/*
Unix SMB/CIFS implementation.
- Python/Talloc glue
- Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
-
+ Python Talloc Module
+ Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2010
+
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
-
+
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
-
+
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <Python.h>
-#include "replace.h"
#include <talloc.h>
#include <pytalloc.h>
-/**
- * Simple dealloc for talloc-wrapping PyObjects
- */
-void py_talloc_dealloc(PyObject* self)
-{
- py_talloc_Object *obj = (py_talloc_Object *)self;
- talloc_free(obj->talloc_ctx);
- obj->talloc_ctx = NULL;
- self->ob_type->tp_free(self);
-}
+void inittalloc(void);
-/**
- * Import an existing talloc pointer into a Python object.
- */
-PyObject *py_talloc_steal_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx,
- void *ptr)
+/* print a talloc tree report for a talloc python object */
+static PyObject *py_talloc_report_full(PyObject *self, PyObject *args)
{
- py_talloc_Object *ret = (py_talloc_Object *)py_type->tp_alloc(py_type, 0);
- ret->talloc_ctx = talloc_new(NULL);
- if (ret->talloc_ctx == NULL) {
- return NULL;
- }
- if (talloc_steal(ret->talloc_ctx, mem_ctx) == NULL) {
+ PyObject *py_obj = Py_None;
+ PyTypeObject *type;
+
+ if (!PyArg_ParseTuple(args, "|O", &py_obj))
return NULL;
+
+ if (py_obj == Py_None) {
+ talloc_report_full(NULL, stdout);
+ } else {
+ type = (PyTypeObject*)PyObject_Type(py_obj);
+ talloc_report_full(py_talloc_get_mem_ctx(py_obj), stdout);
}
- ret->ptr = ptr;
- return (PyObject *)ret;
+ return Py_None;
}
+/* enable null tracking */
+static PyObject *py_talloc_enable_null_tracking(PyObject *self)
+{
+ talloc_enable_null_tracking();
+ return Py_None;
+}
-/**
- * Import an existing talloc pointer into a Python object, leaving the
- * original parent, and creating a reference to the object in the python
- * object
- */
-PyObject *py_talloc_reference_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx, void *ptr)
+/* return the number of talloc blocks */
+static PyObject *py_talloc_total_blocks(PyObject *self, PyObject *args)
{
- py_talloc_Object *ret = (py_talloc_Object *)py_type->tp_alloc(py_type, 0);
- ret->talloc_ctx = talloc_new(NULL);
- if (ret->talloc_ctx == NULL) {
- return NULL;
- }
- if (talloc_reference(ret->talloc_ctx, mem_ctx) == NULL) {
+ PyObject *py_obj = Py_None;
+ PyTypeObject *type;
+
+ if (!PyArg_ParseTuple(args, "|O", &py_obj))
return NULL;
+
+ if (py_obj == Py_None) {
+ return PyLong_FromLong(talloc_total_blocks(NULL));
}
- ret->ptr = ptr;
- return (PyObject *)ret;
+
+ type = (PyTypeObject*)PyObject_Type(py_obj);
+
+ return PyLong_FromLong(talloc_total_blocks(py_talloc_get_mem_ctx(py_obj)));
}
+static PyMethodDef talloc_methods[] = {
+ { "report_full", (PyCFunction)py_talloc_report_full, METH_VARARGS,
+ "show a talloc tree for an object"},
+ { "enable_null_tracking", (PyCFunction)py_talloc_enable_null_tracking, METH_NOARGS,
+ "enable tracking of the NULL object"},
+ { "total_blocks", (PyCFunction)py_talloc_total_blocks, METH_VARARGS,
+ "return talloc block count"},
+ { NULL }
+};
+
/**
- * Default (but slightly more useful than the default) implementation of Repr().
+ * Default (but only slightly more useful than the default) implementation of Repr().
*/
-PyObject *py_talloc_default_repr(PyObject *obj)
+static PyObject *py_talloc_default_repr(PyObject *obj)
{
py_talloc_Object *talloc_obj = (py_talloc_Object *)obj;
PyTypeObject *type = (PyTypeObject*)PyObject_Type(obj);
type->tp_name, talloc_obj->ptr);
}
-static void py_cobject_talloc_free(void *ptr)
+/**
+ * Simple dealloc for talloc-wrapping PyObjects
+ */
+static void py_talloc_dealloc(PyObject* self)
+{
+ py_talloc_Object *obj = (py_talloc_Object *)self;
+ assert(talloc_unlink(NULL, obj->talloc_ctx) != -1);
+ obj->talloc_ctx = NULL;
+ self->ob_type->tp_free(self);
+}
+
+/**
+ * Default (but only slightly more useful than the default) implementation of cmp.
+ */
+static int py_talloc_default_cmp(PyObject *_obj1, PyObject *_obj2)
{
- talloc_free(ptr);
+ py_talloc_Object *obj1 = (py_talloc_Object *)_obj1,
+ *obj2 = (py_talloc_Object *)_obj2;
+ if (obj1->ob_type != obj2->ob_type)
+ return (obj1->ob_type - obj2->ob_type);
+
+ return ((char *)py_talloc_get_ptr(obj1) - (char *)py_talloc_get_ptr(obj2));
}
-PyObject *PyCObject_FromTallocPtr(void *ptr)
+static PyTypeObject TallocObject_Type = {
+ .tp_name = "talloc.Object",
+ .tp_doc = "Python wrapper for a talloc-maintained object.",
+ .tp_basicsize = sizeof(py_talloc_Object),
+ .tp_dealloc = (destructor)py_talloc_dealloc,
+ .tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+ .tp_repr = py_talloc_default_repr,
+ .tp_compare = py_talloc_default_cmp,
+};
+
+void inittalloc(void)
{
- return PyCObject_FromVoidPtr(ptr, py_cobject_talloc_free);
+ PyObject *m;
+
+ if (PyType_Ready(&TallocObject_Type) < 0)
+ return;
+
+ m = Py_InitModule3("talloc", talloc_methods,
+ "Python wrapping of talloc-maintained objects.");
+ if (m == NULL)
+ return;
+
+ Py_INCREF(&TallocObject_Type);
+ PyModule_AddObject(m, "Object", (PyObject *)&TallocObject_Type);
}
git.samba.org / nivanova / samba-autobuild / .git / blobdiff