[GTK][WPE] Fix crash at exit when monitor is disabled with MALLOC_HEAP_BREAKDOWN

blino · Scony · commit 7e412e01fc13 · 2025-10-17T00:28:59.000-07:00
https://bugs.webkit.org/show_bug.cgi?id=300885 Reviewed by Michael Catanzaro. If the monitor thread has not been started, do not try to join it. * Source/WTF/wtf/malloc_heap_breakdown/main.cpp: (MallocZoneHeapManager::~MallocZoneHeapManager): Canonical link: https://commits.webkit.org/301695@main
diff --git a/Source/WTF/wtf/malloc_heap_breakdown/main.cpp b/Source/WTF/wtf/malloc_heap_breakdown/main.cpp
@@ -130,7 +130,8 @@ class MallocZoneHeapManager {
     ~MallocZoneHeapManager()
     {
         m_forceThreadExit = true;
-        m_monitorThread->join();
+        if (m_monitorThread)
+            m_monitorThread->join();
     }
 
     void monitoringThreadMain()

Original file line number	Diff line number	Diff line change
`@@ -130,7 +130,8 @@ class MallocZoneHeapManager {`
`130`	`130`	`~MallocZoneHeapManager()`
`131`	`131`	`{`
`132`	`132`	`m_forceThreadExit = true;`
`133`		`- m_monitorThread->join();`
	`133`	`+ if (m_monitorThread)`
	`134`	`+ m_monitorThread->join();`
`134`	`135`	`}`
`135`	`136`
`136`	`137`	`void monitoringThreadMain()`