallback(&m_on_state_changed_handle);
}
void PerformanceTracker::Reset()
{
m_raw_dts.Clear();
@ -135,6 +127,11 @@ DT PerformanceTracker::GetLastRawDt() const
return m_last_raw_dt;
}
void PerformanceTracker::InvalidateLastTime()
{
m_is_last_time_sane = false;
}
void PerformanceTracker::ImPlotPlotLines(const char* label) const
{
// "quality" graph uses twice as many points.