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Added PyCObject_Import.

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This commit is contained in:
Guido van Rossum 1997-01-22 20:48:48 +00:00
parent 43d287ad73
commit e0e696282f
3 changed files with 44 additions and 18 deletions
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4
Include/cobject.h
View file

@ -62,6 +62,10 @@ PyCObject_FromVoidPtr Py_PROTO((void *cobj, void (*destruct)(void*)));
extern void * extern void *
PyCObject_AsVoidPtr Py_PROTO((PyObject *)); PyCObject_AsVoidPtr Py_PROTO((PyObject *));
/* Import a pointer to a C object from a module using a PyCObject. */
extern void *
PyCObject_Import Py_PROTO((char *module_name, char *cobject_name));
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

57
Objects/cobject.c
View file

@ -57,6 +57,44 @@ PyCObject_FromVoidPtr(cobj, destr)
return (PyObject *)self; return (PyObject *)self;
} }
void *
PyCObject_AsVoidPtr(self)
PyObject *self;
{
if(self)
{
if(self->ob_type == &PyCObject_Type)
return ((PyCObject *)self)->cobject;
PyErr_SetString(PyExc_TypeError,
"PyCObject_AsVoidPtr with non-C-object");
}
if(! PyErr_Occurred())
PyErr_SetString(PyExc_TypeError,
"PyCObject_AsVoidPtr called with null pointer");
return NULL;
}
void *
PyCObject_Import(module_name, name)
char *module_name;
char *name;
{
PyObject *m, *c;
void *r=NULL;
if(m=PyImport_ImportModule(module_name))
{
if(c=PyObject_GetAttrString(m,name))
{
r=PyCObject_AsVoidPtr(c);
Py_DECREF(c);
}
Py_DECREF(m);
}
return r;
}
static void static void
PyCObject_dealloc(self) PyCObject_dealloc(self)
PyCObject *self; PyCObject *self;
@ -65,6 +103,7 @@ PyCObject_dealloc(self)
PyMem_DEL(self); PyMem_DEL(self);
} }
static char PyCObject_Type__doc__[] = static char PyCObject_Type__doc__[] =
"C objects to be exported from one extension module to another\n\ "C objects to be exported from one extension module to another\n\
\n\ \n\
@ -98,21 +137,3 @@ PyTypeObject PyCObject_Type = {
0L,0L,0L,0L, 0L,0L,0L,0L,
PyCObject_Type__doc__ /* Documentation string */ PyCObject_Type__doc__ /* Documentation string */
}; };
void *
PyCObject_AsVoidPtr(self)
PyObject *self;
{
if(self)
{
if(self->ob_type == &PyCObject_Type)
return ((PyCObject *)self)->cobject;
PyErr_SetString(PyExc_TypeError,
"PyCObject_AsVoidPtr with non-C-object");
}
if(! PyErr_Occurred())
PyErr_SetString(
PyExc_TypeError,
"PyCObject_AsVoidPtr called with null pointer");
return NULL;
}

1
PC/python_nt.def
View file

@ -351,4 +351,5 @@ EXPORTS
_Py_c_diff _Py_c_diff
PyCObject_FromVoidPtr PyCObject_FromVoidPtr
PyCObject_AsVoidPtr PyCObject_AsVoidPtr
PyCObject_Import
Py_GetBuildInfo Py_GetBuildInfo