Systemd/src/dbus-path.c

85 lines
3.3 KiB
C

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
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-unit.h"
#include "dbus-path.h"
#include "dbus-execute.h"
#define BUS_PATH_INTERFACE \
" <interface name=\"org.freedesktop.systemd1.Path\">\n" \
" <property name=\"Unit\" type=\"s\" access=\"read\"/>\n" \
" <property name=\"Paths\" type=\"a(ss)\" access=\"read\"/>\n" \
" </interface>\n"
#define INTROSPECTION \
DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
"<node>\n" \
BUS_UNIT_INTERFACE \
BUS_PATH_INTERFACE \
BUS_PROPERTIES_INTERFACE \
BUS_PEER_INTERFACE \
BUS_INTROSPECTABLE_INTERFACE \
"</node>\n"
const char bus_path_interface[] = BUS_PATH_INTERFACE;
static int bus_path_append_paths(Manager *m, DBusMessageIter *i, const char *property, void *data) {
Path *p = data;
DBusMessageIter sub, sub2;
PathSpec *k;
assert(m);
assert(i);
assert(property);
assert(p);
if (!dbus_message_iter_open_container(i, DBUS_TYPE_ARRAY, "(ss)", &sub))
return -ENOMEM;
LIST_FOREACH(spec, k, p->specs) {
const char *t = path_type_to_string(k->type);
if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &t) ||
!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &k->path) ||
!dbus_message_iter_close_container(&sub, &sub2))
return -ENOMEM;
}
if (!dbus_message_iter_close_container(i, &sub))
return -ENOMEM;
return 0;
}
DBusHandlerResult bus_path_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
const BusProperty properties[] = {
BUS_UNIT_PROPERTIES,
{ "org.freedesktop.systemd1.Path", "Unit", bus_property_append_string, "s", u->path.unit->meta.id },
{ "org.freedesktop.systemd1.Path", "Paths", bus_path_append_paths, "a(ss)", u },
{ NULL, NULL, NULL, NULL, NULL }
};
return bus_default_message_handler(u->meta.manager, c, message, INTROSPECTION, properties);
}