lib/talloc/pytalloc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Python/Talloc glue
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include <talloc.h>
  21 #include <pytalloc.h>
  22
  23 /**
  24  * Simple dealloc for talloc-wrapping PyObjects
  25  */
  26 void py_talloc_dealloc(PyObject* self)
  27 {
  28         py_talloc_Object *obj = (py_talloc_Object *)self;
  29         talloc_free(obj->talloc_ctx);
  30         obj->talloc_ctx = NULL;
  31         self->ob_type->tp_free(self);
  32 }
  33
  34 /**
  35  * Import an existing talloc pointer into a Python object.
  36  */
  37 PyObject *py_talloc_import_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx,
  38                                                    void *ptr)
  39 {
  40         py_talloc_Object *ret = (py_talloc_Object *)py_type->tp_alloc(py_type, 0);
  41         ret->talloc_ctx = talloc_new(NULL);
  42         if (ret->talloc_ctx == NULL) {
  43                 return NULL;
  44         }
  45         if (talloc_reference(ret->talloc_ctx, mem_ctx) == NULL) {
  46                 return NULL;
  47         }
  48         ret->ptr = ptr;
  49         return (PyObject *)ret;
  50 }
  51
  52 /**
  53  * Default (but slightly more useful than the default) implementation of Repr().
  54  */
  55 PyObject *py_talloc_default_repr(PyObject *obj)
  56 {
  57         py_talloc_Object *talloc_obj = (py_talloc_Object *)obj;
  58         PyTypeObject *type = (PyTypeObject*)PyObject_Type(obj);
  59
  60         return PyString_FromFormat("<%s talloc object at 0x%x>",
  61                                    type->tp_name, (intptr_t)talloc_obj->ptr);
  62 }