chiark / gitweb /
systemctl: fix parsing of cgroup contents
[elogind.git] / src / dbus-snapshot.c
1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
2
3 /***
4   This file is part of systemd.
5
6   Copyright 2010 Lennart Poettering
7
8   systemd is free software; you can redistribute it and/or modify it
9   under the terms of the GNU General Public License as published by
10   the Free Software Foundation; either version 2 of the License, or
11   (at your option) any later version.
12
13   systemd is distributed in the hope that it will be useful, but
14   WITHOUT ANY WARRANTY; without even the implied warranty of
15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16   General Public License for more details.
17
18   You should have received a copy of the GNU General Public License
19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
20 ***/
21
22 #include "dbus-unit.h"
23 #include "dbus-snapshot.h"
24
25 #define BUS_SNAPSHOT_INTERFACE                                          \
26         " <interface name=\"org.freedesktop.systemd1.Snapshot\">\n"     \
27         "  <method name=\"Remove\"/>\n"                                 \
28         "  <property name=\"Cleanup\" type=\"b\" access=\"read\"/>\n"   \
29         " </interface>\n"
30
31 #define INTROSPECTION                                                   \
32         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
33         "<node>\n"                                                      \
34         BUS_UNIT_INTERFACE                                              \
35         BUS_SNAPSHOT_INTERFACE                                          \
36         BUS_PROPERTIES_INTERFACE                                        \
37         BUS_INTROSPECTABLE_INTERFACE                                    \
38         "</node>\n"
39
40 const char bus_snapshot_interface[] = BUS_SNAPSHOT_INTERFACE;
41
42 DBusHandlerResult bus_snapshot_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
43         const BusProperty properties[] = {
44                 BUS_UNIT_PROPERTIES,
45                 { "org.freedesktop.systemd1.Snapshot", "Cleanup", bus_property_append_bool, "b", &u->snapshot.cleanup },
46                 { NULL, NULL, NULL, NULL, NULL }
47         };
48
49         DBusMessage *reply = NULL;
50         DBusError error;
51
52         dbus_error_init(&error);
53
54         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Snapshot", "Remove")) {
55
56                 snapshot_remove(SNAPSHOT(u));
57
58                 if (!(reply = dbus_message_new_method_return(message)))
59                         goto oom;
60
61         } else
62                 return bus_default_message_handler(u->meta.manager, c, message, INTROSPECTION, properties);
63
64         if (reply) {
65                 if (!dbus_connection_send(c, reply, NULL))
66                         goto oom;
67
68                 dbus_message_unref(reply);
69         }
70
71         return DBUS_HANDLER_RESULT_HANDLED;
72
73 oom:
74         if (reply)
75                 dbus_message_unref(reply);
76
77         dbus_error_free(&error);
78
79         return DBUS_HANDLER_RESULT_NEED_MEMORY;
80 }