1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
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.
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.
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/>.
27 static const char introspection[] =
28 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
30 " <interface name=\"org.freedesktop.systemd1.Job\">"
31 " <method name=\"Cancel\"/>"
32 " <signal name=\"Changed\"/>"
33 " <property name=\"Id\" type=\"u\" access=\"read\"/>"
34 " <property name=\"Unit\" type=\"(so)\" access=\"read\"/>"
35 " <property name=\"JobType\" type=\"s\" access=\"read\"/>"
36 " <property name=\"State\" type=\"s\" access=\"read\"/>"
38 BUS_PROPERTIES_INTERFACE
39 BUS_INTROSPECTABLE_INTERFACE
42 static int bus_job_append_state(Manager *m, DBusMessageIter *i, const char *property, void *data) {
51 state = job_state_to_string(j->state);
53 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &state))
59 static int bus_job_append_type(Manager *m, DBusMessageIter *i, const char *property, void *data) {
68 type = job_type_to_string(j->type);
70 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &type))
76 static int bus_job_append_unit(Manager *m, DBusMessageIter *i, const char *property, void *data) {
87 if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
90 if (!(p = unit_dbus_path(j->unit)))
93 id = unit_id(j->unit);
95 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &id) ||
96 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
103 if (!dbus_message_iter_close_container(i, &sub))
109 static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusMessage *message) {
110 const BusProperty properties[] = {
111 { "org.freedesktop.systemd1.Job", "Id", bus_property_append_uint32, "u", &j->id },
112 { "org.freedesktop.systemd1.Job", "State", bus_job_append_state, "s", j },
113 { "org.freedesktop.systemd1.Job", "JobType", bus_job_append_type, "s", j },
114 { "org.freedesktop.systemd1.Job", "Unit", bus_job_append_unit, "(so)", j },
115 { NULL, NULL, NULL, NULL, NULL }
118 DBusMessage *reply = NULL;
119 Manager *m = j->manager;
121 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Job", "Cancel")) {
122 if (!(reply = dbus_message_new_method_return(message)))
128 return bus_default_message_handler(j->manager, message, introspection, properties);
131 if (!dbus_connection_send(m->api_bus, reply, NULL))
134 dbus_message_unref(reply);
137 return DBUS_HANDLER_RESULT_HANDLED;
141 dbus_message_unref(reply);
143 return DBUS_HANDLER_RESULT_NEED_MEMORY;
146 static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
155 log_debug("Got D-Bus request: %s.%s() on %s",
156 dbus_message_get_interface(message),
157 dbus_message_get_member(message),
158 dbus_message_get_path(message));
160 if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) {
163 return DBUS_HANDLER_RESULT_NEED_MEMORY;
166 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
168 return bus_send_error_reply(m, message, NULL, r);
171 return bus_job_message_dispatch(j, message);
174 const DBusObjectPathVTable bus_job_vtable = {
175 .message_function = bus_job_message_handler
178 void bus_job_send_change_signal(Job *j) {
180 DBusMessage *m = NULL;
183 assert(j->in_dbus_queue);
185 LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
186 j->in_dbus_queue = false;
188 if (set_isempty(j->manager->subscribed))
191 if (!(p = job_dbus_path(j)))
194 if (j->sent_dbus_new_signal) {
195 /* Send a change signal */
197 if (!(m = dbus_message_new_signal(p, "org.freedesktop.systemd1.Job", "Changed")))
200 /* Send a new signal */
202 if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1", "JobNew")))
205 if (!dbus_message_append_args(m,
206 DBUS_TYPE_UINT32, &j->id,
207 DBUS_TYPE_OBJECT_PATH, &p,
212 if (!dbus_connection_send(j->manager->api_bus, m, NULL))
216 dbus_message_unref(m);
218 j->sent_dbus_new_signal = true;
226 dbus_message_unref(m);
228 log_error("Failed to allocate job change signal.");
231 void bus_job_send_removed_signal(Job *j) {
233 DBusMessage *m = NULL;
237 if (set_isempty(j->manager->subscribed) || !j->sent_dbus_new_signal)
240 if (!(p = job_dbus_path(j)))
243 if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1", "JobRemoved")))
246 if (!dbus_message_append_args(m,
247 DBUS_TYPE_UINT32, &j->id,
248 DBUS_TYPE_OBJECT_PATH, &p,
252 if (!dbus_connection_send(j->manager->api_bus, m, NULL))
256 dbus_message_unref(m);
264 dbus_message_unref(m);
266 log_error("Failed to allocate job remove signal.");