mirror of https://github.com/python/cpython.git
Remove PyMalloc_* symbols. PyObject_Malloc now uses pymalloc if
it's enabled. Allow PyObject_Del, PyObject_Free, and PyObject_GC_Del to be used as function designators. Provide source compatibility macros. Make PyObject_GC_Track and PyObject_GC_UnTrack functions instead of trivial macros wrapping functions.
This commit is contained in:
Neil Schemenauer
parent
f6d1ea1749
commit
3e7b893899
|
|
@ -34,10 +34,7 @@ You must first include "object.h".
|
|||
allocator) and initialize its object header fields.
|
||||
|
||||
Note that objects created with PyObject_{New, NewVar} are allocated
|
||||
within the Python heap by the raw memory allocator (usually the system
|
||||
malloc). If you want to use the specialized Python allocator use
|
||||
PyMalloc_New and PyMalloc_NewVar to allocate the objects and
|
||||
PyMalloc_Del to free them.
|
||||
using the specialized Python allocator (implemented in obmalloc.c).
|
||||
|
||||
In case a specific form of memory management is needed, implying that
|
||||
the objects would not reside in the Python heap (for example standard
|
||||
|
|
@ -82,10 +79,40 @@ extern DL_IMPORT(void *) PyObject_Malloc(size_t);
|
|||
extern DL_IMPORT(void *) PyObject_Realloc(void *, size_t);
|
||||
extern DL_IMPORT(void) PyObject_Free(void *);
|
||||
|
||||
|
||||
/* Macros */
|
||||
#define PyObject_MALLOC(n) PyMem_MALLOC(n)
|
||||
#define PyObject_REALLOC(op, n) PyMem_REALLOC((void *)(op), (n))
|
||||
#define PyObject_FREE(op) PyMem_FREE((void *)(op))
|
||||
#ifdef WITH_PYMALLOC
|
||||
#ifdef PYMALLOC_DEBUG
|
||||
DL_IMPORT(void *) _PyObject_DebugMalloc(size_t nbytes);
|
||||
DL_IMPORT(void *) _PyObject_DebugRealloc(void *p, size_t nbytes);
|
||||
DL_IMPORT(void) _PyObject_DebugFree(void *p);
|
||||
DL_IMPORT(void) _PyObject_DebugDumpAddress(const void *p);
|
||||
DL_IMPORT(void) _PyObject_DebugCheckAddress(const void *p);
|
||||
DL_IMPORT(void) _PyObject_DebugDumpStats(void);
|
||||
#define PyObject_MALLOC _PyObject_DebugMalloc
|
||||
#define PyObject_Malloc _PyObject_DebugMalloc
|
||||
#define PyObject_REALLOC _PyObject_DebugRealloc
|
||||
#define PyObject_Realloc _PyObject_DebugRealloc
|
||||
#define PyObject_FREE _PyObject_DebugFree
|
||||
#define PyObject_Free _PyObject_DebugFree
|
||||
|
||||
#else /* WITH_PYMALLOC && ! PYMALLOC_DEBUG */
|
||||
#define PyObject_MALLOC PyObject_Malloc
|
||||
#define PyObject_REALLOC PyObject_Realloc
|
||||
#define PyObject_FREE PyObject_Free
|
||||
#endif
|
||||
|
||||
#else /* ! WITH_PYMALLOC */
|
||||
#define PyObject_MALLOC PyMem_MALLOC
|
||||
#define PyObject_REALLOC PyMem_REALLOC
|
||||
#define PyObject_FREE PyMem_FREE
|
||||
#endif /* WITH_PYMALLOC */
|
||||
|
||||
#define PyObject_Del PyObject_Free
|
||||
#define PyObject_DEL PyObject_FREE
|
||||
|
||||
/* for source compatibility with 2.2 */
|
||||
#define _PyObject_Del PyObject_Free
|
||||
|
||||
/*
|
||||
* Generic object allocator interface
|
||||
|
|
@ -98,13 +125,11 @@ extern DL_IMPORT(PyVarObject *) PyObject_InitVar(PyVarObject *,
|
|||
PyTypeObject *, int);
|
||||
extern DL_IMPORT(PyObject *) _PyObject_New(PyTypeObject *);
|
||||
extern DL_IMPORT(PyVarObject *) _PyObject_NewVar(PyTypeObject *, int);
|
||||
extern DL_IMPORT(void) _PyObject_Del(PyObject *);
|
||||
|
||||
#define PyObject_New(type, typeobj) \
|
||||
( (type *) _PyObject_New(typeobj) )
|
||||
#define PyObject_NewVar(type, typeobj, n) \
|
||||
( (type *) _PyObject_NewVar((typeobj), (n)) )
|
||||
#define PyObject_Del(op) _PyObject_Del((PyObject *)(op))
|
||||
|
||||
/* Macros trading binary compatibility for speed. See also pymem.h.
|
||||
Note that these macros expect non-NULL object pointers.*/
|
||||
|
|
@ -146,8 +171,6 @@ extern DL_IMPORT(void) _PyObject_Del(PyObject *);
|
|||
(PyVarObject *) PyObject_MALLOC(_PyObject_VAR_SIZE((typeobj),(n)) ),\
|
||||
(typeobj), (n)) )
|
||||
|
||||
#define PyObject_DEL(op) PyObject_FREE(op)
|
||||
|
||||
/* This example code implements an object constructor with a custom
|
||||
allocator, where PyObject_New is inlined, and shows the important
|
||||
distinction between two steps (at least):
|
||||
|
|
@ -177,22 +200,6 @@ extern DL_IMPORT(void) _PyObject_Del(PyObject *);
|
|||
the 1st step is performed automatically for you, so in a C++ class
|
||||
constructor you would start directly with PyObject_Init/InitVar. */
|
||||
|
||||
/*
|
||||
* The PyMalloc Object Allocator
|
||||
* =============================
|
||||
*/
|
||||
|
||||
extern DL_IMPORT(PyObject *) _PyMalloc_New(PyTypeObject *);
|
||||
extern DL_IMPORT(PyVarObject *) _PyMalloc_NewVar(PyTypeObject *, int);
|
||||
extern DL_IMPORT(void) _PyMalloc_Del(PyObject *);
|
||||
|
||||
#define PyMalloc_New(type, typeobj) \
|
||||
( (type *) _PyMalloc_New(typeobj) )
|
||||
#define PyMalloc_NewVar(type, typeobj, n) \
|
||||
( (type *) _PyMalloc_NewVar((typeobj), (n)) )
|
||||
#define PyMalloc_Del(op) _PyMalloc_Del((PyObject *)(op))
|
||||
|
||||
|
||||
/*
|
||||
* Garbage Collection Support
|
||||
* ==========================
|
||||
|
|
@ -209,17 +216,12 @@ extern DL_IMPORT(void) _PyMalloc_Del(PyObject *);
|
|||
#define PyObject_IS_GC(o) (PyType_IS_GC((o)->ob_type) && \
|
||||
((o)->ob_type->tp_is_gc == NULL || (o)->ob_type->tp_is_gc(o)))
|
||||
|
||||
extern DL_IMPORT(PyObject *) _PyObject_GC_Malloc(PyTypeObject *, int);
|
||||
extern DL_IMPORT(PyVarObject *) _PyObject_GC_Resize(PyVarObject *, int);
|
||||
|
||||
#define PyObject_GC_Resize(type, op, n) \
|
||||
( (type *) _PyObject_GC_Resize((PyVarObject *)(op), (n)) )
|
||||
|
||||
extern DL_IMPORT(PyObject *) _PyObject_GC_New(PyTypeObject *);
|
||||
extern DL_IMPORT(PyVarObject *) _PyObject_GC_NewVar(PyTypeObject *, int);
|
||||
extern DL_IMPORT(void) _PyObject_GC_Del(PyObject *);
|
||||
extern DL_IMPORT(void) _PyObject_GC_Track(PyObject *);
|
||||
extern DL_IMPORT(void) _PyObject_GC_UnTrack(PyObject *);
|
||||
/* for source compatibility with 2.2 */
|
||||
#define _PyObject_GC_Del PyObject_GC_Del
|
||||
|
||||
#ifdef WITH_CYCLE_GC
|
||||
|
||||
|
|
@ -257,18 +259,22 @@ extern PyGC_Head _PyGC_generation0;
|
|||
g->gc.gc_next = NULL; \
|
||||
} while (0);
|
||||
|
||||
#define PyObject_GC_Track(op) _PyObject_GC_Track((PyObject *)op)
|
||||
#define PyObject_GC_UnTrack(op) _PyObject_GC_UnTrack((PyObject *)op)
|
||||
|
||||
extern DL_IMPORT(PyObject *) _PyObject_GC_Malloc(size_t);
|
||||
extern DL_IMPORT(PyObject *) _PyObject_GC_New(PyTypeObject *);
|
||||
extern DL_IMPORT(PyVarObject *) _PyObject_GC_NewVar(PyTypeObject *, int);
|
||||
extern DL_IMPORT(void) PyObject_GC_Track(void *);
|
||||
extern DL_IMPORT(void) PyObject_GC_UnTrack(void *);
|
||||
extern DL_IMPORT(void) PyObject_GC_Del(void *);
|
||||
|
||||
#define PyObject_GC_New(type, typeobj) \
|
||||
( (type *) _PyObject_GC_New(typeobj) )
|
||||
#define PyObject_GC_NewVar(type, typeobj, n) \
|
||||
( (type *) _PyObject_GC_NewVar((typeobj), (n)) )
|
||||
#define PyObject_GC_Del(op) _PyObject_GC_Del((PyObject *)(op))
|
||||
|
||||
|
||||
#else /* !WITH_CYCLE_GC */
|
||||
|
||||
#define _PyObject_GC_Malloc PyObject_Malloc
|
||||
#define PyObject_GC_New PyObject_New
|
||||
#define PyObject_GC_NewVar PyObject_NewVar
|
||||
#define PyObject_GC_Del PyObject_Del
|
||||
|
|
|
|||
Loading…
Reference in New Issue