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fixed race condition around s_sysTraceThread

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This commit is contained in:
Marcos Slomp
2025-12-02 16:19:20 -08:00
parent 29e8bbbbb2
commit c44beaac28
1 changed files with 9 additions and 7 deletions
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16
public/client/TracyProfiler.cpp
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@@ -933,7 +933,7 @@ static Thread* s_symbolThread;
std::atomic<bool> s_symbolThreadGone { false };
#endif
#ifdef TRACY_HAS_SYSTEM_TRACING
static Thread* s_sysTraceThread = nullptr;
static std::atomic<Thread*> s_sysTraceThread = nullptr;
#endif
#if defined __linux__ && !defined TRACY_NO_CRASH_HANDLER
@@ -1184,20 +1184,22 @@ static void StartSystemTracing( int64_t& samplingPeriod )
}
else if( SysTraceStart( samplingPeriod ) )
{
s_sysTraceThread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(s_sysTraceThread) Thread( SysTraceWorker, nullptr );
Thread* sysTraceThread = (Thread*)tracy_malloc( sizeof( Thread ) );
new(sysTraceThread) Thread(SysTraceWorker, nullptr);
Thread* prev = s_sysTraceThread.exchange(sysTraceThread);
assert(prev == nullptr);
std::this_thread::sleep_for( std::chrono::milliseconds( 1 ) );
}
}
static void StopSystemTracing()
{
if( s_sysTraceThread )
Thread* sysTraceThread = s_sysTraceThread.exchange(nullptr);
if( sysTraceThread )
{
SysTraceStop();
s_sysTraceThread->~Thread();
tracy_free( s_sysTraceThread );
s_sysTraceThread = nullptr;
sysTraceThread->~Thread();
tracy_free( sysTraceThread );
}
}
#endif