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https://github.com/samba-team/samba.git
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58d92cefe2
NULL is converted to Py_None
131 lines
3.3 KiB
C
131 lines
3.3 KiB
C
/*
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Unix SMB/CIFS implementation.
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Python/Talloc glue
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Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <Python.h>
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#include "replace.h"
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#include <talloc.h>
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#include "pytalloc.h"
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/**
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* Simple dealloc for talloc-wrapping PyObjects
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*/
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void py_talloc_dealloc(PyObject* self)
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{
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py_talloc_Object *obj = (py_talloc_Object *)self;
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talloc_free(obj->talloc_ctx);
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obj->talloc_ctx = NULL;
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self->ob_type->tp_free(self);
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}
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/**
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* Import an existing talloc pointer into a Python object.
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*/
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PyObject *py_talloc_steal_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx,
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void *ptr)
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{
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py_talloc_Object *ret = (py_talloc_Object *)py_type->tp_alloc(py_type, 0);
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ret->talloc_ctx = talloc_new(NULL);
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if (ret->talloc_ctx == NULL) {
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return NULL;
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}
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if (talloc_steal(ret->talloc_ctx, mem_ctx) == NULL) {
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return NULL;
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}
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talloc_set_name_const(ret->talloc_ctx, py_type->tp_name);
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ret->ptr = ptr;
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return (PyObject *)ret;
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}
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/**
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* Import an existing talloc pointer into a Python object.
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*/
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PyObject *py_talloc_steal(PyTypeObject *py_type, void *ptr)
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{
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return py_talloc_steal_ex(py_type, ptr, ptr);
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}
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/**
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* Import an existing talloc pointer into a Python object, leaving the
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* original parent, and creating a reference to the object in the python
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* object
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*/
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PyObject *py_talloc_reference_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx, void *ptr)
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{
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py_talloc_Object *ret;
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if (ptr == NULL) {
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Py_RETURN_NONE;
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}
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ret = (py_talloc_Object *)py_type->tp_alloc(py_type, 0);
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ret->talloc_ctx = talloc_new(NULL);
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if (ret->talloc_ctx == NULL) {
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return NULL;
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}
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if (talloc_reference(ret->talloc_ctx, mem_ctx) == NULL) {
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return NULL;
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}
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talloc_set_name_const(ret->talloc_ctx, py_type->tp_name);
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ret->ptr = ptr;
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return (PyObject *)ret;
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}
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/**
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* Default (but slightly more useful than the default) implementation of Repr().
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*/
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PyObject *py_talloc_default_repr(PyObject *obj)
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{
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py_talloc_Object *talloc_obj = (py_talloc_Object *)obj;
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PyTypeObject *type = (PyTypeObject*)PyObject_Type(obj);
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return PyString_FromFormat("<%s talloc object at 0x%p>",
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type->tp_name, talloc_obj->ptr);
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}
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static void py_cobject_talloc_free(void *ptr)
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{
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talloc_free(ptr);
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}
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PyObject *PyCObject_FromTallocPtr(void *ptr)
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{
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if (ptr == NULL) {
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Py_RETURN_NONE;
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}
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return PyCObject_FromVoidPtr(ptr, py_cobject_talloc_free);
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}
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PyObject *PyString_FromString_check_null(const char *ptr)
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{
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if (ptr == NULL) {
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Py_RETURN_NONE;
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}
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return PyString_FromString(ptr);
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}
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PyObject *PyUnicode_Decode_check_null(const void *ptr, size_t len,
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const char *charset, const char *options)
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{
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if (ptr == NULL) {
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Py_RETURN_NONE;
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}
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return PyUnicode_Decode(ptr, len, charset, options);
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}
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