+++ /dev/null
-/*-*- Mode: C; c-basic-offset: 8 -*-*/
-
-/***
- This file is part of systemd.
-
- Copyright 2010 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-
-#include "dbus.h"
-#include "log.h"
-#include "dbus-job.h"
-
-static const char introspection[] =
- DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
- "<node>"
- " <interface name=\"org.freedesktop.systemd1.Job\">"
- " <method name=\"Cancel\"/>"
- " <signal name=\"Changed\"/>"
- " <property name=\"Id\" type=\"u\" access=\"read\"/>"
- " <property name=\"Unit\" type=\"(so)\" access=\"read\"/>"
- " <property name=\"JobType\" type=\"s\" access=\"read\"/>"
- " <property name=\"State\" type=\"s\" access=\"read\"/>"
- " </interface>"
- BUS_PROPERTIES_INTERFACE
- BUS_INTROSPECTABLE_INTERFACE
- "</node>";
-
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_state, job_state, JobState);
-static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_job_append_type, job_type, JobType);
-
-static int bus_job_append_unit(Manager *m, DBusMessageIter *i, const char *property, void *data) {
- Job *j = data;
- DBusMessageIter sub;
- char *p;
-
- assert(m);
- assert(i);
- assert(property);
- assert(j);
-
- if (!dbus_message_iter_open_container(i, DBUS_TYPE_STRUCT, NULL, &sub))
- return -ENOMEM;
-
- if (!(p = unit_dbus_path(j->unit)))
- return -ENOMEM;
-
- if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &j->unit->meta.id) ||
- !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) {
- free(p);
- return -ENOMEM;
- }
-
- free(p);
-
- if (!dbus_message_iter_close_container(i, &sub))
- return -ENOMEM;
-
- return 0;
-}
-
-static DBusHandlerResult bus_job_message_dispatch(Job *j, DBusMessage *message) {
- const BusProperty properties[] = {
- { "org.freedesktop.systemd1.Job", "Id", bus_property_append_uint32, "u", &j->id },
- { "org.freedesktop.systemd1.Job", "State", bus_job_append_state, "s", &j->state },
- { "org.freedesktop.systemd1.Job", "JobType", bus_job_append_type, "s", &j->type },
- { "org.freedesktop.systemd1.Job", "Unit", bus_job_append_unit, "(so)", j },
- { NULL, NULL, NULL, NULL, NULL }
- };
-
- DBusMessage *reply = NULL;
- Manager *m = j->manager;
-
- if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Job", "Cancel")) {
- if (!(reply = dbus_message_new_method_return(message)))
- goto oom;
-
- job_free(j);
-
- } else
- return bus_default_message_handler(j->manager, message, introspection, properties);
-
- if (reply) {
- if (!dbus_connection_send(m->api_bus, reply, NULL))
- goto oom;
-
- dbus_message_unref(reply);
- }
-
- return DBUS_HANDLER_RESULT_HANDLED;
-
-oom:
- if (reply)
- dbus_message_unref(reply);
-
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-}
-
-static DBusHandlerResult bus_job_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
- Manager *m = data;
- Job *j;
- int r;
-
- assert(connection);
- assert(message);
- assert(m);
-
- log_debug("Got D-Bus request: %s.%s() on %s",
- dbus_message_get_interface(message),
- dbus_message_get_member(message),
- dbus_message_get_path(message));
-
- if ((r = manager_get_job_from_dbus_path(m, dbus_message_get_path(message), &j)) < 0) {
-
- if (r == -ENOMEM)
- return DBUS_HANDLER_RESULT_NEED_MEMORY;
-
- if (r == -ENOENT)
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
-
- return bus_send_error_reply(m, message, NULL, r);
- }
-
- return bus_job_message_dispatch(j, message);
-}
-
-const DBusObjectPathVTable bus_job_vtable = {
- .message_function = bus_job_message_handler
-};
-
-void bus_job_send_change_signal(Job *j) {
- char *p = NULL;
- DBusMessage *m = NULL;
-
- assert(j);
- assert(j->in_dbus_queue);
-
- LIST_REMOVE(Job, dbus_queue, j->manager->dbus_job_queue, j);
- j->in_dbus_queue = false;
-
- if (set_isempty(j->manager->subscribed)) {
- j->sent_dbus_new_signal = true;
- return;
- }
-
- if (!(p = job_dbus_path(j)))
- goto oom;
-
- if (j->sent_dbus_new_signal) {
- /* Send a change signal */
-
- if (!(m = dbus_message_new_signal(p, "org.freedesktop.systemd1.Job", "Changed")))
- goto oom;
- } else {
- /* Send a new signal */
-
- if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobNew")))
- goto oom;
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &j->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_INVALID))
- goto oom;
- }
-
- if (!dbus_connection_send(j->manager->api_bus, m, NULL))
- goto oom;
-
- free(p);
- dbus_message_unref(m);
-
- j->sent_dbus_new_signal = true;
-
- return;
-
-oom:
- free(p);
-
- if (m)
- dbus_message_unref(m);
-
- log_error("Failed to allocate job change signal.");
-}
-
-void bus_job_send_removed_signal(Job *j) {
- char *p = NULL;
- DBusMessage *m = NULL;
-
- assert(j);
-
- if (set_isempty(j->manager->subscribed) || !j->sent_dbus_new_signal)
- return;
-
- if (!(p = job_dbus_path(j)))
- goto oom;
-
- if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "JobRemoved")))
- goto oom;
-
- if (!dbus_message_append_args(m,
- DBUS_TYPE_UINT32, &j->id,
- DBUS_TYPE_OBJECT_PATH, &p,
- DBUS_TYPE_INVALID))
- goto oom;
-
- if (!dbus_connection_send(j->manager->api_bus, m, NULL))
- goto oom;
-
- free(p);
- dbus_message_unref(m);
-
- return;
-
-oom:
- free(p);
-
- if (m)
- dbus_message_unref(m);
-
- log_error("Failed to allocate job remove signal.");
-}
~ianmdlvl / elogind.git / blobdiff