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1: #ifndef Py_OBJECT_H 2: #define Py_OBJECT_H 3: #ifdef __cplusplus 4: extern "C" { 5: #endif 6: 7: 8: /* Object and type object interface */ 9: 10: /* 11: Objects are structures allocated on the heap. Special rules apply to 12: the use of objects to ensure they are properly garbage-collected. 13: Objects are never allocated statically or on the stack; they must be 14: accessed through special macros and functions only. (Type objects are 15: exceptions to the first rule; the standard types are represented by 16: statically initialized type objects, although work on type/class unification 17: for Python 2.2 made it possible to have heap-allocated type objects too). 18: 19: An object has a 'reference count' that is increased or decreased when a 20: pointer to the object is copied or deleted; when the reference count 21: reaches zero there are no references to the object left and it can be 22: removed from the heap. 23: 24: An object has a 'type' that determines what it represents and what kind 25: of data it contains. An object's type is fixed when it is created. 26: Types themselves are represented as objects; an object contains a 27: pointer to the corresponding type object. The type itself has a type 28: pointer pointing to the object representing the type 'type', which 29: contains a pointer to itself!). 30: 31: Objects do not float around in memory; once allocated an object keeps 32: the same size and address. Objects that must hold variable-size data 33: can contain pointers to variable-size parts of the object. Not all 34: objects of the same type have the same size; but the size cannot change 35: after allocation. (These restrictions are made so a reference to an 36: object can be simply a pointer -- moving an object would require 37: updating all the pointers, and changing an object's size would require 38: moving it if there was another object right next to it.) 39: 40: Objects are always accessed through pointers of the type 'PyObject *'. 41: The type 'PyObject' is a structure that only contains the reference count 42: and the type pointer. The actual memory allocated for an object 43: contains other data that can only be accessed after casting the pointer 44: to a pointer to a longer structure type. This longer type must start 45: with the reference count and type fields; the macro PyObject_HEAD should be 46: used for this (to accommodate for future changes). The implementation 47: of a particular object type can cast the object pointer to the proper 48: type and back. 49: 50: A standard interface exists for objects that contain an array of items 51: whose size is determined when the object is allocated. 52: */ 53: 54: /* Py_DEBUG implies Py_TRACE_REFS. */ 55: #if defined(Py_DEBUG) && !defined(Py_TRACE_REFS) 56: #define Py_TRACE_REFS 57: #endif 58: 59: /* Py_TRACE_REFS implies Py_REF_DEBUG. */ 60: #if defined(Py_TRACE_REFS) && !defined(Py_REF_DEBUG) 61: #define Py_REF_DEBUG 62: #endif 63: 64: #if defined(Py_LIMITED_API) && defined(Py_REF_DEBUG) 65: #error Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, and Py_REF_DEBUG 66: #endif 67: 68: 69: #ifdef Py_TRACE_REFS 70: /* Define pointers to support a doubly-linked list of all live heap objects. */ 71: #define _PyObject_HEAD_EXTRA \ 72: struct _object *_ob_next; \ 73: struct _object *_ob_prev; 74: 75: #define _PyObject_EXTRA_INIT 0, 0, 76: 77: #else 78: #define _PyObject_HEAD_EXTRA 79: #define _PyObject_EXTRA_INIT 80: #endif 81: 82: /* PyObject_HEAD defines the initial segment of every PyObject. */ 83: #define PyObject_HEAD PyObject ob_base; 84: 85: #define PyObject_HEAD_INIT(type) \ 86: { _PyObject_EXTRA_INIT \ 87: 1, type }, 88: 89: #define PyVarObject_HEAD_INIT(type, size) \ 90: { PyObject_HEAD_INIT(type) size }, 91: 92: /* PyObject_VAR_HEAD defines the initial segment of all variable-size 93: * container objects. These end with a declaration of an array with 1 94: * element, but enough space is malloc'ed so that the array actually 95: * has room for ob_size elements. Note that ob_size is an element count, 96: * not necessarily a byte count. 97: */ 98: #define PyObject_VAR_HEAD PyVarObject ob_base; 99: #define Py_INVALID_SIZE (Py_ssize_t)-1 100: 101: /* Nothing is actually declared to be a PyObject, but every pointer to 102: * a Python object can be cast to a PyObject*. This is inheritance built 103: * by hand. Similarly every pointer to a variable-size Python object can, 104: * in addition, be cast to PyVarObject*. 105: */ 106: typedef struct _object { 107: _PyObject_HEAD_EXTRA 108: Py_ssize_t ob_refcnt; 109: struct _typeobject *ob_type; 110: } PyObject; 111: 112: typedef struct { 113: PyObject ob_base; 114: Py_ssize_t ob_size; /* Number of items in variable part */ 115: } PyVarObject; 116: 117: #define Py_REFCNT(ob) (((PyObject*)(ob))->ob_refcnt) 118: #define Py_TYPE(ob) (((PyObject*)(ob))->ob_type) 119: #define Py_SIZE(ob) (((PyVarObject*)(ob))->ob_size) 120: 121: #ifndef Py_LIMITED_API 122: /********************* String Literals ****************************************/ 123: /* This structure helps managing static strings. The basic usage goes like this: 124: Instead of doing 125: 126: r = PyObject_CallMethod(o, "foo", "args", ...); 127: 128: do 129: 130: _Py_IDENTIFIER(foo); 131: ... 132: r = _PyObject_CallMethodId(o, &PyId_foo, "args", ...); 133: 134: PyId_foo is a static variable, either on block level or file level. On first 135: usage, the string "foo" is interned, and the structures are linked. On interpreter 136: shutdown, all strings are released (through _PyUnicode_ClearStaticStrings). 137: 138: Alternatively, _Py_static_string allows choosing the variable name. 139: _PyUnicode_FromId returns a borrowed reference to the interned string. 140: _PyObject_{Get,Set,Has}AttrId are __getattr__ versions using _Py_Identifier*. 141: */ 142: typedef struct _Py_Identifier { 143: struct _Py_Identifier *next; 144: const char* string; 145: PyObject *object; 146: } _Py_Identifier; 147: 148: #define _Py_static_string_init(value) { .next = NULL, .string = value, .object = NULL } 149: #define _Py_static_string(varname, value) static _Py_Identifier varname = _Py_static_string_init(value) 150: #define _Py_IDENTIFIER(varname) _Py_static_string(PyId_##varname, #varname) 151: 152: #endif /* !Py_LIMITED_API */ 153: 154: /* 155: Type objects contain a string containing the type name (to help somewhat 156: in debugging), the allocation parameters (see PyObject_New() and 157: PyObject_NewVar()), 158: and methods for accessing objects of the type. Methods are optional, a 159: nil pointer meaning that particular kind of access is not available for 160: this type. The Py_DECREF() macro uses the tp_dealloc method without 161: checking for a nil pointer; it should always be implemented except if 162: the implementation can guarantee that the reference count will never 163: reach zero (e.g., for statically allocated type objects). 164: 165: NB: the methods for certain type groups are now contained in separate 166: method blocks. 167: */ 168: 169: typedef PyObject * (*unaryfunc)(PyObject *); 170: typedef PyObject * (*binaryfunc)(PyObject *, PyObject *); 171: typedef PyObject * (*ternaryfunc)(PyObject *, PyObject *, PyObject *); 172: typedef int (*inquiry)(PyObject *); 173: typedef Py_ssize_t (*lenfunc)(PyObject *); 174: typedef PyObject *(*ssizeargfunc)(PyObject *, Py_ssize_t); 175: typedef PyObject *(*ssizessizeargfunc)(PyObject *, Py_ssize_t, Py_ssize_t); 176: typedef int(*ssizeobjargproc)(PyObject *, Py_ssize_t, PyObject *); 177: typedef int(*ssizessizeobjargproc)(PyObject *, Py_ssize_t, Py_ssize_t, PyObject *); 178: typedef int(*objobjargproc)(PyObject *, PyObject *, PyObject *); 179: 180: #ifndef Py_LIMITED_API 181: /* buffer interface */ 182: typedef struct bufferinfo { 183: void *buf; 184: PyObject *obj; /* owned reference */ 185: Py_ssize_t len; 186: Py_ssize_t itemsize; /* This is Py_ssize_t so it can be 187: pointed to by strides in simple case.*/ 188: int readonly; 189: int ndim; 190: char *format; 191: Py_ssize_t *shape; 192: Py_ssize_t *strides; 193: Py_ssize_t *suboffsets; 194: void *internal; 195: } Py_buffer; 196: 197: typedef int (*getbufferproc)(PyObject *, Py_buffer *, int); 198: typedef void (*releasebufferproc)(PyObject *, Py_buffer *); 199: 200: /* Maximum number of dimensions */ 201: #define PyBUF_MAX_NDIM 64 202: 203: /* Flags for getting buffers */ 204: #define PyBUF_SIMPLE 0 205: #define PyBUF_WRITABLE 0x0001 206: /* we used to include an E, backwards compatible alias */ 207: #define PyBUF_WRITEABLE PyBUF_WRITABLE 208: #define PyBUF_FORMAT 0x0004 209: #define PyBUF_ND 0x0008 210: #define PyBUF_STRIDES (0x0010 | PyBUF_ND) 211: #define PyBUF_C_CONTIGUOUS (0x0020 | PyBUF_STRIDES) 212: #define PyBUF_F_CONTIGUOUS (0x0040 | PyBUF_STRIDES) 213: #define PyBUF_ANY_CONTIGUOUS (0x0080 | PyBUF_STRIDES) 214: #define PyBUF_INDIRECT (0x0100 | PyBUF_STRIDES) 215: 216: #define PyBUF_CONTIG (PyBUF_ND | PyBUF_WRITABLE) 217: #define PyBUF_CONTIG_RO (PyBUF_ND) 218: 219: #define PyBUF_STRIDED (PyBUF_STRIDES | PyBUF_WRITABLE) 220: #define PyBUF_STRIDED_RO (PyBUF_STRIDES) 221: 222: #define PyBUF_RECORDS (PyBUF_STRIDES | PyBUF_WRITABLE | PyBUF_FORMAT) 223: #define PyBUF_RECORDS_RO (PyBUF_STRIDES | PyBUF_FORMAT) 224: 225: #define PyBUF_FULL (PyBUF_INDIRECT | PyBUF_WRITABLE | PyBUF_FORMAT) 226: #define PyBUF_FULL_RO (PyBUF_INDIRECT | PyBUF_FORMAT) 227: 228: 229: #define PyBUF_READ 0x100 230: #define PyBUF_WRITE 0x200 231: 232: /* End buffer interface */ 233: #endif /* Py_LIMITED_API */ 234: 235: typedef int (*objobjproc)(PyObject *, PyObject *); 236: typedef int (*visitproc)(PyObject *, void *); 237: typedef int (*traverseproc)(PyObject *, visitproc, void *); 238: 239: #ifndef Py_LIMITED_API 240: typedef struct { 241: /* Number implementations must check *both* 242: arguments for proper type and implement the necessary conversions 243: in the slot functions themselves. */ 244: 245: binaryfunc nb_add; 246: binaryfunc nb_subtract; 247: binaryfunc nb_multiply; 248: binaryfunc nb_remainder; 249: binaryfunc nb_divmod; 250: ternaryfunc nb_power; 251: unaryfunc nb_negative; 252: unaryfunc nb_positive; 253: unaryfunc nb_absolute; 254: inquiry nb_bool; 255: unaryfunc nb_invert; 256: binaryfunc nb_lshift; 257: binaryfunc nb_rshift; 258: binaryfunc nb_and; 259: binaryfunc nb_xor; 260: binaryfunc nb_or; 261: unaryfunc nb_int; 262: void *nb_reserved; /* the slot formerly known as nb_long */ 263: unaryfunc nb_float; 264: 265: binaryfunc nb_inplace_add; 266: binaryfunc nb_inplace_subtract; 267: binaryfunc nb_inplace_multiply; 268: binaryfunc nb_inplace_remainder; 269: ternaryfunc nb_inplace_power; 270: binaryfunc nb_inplace_lshift; 271: binaryfunc nb_inplace_rshift; 272: binaryfunc nb_inplace_and; 273: binaryfunc nb_inplace_xor; 274: binaryfunc nb_inplace_or; 275: 276: binaryfunc nb_floor_divide; 277: binaryfunc nb_true_divide; 278: binaryfunc nb_inplace_floor_divide; 279: binaryfunc nb_inplace_true_divide; 280: 281: unaryfunc nb_index; 282: 283: binaryfunc nb_matrix_multiply; 284: binaryfunc nb_inplace_matrix_multiply; 285: } PyNumberMethods; 286: 287: typedef struct { 288: lenfunc sq_length; 289: binaryfunc sq_concat; 290: ssizeargfunc sq_repeat; 291: ssizeargfunc sq_item; 292: void *was_sq_slice; 293: ssizeobjargproc sq_ass_item; 294: void *was_sq_ass_slice; 295: objobjproc sq_contains; 296: 297: binaryfunc sq_inplace_concat; 298: ssizeargfunc sq_inplace_repeat; 299: } PySequenceMethods; 300: 301: typedef struct { 302: lenfunc mp_length; 303: binaryfunc mp_subscript; 304: objobjargproc mp_ass_subscript; 305: } PyMappingMethods; 306: 307: typedef struct { 308: unaryfunc am_await; 309: unaryfunc am_aiter; 310: unaryfunc am_anext; 311: } PyAsyncMethods; 312: 313: typedef struct { 314: getbufferproc bf_getbuffer; 315: releasebufferproc bf_releasebuffer; 316: } PyBufferProcs; 317: #endif /* Py_LIMITED_API */ 318: 319: typedef void (*freefunc)(void *); 320: typedef void (*destructor)(PyObject *); 321: #ifndef Py_LIMITED_API 322: /* We can't provide a full compile-time check that limited-API 323: users won't implement tp_print. However, not defining printfunc 324: and making tp_print of a different function pointer type 325: should at least cause a warning in most cases. */ 326: typedef int (*printfunc)(PyObject *, FILE *, int); 327: #endif 328: typedef PyObject *(*getattrfunc)(PyObject *, char *); 329: typedef PyObject *(*getattrofunc)(PyObject *, PyObject *); 330: typedef int (*setattrfunc)(PyObject *, char *, PyObject *); 331: typedef int (*setattrofunc)(PyObject *, PyObject *, PyObject *); 332: typedef PyObject *(*reprfunc)(PyObject *); 333: typedef Py_hash_t (*hashfunc)(PyObject *); 334: typedef PyObject *(*richcmpfunc) (PyObject *, PyObject *, int); 335: typedef PyObject *(*getiterfunc) (PyObject *); 336: typedef PyObject *(*iternextfunc) (PyObject *); 337: typedef PyObject *(*descrgetfunc) (PyObject *, PyObject *, PyObject *); 338: typedef int (*descrsetfunc) (PyObject *, PyObject *, PyObject *); 339: typedef int (*initproc)(PyObject *, PyObject *, PyObject *); 340: typedef PyObject *(*newfunc)(struct _typeobject *, PyObject *, PyObject *); 341: typedef PyObject *(*allocfunc)(struct _typeobject *, Py_ssize_t); 342: 343: #ifdef Py_LIMITED_API 344: typedef struct _typeobject PyTypeObject; /* opaque */ 345: #else 346: typedef struct _typeobject { 347: PyObject_VAR_HEAD 348: const char *tp_name; /* For printing, in format "<module>.<name>" */ 349: Py_ssize_t tp_basicsize, tp_itemsize; /* For allocation */ 350: 351: /* Methods to implement standard operations */ 352: 353: destructor tp_dealloc; 354: printfunc tp_print; 355: getattrfunc tp_getattr; 356: setattrfunc tp_setattr; 357: PyAsyncMethods *tp_as_async; /* formerly known as tp_compare (Python 2) 358: or tp_reserved (Python 3) */ 359: reprfunc tp_repr; 360: 361: /* Method suites for standard classes */ 362: 363: PyNumberMethods *tp_as_number; 364: PySequenceMethods *tp_as_sequence; 365: PyMappingMethods *tp_as_mapping; 366: 367: /* More standard operations (here for binary compatibility) */ 368: 369: hashfunc tp_hash; 370: ternaryfunc tp_call; 371: reprfunc tp_str; 372: getattrofunc tp_getattro; 373: setattrofunc tp_setattro; 374: 375: /* Functions to access object as input/output buffer */ 376: PyBufferProcs *tp_as_buffer; 377: 378: /* Flags to define presence of optional/expanded features */ 379: unsigned long tp_flags; 380: 381: const char *tp_doc; /* Documentation string */ 382: 383: /* Assigned meaning in release 2.0 */ 384: /* call function for all accessible objects */ 385: traverseproc tp_traverse; 386: 387: /* delete references to contained objects */ 388: inquiry tp_clear; 389: 390: /* Assigned meaning in release 2.1 */ 391: /* rich comparisons */ 392: richcmpfunc tp_richcompare; 393: 394: /* weak reference enabler */ 395: Py_ssize_t tp_weaklistoffset; 396: 397: /* Iterators */ 398: getiterfunc tp_iter; 399: iternextfunc tp_iternext; 400: 401: /* Attribute descriptor and subclassing stuff */ 402: struct PyMethodDef *tp_methods; 403: struct PyMemberDef *tp_members; 404: struct PyGetSetDef *tp_getset; 405: struct _typeobject *tp_base; 406: PyObject *tp_dict; 407: descrgetfunc tp_descr_get; 408: descrsetfunc tp_descr_set; 409: Py_ssize_t tp_dictoffset; 410: initproc tp_init; 411: allocfunc tp_alloc; 412: newfunc tp_new; 413: freefunc tp_free; /* Low-level free-memory routine */ 414: inquiry tp_is_gc; /* For PyObject_IS_GC */ 415: PyObject *tp_bases; 416: PyObject *tp_mro; /* method resolution order */ 417: PyObject *tp_cache; 418: PyObject *tp_subclasses; 419: PyObject *tp_weaklist; 420: destructor tp_del; 421: 422: /* Type attribute cache version tag. Added in version 2.6 */ 423: unsigned int tp_version_tag; 424: 425: destructor tp_finalize; 426: 427: #ifdef COUNT_ALLOCS 428: /* these must be last and never explicitly initialized */ 429: Py_ssize_t tp_allocs; 430: Py_ssize_t tp_frees; 431: Py_ssize_t tp_maxalloc; 432: struct _typeobject *tp_prev; 433: struct _typeobject *tp_next; 434: #endif 435: } PyTypeObject; 436: #endif 437: 438: typedef struct{ 439: int slot; /* slot id, see below */ 440: void *pfunc; /* function pointer */ 441: } PyType_Slot; 442: 443: typedef struct{ 444: const char* name; 445: int basicsize; 446: int itemsize; 447: unsigned int flags; 448: PyType_Slot *slots; /* terminated by slot==0. */ 449: } PyType_Spec; 450: 451: PyAPI_FUNC(PyObject*) PyType_FromSpec(PyType_Spec*); 452: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000 453: PyAPI_FUNC(PyObject*) PyType_FromSpecWithBases(PyType_Spec*, PyObject*); 454: #endif 455: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03040000 456: PyAPI_FUNC(void*) PyType_GetSlot(PyTypeObject*, int); 457: #endif 458: 459: #ifndef Py_LIMITED_API 460: /* The *real* layout of a type object when allocated on the heap */ 461: typedef struct _heaptypeobject { 462: /* Note: there's a dependency on the order of these members 463: in slotptr() in typeobject.c . */ 464: PyTypeObject ht_type; 465: PyAsyncMethods as_async; 466: PyNumberMethods as_number; 467: PyMappingMethods as_mapping; 468: PySequenceMethods as_sequence; /* as_sequence comes after as_mapping, 469: so that the mapping wins when both 470: the mapping and the sequence define 471: a given operator (e.g. __getitem__). 472: see add_operators() in typeobject.c . */ 473: PyBufferProcs as_buffer; 474: PyObject *ht_name, *ht_slots, *ht_qualname; 475: struct _dictkeysobject *ht_cached_keys; 476: /* here are optional user slots, followed by the members. */ 477: } PyHeapTypeObject; 478: 479: /* access macro to the members which are floating "behind" the object */ 480: #define PyHeapType_GET_MEMBERS(etype) \ 481: ((PyMemberDef *)(((char *)etype) + Py_TYPE(etype)->tp_basicsize)) 482: #endif 483: 484: /* Generic type check */ 485: PyAPI_FUNC(int) PyType_IsSubtype(PyTypeObject *, PyTypeObject *); 486: #define PyObject_TypeCheck(ob, tp) \ 487: (Py_TYPE(ob) == (tp) || PyType_IsSubtype(Py_TYPE(ob), (tp))) 488: 489: PyAPI_DATA(PyTypeObject) PyType_Type; /* built-in 'type' */ 490: PyAPI_DATA(PyTypeObject) PyBaseObject_Type; /* built-in 'object' */ 491: PyAPI_DATA(PyTypeObject) PySuper_Type; /* built-in 'super' */ 492: 493: PyAPI_FUNC(unsigned long) PyType_GetFlags(PyTypeObject*); 494: 495: #define PyType_Check(op) \ 496: PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_TYPE_SUBCLASS) 497: #define PyType_CheckExact(op) (Py_TYPE(op) == &PyType_Type) 498: 499: PyAPI_FUNC(int) PyType_Ready(PyTypeObject *); 500: PyAPI_FUNC(PyObject *) PyType_GenericAlloc(PyTypeObject *, Py_ssize_t); 501: PyAPI_FUNC(PyObject *) PyType_GenericNew(PyTypeObject *, 502: PyObject *, PyObject *); 503: #ifndef Py_LIMITED_API 504: PyAPI_FUNC(PyObject *) _PyType_Lookup(PyTypeObject *, PyObject *); 505: PyAPI_FUNC(PyObject *) _PyType_LookupId(PyTypeObject *, _Py_Identifier *); 506: PyAPI_FUNC(PyObject *) _PyObject_LookupSpecial(PyObject *, _Py_Identifier *); 507: PyAPI_FUNC(PyTypeObject *) _PyType_CalculateMetaclass(PyTypeObject *, PyObject *); 508: #endif 509: PyAPI_FUNC(unsigned int) PyType_ClearCache(void); 510: PyAPI_FUNC(void) PyType_Modified(PyTypeObject *); 511: 512: #ifndef Py_LIMITED_API 513: PyAPI_FUNC(PyObject *) _PyType_GetDocFromInternalDoc(const char *, const char *); 514: PyAPI_FUNC(PyObject *) _PyType_GetTextSignatureFromInternalDoc(const char *, const char *); 515: #endif 516: 517: /* Generic operations on objects */ 518: #ifndef Py_LIMITED_API 519: struct _Py_Identifier; 520: PyAPI_FUNC(int) PyObject_Print(PyObject *, FILE *, int); 521: PyAPI_FUNC(void) _Py_BreakPoint(void); 522: PyAPI_FUNC(void) _PyObject_Dump(PyObject *); 523: #endif 524: PyAPI_FUNC(PyObject *) PyObject_Repr(PyObject *); 525: PyAPI_FUNC(PyObject *) PyObject_Str(PyObject *); 526: PyAPI_FUNC(PyObject *) PyObject_ASCII(PyObject *); 527: PyAPI_FUNC(PyObject *) PyObject_Bytes(PyObject *); 528: PyAPI_FUNC(PyObject *) PyObject_RichCompare(PyObject *, PyObject *, int); 529: PyAPI_FUNC(int) PyObject_RichCompareBool(PyObject *, PyObject *, int); 530: PyAPI_FUNC(PyObject *) PyObject_GetAttrString(PyObject *, const char *); 531: PyAPI_FUNC(int) PyObject_SetAttrString(PyObject *, const char *, PyObject *); 532: PyAPI_FUNC(int) PyObject_HasAttrString(PyObject *, const char *); 533: PyAPI_FUNC(PyObject *) PyObject_GetAttr(PyObject *, PyObject *); 534: PyAPI_FUNC(int) PyObject_SetAttr(PyObject *, PyObject *, PyObject *); 535: PyAPI_FUNC(int) PyObject_HasAttr(PyObject *, PyObject *); 536: #ifndef Py_LIMITED_API 537: PyAPI_FUNC(int) _PyObject_IsAbstract(PyObject *); 538: PyAPI_FUNC(PyObject *) _PyObject_GetAttrId(PyObject *, struct _Py_Identifier *); 539: PyAPI_FUNC(int) _PyObject_SetAttrId(PyObject *, struct _Py_Identifier *, PyObject *); 540: PyAPI_FUNC(int) _PyObject_HasAttrId(PyObject *, struct _Py_Identifier *); 541: PyAPI_FUNC(PyObject **) _PyObject_GetDictPtr(PyObject *); 542: #endif 543: PyAPI_FUNC(PyObject *) PyObject_SelfIter(PyObject *); 544: #ifndef Py_LIMITED_API 545: PyAPI_FUNC(PyObject *) _PyObject_NextNotImplemented(PyObject *); 546: #endif 547: PyAPI_FUNC(PyObject *) PyObject_GenericGetAttr(PyObject *, PyObject *); 548: PyAPI_FUNC(int) PyObject_GenericSetAttr(PyObject *, 549: PyObject *, PyObject *); 550: #if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03030000 551: PyAPI_FUNC(int) PyObject_GenericSetDict(PyObject *, PyObject *, void *); 552: #endif 553: PyAPI_FUNC(Py_hash_t) PyObject_Hash(PyObject *); 554: PyAPI_FUNC(Py_hash_t) PyObject_HashNotImplemented(PyObject *); 555: PyAPI_FUNC(int) PyObject_IsTrue(PyObject *); 556: PyAPI_FUNC(int) PyObject_Not(PyObject *); 557: PyAPI_FUNC(int) PyCallable_Check(PyObject *); 558: 559: PyAPI_FUNC(void) PyObject_ClearWeakRefs(PyObject *); 560: #ifndef Py_LIMITED_API 561: PyAPI_FUNC(void) PyObject_CallFinalizer(PyObject *); 562: PyAPI_FUNC(int) PyObject_CallFinalizerFromDealloc(PyObject *); 563: #endif 564: 565: #ifndef Py_LIMITED_API 566: /* Same as PyObject_Generic{Get,Set}Attr, but passing the attributes 567: dict as the last parameter. */ 568: PyAPI_FUNC(PyObject *) 569: _PyObject_GenericGetAttrWithDict(PyObject *, PyObject *, PyObject *); 570: PyAPI_FUNC(int) 571: _PyObject_GenericSetAttrWithDict(PyObject *, PyObject *, 572: PyObject *, PyObject *); 573: #endif /* !Py_LIMITED_API */ 574: 575: /* Helper to look up a builtin object */ 576: #ifndef Py_LIMITED_API 577: PyAPI_FUNC(PyObject *) 578: _PyObject_GetBuiltin(const char *name); 579: #endif 580: 581: /* PyObject_Dir(obj) acts like Python builtins.dir(obj), returning a 582: list of strings. PyObject_Dir(NULL) is like builtins.dir(), 583: returning the names of the current locals. In this case, if there are 584: no current locals, NULL is returned, and PyErr_Occurred() is false. 585: */ 586: PyAPI_FUNC(PyObject *) PyObject_Dir(PyObject *); 587: 588: 589: /* Helpers for printing recursive container types */ 590: PyAPI_FUNC(int) Py_ReprEnter(PyObject *); 591: PyAPI_FUNC(void) Py_ReprLeave(PyObject *); 592: 593: /* Flag bits for printing: */ 594: #define Py_PRINT_RAW 1 /* No string quotes etc. */ 595: 596: /* 597: `Type flags (tp_flags) 598: 599: These flags are used to extend the type structure in a backwards-compatible 600: fashion. Extensions can use the flags to indicate (and test) when a given 601: type structure contains a new feature. The Python core will use these when 602: introducing new functionality between major revisions (to avoid mid-version 603: changes in the PYTHON_API_VERSION). 604: 605: Arbitration of the flag bit positions will need to be coordinated among 606: all extension writers who publically release their extensions (this will 607: be fewer than you might expect!).. 608: 609: Most flags were removed as of Python 3.0 to make room for new flags. (Some 610: flags are not for backwards compatibility but to indicate the presence of an 611: optional feature; these flags remain of course.) 612: 613: Type definitions should use Py_TPFLAGS_DEFAULT for their tp_flags value. 614: 615: Code can use PyType_HasFeature(type_ob, flag_value) to test whether the 616: given type object has a specified feature. 617: */ 618: 619: /* Set if the type object is dynamically allocated */ 620: #define Py_TPFLAGS_HEAPTYPE (1UL << 9) 621: 622: /* Set if the type allows subclassing */ 623: #define Py_TPFLAGS_BASETYPE (1UL << 10) 624: 625: /* Set if the type is 'ready' -- fully initialized */ 626: #define Py_TPFLAGS_READY (1UL << 12) 627: 628: /* Set while the type is being 'readied', to prevent recursive ready calls */ 629: #define Py_TPFLAGS_READYING (1UL << 13) 630: 631: /* Objects support garbage collection (see objimp.h) */ 632: #define Py_TPFLAGS_HAVE_GC (1UL << 14) 633: 634: /* These two bits are preserved for Stackless Python, next after this is 17 */ 635: #ifdef STACKLESS 636: #define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION (3UL << 15) 637: #else 638: #define Py_TPFLAGS_HAVE_STACKLESS_EXTENSION 0 639: #endif 640: 641: /* Objects support type attribute cache */ 642: #define Py_TPFLAGS_HAVE_VERSION_TAG (1UL << 18) 643: #define Py_TPFLAGS_VALID_VERSION_TAG (1UL << 19) 644: 645: /* Type is abstract and cannot be instantiated */ 646: #define Py_TPFLAGS_IS_ABSTRACT (1UL << 20) 647: 648: /* These flags are used to determine if a type is a subclass. */ 649: #define Py_TPFLAGS_LONG_SUBCLASS (1UL << 24) 650: #define Py_TPFLAGS_LIST_SUBCLASS (1UL << 25) 651: #define Py_TPFLAGS_TUPLE_SUBCLASS (1UL << 26) 652: #define Py_TPFLAGS_BYTES_SUBCLASS (1UL << 27) 653: #define Py_TPFLAGS_UNICODE_SUBCLASS (1UL << 28) 654: #define Py_TPFLAGS_DICT_SUBCLASS (1UL << 29) 655: #define Py_TPFLAGS_BASE_EXC_SUBCLASS (1UL << 30) 656: #define Py_TPFLAGS_TYPE_SUBCLASS (1UL << 31) 657: 658: #define Py_TPFLAGS_DEFAULT ( \ 659: Py_TPFLAGS_HAVE_STACKLESS_EXTENSION | \ 660: Py_TPFLAGS_HAVE_VERSION_TAG | \ 661: 0) 662: 663: /* NOTE: The following flags reuse lower bits (removed as part of the 664: * Python 3.0 transition). */ 665: 666: /* Type structure has tp_finalize member (3.4) */ 667: #define Py_TPFLAGS_HAVE_FINALIZE (1UL << 0) 668: 669: #ifdef Py_LIMITED_API 670: #define PyType_HasFeature(t,f) ((PyType_GetFlags(t) & (f)) != 0) 671: #else 672: #define PyType_HasFeature(t,f) (((t)->tp_flags & (f)) != 0) 673: #endif 674: #define PyType_FastSubclass(t,f) PyType_HasFeature(t,f) 675: 676: 677: /* 678: The macros Py_INCREF(op) and Py_DECREF(op) are used to increment or decrement 679: reference counts. Py_DECREF calls the object's deallocator function when 680: the refcount falls to 0; for 681: objects that don't contain references to other objects or heap memory 682: this can be the standard function free(). Both macros can be used 683: wherever a void expression is allowed. The argument must not be a 684: NULL pointer. If it may be NULL, use Py_XINCREF/Py_XDECREF instead. 685: The macro _Py_NewReference(op) initialize reference counts to 1, and 686: in special builds (Py_REF_DEBUG, Py_TRACE_REFS) performs additional 687: bookkeeping appropriate to the special build. 688: 689: We assume that the reference count field can never overflow; this can 690: be proven when the size of the field is the same as the pointer size, so 691: we ignore the possibility. Provided a C int is at least 32 bits (which 692: is implicitly assumed in many parts of this code), that's enough for 693: about 2**31 references to an object. 694: 695: XXX The following became out of date in Python 2.2, but I'm not sure 696: XXX what the full truth is now. Certainly, heap-allocated type objects 697: XXX can and should be deallocated. 698: Type objects should never be deallocated; the type pointer in an object 699: is not considered to be a reference to the type object, to save 700: complications in the deallocation function. (This is actually a 701: decision that's up to the implementer of each new type so if you want, 702: you can count such references to the type object.) 703: */ 704: 705: /* First define a pile of simple helper macros, one set per special 706: * build symbol. These either expand to the obvious things, or to 707: * nothing at all when the special mode isn't in effect. The main 708: * macros can later be defined just once then, yet expand to different 709: * things depending on which special build options are and aren't in effect. 710: * Trust me <wink>: while painful, this is 20x easier to understand than, 711: * e.g, defining _Py_NewReference five different times in a maze of nested 712: * #ifdefs (we used to do that -- it was impenetrable). 713: */ 714: #ifdef Py_REF_DEBUG 715: PyAPI_DATA(Py_ssize_t) _Py_RefTotal; 716: PyAPI_FUNC(void) _Py_NegativeRefcount(const char *fname, 717: int lineno, PyObject *op); 718: PyAPI_FUNC(Py_ssize_t) _Py_GetRefTotal(void); 719: #define _Py_INC_REFTOTAL _Py_RefTotal++ 720: #define _Py_DEC_REFTOTAL _Py_RefTotal-- 721: #define _Py_REF_DEBUG_COMMA , 722: #define _Py_CHECK_REFCNT(OP) \ 723: { if (((PyObject*)OP)->ob_refcnt < 0) \ 724: _Py_NegativeRefcount(__FILE__, __LINE__, \ 725: (PyObject *)(OP)); \ 726: } 727: /* Py_REF_DEBUG also controls the display of refcounts and memory block 728: * allocations at the interactive prompt and at interpreter shutdown 729: */ 730: PyAPI_FUNC(void) _PyDebug_PrintTotalRefs(void); 731: #define _PY_DEBUG_PRINT_TOTAL_REFS() _PyDebug_PrintTotalRefs() 732: #else 733: #define _Py_INC_REFTOTAL 734: #define _Py_DEC_REFTOTAL 735: #define _Py_REF_DEBUG_COMMA 736: #define _Py_CHECK_REFCNT(OP) /* a semicolon */; 737: #define _PY_DEBUG_PRINT_TOTAL_REFS() 738: #endif /* Py_REF_DEBUG */ 739: 740: #ifdef COUNT_ALLOCS 741: PyAPI_FUNC(void) inc_count(PyTypeObject *); 742: PyAPI_FUNC(void) dec_count(PyTypeObject *); 743: #define _Py_INC_TPALLOCS(OP) inc_count(Py_TYPE(OP)) 744: #define _Py_INC_TPFREES(OP) dec_count(Py_TYPE(OP)) 745: #define _Py_DEC_TPFREES(OP) Py_TYPE(OP)->tp_frees-- 746: #define _Py_COUNT_ALLOCS_COMMA , 747: #else 748: #define _Py_INC_TPALLOCS(OP) 749: #define _Py_INC_TPFREES(OP) 750: #define _Py_DEC_TPFREES(OP) 751: #define _Py_COUNT_ALLOCS_COMMA 752: #endif /* COUNT_ALLOCS */ 753: 754: #ifdef Py_TRACE_REFS 755: /* Py_TRACE_REFS is such major surgery that we call external routines. */ 756: PyAPI_FUNC(void) _Py_NewReference(PyObject *); 757: PyAPI_FUNC(void) _Py_ForgetReference(PyObject *); 758: PyAPI_FUNC(void) _Py_Dealloc(PyObject *); 759: PyAPI_FUNC(void) _Py_PrintReferences(FILE *); 760: PyAPI_FUNC(void) _Py_PrintReferenceAddresses(FILE *); 761: PyAPI_FUNC(void) _Py_AddToAllObjects(PyObject *, int force); 762: 763: #else 764: /* Without Py_TRACE_REFS, there's little enough to do that we expand code 765: * inline. 766: */ 767: #define _Py_NewReference(op) ( \ 768: _Py_INC_TPALLOCS(op) _Py_COUNT_ALLOCS_COMMA \ 769: _Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \ 770: Py_REFCNT(op) = 1) 771: 772: #define _Py_ForgetReference(op) _Py_INC_TPFREES(op) 773: 774: #ifdef Py_LIMITED_API 775: PyAPI_FUNC(void) _Py_Dealloc(PyObject *); 776: #else 777: #define _Py_Dealloc(op) ( \ 778: _Py_INC_TPFREES(op) _Py_COUNT_ALLOCS_COMMA \ 779: (*Py_TYPE(op)->tp_dealloc)((PyObject *)(op))) 780: #endif 781: #endif /* !Py_TRACE_REFS */ 782: 783: #define Py_INCREF(op) ( \ 784: _Py_INC_REFTOTAL _Py_REF_DEBUG_COMMA \ 785: ((PyObject *)(op))->ob_refcnt++) 786: 787: #define Py_DECREF(op) \ 788: do { \ 789: PyObject *_py_decref_tmp = (PyObject *)(op); \ 790: if (_Py_DEC_REFTOTAL _Py_REF_DEBUG_COMMA \ 791: --(_py_decref_tmp)->ob_refcnt != 0) \ 792: _Py_CHECK_REFCNT(_py_decref_tmp) \ 793: else \ 794: _Py_Dealloc(_py_decref_tmp); \ 795: } while (0) 796: 797: /* Safely decref `op` and set `op` to NULL, especially useful in tp_clear 798: * and tp_dealloc implementations. 799: * 800: * Note that "the obvious" code can be deadly: 801: * 802: * Py_XDECREF(op); 803: * op = NULL; 804: * 805: * Typically, `op` is something like self->containee, and `self` is done 806: * using its `containee` member. In the code sequence above, suppose 807: * `containee` is non-NULL with a refcount of 1. Its refcount falls to 808: * 0 on the first line, which can trigger an arbitrary amount of code, 809: * possibly including finalizers (like __del__ methods or weakref callbacks) 810: * coded in Python, which in turn can release the GIL and allow other threads 811: * to run, etc. Such code may even invoke methods of `self` again, or cause 812: * cyclic gc to trigger, but-- oops! --self->containee still points to the 813: * object being torn down, and it may be in an insane state while being torn 814: * down. This has in fact been a rich historic source of miserable (rare & 815: * hard-to-diagnose) segfaulting (and other) bugs. 816: * 817: * The safe way is: 818: * 819: * Py_CLEAR(op); 820: * 821: * That arranges to set `op` to NULL _before_ decref'ing, so that any code 822: * triggered as a side-effect of `op` getting torn down no longer believes 823: * `op` points to a valid object. 824: * 825: * There are cases where it's safe to use the naive code, but they're brittle. 826: * For example, if `op` points to a Python integer, you know that destroying 827: * one of those can't cause problems -- but in part that relies on that 828: * Python integers aren't currently weakly referencable. Best practice is 829: * to use Py_CLEAR() even if you can't think of a reason for why you need to. 830: */ 831: #define Py_CLEAR(op) \ 832: do { \ 833: PyObject *_py_tmp = (PyObject *)(op); \ 834: if (_py_tmp != NULL) { \ 835: (op) = NULL; \ 836: Py_DECREF(_py_tmp); \ 837: } \ 838: } while (0) 839: 840: /* Macros to use in case the object pointer may be NULL: */ 841: #define Py_XINCREF(op) \ 842: do { \ 843: PyObject *_py_xincref_tmp = (PyObject *)(op); \ 844: if (_py_xincref_tmp != NULL) \ 845: Py_INCREF(_py_xincref_tmp); \ 846: } while (0) 847: 848: #define Py_XDECREF(op) \ 849: do { \ 850: PyObject *_py_xdecref_tmp = (PyObject *)(op); \ 851: if (_py_xdecref_tmp != NULL) \ 852: Py_DECREF(_py_xdecref_tmp); \ 853: } while (0) 854: 855: #ifndef Py_LIMITED_API 856: /* Safely decref `op` and set `op` to `op2`. 857: * 858: * As in case of Py_CLEAR "the obvious" code can be deadly: 859: * 860: * Py_DECREF(op); 861: * op = op2; 862: * 863: * The safe way is: 864: * 865: * Py_SETREF(op, op2); 866: * 867: * That arranges to set `op` to `op2` _before_ decref'ing, so that any code 868: * triggered as a side-effect of `op` getting torn down no longer believes 869: * `op` points to a valid object. 870: * 871: * Py_XSETREF is a variant of Py_SETREF that uses Py_XDECREF instead of 872: * Py_DECREF. 873: */ 874: 875: #define Py_SETREF(op, op2) \ 876: do { \ 877: PyObject *_py_tmp = (PyObject *)(op); \ 878: (op) = (op2); \ 879: Py_DECREF(_py_tmp); \ 880: } while (0) 881: 882: #define Py_XSETREF(op, op2) \ 883: do { \ 884: PyObject *_py_tmp = (PyObject *)(op); \ 885: (op) = (op2); \ 886: Py_XDECREF(_py_tmp); \ 887: } while (0) 888: 889: #endif /* ifndef Py_LIMITED_API */ 890: 891: /* 892: These are provided as conveniences to Python runtime embedders, so that 893: they can have object code that is not dependent on Python compilation flags. 894: */ 895: PyAPI_FUNC(void) Py_IncRef(PyObject *); 896: PyAPI_FUNC(void) Py_DecRef(PyObject *); 897: 898: #ifndef Py_LIMITED_API 899: PyAPI_DATA(PyTypeObject) _PyNone_Type; 900: PyAPI_DATA(PyTypeObject) _PyNotImplemented_Type; 901: #endif /* !Py_LIMITED_API */ 902: 903: /* 904: _Py_NoneStruct is an object of undefined type which can be used in contexts 905: where NULL (nil) is not suitable (since NULL often means 'error'). 906: 907: Don't forget to apply Py_INCREF() when returning this value!!! 908: */ 909: PyAPI_DATA(PyObject) _Py_NoneStruct; /* Don't use this directly */ 910: #define Py_None (&_Py_NoneStruct) 911: 912: /* Macro for returning Py_None from a function */ 913: #define Py_RETURN_NONE return Py_INCREF(Py_None), Py_None 914: 915: /* 916: Py_NotImplemented is a singleton used to signal that an operation is 917: not implemented for a given type combination. 918: */ 919: PyAPI_DATA(PyObject) _Py_NotImplementedStruct; /* Don't use this directly */ 920: #define Py_NotImplemented (&_Py_NotImplementedStruct) 921: 922: /* Macro for returning Py_NotImplemented from a function */ 923: #define Py_RETURN_NOTIMPLEMENTED \ 924: return Py_INCREF(Py_NotImplemented), Py_NotImplemented 925: 926: /* Rich comparison opcodes */ 927: #define Py_LT 0 928: #define Py_LE 1 929: #define Py_EQ 2 930: #define Py_NE 3 931: #define Py_GT 4 932: #define Py_GE 5 933: 934: #ifndef Py_LIMITED_API 935: /* Maps Py_LT to Py_GT, ..., Py_GE to Py_LE. 936: * Defined in object.c. 937: */ 938: PyAPI_DATA(int) _Py_SwappedOp[]; 939: #endif /* !Py_LIMITED_API */ 940: 941: 942: /* 943: More conventions 944: ================ 945: 946: Argument Checking 947: ----------------- 948: 949: Functions that take objects as arguments normally don't check for nil 950: arguments, but they do check the type of the argument, and return an 951: error if the function doesn't apply to the type. 952: 953: Failure Modes 954: ------------- 955: 956: Functions may fail for a variety of reasons, including running out of 957: memory. This is communicated to the caller in two ways: an error string 958: is set (see errors.h), and the function result differs: functions that 959: normally return a pointer return NULL for failure, functions returning 960: an integer return -1 (which could be a legal return value too!), and 961: other functions return 0 for success and -1 for failure. 962: Callers should always check for errors before using the result. If 963: an error was set, the caller must either explicitly clear it, or pass 964: the error on to its caller. 965: 966: Reference Counts 967: ---------------- 968: 969: It takes a while to get used to the proper usage of reference counts. 970: 971: Functions that create an object set the reference count to 1; such new 972: objects must be stored somewhere or destroyed again with Py_DECREF(). 973: Some functions that 'store' objects, such as PyTuple_SetItem() and 974: PyList_SetItem(), 975: don't increment the reference count of the object, since the most 976: frequent use is to store a fresh object. Functions that 'retrieve' 977: objects, such as PyTuple_GetItem() and PyDict_GetItemString(), also 978: don't increment 979: the reference count, since most frequently the object is only looked at 980: quickly. Thus, to retrieve an object and store it again, the caller 981: must call Py_INCREF() explicitly. 982: 983: NOTE: functions that 'consume' a reference count, like 984: PyList_SetItem(), consume the reference even if the object wasn't 985: successfully stored, to simplify error handling. 986: 987: It seems attractive to make other functions that take an object as 988: argument consume a reference count; however, this may quickly get 989: confusing (even the current practice is already confusing). Consider 990: it carefully, it may save lots of calls to Py_INCREF() and Py_DECREF() at 991: times. 992: */ 993: 994: 995: /* Trashcan mechanism, thanks to Christian Tismer. 996: 997: When deallocating a container object, it's possible to trigger an unbounded 998: chain of deallocations, as each Py_DECREF in turn drops the refcount on "the 999: next" object in the chain to 0. This can easily lead to stack faults, and 1000: especially in threads (which typically have less stack space to work with). 1001: 1002: A container object that participates in cyclic gc can avoid this by 1003: bracketing the body of its tp_dealloc function with a pair of macros: 1004: 1005: static void 1006: mytype_dealloc(mytype *p) 1007: { 1008: ... declarations go here ... 1009: 1010: PyObject_GC_UnTrack(p); // must untrack first 1011: Py_TRASHCAN_SAFE_BEGIN(p) 1012: ... The body of the deallocator goes here, including all calls ... 1013: ... to Py_DECREF on contained objects. ... 1014: Py_TRASHCAN_SAFE_END(p) 1015: } 1016: 1017: CAUTION: Never return from the middle of the body! If the body needs to 1018: "get out early", put a label immediately before the Py_TRASHCAN_SAFE_END 1019: call, and goto it. Else the call-depth counter (see below) will stay 1020: above 0 forever, and the trashcan will never get emptied. 1021: 1022: How it works: The BEGIN macro increments a call-depth counter. So long 1023: as this counter is small, the body of the deallocator is run directly without 1024: further ado. But if the counter gets large, it instead adds p to a list of 1025: objects to be deallocated later, skips the body of the deallocator, and 1026: resumes execution after the END macro. The tp_dealloc routine then returns 1027: without deallocating anything (and so unbounded call-stack depth is avoided). 1028: 1029: When the call stack finishes unwinding again, code generated by the END macro 1030: notices this, and calls another routine to deallocate all the objects that 1031: may have been added to the list of deferred deallocations. In effect, a 1032: chain of N deallocations is broken into N / PyTrash_UNWIND_LEVEL pieces, 1033: with the call stack never exceeding a depth of PyTrash_UNWIND_LEVEL. 1034: */ 1035: 1036: #ifndef Py_LIMITED_API 1037: /* This is the old private API, invoked by the macros before 3.2.4. 1038: Kept for binary compatibility of extensions using the stable ABI. */ 1039: PyAPI_FUNC(void) _PyTrash_deposit_object(PyObject*); 1040: PyAPI_FUNC(void) _PyTrash_destroy_chain(void); 1041: PyAPI_DATA(int) _PyTrash_delete_nesting; 1042: PyAPI_DATA(PyObject *) _PyTrash_delete_later; 1043: #endif /* !Py_LIMITED_API */ 1044: 1045: /* The new thread-safe private API, invoked by the macros below. */ 1046: PyAPI_FUNC(void) _PyTrash_thread_deposit_object(PyObject*); 1047: PyAPI_FUNC(void) _PyTrash_thread_destroy_chain(void); 1048: 1049: #define PyTrash_UNWIND_LEVEL 50 1050: 1051: #define Py_TRASHCAN_SAFE_BEGIN(op) \ 1052: do { \ 1053: PyThreadState *_tstate = PyThreadState_GET(); \ 1054: if (_tstate->trash_delete_nesting < PyTrash_UNWIND_LEVEL) { \ 1055: ++_tstate->trash_delete_nesting; 1056: /* The body of the deallocator is here. */ 1057: #define Py_TRASHCAN_SAFE_END(op) \ 1058: --_tstate->trash_delete_nesting; \ 1059: if (_tstate->trash_delete_later && _tstate->trash_delete_nesting <= 0) \ 1060: _PyTrash_thread_destroy_chain(); \ 1061: } \ 1062: else \ 1063: _PyTrash_thread_deposit_object((PyObject*)op); \ 1064: } while (0); 1065: 1066: #ifndef Py_LIMITED_API 1067: PyAPI_FUNC(void) 1068: _PyDebugAllocatorStats(FILE *out, const char *block_name, int num_blocks, 1069: size_t sizeof_block); 1070: PyAPI_FUNC(void) 1071: _PyObject_DebugTypeStats(FILE *out); 1072: #endif /* ifndef Py_LIMITED_API */ 1073: 1074: #ifdef __cplusplus 1075: } 1076: #endif 1077: #endif /* !Py_OBJECT_H */ 1078: