Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 1 | #ifndef Py_OBJIMPL_H |
| 2 | #define Py_OBJIMPL_H |
| 3 | #ifdef __cplusplus |
| 4 | extern "C" { |
| 5 | #endif |
| 6 | |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 7 | /*********************************************************** |
Guido van Rossum | 5799b52 | 1995-01-04 19:06:22 +0000 | [diff] [blame] | 8 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 9 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 10 | |
| 11 | All Rights Reserved |
| 12 | |
| 13 | Permission to use, copy, modify, and distribute this software and its |
| 14 | documentation for any purpose and without fee is hereby granted, |
| 15 | provided that the above copyright notice appear in all copies and that |
| 16 | both that copyright notice and this permission notice appear in |
| 17 | supporting documentation, and that the names of Stichting Mathematisch |
| 18 | Centrum or CWI not be used in advertising or publicity pertaining to |
| 19 | distribution of the software without specific, written prior permission. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| 22 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| 23 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE |
| 24 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 25 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 26 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT |
| 27 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 28 | |
| 29 | ******************************************************************/ |
| 30 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 31 | /* |
| 32 | 123456789-123456789-123456789-123456789-123456789-123456789-123456789-12 |
| 33 | |
| 34 | Additional macros for modules that implement new object types. |
| 35 | You must first include "object.h". |
| 36 | |
Guido van Rossum | caa6380 | 1995-01-12 11:45:45 +0000 | [diff] [blame] | 37 | PyObject_NEW(type, typeobj) allocates memory for a new object of the given |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 38 | type; here 'type' must be the C structure type used to represent the |
| 39 | object and 'typeobj' the address of the corresponding type object. |
| 40 | Reference count and type pointer are filled in; the rest of the bytes of |
| 41 | the object are *undefined*! The resulting expression type is 'type *'. |
| 42 | The size of the object is actually determined by the tp_basicsize field |
| 43 | of the type object. |
| 44 | |
Guido van Rossum | caa6380 | 1995-01-12 11:45:45 +0000 | [diff] [blame] | 45 | PyObject_NEW_VAR(type, typeobj, n) is similar but allocates a variable-size |
| 46 | object with n extra items. The size is computed as tp_basicsize plus |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 47 | n * tp_itemsize. This fills in the ob_size field as well. |
| 48 | */ |
| 49 | |
Guido van Rossum | 5a84914 | 1996-07-21 02:23:54 +0000 | [diff] [blame^] | 50 | #ifndef MS_COREDLL |
Guido van Rossum | caa6380 | 1995-01-12 11:45:45 +0000 | [diff] [blame] | 51 | extern PyObject *_PyObject_New Py_PROTO((PyTypeObject *)); |
Guido van Rossum | b7d3d4e | 1995-02-10 16:55:33 +0000 | [diff] [blame] | 52 | extern varobject *_PyObject_NewVar Py_PROTO((PyTypeObject *, int)); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 53 | |
Guido van Rossum | caa6380 | 1995-01-12 11:45:45 +0000 | [diff] [blame] | 54 | #define PyObject_NEW(type, typeobj) ((type *) _PyObject_New(typeobj)) |
| 55 | #define PyObject_NEW_VAR(type, typeobj, n) ((type *) _PyObject_NewVar(typeobj, n)) |
Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 56 | |
Guido van Rossum | 5a84914 | 1996-07-21 02:23:54 +0000 | [diff] [blame^] | 57 | #else |
| 58 | /* For an MS-Windows DLL, we change the way an object is created, so that the |
| 59 | extension module's malloc is used, rather than the core DLL malloc, as there is |
| 60 | no guarantee they will use the same heap |
| 61 | */ |
| 62 | extern PyObject *_PyObject_New Py_PROTO((PyTypeObject *, PyObject *)); |
| 63 | extern varobject *_PyObject_NewVar Py_PROTO((PyTypeObject *, int, varobject *)); |
| 64 | |
| 65 | #define PyObject_NEW(type, typeobj) ((type *) _PyObject_New(typeobj,(PyObject *)malloc((typeobj)->tp_basicsize))) |
| 66 | #define PyObject_NEW_VAR(type, typeobj, n) ((type *) _PyObject_NewVar(typeobj, n, (varobject *)malloc((typeobj)->tp_basicsize + n * (typeobj)->tp_itemsize))) |
| 67 | |
| 68 | #endif /* MS_COREDLL */ |
| 69 | |
Guido van Rossum | a330996 | 1993-07-28 09:05:47 +0000 | [diff] [blame] | 70 | #ifdef __cplusplus |
| 71 | } |
| 72 | #endif |
| 73 | #endif /* !Py_OBJIMPL_H */ |