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bpo-28254: Add a C-API for controlling the GC state (GH-25687)

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Add new C-API functions to control the state of the garbage collector:
PyGC_Enable(), PyGC_Disable(), PyGC_IsEnabled(),
corresponding to the functions in the gc module.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
Co-authored-by: Victor Stinner <vstinner@python.org>
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scoder 2021-04-28 18:12:16 +02:00 • committed by GitHub
parent baecfbd849
commit 3cc481b9de
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7 changed files with 152 additions and 7 deletions
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6
Include/objimpl.h
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@ -150,8 +150,12 @@ PyAPI_FUNC(PyVarObject *) _PyObject_NewVar(PyTypeObject *, Py_ssize_t);
* ==========================
*/
/* C equivalent of gc.collect() which ignores the state of gc.enabled. */
/* C equivalent of gc.collect(). */
PyAPI_FUNC(Py_ssize_t) PyGC_Collect(void);
/* C API for controlling the state of the garbage collector */
PyAPI_FUNC(int) PyGC_Enable(void);
PyAPI_FUNC(int) PyGC_Disable(void);
PyAPI_FUNC(int) PyGC_IsEnabled(void);
/* Test if a type has a GC head */
#define PyType_IS_GC(t) PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)