btrfs-progs/libbtrfsutil/python/qgroup.c

115 lines
3.1 KiB
C
Raw Normal View History

/*
* Copyright (C) 2018 Facebook
*
* This file is part of libbtrfsutil.
*
* libbtrfsutil is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libbtrfsutil 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libbtrfsutil. If not, see <http://www.gnu.org/licenses/>.
*/
#include "btrfsutilpy.h"
static void QgroupInherit_dealloc(QgroupInherit *self)
{
btrfs_util_destroy_qgroup_inherit(self->inherit);
Py_TYPE(self)->tp_free((PyObject *)self);
}
static int QgroupInherit_init(QgroupInherit *self, PyObject *args,
PyObject *kwds)
{
static char *keywords[] = {NULL};
enum btrfs_util_error err;
if (!PyArg_ParseTupleAndKeywords(args, kwds, ":QgroupInherit",
keywords))
return -1;
err = btrfs_util_create_qgroup_inherit(0, &self->inherit);
if (err) {
SetFromBtrfsUtilError(err);
return -1;
}
return 0;
}
static PyObject *QgroupInherit_getattro(QgroupInherit *self, PyObject *nameobj)
{
const char *name = "";
if (PyUnicode_Check(nameobj)) {
name = PyUnicode_AsUTF8(nameobj);
if (!name)
return NULL;
}
if (strcmp(name, "groups") == 0) {
const uint64_t *arr;
size_t n;
btrfs_util_qgroup_inherit_get_groups(self->inherit, &arr, &n);
return list_from_uint64_array(arr, n);
} else {
return PyObject_GenericGetAttr((PyObject *)self, nameobj);
}
}
static PyObject *QgroupInherit_add_group(QgroupInherit *self, PyObject *args,
PyObject *kwds)
{
static char *keywords[] = {"qgroupid", NULL};
enum btrfs_util_error err;
uint64_t qgroupid;
if (!PyArg_ParseTupleAndKeywords(args, kwds, "K:add_group", keywords,
&qgroupid))
return NULL;
err = btrfs_util_qgroup_inherit_add_group(&self->inherit, qgroupid);
if (err) {
SetFromBtrfsUtilError(err);
return NULL;
}
Py_RETURN_NONE;
}
static PyMethodDef QgroupInherit_methods[] = {
{"add_group", (PyCFunction)QgroupInherit_add_group,
METH_VARARGS | METH_KEYWORDS,
"add_group(qgroupid)\n\n"
"Add a qgroup to inherit from.\n\n"
"Arguments:\n"
"qgroupid -- ID of qgroup to add"},
{},
};
#define QgroupInherit_DOC \
"QgroupInherit() -> new qgroup inheritance specifier\n\n" \
"Create a new object which specifies what qgroups to inherit\n" \
"from for create_subvolume() and create_snapshot()"
PyTypeObject QgroupInherit_type = {
PyVarObject_HEAD_INIT(NULL, 0)
.tp_name = "btrfsutil.QgroupInherit",
.tp_basicsize = sizeof(QgroupInherit),
.tp_dealloc = (destructor)QgroupInherit_dealloc,
.tp_getattro = (getattrofunc)QgroupInherit_getattro,
.tp_flags = Py_TPFLAGS_DEFAULT,
.tp_doc = QgroupInherit_DOC,
.tp_methods = QgroupInherit_methods,
.tp_init = (initproc)QgroupInherit_init,
};