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/>.
28 static const char introspection[] =
29 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
31 " <interface name=\"org.freedesktop.systemd1.Job\">"
32 " <method name=\"Cancel\"/>"
33 " <signal name=\"Changed\"/>"
34 " <property name=\"Id\" type=\"u\" access=\"read\"/>"
35 " <property name=\"Unit\" type=\"(so)\" access=\"read\"/>"
36 " <property name=\"JobType\" type=\"s\" access=\"read\"/>"
37 " <property name=\"State\" type=\"s\" access=\"read\"/>"
39 BUS_PROPERTIES_INTERFACE
40 BUS_INTROSPECTABLE_INTERFACE
43 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_state, job_state, JobState);
44 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_type, job_type, JobType);
46 static int bus_job_append_unit(Manager *m, DBusMessageIter *i, const char *property, void *data) {
56 if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
59 if (!(p = unit_dbus_path(j->unit)))
62 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &j->unit->meta.id) ||
63 !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
70 if (!dbus_message_iter_close_container(i, &sub))
76 static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusMessage *message) {
77 const BusProperty properties[] = {
78 { "org.freedesktop.systemd1.Job", "Id", bus_property_append_uint32, "u", &j->id },
79 { "org.freedesktop.systemd1.Job", "State", bus_job_append_state, "s", &j->state },
80 { "org.freedesktop.systemd1.Job", "JobType", bus_job_append_type, "s", &j->type },
81 { "org.freedesktop.systemd1.Job", "Unit", bus_job_append_unit, "(so)", j },
82 { NULL, NULL, NULL, NULL, NULL }
85 DBusMessage *reply = NULL;
86 Manager *m = j->manager;
88 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Job", "Cancel")) {
89 if (!(reply = dbus_message_new_method_return(message)))
95 return bus_default_message_handler(j->manager, message, introspection, properties);
98 if (!dbus_connection_send(m->api_bus, reply, NULL))
101 dbus_message_unref(reply);
104 return DBUS_HANDLER_RESULT_HANDLED;
108 dbus_message_unref(reply);
110 return DBUS_HANDLER_RESULT_NEED_MEMORY;
113 static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
122 log_debug("Got D-Bus request: %s.%s() on %s",
123 dbus_message_get_interface(message),
124 dbus_message_get_member(message),
125 dbus_message_get_path(message));
127 if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) {
130 return DBUS_HANDLER_RESULT_NEED_MEMORY;
133 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
135 return bus_send_error_reply(m, message, NULL, r);
138 return bus_job_message_dispatch(j, message);
141 const DBusObjectPathVTable bus_job_vtable = {
142 .message_function = bus_job_message_handler
145 void bus_job_send_change_signal(Job *j) {
147 DBusMessage *m = NULL;
150 assert(j->in_dbus_queue);
152 LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
153 j->in_dbus_queue = false;
155 if (set_isempty(j->manager->subscribed)) {
156 j->sent_dbus_new_signal = true;
160 if (!(p = job_dbus_path(j)))
163 if (j->sent_dbus_new_signal) {
164 /* Send a change signal */
166 if (!(m = dbus_message_new_signal(p, "org.freedesktop.systemd1.Job", "Changed")))
169 /* Send a new signal */
171 if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobNew")))
174 if (!dbus_message_append_args(m,
175 DBUS_TYPE_UINT32, &j->id,
176 DBUS_TYPE_OBJECT_PATH, &p,
181 if (!dbus_connection_send(j->manager->api_bus, m, NULL))
185 dbus_message_unref(m);
187 j->sent_dbus_new_signal = true;
195 dbus_message_unref(m);
197 log_error("Failed to allocate job change signal.");
200 void bus_job_send_removed_signal(Job *j) {
202 DBusMessage *m = NULL;
206 if (set_isempty(j->manager->subscribed) || !j->sent_dbus_new_signal)
209 if (!(p = job_dbus_path(j)))
212 if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobRemoved")))
215 if (!dbus_message_append_args(m,
216 DBUS_TYPE_UINT32, &j->id,
217 DBUS_TYPE_OBJECT_PATH, &p,
221 if (!dbus_connection_send(j->manager->api_bus, m, NULL))
225 dbus_message_unref(m);
233 dbus_message_unref(m);
235 log_error("Failed to allocate job remove signal.");