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* gh-102013: Add PyUnstable_GC_VisitObjects (#102014)Jacob Bower2023-03-141-0/+19
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* gh-87347: Fix PyObject_NEW() regression (#94234)Victor Stinner2022-06-261-2/+2
| | | | | Don't add parenthesis around the type parameter. Add unit tests on PyObject_NEW() and similar functions.
* gh-87347: Add parenthesis around macro arguments (#93915)Victor Stinner2022-06-201-2/+2
| | | Add unit test on Py_MEMBER_SIZE() and some other macros.
* gh-92135: Rename _Py_reinterpret_cast() to _Py_CAST() (#92230)Victor Stinner2022-05-031-2/+2
| | | Rename also _Py_static_cast() to _Py_STATIC_CAST().
* gh-92135: Fix _Py_reinterpret_cast() for const (#92138)Victor Stinner2022-05-021-2/+2
| | | | | | | | | | Fix C++ compiler warnings on cast macros, like _PyObject_CAST(), when casting a constant expression to a non constant type: use const_cast<> in C++. * In C++, Py_SAFE_DOWNCAST() now uses static_cast<> rather than reinterpret_cast<>. * Add tests to the _testcppext C++ extension. * test_cppext no longer captures stdout in verbose mode.
* gh-91320: Add _Py_reinterpret_cast() macro (#91959)Victor Stinner2022-04-271-2/+2
| | | | | | | | | | | | | | Fix C++ compiler warnings about "old-style cast" (g++ -Wold-style-cast) in the Python C API. Use C++ reinterpret_cast<> and static_cast<> casts when the Python C API is used in C++. Example of fixed warning: Include/object.h:107:43: error: use of old-style cast to ‘PyObject*’ {aka ‘struct _object*’} [-Werror=old-style-cast] #define _PyObject_CAST(op) ((PyObject*)(op)) Add _Py_reinterpret_cast() and _Py_static_cast() macros.
* bpo-45434: Remove useless space in includes (GH-28963)Victor Stinner2021-10-141-1/+1
| | | Micro-optimize spaces!
* bpo-43774: Remove unused PYMALLOC_DEBUG macro (GH-25711)Victor Stinner2021-04-291-2/+2
| | | Enhance also the documentation of debug hooks on memory allocators.
* bpo-28254: Add a C-API for controlling the GC state (GH-25687)scoder2021-04-281-1/+5
| | | | | | | | 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>
* bpo-42519: Replace PyObject_MALLOC() with PyObject_Malloc() (GH-23587)Victor Stinner2020-12-011-1/+3
| | | | | | | | | No longer use deprecated aliases to functions: * Replace PyObject_MALLOC() with PyObject_Malloc() * Replace PyObject_REALLOC() with PyObject_Realloc() * Replace PyObject_FREE() with PyObject_Free() * Replace PyObject_Del() with PyObject_Free() * Replace PyObject_DEL() with PyObject_Free()
* bpo-42519: Replace PyMem_MALLOC() with PyMem_Malloc() (GH-23586)Victor Stinner2020-12-011-3/+3
| | | | | | | | | | | No longer use deprecated aliases to functions: * Replace PyMem_MALLOC() with PyMem_Malloc() * Replace PyMem_REALLOC() with PyMem_Realloc() * Replace PyMem_FREE() with PyMem_Free() * Replace PyMem_Del() with PyMem_Free() * Replace PyMem_DEL() with PyMem_Free() Modify also the PyMem_DEL() macro to use directly PyMem_Free().
* bpo-40989: PyObject_INIT() becomes an alias to PyObject_Init() (GH-20901)Victor Stinner2020-06-151-14/+8
| | | | | | | | | | | | | | The PyObject_INIT() and PyObject_INIT_VAR() macros become aliases to, respectively, PyObject_Init() and PyObject_InitVar() functions. Rename _PyObject_INIT() and _PyObject_INIT_VAR() static inline functions to, respectively, _PyObject_Init() and _PyObject_InitVar(), and move them to pycore_object.h. Remove their return value: their return type becomes void. The _datetime module is now built with the Py_BUILD_CORE_MODULE macro defined. Remove an outdated comment on _Py_tracemalloc_config.
* bpo-40241: Add PyObject_GC_IsTracked and PyObject_GC_IsFinalized to the ↵Pablo Galindo2020-04-111-0/+2
| | | | | public C-API (GH-19461) Add the functions PyObject_GC_IsTracked and PyObject_GC_IsFinalized to the public API to allow to query if Python objects are being currently tracked or have been already finalized by the garbage collector respectively.
* bpo-40170: PyObject_NEW() becomes an alias to PyObject_New() (GH-19379)Victor Stinner2020-04-071-61/+9
| | | | | | | | | | | | The PyObject_NEW() macro becomes an alias to the PyObject_New() macro, and the PyObject_NEW_VAR() macro becomes an alias to the PyObject_NewVar() macro, to hide implementation details. They no longer access directly the PyTypeObject.tp_basicsize member. Exclude _PyObject_SIZE() and _PyObject_VAR_SIZE() macros from the limited C API. Replace PyObject_NEW() with PyObject_New() and replace PyObject_NEW_VAR() with PyObject_NewVar().
* bpo-39542: Make PyObject_INIT() opaque in limited C API (GH-18363)Victor Stinner2020-02-051-31/+12
| | | | | | | | | | | | | | In the limited C API, PyObject_INIT() and PyObject_INIT_VAR() are now defined as aliases to PyObject_Init() and PyObject_InitVar() to make their implementation opaque. It avoids to leak implementation details in the limited C API. Exclude the following functions from the limited C API, move them from object.h to cpython/object.h: * _Py_NewReference() * _Py_ForgetReference() * _PyTraceMalloc_NewReference() * _Py_GetRefTotal()
* bpo-35810: Incref heap-allocated types in PyObject_Init (GH-11661)Eddie Elizondo2019-03-271-0/+3
| | | | | * Incref heap-allocated types in PyObject_Init * Add documentation and porting notes to What's New
* bpo-35134: Create Include/cpython/ subdirectory (GH-10624)Victor Stinner2018-11-231-105/+3
| | | | | | | | | | | | | | | | Include/*.h should be the "portable Python API", whereas Include/cpython/*.h should be the "CPython API": CPython implementation details. Changes: * Create Include/cpython/ subdirectory * "make install" now creates $prefix/include/cpython and copy Include/cpython/* to $prefix/include/cpython * Create Include/cpython/objimpl.h: move objimpl.h code surrounded by "#ifndef Py_LIMITED_API" to cpython/objimpl.h. * objimpl.h now includes cpython/objimpl.h * Windows installer (MSI) now also install Include/ subdirectories: Include/cpython/ and Include/internal/.
* bpo-35059: PyObject_INIT() casts to PyObject* (GH-10674)Victor Stinner2018-11-231-2/+8
| | | | | | PyObject_INIT() and PyObject_INIT_VAR() now cast their first argument to PyObject*, as done in Python 3.7. Revert partially commit b4435e20a92af474f117b78b98ddc6f515363af5.
* bpo-35059: Add _PyObject_CAST() macro (GH-10645)Victor Stinner2018-11-221-2/+2
| | | | Add _PyObject_CAST() and _PyVarObject_CAST() macros to cast argument to PyObject* and PyVarObject* properly.
* bpo-35081: Add Include/internal/pycore_object.h (GH-10640)Victor Stinner2018-11-211-45/+0
| | | | Move _PyObject_GC_TRACK() and _PyObject_GC_UNTRACK() from Include/objimpl.h to Include/internal/pycore_object.h.
* bpo-35081: Move _PyGC_FINALIZED() back to C API (GH-10626)Victor Stinner2018-11-201-3/+3
| | | | | | | | | | | | | | | | Partially revert commit 1a6be91e6fd65ce9cb88cbbbb193db7e92ec6076, move back PyGC API from the internal API to the C API: * _PyGCHead_NEXT(g), _PyGCHead_SET_NEXT(g, p) * _PyGCHead_PREV(g), _PyGCHead_SET_PREV(g, p) * _PyGCHead_FINALIZED(g), _PyGCHead_SET_FINALIZED(g) * _PyGC_FINALIZED(o), _PyGC_SET_FINALIZED(o) * _PyGC_PREV_MASK_FINALIZED * _PyGC_PREV_MASK_COLLECTING * _PyGC_PREV_SHIFT * _PyGC_PREV_MASK _PyObject_GC_TRACK(o) and _PyObject_GC_UNTRACK(o) remain in the internal API.
* bpo-35081: Make some _PyGC macros internal (GH-10507)Victor Stinner2018-11-131-27/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | * Move "GC" macros together: * PyObject_IS_GC() * _Py_AS_GC() * _PyObject_GC_IS_TRACKED() * _PyObject_GC_MAY_BE_TRACKED() * Mark other GC macros as internal (#ifdef Py_BUILD_CORE): * _PyGCHead_NEXT(g), _PyGCHead_SET_NEXT(g, p) * _PyGCHead_PREV(g), _PyGCHead_SET_PREV(g, p) * _PyGCHead_FINALIZED(g), _PyGCHead_SET_FINALIZED(g) * _PyGC_FINALIZED(o), _PyGC_SET_FINALIZED(o) * _PyObject_GC_TRACK(o), _PyObject_GC_UNTRACK(o) * _PyGC_PREV_MASK_FINALIZED * _PyGC_PREV_MASK_COLLECTING * _PyGC_PREV_SHIFT * _PyGC_PREV_MASK * Replace _PyGC_generation0 with _PyRuntime.gc.generation0 * _queuemodule.c: replace _PyObject_GC_UNTRACK() with with PyObject_GC_UnTrack() * Document that _PyObject_GC_TRACK() _PyObject_GC_UNTRACK() macros have been removed from the public C API.
* bpo-35059: Remove Py_STATIC_INLINE() macro (GH-10216)Victor Stinner2018-10-291-2/+2
| | | | "static inline" should be used directly. Forcing the compiler to inline is not recommended.
* bpo-35059: Convert PyObject_INIT() to function (GH-10077)Victor Stinner2018-10-261-6/+23
| | | | | * Convert PyObject_INIT() and PyObject_INIT_VAR() macros to static inline functions. * Fix usage of these functions: cast to PyObject* or PyVarObject*.
* bpo-33597: Reduce PyGC_Head size (GH-7043)INADA Naoki2018-07-101-47/+59
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* bpo-33738: Fix macros which contradict PEP 384 (GH-7477)Christian Tismer2018-06-091-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During development of the limited API support for PySide, we saw an error in a macro that accessed a type field. This patch fixes the 7 errors in the Python headers. Macros which were not written as capitals were implemented as function. To do the necessary analysis again, a script was included that parses all headers and looks for "->tp_" in serctions which can be reached with active limited API. It is easily possible to call this script as a test. Error listing: ../../Include/objimpl.h:243 #define PyObject_IS_GC(o) (PyType_IS_GC(Py_TYPE(o)) && \ (Py_TYPE(o)->tp_is_gc == NULL || Py_TYPE(o)->tp_is_gc(o))) Action: commented only ../../Include/objimpl.h:362 #define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0) Action: commented only ../../Include/objimpl.h:364 #define PyObject_GET_WEAKREFS_LISTPTR(o) \ ((PyObject **) (((char *) (o)) + Py_TYPE(o)->tp_weaklistoffset)) Action: commented only ../../Include/pyerrors.h:143 #define PyExceptionClass_Name(x) \ ((char *)(((PyTypeObject*)(x))->tp_name)) Action: implemented function ../../Include/abstract.h:593 #define PyIter_Check(obj) \ ((obj)->ob_type->tp_iternext != NULL && \ (obj)->ob_type->tp_iternext != &_PyObject_NextNotImplemented) Action: implemented function ../../Include/abstract.h:713 #define PyIndex_Check(obj) \ ((obj)->ob_type->tp_as_number != NULL && \ (obj)->ob_type->tp_as_number->nb_index != NULL) Action: implemented function ../../Include/abstract.h:924 #define PySequence_ITEM(o, i)\ ( Py_TYPE(o)->tp_as_sequence->sq_item(o, i) ) Action: commented only
* Fix typo in Include/objimpl.h, the word "has" was missing (GH-5568)Alexey2018-02-061-1/+1
| | | It now reads: ...be aware that Python has no control over...
* bpo-32030: Add pymain_get_global_config() (#4735)Victor Stinner2017-12-061-1/+1
| | | | | | | | | | | | | * Py_Main() now starts by reading Py_xxx configuration variables to only work on its own private structure, and then later writes back the configuration into these variables. * Replace Py_GETENV() with pymain_get_env_var() which ignores empty variables. * Add _PyCoreConfig.dump_refs * Add _PyCoreConfig.malloc_stats * _PyObject_DebugMallocStats() is now responsible to check if debug hooks are installed. The function returns 1 if stats were written, or 0 if the hooks are disabled. Mark _PyMem_PymallocEnabled() as static.
* Issue #29058: All stable API extensions added after Python 3.2 are nowSerhiy Storchaka2016-12-271-0/+2
| | | | | available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of the minimum Python version supporting this API.
* Issue #26900: Excluded underscored names and other private API from limited API.Serhiy Storchaka2016-09-111-0/+4
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* Don't run garbage collection on interpreter exit if it was explicitly disabledŁukasz Langa2016-09-101-1/+2
| | | | by the user.
* Issue #21233: Add new C functions: PyMem_RawCalloc(), PyMem_Calloc(),Victor Stinner2014-05-021-1/+3
| | | | | | PyObject_Calloc(), _PyObject_GC_Calloc(). bytes(int) and bytearray(int) are now using ``calloc()`` instead of ``malloc()`` for large objects which is faster and use less memory (until the bytearray buffer is filled with data).
* cast negative numbers to size_t before shifting them (#20929)Benjamin Peterson2014-03-151-1/+1
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* Issue #18783: Removed existing mentions of Python long type in docstrings,Serhiy Storchaka2013-08-271-1/+1
|\ | | | | | | error messages and comments.
| * Issue #18783: Removed existing mentions of Python long type in docstrings,Serhiy Storchaka2013-08-271-1/+1
| | | | | | | | error messages and comments.
* | Issue #18112: PEP 442 implementation (safe object finalization).Antoine Pitrou2013-07-301-5/+29
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* | Issue #3329: Implement the PEP 445Victor Stinner2013-07-071-34/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add new enum: * PyMemAllocatorDomain Add new structures: * PyMemAllocator * PyObjectArenaAllocator Add new functions: * PyMem_RawMalloc(), PyMem_RawRealloc(), PyMem_RawFree() * PyMem_GetAllocator(), PyMem_SetAllocator() * PyObject_GetArenaAllocator(), PyObject_SetArenaAllocator() * PyMem_SetupDebugHooks() Changes: * PyMem_Malloc()/PyObject_Realloc() now always call malloc()/realloc(), instead of calling PyObject_Malloc()/PyObject_Realloc() in debug mode. * PyObject_Malloc()/PyObject_Realloc() now falls back to PyMem_Malloc()/PyMem_Realloc() for allocations larger than 512 bytes. * Redesign debug checks on memory block allocators as hooks, instead of using C macros
* | Revert changeset 6661a8154eb3: Issue #3329: Add new APIs to customize memory ↵Victor Stinner2013-06-151-39/+34
| | | | | | | | | | | | allocators The new API require more discussion.
* | Issue #3329: Add new APIs to customize memory allocatorsVictor Stinner2013-06-141-34/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add a new PyMemAllocators structure * New functions: - PyMem_RawMalloc(), PyMem_RawRealloc(), PyMem_RawFree(): GIL-free memory allocator functions - PyMem_GetRawAllocators(), PyMem_SetRawAllocators() - PyMem_GetAllocators(), PyMem_SetAllocators() - PyMem_SetupDebugHooks() - _PyObject_GetArenaAllocators(), _PyObject_SetArenaAllocators() * Add unit test for PyMem_Malloc(0) and PyObject_Malloc(0) * Add unit test for new get/set allocators functions * PyObject_Malloc() now falls back on PyMem_Malloc() instead of malloc() if size is bigger than SMALL_REQUEST_THRESHOLD, and PyObject_Realloc() falls back on PyMem_Realloc() instead of realloc() * PyMem_Malloc() and PyMem_Realloc() now always call malloc() and realloc(), instead of calling PyObject_Malloc() and PyObject_Realloc() in debug mode
* | Issue #17937: Try harder to collect cyclic garbage at shutdown.Antoine Pitrou2013-05-181-0/+4
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* | Using 'long double' to force this structure to be worst case aligned is noGregory P. Smith2012-12-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | longer required as of Python 2.5+ when the gc_refs changed from an int (4 bytes) to a Py_ssize_t (8 bytes) as the minimum size is 16 bytes. The use of a 'long double' triggered a warning by Clang trunk's Undefined-Behavior Sanitizer as on many platforms a long double requires 16-byte alignment but the Python memory allocator only guarantees 8 byte alignment. So our code would allocate and use these structures with technically improper alignment. Though it didn't matter since the 'dummy' field is never used. This silences that warning. Spelunking into code history, the double was added in 2001 to force better alignment on some platforms and changed to a long double in 2002 to appease Tru64. That issue should no loner be present since the upgrade from int to Py_ssize_t where the minimum structure size increased to 16 (unless anyone knows of a platform where ssize_t is 4 bytes?) or 24 bytes depending on if the build uses 4 or 8 byte pointers. We can probably get rid of the double and this union hack all together today. That is a slightly more invasive change that can be left for later. A more correct non-hacky alternative if any alignment issues are still found would be to use a compiler specific alignment declaration on the structure and determine which value to use at configure time.
* | Issue #13390: New function :func:`sys.getallocatedblocks()` returns the ↵Antoine Pitrou2012-12-091-0/+2
|/ | | | | | number of memory blocks currently allocated. Also, the ``-R`` option to regrtest uses this function to guard against memory allocation leaks.
* Issue #15144: Fix possible integer overflow when handling pointers as ↵Antoine Pitrou2012-09-201-6/+3
| | | | | | integer values, by using Py_uintptr_t instead of size_t. Patch by Serhiy Storchaka.
* Issue #14785: Add sys._debugmallocstats() to help debug low-level memory ↵David Malcolm2012-06-221-1/+3
| | | | allocation issues
* Issue #10333: Remove ancient GC API, which has been deprecated sinceAntoine Pitrou2011-01-041-12/+0
| | | | Python 2.2.
* Merge branches/pep-0384.Martin v. Löwis2010-12-031-1/+2
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* Recorded merge of revisions 81029 via svnmerge fromAntoine Pitrou2010-05-091-73/+73
| | | | | | | | | | svn+ssh://pythondev@svn.python.org/python/trunk ........ r81029 | antoine.pitrou | 2010-05-09 16:46:46 +0200 (dim., 09 mai 2010) | 3 lines Untabify C files. Will watch buildbots. ........
* http://bugs.python.org/issue6836Kristján Valur Jónsson2009-09-281-0/+7
| | | | Merging revisions 75103,75104 from trunk to py3k
* Merged revisions 70546 via svnmerge fromAntoine Pitrou2009-03-231-0/+11
| | | | | | | | | | | | | | | | svn+ssh://pythondev@svn.python.org/python/trunk ........ r70546 | antoine.pitrou | 2009-03-23 19:41:45 +0100 (lun., 23 mars 2009) | 9 lines Issue #4688: Add a heuristic so that tuples and dicts containing only untrackable objects are not tracked by the garbage collector. This can reduce the size of collections and therefore the garbage collection overhead on long-running programs, depending on their particular use of datatypes. (trivia: this makes the "binary_trees" benchmark from the Computer Language Shootout 40% faster) ........
* #1629: Renamed Py_Size, Py_Type and Py_Refcnt to Py_SIZE, Py_TYPE and Py_REFCNT.Christian Heimes2007-12-191-5/+5
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