1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 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/>.
34 #include "bus-internal.h"
35 #include "bus-message.h"
39 * sd_bus_add_object_manager()
40 * sd_bus_emit_properties_changed()
44 * automatic properties
45 * node hierarchy updates during dispatching
46 * emit_interfaces_added/emit_interfaces_removed
56 static int something_handler(sd_bus *bus, sd_bus_message *m, void *userdata) {
57 struct context *c = userdata;
62 r = sd_bus_message_read(m, "s", &s);
65 n = strjoin("<<<", s, ">>>", NULL);
71 log_info("AlterSomething() called, got %s, returning %s", s, n);
73 r = sd_bus_reply_method_return(bus, m, "s", n);
79 static int exit_handler(sd_bus *bus, sd_bus_message *m, void *userdata) {
80 struct context *c = userdata;
85 log_info("Exit called");
87 r = sd_bus_reply_method_return(bus, m, "");
93 static int get_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, sd_bus_error *error, void *userdata) {
94 struct context *c = userdata;
97 log_info("property get for %s called", property);
99 r = sd_bus_message_append(reply, "s", c->something);
105 static int set_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *value, sd_bus_error *error, void *userdata) {
106 struct context *c = userdata;
111 log_info("property set for %s called", property);
113 r = sd_bus_message_read(value, "s", &s);
125 static int value_handler(sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, sd_bus_error *error, void *userdata) {
126 _cleanup_free_ char *s = NULL;
130 assert_se(asprintf(&s, "object %p, path %s", userdata, path) >= 0);
131 r = sd_bus_message_append(reply, "s", s);
134 assert_se(x = startswith(path, "/value/"));
136 assert_se(PTR_TO_UINT(userdata) == 30);
142 static const sd_bus_vtable vtable[] = {
143 SD_BUS_VTABLE_START(0),
144 SD_BUS_METHOD("AlterSomething", "s", "s", 0, something_handler),
145 SD_BUS_METHOD("Exit", "", "", 0, exit_handler),
146 SD_BUS_WRITABLE_PROPERTY("Something", "s", get_handler, set_handler, 0, 0),
150 static const sd_bus_vtable vtable2[] = {
151 SD_BUS_VTABLE_START(0),
152 SD_BUS_PROPERTY("Value", "s", value_handler, 10, 0),
156 static int enumerator_callback(sd_bus *b, const char *path, char ***nodes, void *userdata) {
158 if (object_path_startswith("/value", path))
159 assert_se(*nodes = strv_new("/value/a", "/value/b", "/value/c", NULL));
164 static void *server(void *p) {
165 struct context *c = p;
172 assert_se(sd_id128_randomize(&id) >= 0);
174 assert_se(sd_bus_new(&bus) >= 0);
175 assert_se(sd_bus_set_fd(bus, c->fds[0], c->fds[0]) >= 0);
176 assert_se(sd_bus_set_server(bus, 1, id) >= 0);
178 assert_se(sd_bus_add_object_vtable(bus, "/foo", "org.freedesktop.systemd.test", vtable, c) >= 0);
179 assert_se(sd_bus_add_object_vtable(bus, "/foo", "org.freedesktop.systemd.test2", vtable, c) >= 0);
180 assert_se(sd_bus_add_fallback_vtable(bus, "/value", "org.freedesktop.systemd.ValueTest", vtable2, NULL, UINT_TO_PTR(20)) >= 0);
181 assert_se(sd_bus_add_node_enumerator(bus, "/value", enumerator_callback, NULL) >= 0);
183 assert_se(sd_bus_start(bus) >= 0);
185 log_error("Entering event loop on server");
190 r = sd_bus_process(bus, NULL);
192 log_error("Failed to process requests: %s", strerror(-r));
197 r = sd_bus_wait(bus, (uint64_t) -1);
199 log_error("Failed to wait: %s", strerror(-r));
215 return INT_TO_PTR(r);
218 static int client(struct context *c) {
219 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
220 _cleanup_bus_unref_ sd_bus *bus = NULL;
221 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
225 assert_se(sd_bus_new(&bus) >= 0);
226 assert_se(sd_bus_set_fd(bus, c->fds[1], c->fds[1]) >= 0);
227 assert_se(sd_bus_start(bus) >= 0);
229 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "s", "hallo");
232 r = sd_bus_message_read(reply, "s", &s);
234 assert_se(streq(s, "<<<hallo>>>"));
236 sd_bus_message_unref(reply);
239 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Doesntexist", &error, &reply, "");
241 assert_se(sd_bus_error_has_name(&error, "org.freedesktop.DBus.Error.UnknownMethod"));
243 sd_bus_error_free(&error);
245 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "AlterSomething", &error, &reply, "as", 1, "hallo");
247 assert_se(sd_bus_error_has_name(&error, "org.freedesktop.DBus.Error.InvalidArgs"));
249 sd_bus_error_free(&error);
251 r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
254 r = sd_bus_message_read(reply, "s", &s);
256 assert_se(streq(s, "<<<hallo>>>"));
258 sd_bus_message_unref(reply);
261 r = sd_bus_set_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, "s", "test");
264 r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Something", &error, &reply, "s");
267 r = sd_bus_message_read(reply, "s", &s);
269 assert_se(streq(s, "test"));
271 sd_bus_message_unref(reply);
274 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
277 r = sd_bus_message_read(reply, "s", &s);
281 sd_bus_message_unref(reply);
284 r = sd_bus_get_property(bus, "org.freedesktop.systemd.test", "/value/xuzz", "org.freedesktop.systemd.ValueTest", "Value", &error, &reply, "s");
287 r = sd_bus_message_read(reply, "s", &s);
289 log_info("read %s", s);
291 sd_bus_message_unref(reply);
294 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
297 r = sd_bus_message_read(reply, "s", &s);
301 sd_bus_message_unref(reply);
304 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
307 r = sd_bus_message_read(reply, "s", &s);
311 sd_bus_message_unref(reply);
314 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Introspectable", "Introspect", &error, &reply, "");
317 r = sd_bus_message_read(reply, "s", &s);
321 sd_bus_message_unref(reply);
324 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "");
327 bus_message_dump(reply);
329 sd_bus_message_unref(reply);
332 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/value/a", "org.freedesktop.DBus.Properties", "GetAll", &error, &reply, "s", "org.freedesktop.systemd.ValueTest2");
334 assert_se(sd_bus_error_has_name(&error, "org.freedesktop.DBus.Error.UnknownInterface"));
335 sd_bus_error_free(&error);
337 r = sd_bus_call_method(bus, "org.freedesktop.systemd.test", "/foo", "org.freedesktop.systemd.test", "Exit", &error, NULL, "");
345 int main(int argc, char *argv[]) {
353 assert_se(socketpair(AF_UNIX, SOCK_STREAM, 0, c.fds) >= 0);
355 r = pthread_create(&s, NULL, server, &c);
361 q = pthread_join(s, &p);
368 if (PTR_TO_INT(p) < 0)
369 return PTR_TO_INT(p);