objimpl.h File Reference

#include "pymem.h"

Go to the source code of this file.

Classes
union	_gc_head

Macros
#define	PyObject_MALLOC   PyObject_Malloc
#define	PyObject_REALLOC   PyObject_Realloc
#define	PyObject_FREE   PyObject_Free
#define	PyObject_Del   PyObject_Free
#define	PyObject_DEL   PyObject_FREE
#define	_PyObject_Del   PyObject_Free
#define	PyObject_New(type, typeobj)   ( (type *) _PyObject_New(typeobj) )
#define	PyObject_NewVar(type, typeobj, n)   ( (type *) _PyObject_NewVar((typeobj), (n)) )
#define	PyObject_INIT(op, typeobj)   ( Py_TYPE(op) = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )
#define	PyObject_INIT_VAR(op, typeobj, size)   ( Py_SIZE(op) = (size), PyObject_INIT((op), (typeobj)) )
#define	_PyObject_SIZE(typeobj)   ( (typeobj)->tp_basicsize )
#define	_PyObject_VAR_SIZE(typeobj, nitems)
#define	PyObject_NEW(type, typeobj)
#define	PyObject_NEW_VAR(type, typeobj, n)
#define	PyType_IS_GC(t)   PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)
#define	PyObject_IS_GC(o)
#define	PyObject_GC_Resize(type, op, n)   ( (type *) _PyObject_GC_Resize((PyVarObject *)(op), (n)) )
#define	_PyObject_GC_Del   PyObject_GC_Del
#define	_Py_AS_GC(o)   ((PyGC_Head *)(o)-1)
#define	_PyGC_REFS_UNTRACKED   (-2)
#define	_PyGC_REFS_REACHABLE   (-3)
#define	_PyGC_REFS_TENTATIVELY_UNREACHABLE   (-4)
#define	_PyObject_GC_TRACK(o)
#define	_PyObject_GC_UNTRACK(o)
#define	_PyObject_GC_IS_TRACKED(o)   ((_Py_AS_GC(o))->gc.gc_refs != _PyGC_REFS_UNTRACKED)
#define	_PyObject_GC_MAY_BE_TRACKED(obj)
#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	Py_VISIT(op)
#define	PyGC_HEAD_SIZE   0
#define	PyObject_GC_Init(op)
#define	PyObject_GC_Fini(op)
#define	PyObject_AS_GC(op)   (op)
#define	PyObject_FROM_GC(op)   (op)
#define	PyType_SUPPORTS_WEAKREFS(t)
#define	PyObject_GET_WEAKREFS_LISTPTR(o)   ((PyObject **) (((char *) (o)) + Py_TYPE(o)->tp_weaklistoffset))

Typedefs
typedef union _gc_head	PyGC_Head

Functions
	PyAPI_FUNC (void *) PyObject_Malloc(size_t)
	PyAPI_FUNC (void) PyObject_Free(void *)
	PyAPI_FUNC (PyObject *) PyObject_Init(PyObject *
PyTypeObject *	PyAPI_FUNC (PyVarObject *) PyObject_InitVar(PyVarObject *
	PyAPI_FUNC (Py_ssize_t) PyGC_Collect(void)

Variables
	size_t
PyTypeObject PyTypeObject	Py_ssize_t
PyGC_Head *	_PyGC_generation0

Macro Definition Documentation

#define _Py_AS_GC

(

o

)

((PyGC_Head *)(o)-1)

#define _PyGC_REFS_REACHABLE   (-3)

#define _PyGC_REFS_TENTATIVELY_UNREACHABLE   (-4)

#define _PyGC_REFS_UNTRACKED   (-2)

#define _PyObject_Del   PyObject_Free

#define _PyObject_GC_Del   PyObject_GC_Del

#define _PyObject_GC_IS_TRACKED

(

o

)

((_Py_AS_GC(o))->gc.gc_refs != _PyGC_REFS_UNTRACKED)

#define _PyObject_GC_MAY_BE_TRACKED

(

obj

)

Value:

(PyObject_IS_GC(obj) && \
        (!PyTuple_CheckExact(obj) || _PyObject_GC_IS_TRACKED(obj)))

#define _PyObject_GC_TRACK

(

o

)

Value:

do { \
    PyGC_Head *g = _Py_AS_GC(o); \
    if (g->gc.gc_refs != _PyGC_REFS_UNTRACKED) \
        Py_FatalError("GC object already tracked"); \
    g->gc.gc_refs = _PyGC_REFS_REACHABLE; \
    g->gc.gc_next = _PyGC_generation0; \
    g->gc.gc_prev = _PyGC_generation0->gc.gc_prev; \
    g->gc.gc_prev->gc.gc_next = g; \
    _PyGC_generation0->gc.gc_prev = g; \
    } while (0);

#define _PyObject_GC_UNTRACK

(

o

)

Value:

do { \
    PyGC_Head *g = _Py_AS_GC(o); \
    assert(g->gc.gc_refs != _PyGC_REFS_UNTRACKED); \
    g->gc.gc_refs = _PyGC_REFS_UNTRACKED; \
    g->gc.gc_prev->gc.gc_next = g->gc.gc_next; \
    g->gc.gc_next->gc.gc_prev = g->gc.gc_prev; \
    g->gc.gc_next = NULL; \
    } while (0);

#define _PyObject_SIZE

(

typeobj

)

( (typeobj)->tp_basicsize )

#define _PyObject_VAR_SIZE	(		typeobj,
			nitems
	)

Value:

(size_t)                                    \
    ( ( (typeobj)->tp_basicsize +               \
        (nitems)*(typeobj)->tp_itemsize +       \
        (SIZEOF_VOID_P - 1)                     \
      ) & ~(SIZEOF_VOID_P - 1)                  \
    )

#define Py_VISIT

(

op

)

Value:

do {                                                                \
        if (op) {                                                       \
            int vret = visit((PyObject *)(op), arg);                    \
            if (vret)                                                   \
                return vret;                                            \
        }                                                               \
    } while (0)

#define PyGC_HEAD_SIZE   0

#define PyObject_AS_GC

(

op

)

(op)

#define PyObject_Del   PyObject_Free

#define PyObject_DEL   PyObject_FREE

#define PyObject_FREE   PyObject_Free

#define PyObject_FROM_GC

(

op

)

(op)

#define PyObject_GC_Fini

(

op

)

#define PyObject_GC_Init

(

op

)

#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_Resize	(		type,
			op,
			n
	)		( (type *) _PyObject_GC_Resize((PyVarObject *)(op), (n)) )

#define PyObject_GET_WEAKREFS_LISTPTR

(

o

)

((PyObject **) (((char *) (o)) + Py_TYPE(o)->tp_weaklistoffset))

#define PyObject_INIT	(		op,
			typeobj
	)		( Py_TYPE(op) = (typeobj), _Py_NewReference((PyObject *)(op)), (op) )

#define PyObject_INIT_VAR	(		op,
			typeobj,
			size
	)		( Py_SIZE(op) = (size), PyObject_INIT((op), (typeobj)) )

#define PyObject_IS_GC

(

o

)

Value:

(PyType_IS_GC(Py_TYPE(o)) && \
    (Py_TYPE(o)->tp_is_gc == NULL || Py_TYPE(o)->tp_is_gc(o)))

#define PyObject_MALLOC   PyObject_Malloc

#define PyObject_New	(		type,
			typeobj
	)		( (type *) _PyObject_New(typeobj) )

#define PyObject_NEW	(		type,
			typeobj
	)

Value:

( (type *) PyObject_Init( \
    (PyObject *) PyObject_MALLOC( _PyObject_SIZE(typeobj) ), (typeobj)) )

#define PyObject_NEW_VAR	(		type,
			typeobj,
			n
	)

Value:

( (type *) PyObject_InitVar( \
      (PyVarObject *) PyObject_MALLOC(_PyObject_VAR_SIZE((typeobj),(n)) ),\
      (typeobj), (n)) )

#define PyObject_NewVar	(		type,
			typeobj,
			n
	)		( (type *) _PyObject_NewVar((typeobj), (n)) )

#define PyObject_REALLOC   PyObject_Realloc

#define PyType_IS_GC

(

t

)

PyType_HasFeature((t), Py_TPFLAGS_HAVE_GC)

#define PyType_SUPPORTS_WEAKREFS

(

t

)

Value:

(PyType_HasFeature((t), Py_TPFLAGS_HAVE_WEAKREFS) \
     && ((t)->tp_weaklistoffset > 0))

Typedef Documentation

typedef union _gc_head PyGC_Head

Function Documentation

PyAPI_FUNC

(

void *

)

PyAPI_FUNC

(

void

)

PyAPI_FUNC ( PyObject *  )

read

PyAPI_FUNC

(

PyVarObject *

)

PyAPI_FUNC

(

Py_ssize_t

)

Variable Documentation

PyGC_Head* _PyGC_generation0

Py_ssize_t

size_t