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 static const char introspection[] =
  26         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
  27         "<node>"
  28         BUS_UNIT_INTERFACE
  29         BUS_PROPERTIES_INTERFACE
  30         " <interface name=\"org.freedesktop.systemd1.Snapshot\">"
  31         "  <method name=\"Remove\"/>"
  32         "  <property name=\"Cleanup\" type=\"b\" access=\"read\"/>"
  33         " </interface>"
  34         BUS_INTROSPECTABLE_INTERFACE
  35         "</node>";
  36
  37 DBusHandlerResult bus_snapshot_message_handler(Unit *u, DBusMessage *message) {
  38         const BusProperty properties[] = {
  39                 BUS_UNIT_PROPERTIES,
  40                 { "org.freedesktop.systemd1.Snapshot", "Cleanup", bus_property_append_bool, "b", &u->snapshot.cleanup },
  41                 { NULL, NULL, NULL, NULL, NULL }
  42         };
  43
  44         DBusMessage *reply = NULL;
  45         DBusError error;
  46
  47         dbus_error_init(&error);
  48
  49         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Snapshot", "Remove")) {
  50
  51                 snapshot_remove(SNAPSHOT(u));
  52
  53                 if (!(reply = dbus_message_new_method_return(message)))
  54                         goto oom;
  55
  56         } else
  57                 return bus_default_message_handler(u->meta.manager, message, introspection, properties);
  58
  59         if (reply) {
  60                 if (!dbus_connection_send(u->meta.manager->api_bus, reply, NULL))
  61                         goto oom;
  62
  63                 dbus_message_unref(reply);
  64         }
  65
  66         return DBUS_HANDLER_RESULT_HANDLED;
  67
  68 oom:
  69         if (reply)
  70                 dbus_message_unref(reply);
  71
  72         dbus_error_free(&error);
  73
  74         return DBUS_HANDLER_RESULT_NEED_MEMORY;
  75 }