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author Guido van Rossum <guido@python.org>
date Wed, 26 Jun 1996 19:30:01 +0000
parents 44f48aaca8bf
children 65d2d8e67da3
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1 #ifndef Py_COBJECT_H
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2 #define Py_COBJECT_H
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3 #ifdef __cplusplus
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4 extern "C" {
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5 #endif
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6
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7 /***********************************************************
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8 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
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9 The Netherlands.
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10
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11 All Rights Reserved
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12
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13 Permission to use, copy, modify, and distribute this software and its
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14 documentation for any purpose and without fee is hereby granted,
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15 provided that the above copyright notice appear in all copies and that
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16 both that copyright notice and this permission notice appear in
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17 supporting documentation, and that the names of Stichting Mathematisch
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18 Centrum or CWI not be used in advertising or publicity pertaining to
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19 distribution of the software without specific, written prior permission.
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20
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21 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
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22 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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23 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
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24 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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25 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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26 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
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27 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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28
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29 ******************************************************************/
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30
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31 /* C objects to be exported from one extension module to another.
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32
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33 C objects are used for communication between extension modules.
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34 They provide a way for an extension module to export a C interface
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35 to other extension modules, so that extension modules can use the
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36 Python import mechanism to link to one another.
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37
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38 */
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39
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40 extern DL_IMPORT(PyTypeObject) PyCObject_Type;
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41
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42 #define PyCObject_Check(op) ((op)->ob_type == &PyCObject_Type)
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43
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44 /* Create a PyCObject from a pointer to a C object and an optional
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45 destrutor function. If the second argument is non-null, then it
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46 will be called with the first argument if and when the PyCObject is
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47 destroyed.
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48
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49 */
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50
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51 extern PyObject *
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52 PyCObject_FromVoidPtr Py_PROTO((void *cobj, void (*destruct)(void*)));
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53
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54 /* Retrieve a pointer to a C object from a PyCObject. */
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55 extern void *
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56 PyCObject_AsVoidPtr Py_PROTO((PyObject *));
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57
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58 #ifdef __cplusplus
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59 }
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60 #endif
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61 #endif /* !Py_COBJECT_H */