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annotate Include/cobject.h @ 25838:8540887bcec6 2.2

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Backport of 2.183: Fix memory leak in add_subclass() found by NealN with valgrind.
author Guido van Rossum <guido@python.org>
date Fri, 18 Oct 2002 13:42:21 +0000
parents 6f6f965c5e2d
children c1eb668525e1
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1
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2 /* C objects to be exported from one extension module to another.
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3
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4 C objects are used for communication between extension modules.
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5 They provide a way for an extension module to export a C interface
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6 to other extension modules, so that extension modules can use the
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7 Python import mechanism to link to one another.
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9 */
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10
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11 #ifndef Py_COBJECT_H
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12 #define Py_COBJECT_H
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13 #ifdef __cplusplus
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14 extern "C" {
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15 #endif
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16
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17 extern DL_IMPORT(PyTypeObject) PyCObject_Type;
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19 #define PyCObject_Check(op) ((op)->ob_type == &PyCObject_Type)
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21 /* Create a PyCObject from a pointer to a C object and an optional
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22 destructor function. If the second argument is non-null, then it
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23 will be called with the first argument if and when the PyCObject is
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24 destroyed.
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26 */
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27 extern DL_IMPORT(PyObject *)
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28 PyCObject_FromVoidPtr(void *cobj, void (*destruct)(void*));
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31 /* Create a PyCObject from a pointer to a C object, a description object,
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32 and an optional destructor function. If the third argument is non-null,
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33 then it will be called with the first and second arguments if and when
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34 the PyCObject is destroyed.
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35 */
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36 extern DL_IMPORT(PyObject *)
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37 PyCObject_FromVoidPtrAndDesc(void *cobj, void *desc,
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38 void (*destruct)(void*,void*));
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40 /* Retrieve a pointer to a C object from a PyCObject. */
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41 extern DL_IMPORT(void *)
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42 PyCObject_AsVoidPtr(PyObject *);
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44 /* Retrieve a pointer to a description object from a PyCObject. */
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45 extern DL_IMPORT(void *)
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46 PyCObject_GetDesc(PyObject *);
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48 /* Import a pointer to a C object from a module using a PyCObject. */
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49 extern DL_IMPORT(void *)
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50 PyCObject_Import(char *module_name, char *cobject_name);
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52 #ifdef __cplusplus
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53 }
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54 #endif
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55 #endif /* !Py_COBJECT_H */