lib/talloc/pytalloc.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Python Talloc Module
   4    Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2010
   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 <Python.h>
  21 #include <talloc.h>
  22 #include <pytalloc.h>
  23
  24 /* print a talloc tree report for a talloc python object */
  25 static PyObject *py_talloc_report_full(PyObject *self, PyObject *args)
  26 {
  27         PyObject *py_obj = Py_None;
  28         PyTypeObject *type;
  29
  30         if (!PyArg_ParseTuple(args, "|O", &py_obj))
  31                 return NULL;
  32
  33         if (py_obj == Py_None) {
  34                 talloc_report_full(NULL, stdout);
  35         } else {
  36                 type = (PyTypeObject*)PyObject_Type(py_obj);
  37                 talloc_report_full(py_talloc_get_mem_ctx(py_obj), stdout);
  38         }
  39         return Py_None;
  40 }
  41
  42 /* enable null tracking */
  43 static PyObject *py_talloc_enable_null_tracking(PyObject *self)
  44 {
  45         talloc_enable_null_tracking();
  46         return Py_None;
  47 }
  48
  49 /* return the number of talloc blocks */
  50 static PyObject *py_talloc_total_blocks(PyObject *self, PyObject *args)
  51 {
  52         PyObject *py_obj = Py_None;
  53         PyTypeObject *type;
  54
  55         if (!PyArg_ParseTuple(args, "|O", &py_obj))
  56                 return NULL;
  57
  58         if (py_obj == Py_None) {
  59                 return PyLong_FromLong(talloc_total_blocks(NULL));
  60         }
  61
  62         type = (PyTypeObject*)PyObject_Type(py_obj);
  63
  64         return PyLong_FromLong(talloc_total_blocks(py_talloc_get_mem_ctx(py_obj)));
  65 }
  66
  67 static PyMethodDef talloc_methods[] = {
  68         { "report_full", (PyCFunction)py_talloc_report_full, METH_VARARGS,
  69                 "show a talloc tree for an object"},
  70         { "enable_null_tracking", (PyCFunction)py_talloc_enable_null_tracking, METH_NOARGS,
  71                 "enable tracking of the NULL object"},
  72         { "total_blocks", (PyCFunction)py_talloc_total_blocks, METH_VARARGS,
  73                 "return talloc block count"},
  74         { NULL }
  75 };
  76
  77 static PyTypeObject TallocObject_Type = {
  78         .tp_name = "talloc.Object",
  79         .tp_basicsize = sizeof(py_talloc_Object),
  80         .tp_dealloc = (destructor)py_talloc_dealloc,
  81         .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
  82         .tp_repr = py_talloc_default_repr,
  83         .tp_compare = py_talloc_default_cmp,
  84 };
  85
  86 void inittalloc(void)
  87 {
  88         PyObject *m;
  89
  90         if (PyType_Ready(&TallocObject_Type) < 0)
  91                 return;
  92
  93         m = Py_InitModule3("talloc", talloc_methods, "Debug utilities for talloc-wrapped objects.");
  94         if (m == NULL)
  95                 return;
  96
  97         Py_INCREF(&TallocObject_Type);
  98         PyModule_AddObject(m, "Object", (PyObject *)&TallocObject_Type);
  99 }