mimalloc: cherry-pick microsoft/mimalloc@7b398ad in Emscripten backend

kleisauke · kleisauke · commit b7e3831d951a · 2024-03-16T14:46:59.000+01:00
diff --git a/system/lib/mimalloc/src/prim/emscripten/prim.c b/system/lib/mimalloc/src/prim/emscripten/prim.c
@@ -209,7 +209,9 @@ void _mi_prim_thread_init_auto_done(void) {
 }
 
 void _mi_prim_thread_done_auto_done(void) {
-  // nothing to do
+  if (_mi_heap_default_key != (pthread_key_t)(-1)) {  // do not leak the key, see issue #809
+    pthread_key_delete(_mi_heap_default_key);
+  }
 }
 
 void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {

Original file line number	Diff line number	Diff line change
`@@ -209,7 +209,9 @@ void _mi_prim_thread_init_auto_done(void) {`
`209`	`209`	`}`
`210`	`210`
`211`	`211`	`void _mi_prim_thread_done_auto_done(void) {`
`212`		`- // nothing to do`
	`212`	`+ if (_mi_heap_default_key != (pthread_key_t)(-1)) { // do not leak the key, see issue #809`
	`213`	`+ pthread_key_delete(_mi_heap_default_key);`
	`214`	`+ }`
`213`	`215`	`}`
`214`	`216`
`215`	`217`	`void _mi_prim_thread_associate_default_heap(mi_heap_t* heap) {`