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f7199578be
exception afterwards (for a subsequent parameter), the user code will not call PyBuffer_Release() and memory will leak. Reviewed by Amaury Forgeot d'Arc.
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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/* C objects to be exported from one extension module to another.
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C objects are used for communication between extension modules.
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They provide a way for an extension module to export a C interface
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to other extension modules, so that extension modules can use the
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Python import mechanism to link to one another.
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*/
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#ifndef Py_COBJECT_H
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#define Py_COBJECT_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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PyAPI_DATA(PyTypeObject) PyCObject_Type;
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#define PyCObject_Check(op) (Py_TYPE(op) == &PyCObject_Type)
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/* Create a PyCObject from a pointer to a C object and an optional
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destructor function. If the second argument is non-null, then it
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will be called with the first argument if and when the PyCObject is
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destroyed.
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*/
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PyAPI_FUNC(PyObject *) PyCObject_FromVoidPtr(
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void *cobj, void (*destruct)(void*));
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/* Create a PyCObject from a pointer to a C object, a description object,
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and an optional destructor function. If the third argument is non-null,
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then it will be called with the first and second arguments if and when
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the PyCObject is destroyed.
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*/
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PyAPI_FUNC(PyObject *) PyCObject_FromVoidPtrAndDesc(
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void *cobj, void *desc, void (*destruct)(void*,void*));
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/* Retrieve a pointer to a C object from a PyCObject. */
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PyAPI_FUNC(void *) PyCObject_AsVoidPtr(PyObject *);
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/* Retrieve a pointer to a description object from a PyCObject. */
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PyAPI_FUNC(void *) PyCObject_GetDesc(PyObject *);
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/* Import a pointer to a C object from a module using a PyCObject. */
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PyAPI_FUNC(void *) PyCObject_Import(char *module_name, char *cobject_name);
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/* Modify a C object. Fails (==0) if object has a destructor. */
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PyAPI_FUNC(int) PyCObject_SetVoidPtr(PyObject *self, void *cobj);
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typedef struct {
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PyObject_HEAD
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void *cobject;
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void *desc;
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void (*destructor)(void *);
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} PyCObject;
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#ifdef __cplusplus
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}
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#endif
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#endif /* !Py_COBJECT_H */
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