1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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 Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
24 #include "selinux-access.h"
27 #include "dbus-client-track.h"
29 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, job_type, JobType);
30 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_state, job_state, JobState);
32 static int property_get_unit(
35 const char *interface,
37 sd_bus_message *reply,
39 sd_bus_error *error) {
41 _cleanup_free_ char *p = NULL;
48 p = unit_dbus_path(j->unit);
52 return sd_bus_message_append(reply, "(so)", j->unit->id, p);
55 static int method_cancel(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
63 r = selinux_unit_access_check(j->unit, bus, message, "stop", error);
67 job_finish_and_invalidate(j, JOB_CANCELED, true);
69 return sd_bus_reply_method_return(message, NULL);
72 const sd_bus_vtable bus_job_vtable[] = {
73 SD_BUS_VTABLE_START(0),
74 SD_BUS_METHOD("Cancel", NULL, NULL, method_cancel, 0),
75 SD_BUS_PROPERTY("Id", "u", NULL, offsetof(Job, id), 0),
76 SD_BUS_PROPERTY("Unit", "(so)", property_get_unit, 0, 0),
77 SD_BUS_PROPERTY("JobType", "s", property_get_type, offsetof(Job, type), 0),
78 SD_BUS_PROPERTY("State", "s", property_get_state, offsetof(Job, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
82 static int foreach_client(Job *j, int (*send_message)(sd_bus *bus, const char *name, Job *j)) {
83 BusTrackedClient *one_destination = NULL;
92 n = set_size(j->manager->subscribed);
93 m = set_size(j->subscribed);
99 one_destination = set_first(j->manager->subscribed);
100 else if (n == 0 && m == 1)
101 one_destination = set_first(j->subscribed);
103 one_destination = NULL;
106 return send_message(one_destination->bus, isempty(one_destination->name) ? NULL : one_destination->name, j);
110 /* Send to everybody */
111 SET_FOREACH(b, j->manager->private_buses, i) {
112 r = send_message(b, NULL, j);
117 if (j->manager->api_bus) {
118 r = send_message(j->manager->api_bus, NULL, j);
126 static int send_new_signal(sd_bus *bus, const char *destination, Job *j) {
127 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
128 _cleanup_free_ char *p = NULL;
134 p = job_dbus_path(j);
138 r = sd_bus_message_new_signal(
140 "/org/freedesktop/systemd1",
141 "org.freedesktop.systemd1.Manager",
147 r = sd_bus_message_append(m, "uos", j->id, p, j->unit->id);
151 return sd_bus_send_to(bus, m, destination, NULL);
154 static int send_changed_signal(sd_bus *bus, const char *destination, Job *j) {
155 _cleanup_free_ char *p = NULL;
160 p = job_dbus_path(j);
164 return sd_bus_emit_properties_changed(bus, p, "org.freedesktop.systemd1.Job", "State", NULL);
167 void bus_job_send_change_signal(Job *j) {
172 if (j->in_dbus_queue) {
173 LIST_REMOVE(dbus_queue, j->manager->dbus_job_queue, j);
174 j->in_dbus_queue = false;
177 r = foreach_client(j, j->sent_dbus_new_signal ? send_changed_signal : send_new_signal);
179 log_debug("Failed to send job change signal for %u: %s", j->id, strerror(-r));
181 j->sent_dbus_new_signal = true;
184 static int send_removed_signal(sd_bus *bus, const char *destination, Job *j) {
185 _cleanup_bus_message_unref_ sd_bus_message *m = NULL;
186 _cleanup_free_ char *p = NULL;
192 p = job_dbus_path(j);
197 r = sd_bus_message_new_signal(
199 "/org/freedesktop/systemd1",
200 "org.freedesktop.systemd1.Manager",
206 r = sd_bus_message_append(m, "uoss", j->id, p, j->unit->id, job_result_to_string(j->result));
210 return sd_bus_send_to(bus, m, destination, NULL);
213 void bus_job_send_removed_signal(Job *j) {
218 if (!j->sent_dbus_new_signal)
219 bus_job_send_change_signal(j);
221 r = foreach_client(j, send_removed_signal);
223 log_debug("Failed to send job remove signal for %u: %s", j->id, strerror(-r));