Process.OSX: fix thread safety (#100260)

Without this fix, it was possible for another thread to see an incorrect (zero) value of s_timeBase_numer because of a race condition.
dotnet · Mar 26, 2024 · 78a895f · 78a895f
1 parent dc553fe
commit 78a895f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.OSX.cs b/src/libraries/System.Diagnostics.Process/src/System/Diagnostics/Process.OSX.cs
@@ -117,8 +117,8 @@ private static TimeSpan MapTime(ulong sysTime)
             if (denom == default)
             {
                 Interop.libSystem.mach_timebase_info_data_t timeBase = GetTimeBase();
-                s_timeBase_denom = denom = timeBase.denom;
                 s_timeBase_numer = timeBase.numer;
+                s_timeBase_denom = denom = timeBase.denom;
             }
             uint numer = s_timeBase_numer;