Merge branch 'master' of ctdb into 'master' of samba

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Michael Adam <obnox@samba.org>

1 files changed, 134 insertions, 0 deletions

diff --git a/ctdb/lib/talloc/pytalloc.c b/ctdb/lib/talloc/pytalloc.c
new file mode 100644
index 0000000000..80196c6c77
--- /dev/null
+++ b/ctdb/lib/talloc/pytalloc.c
@@ -0,0 +1,134 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Python Talloc Module
+   Copyright (C) Jelmer Vernooij <jelmer@samba.org> 2010-2011
+
+   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 <talloc.h>
+#include <pytalloc.h>
+
+void inittalloc(void);
+
+/* print a talloc tree report for a talloc python object */
+static PyObject *pytalloc_report_full(PyObject *self, PyObject *args)
+{
+	PyObject *py_obj = Py_None;
+
+	if (!PyArg_ParseTuple(args, "|O", &py_obj))
+		return NULL;
+
+	if (py_obj == Py_None) {
+		talloc_report_full(NULL, stdout);
+	} else {
+		talloc_report_full(pytalloc_get_mem_ctx(py_obj), stdout);
+	}
+	return Py_None;
+}
+
+/* enable null tracking */
+static PyObject *pytalloc_enable_null_tracking(PyObject *self)
+{
+	talloc_enable_null_tracking();
+	return Py_None;
+}
+
+/* return the number of talloc blocks */
+static PyObject *pytalloc_total_blocks(PyObject *self, PyObject *args)
+{
+	PyObject *py_obj = Py_None;
+
+	if (!PyArg_ParseTuple(args, "|O", &py_obj))
+		return NULL;
+
+	if (py_obj == Py_None) {
+		return PyLong_FromLong(talloc_total_blocks(NULL));
+	}
+
+	return PyLong_FromLong(talloc_total_blocks(pytalloc_get_mem_ctx(py_obj)));
+}
+
+static PyMethodDef talloc_methods[] = {
+	{ "report_full", (PyCFunction)pytalloc_report_full, METH_VARARGS,
+		"show a talloc tree for an object"},
+	{ "enable_null_tracking", (PyCFunction)pytalloc_enable_null_tracking, METH_NOARGS,
+		"enable tracking of the NULL object"},
+	{ "total_blocks", (PyCFunction)pytalloc_total_blocks, METH_VARARGS,
+		"return talloc block count"},
+	{ NULL }
+};
+
+/**
+ * Default (but only slightly more useful than the default) implementation of Repr().
+ */
+static PyObject *pytalloc_default_repr(PyObject *obj)
+{
+	pytalloc_Object *talloc_obj = (pytalloc_Object *)obj;
+	PyTypeObject *type = (PyTypeObject*)PyObject_Type(obj);
+
+	return PyString_FromFormat("<%s talloc object at 0x%p>", 
+				   type->tp_name, talloc_obj->ptr);
+}
+
+/**
+ * Simple dealloc for talloc-wrapping PyObjects
+ */
+static void pytalloc_dealloc(PyObject* self)
+{
+	pytalloc_Object *obj = (pytalloc_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 pytalloc_default_cmp(PyObject *_obj1, PyObject *_obj2)
+{
+	pytalloc_Object *obj1 = (pytalloc_Object *)_obj1,
+					 *obj2 = (pytalloc_Object *)_obj2;
+	if (obj1->ob_type != obj2->ob_type)
+		return (obj1->ob_type - obj2->ob_type);
+
+	return ((char *)pytalloc_get_ptr(obj1) - (char *)pytalloc_get_ptr(obj2));
+}
+
+static PyTypeObject TallocObject_Type = {
+	.tp_name = "talloc.Object",
+	.tp_doc = "Python wrapper for a talloc-maintained object.",
+	.tp_basicsize = sizeof(pytalloc_Object),
+	.tp_dealloc = (destructor)pytalloc_dealloc,
+	.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
+	.tp_repr = pytalloc_default_repr,
+	.tp_compare = pytalloc_default_cmp,
+};
+
+void inittalloc(void)
+{
+	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);
+}