Fix data race in activity guard (#14447)

kruall · web-flow · commit 8dba86ece922 · 2025-02-11T19:19:42.000+03:00
diff --git a/ydb/library/actors/core/activity_guard.h b/ydb/library/actors/core/activity_guard.h
@@ -45,7 +45,8 @@ class TInternalActorTypeGuard {
 
     ~TInternalActorTypeGuard() {
         if (Allowed) {
-            ChangeActivity(GetCycleCountFast(), Index, NextIndex);
+            ui32 prevIndex = Index;
+            ChangeActivity(GetCycleCountFast(), prevIndex, NextIndex);
         }
     }
 

Original file line number	Diff line number	Diff line change
`@@ -45,7 +45,8 @@ class TInternalActorTypeGuard {`
`45`	`45`
`46`	`46`	`~TInternalActorTypeGuard() {`
`47`	`47`	`if (Allowed) {`
`48`		`- ChangeActivity(GetCycleCountFast(), Index, NextIndex);`
	`48`	`+ ui32 prevIndex = Index;`
	`49`	`+ ChangeActivity(GetCycleCountFast(), prevIndex, NextIndex);`
`49`	`50`	`}`
`50`	`51`	`}`
`51`	`52`