#$@%#$%!

Ngiler SH3LL 360
: / opt / alt / python39 / include / python3.9 / cpython /

Information Server
MySQL : OFF Perl : OFF CURL : ON WGET : OFF PKEXEC : OFF

Directive	Local Value
IP Address	162.0.209.101
System	Linux premium169.web-hosting.com 4.18.0-553.50.1.lve.el8.x86_64 #1 SMP Thu Apr 17 19:10:24 UTC 2025 x86_64
User	luxeelil
PHP Version	8.0.30
Software	LiteSpeed
Doc root	Writable

Edit File : objimpl.h \| Size : 4.35 KB
#ifndef Py_CPYTHON_OBJIMPL_H # error "this header file must not be included directly" #endif #ifdef __cplusplus extern "C" { #endif #define _PyObject_SIZE(typeobj) ( (typeobj)->tp_basicsize ) /* _PyObject_VAR_SIZE returns the number of bytes (as size_t) allocated for a vrbl-size object with nitems items, exclusive of gc overhead (if any). The value is rounded up to the closest multiple of sizeof(void ), in order to ensure that pointer fields at the end of the object are correctly aligned for the platform (this is of special importance for subclasses of, e.g., str or int, so that pointers can be stored after the embedded data). Note that there's no memory wastage in doing this, as malloc has to return (at worst) pointer-aligned memory anyway. / #if ((SIZEOF_VOID_P - 1) & SIZEOF_VOID_P) != 0 # error "_PyObject_VAR_SIZE requires SIZEOF_VOID_P be a power of 2" #endif #define _PyObject_VAR_SIZE(typeobj, nitems) \ _Py_SIZE_ROUND_UP((typeobj)->tp_basicsize + \ (nitems)(typeobj)->tp_itemsize, \ SIZEOF_VOID_P) / 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): 1) the actual allocation of the object storage; 2) the initialization of the Python specific fields in this storage with PyObject_{Init, InitVar}. PyObject * YourObject_New(...) { PyObject op; op = (PyObject ) Your_Allocator(_PyObject_SIZE(YourTypeStruct)); if (op == NULL) return PyErr_NoMemory(); PyObject_Init(op, &YourTypeStruct); op->ob_field = value; ... return op; } Note that in C++, the use of the new operator usually implies that the 1st step is performed automatically for you, so in a C++ class constructor you would start directly with PyObject_Init/InitVar. / / Inline functions trading binary compatibility for speed: PyObject_INIT() is the fast version of PyObject_Init(), and PyObject_INIT_VAR() is the fast version of PyObject_InitVar(). These inline functions must not be called with op=NULL. / static inline PyObject _PyObject_INIT(PyObject op, PyTypeObject typeobj) { assert(op != NULL); Py_SET_TYPE(op, typeobj); if (PyType_GetFlags(typeobj) & Py_TPFLAGS_HEAPTYPE) { Py_INCREF(typeobj); } _Py_NewReference(op); return op; } #define PyObject_INIT(op, typeobj) \ _PyObject_INIT(_PyObject_CAST(op), (typeobj)) static inline PyVarObject* _PyObject_INIT_VAR(PyVarObject op, PyTypeObject typeobj, Py_ssize_t size) { assert(op != NULL); Py_SET_SIZE(op, size); PyObject_INIT((PyObject )op, typeobj); return op; } #define PyObject_INIT_VAR(op, typeobj, size) \ _PyObject_INIT_VAR(_PyVarObject_CAST(op), (typeobj), (size)) / This function returns the number of allocated memory blocks, regardless of size / PyAPI_FUNC(Py_ssize_t) _Py_GetAllocatedBlocks(void); / Macros / #ifdef WITH_PYMALLOC PyAPI_FUNC(int) _PyObject_DebugMallocStats(FILE out); #endif typedef struct { /* user context passed as the first argument to the 2 functions / void ctx; /* allocate an arena of size bytes / void (alloc) (void ctx, size_t size); /* free an arena / void (free) (void ctx, void ptr, size_t size); } PyObjectArenaAllocator; /* Get the arena allocator. / PyAPI_FUNC(void) PyObject_GetArenaAllocator(PyObjectArenaAllocator allocator); /* Set the arena allocator. / PyAPI_FUNC(void) PyObject_SetArenaAllocator(PyObjectArenaAllocator allocator); PyAPI_FUNC(Py_ssize_t) _PyGC_CollectNoFail(void); PyAPI_FUNC(Py_ssize_t) _PyGC_CollectIfEnabled(void); /* Test if an object implements the garbage collector protocol / PyAPI_FUNC(int) PyObject_IS_GC(PyObject obj); /* Code built with Py_BUILD_CORE must include pycore_gc.h instead which defines a different _PyGC_FINALIZED() macro. / #ifndef Py_BUILD_CORE // Kept for backward compatibility with Python 3.8 # define _PyGC_FINALIZED(o) PyObject_GC_IsFinalized(o) #endif PyAPI_FUNC(PyObject ) _PyObject_GC_Malloc(size_t size); PyAPI_FUNC(PyObject ) _PyObject_GC_Calloc(size_t size); / Test if a type supports weak references / #define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0) PyAPI_FUNC(PyObject ) PyObject_GET_WEAKREFS_LISTPTR(PyObject op); #ifdef __cplusplus } #endif Back

Edit File : objimpl.h | Size : 4.35 KB

#ifndef Py_CPYTHON_OBJIMPL_H
#  error "this header file must not be included directly"
#endif

#ifdef __cplusplus
extern "C" {
#endif

#define _PyObject_SIZE(typeobj) ( (typeobj)->tp_basicsize )

/* _PyObject_VAR_SIZE returns the number of bytes (as size_t) allocated for a
   vrbl-size object with nitems items, exclusive of gc overhead (if any).  The
   value is rounded up to the closest multiple of sizeof(void *), in order to
   ensure that pointer fields at the end of the object are correctly aligned
   for the platform (this is of special importance for subclasses of, e.g.,
   str or int, so that pointers can be stored after the embedded data).

Note that there's no memory wastage in doing this, as malloc has to
   return (at worst) pointer-aligned memory anyway.
*/
#if ((SIZEOF_VOID_P - 1) & SIZEOF_VOID_P) != 0
#   error "_PyObject_VAR_SIZE requires SIZEOF_VOID_P be a power of 2"
#endif

#define _PyObject_VAR_SIZE(typeobj, nitems)     \
    _Py_SIZE_ROUND_UP((typeobj)->tp_basicsize + \
        (nitems)*(typeobj)->tp_itemsize,        \
        SIZEOF_VOID_P)

/* 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):
       1) the actual allocation of the object storage;
       2) the initialization of the Python specific fields
      in this storage with PyObject_{Init, InitVar}.

PyObject *
   YourObject_New(...)
   {
       PyObject *op;

op = (PyObject *) Your_Allocator(_PyObject_SIZE(YourTypeStruct));
       if (op == NULL)
       return PyErr_NoMemory();

PyObject_Init(op, &YourTypeStruct);

op->ob_field = value;
       ...
       return op;
   }

Note that in C++, the use of the new operator usually implies that
   the 1st step is performed automatically for you, so in a C++ class
   constructor you would start directly with PyObject_Init/InitVar. */

/* Inline functions trading binary compatibility for speed:
   PyObject_INIT() is the fast version of PyObject_Init(), and
   PyObject_INIT_VAR() is the fast version of PyObject_InitVar().

These inline functions must not be called with op=NULL. */
static inline PyObject*
_PyObject_INIT(PyObject *op, PyTypeObject *typeobj)
{
    assert(op != NULL);
    Py_SET_TYPE(op, typeobj);
    if (PyType_GetFlags(typeobj) & Py_TPFLAGS_HEAPTYPE) {
        Py_INCREF(typeobj);
    }
    _Py_NewReference(op);
    return op;
}

#define PyObject_INIT(op, typeobj) \
    _PyObject_INIT(_PyObject_CAST(op), (typeobj))

static inline PyVarObject*
_PyObject_INIT_VAR(PyVarObject *op, PyTypeObject *typeobj, Py_ssize_t size)
{
    assert(op != NULL);
    Py_SET_SIZE(op, size);
    PyObject_INIT((PyObject *)op, typeobj);
    return op;
}

#define PyObject_INIT_VAR(op, typeobj, size) \
    _PyObject_INIT_VAR(_PyVarObject_CAST(op), (typeobj), (size))

/* This function returns the number of allocated memory blocks, regardless of size */
PyAPI_FUNC(Py_ssize_t) _Py_GetAllocatedBlocks(void);

/* Macros */
#ifdef WITH_PYMALLOC
PyAPI_FUNC(int) _PyObject_DebugMallocStats(FILE *out);
#endif

typedef struct {
    /* user context passed as the first argument to the 2 functions */
    void *ctx;

/* allocate an arena of size bytes */
    void* (*alloc) (void *ctx, size_t size);

/* free an arena */
    void (*free) (void *ctx, void *ptr, size_t size);
} PyObjectArenaAllocator;

/* Get the arena allocator. */
PyAPI_FUNC(void) PyObject_GetArenaAllocator(PyObjectArenaAllocator *allocator);

/* Set the arena allocator. */
PyAPI_FUNC(void) PyObject_SetArenaAllocator(PyObjectArenaAllocator *allocator);

PyAPI_FUNC(Py_ssize_t) _PyGC_CollectNoFail(void);
PyAPI_FUNC(Py_ssize_t) _PyGC_CollectIfEnabled(void);

/* Test if an object implements the garbage collector protocol */
PyAPI_FUNC(int) PyObject_IS_GC(PyObject *obj);

/* Code built with Py_BUILD_CORE must include pycore_gc.h instead which
   defines a different _PyGC_FINALIZED() macro. */
#ifndef Py_BUILD_CORE
   // Kept for backward compatibility with Python 3.8
#  define _PyGC_FINALIZED(o) PyObject_GC_IsFinalized(o)
#endif

PyAPI_FUNC(PyObject *) _PyObject_GC_Malloc(size_t size);
PyAPI_FUNC(PyObject *) _PyObject_GC_Calloc(size_t size);

/* Test if a type supports weak references */
#define PyType_SUPPORTS_WEAKREFS(t) ((t)->tp_weaklistoffset > 0)

PyAPI_FUNC(PyObject **) PyObject_GET_WEAKREFS_LISTPTR(PyObject *op);

#ifdef __cplusplus
}
#endif

Back