[Bf-blender-cvs] [fe958d7d993] master: Fix leak on exit when WITH_PYTHON_SAFETY is enabled

[Campbell Barton]

Commit: fe958d7d993e849527839486ef37c6239e3c5f5c
Author: Campbell Barton
Date:   Tue Oct 12 17:52:36 2021 +1100
Branches: master
https://developer.blender.org/rBfe958d7d993e849527839486ef37c6239e3c5f5c

Fix leak on exit when WITH_PYTHON_SAFETY is enabled

The lead only occurred when Python references were leaking as well.

===================================================================

M	source/blender/python/intern/bpy_rna.c

===================================================================

diff --git a/source/blender/python/intern/bpy_rna.c b/source/blender/python/intern/bpy_rna.c
index 92499d3c0ff..8c83f611b5c 100644
--- a/source/blender/python/intern/bpy_rna.c
+++ b/source/blender/python/intern/bpy_rna.c
@@ -180,6 +180,15 @@ static PyObject *id_free_weakref_cb(PyObject *weakinfo_pair, PyObject *weakref);
 static PyMethodDef id_free_weakref_cb_def = {
     "id_free_weakref_cb", (PyCFunction)id_free_weakref_cb, METH_O, NULL};
 
+/**
+ * Only used when there are values left on exit (causing memory leaks).
+ */
+static void id_weakref_pool_free_value_fn(void *p)
+{
+  GHash *weakinfo_hash = p;
+  BLI_ghash_free(weakinfo_hash, NULL, NULL);
+}
+
 /* Adds a reference to the list, remember to decref. */
 static GHash *id_weakref_pool_get(ID *id)
 {
@@ -7633,7 +7642,7 @@ void BPY_rna_exit(void)
       printf("ID: %s\n", id->name);
     }
   }
-  BLI_ghash_free(id_weakref_pool, NULL, NULL);
+  BLI_ghash_free(id_weakref_pool, NULL, id_weakref_pool_free_value_fn);
   id_weakref_pool = NULL;
 #endif
 }