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authorSam Gross <colesbury@gmail.com>2021-11-17 20:51:03 (GMT)
committerGitHub <noreply@github.com>2021-11-17 20:51:03 (GMT)
commit736684b1bb67369a2e95a9f621752deead44e7ef (patch)
treee44ba8b1d9cc2fa9d4607896cf28096594a6e0d1 /Python/pystate.c
parentb919d8105c4d77f00509b6d3ab2073f09db640de (diff)
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bpo-42540: reallocation of id_mutex should not force default allocator (GH-29564)
Unlike the other locks reinitialized by _PyRuntimeState_ReInitThreads, the "interpreters.main->id_mutex" is not freed by _PyRuntimeState_Fini and should not force the default raw allocator.
Diffstat (limited to 'Python/pystate.c')
-rw-r--r--Python/pystate.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/Python/pystate.c b/Python/pystate.c
index 8df2807..273982b 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -148,12 +148,15 @@ _PyRuntimeState_ReInitThreads(_PyRuntimeState *runtime)
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
int reinit_interp = _PyThread_at_fork_reinit(&runtime->interpreters.mutex);
- int reinit_main_id = _PyThread_at_fork_reinit(&runtime->interpreters.main->id_mutex);
int reinit_xidregistry = _PyThread_at_fork_reinit(&runtime->xidregistry.mutex);
int reinit_unicode_ids = _PyThread_at_fork_reinit(&runtime->unicode_ids.lock);
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
+ /* bpo-42540: id_mutex is freed by _PyInterpreterState_Delete, which does
+ * not force the default allocator. */
+ int reinit_main_id = _PyThread_at_fork_reinit(&runtime->interpreters.main->id_mutex);
+
if (reinit_interp < 0
|| reinit_main_id < 0
|| reinit_xidregistry < 0