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Don't run garbage collection on interpreter exit if it was explicitly disabled

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Łukasz Langa 2016-09-09 21:47:46 -07:00
parent 9e3ef52a35
commit fef7e94fa1
3 changed files with 14 additions and 4 deletions
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3
Include/objimpl.h
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@ -224,11 +224,12 @@ PyAPI_FUNC(void) PyObject_SetArenaAllocator(PyObjectArenaAllocator *allocator);
* ==========================
*/
/* C equivalent of gc.collect(). */
/* C equivalent of gc.collect() which ignores the state of gc.enabled. */
PyAPI_FUNC(Py_ssize_t) PyGC_Collect(void);
#ifndef Py_LIMITED_API
PyAPI_FUNC(Py_ssize_t) _PyGC_CollectNoFail(void);
PyAPI_FUNC(Py_ssize_t) _PyGC_CollectIfEnabled(void);
#endif
/* Test if a type has a GC head */

9
Modules/gcmodule.c
View file

@ -1596,6 +1596,15 @@ PyGC_Collect(void)
return n;
}
Py_ssize_t
_PyGC_CollectIfEnabled(void)
{
if (!enabled)
return 0;
return PyGC_Collect();
}
Py_ssize_t
_PyGC_CollectNoFail(void)
{

6
Python/pylifecycle.c
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@ -600,12 +600,12 @@ Py_FinalizeEx(void)
* XXX but I'm unclear on exactly how that one happens. In any case,
* XXX I haven't seen a real-life report of either of these.
*/
PyGC_Collect();
_PyGC_CollectIfEnabled();
#ifdef COUNT_ALLOCS
/* With COUNT_ALLOCS, it helps to run GC multiple times:
each collection might release some types from the type
list, so they become garbage. */
while (PyGC_Collect() > 0)
while (_PyGC_CollectIfEnabled() > 0)
/* nothing */;
#endif
/* Destroy all modules */
@ -632,7 +632,7 @@ Py_FinalizeEx(void)
* XXX Python code getting called.
*/
#if 0
PyGC_Collect();
_PyGC_CollectIfEnabled();
#endif
/* Disable tracemalloc after all Python objects have been destroyed,