1 files changed, 135 insertions, 0 deletions
diff --git a/lib/talloc/pytalloc_util.c b/lib/talloc/pytalloc_util.c
new file mode 100644
index 0000000000..d5ef919bb2
--- /dev/null
+++ b/lib/talloc/pytalloc_util.c
@@ -0,0 +1,135 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Python/Talloc glue
+   Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2008
+   
+   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"
+#include <assert.h>
+
+/**
+ * Simple dealloc for talloc-wrapping PyObjects
+ */
+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);
+}
+
+/**
+ * Import an existing talloc pointer into a Python object.
+ */
+PyObject *py_talloc_steal_ex(PyTypeObject *py_type, TALLOC_CTX *mem_ctx, 
+						   void *ptr)
+{
+	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) {
+		return NULL;
+	}
+	talloc_set_name_const(ret->talloc_ctx, py_type->tp_name);
+	ret->ptr = ptr;
+	return (PyObject *)ret;
+}
+
+/**
+ * Import an existing talloc pointer into a Python object.
+ */
+PyObject *py_talloc_steal(PyTypeObject *py_type, void *ptr)
+{
+	return py_talloc_steal_ex(py_type, ptr, ptr);
+}
+
+
+/**
+ * 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)
+{
+	py_talloc_Object *ret;
+
+	if (ptr == NULL) {
+		Py_RETURN_NONE;
+	}
+
+	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) {
+		return NULL;
+	}
+	talloc_set_name_const(ret->talloc_ctx, py_type->tp_name);
+	ret->ptr = ptr;
+	return (PyObject *)ret;
+}
+
+/**
+ * Default (but only slightly more useful than the default) implementation of Repr().
+ */
+PyObject *py_talloc_default_repr(PyObject *obj)
+{
+	py_talloc_Object *talloc_obj = (py_talloc_Object *)obj;
+	PyTypeObject *type = (PyTypeObject*)PyObject_Type(obj);
+
+	return PyString_FromFormat("<%s talloc object at 0x%p>", 
+				   type->tp_name, talloc_obj->ptr);
+}
+
+/**
+ * Default (but only slightly more useful than the default) implementation of cmp.
+ */
+int py_talloc_default_cmp(PyObject *_obj1, PyObject *_obj2)
+{
+	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));
+}
+
+static void py_cobject_talloc_free(void *ptr)
+{
+	talloc_free(ptr);
+}
+
+PyObject *PyCObject_FromTallocPtr(void *ptr)
+{
+	if (ptr == NULL) {
+		Py_RETURN_NONE;
+	}
+	return PyCObject_FromVoidPtr(ptr, py_cobject_talloc_free);
+}
+
+PyObject *PyString_FromString_check_null(const char *ptr)
+{
+	if (ptr == NULL) {
+		Py_RETURN_NONE;
+	}
+	return PyString_FromString(ptr);
+}