static int method_echo(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { char *str; const char *intf = sd_bus_message_get_interface(m), *path = sd_bus_message_get_path(m); sd_bus *bus = sd_bus_message_get_bus(m); char response[512] = {0}; int r; /* Read the parameters */ r = sd_bus_message_read(m, "s", &str); if (r < 0) { fprintf(stderr, "Failed to parse parameters: %s\n", strerror(-r)); return r; } r = sd_bus_emit_signal(bus, path, intf, "MethodInvoked", "ss", "Echo method was invoked", path); if (r < 0) { fprintf(stderr, "Failed to emit signal: %s\n", strerror(-r)); return r; } strncat(response, path, 128); strcat(response, " says "); strncat(response, str, 128); /* Reply with the response */ return sd_bus_reply_method_return(m, "s", &response); }
static int generate_signals(sd_bus_message *m, void *userdata, sd_bus_error *ret_error) { uint64_t num_signals, payload_size; uint64_t i = 0; double c_time; int r; struct timeval ts; char *pl = NULL; /* Read the parameters */ r = sd_bus_message_read(m, "tt", &num_signals, &payload_size); if (r < 0) { fprintf(stderr, "Failed to parse parameters: %s\n", strerror(-r)); return r; } printf("SpamSignal: %"PRIu64", %"PRIu64 "\n", num_signals, payload_size); pl = (char*) malloc(payload_size + 1); _rs(pl, payload_size); for (i = 0; i < num_signals; i++) { c_time = time_time(); r = sd_bus_emit_signal(bus, OBJ, INT, "Spam", "dts", c_time, payload_size, pl); if (r < 0) { fprintf(stderr, "Failed to emit signal: %s\n", strerror(-r)); free(pl); return sd_bus_reply_method_return(m, "t", i); } } free(pl); return sd_bus_reply_method_return(m, "t", num_signals); }
static void test_one( const char *path, const char *interface, const char *member, const char *arg0, const char *match, bool good) { _cleanup_close_ int bus_ref = -1; _cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL; _cleanup_bus_message_unref_ sd_bus_message *m = NULL; sd_bus *a, *b; int r; assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0); bus_ref = bus_kernel_create_bus(name, false, &bus_name); if (bus_ref == -ENOENT) exit(EXIT_TEST_SKIP); assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); r = sd_bus_new(&a); assert_se(r >= 0); r = sd_bus_new(&b); assert_se(r >= 0); r = sd_bus_set_address(a, address); assert_se(r >= 0); r = sd_bus_set_address(b, address); assert_se(r >= 0); r = sd_bus_start(a); assert_se(r >= 0); r = sd_bus_start(b); assert_se(r >= 0); log_debug("match"); r = sd_bus_add_match(b, NULL, match, NULL, NULL); assert_se(r >= 0); log_debug("signal"); r = sd_bus_emit_signal(a, path, interface, member, "s", arg0); assert_se(r >= 0); r = sd_bus_process(b, &m); assert_se(r >= 0 && (good == !!m)); sd_bus_unref(a); sd_bus_unref(b); }
static void afb_api_dbus_server_send_event(struct api_dbus *api, const char *event, struct json_object *object) { int rc; rc = sd_bus_emit_signal(api->sdbus, api->path, api->name, "event", "ss", event, json_object_to_json_string_ext(object, JSON_C_TO_STRING_PLAIN)); if (rc < 0) ERROR("error while emiting event %s", event); json_object_put(object); }
int main(int argc, char *argv[]) { _cleanup_bus_unref_ sd_bus *bus = NULL; int r; if (argc != 2) { log_error("Incorrect number of arguments."); return EXIT_FAILURE; } log_set_target(LOG_TARGET_AUTO); log_parse_environment(); log_open(); /* We send this event to the private D-Bus socket and then the * system instance will forward this to the system bus. We do * this to avoid an activation loop when we start dbus when we * are called when the dbus service is shut down. */ r = bus_open_system_systemd(&bus); if (r < 0) { /* If we couldn't connect we assume this was triggered * while systemd got restarted/transitioned from * initrd to the system, so let's ignore this */ log_debug("Failed to get D-Bus connection: %s", strerror(-r)); return EXIT_FAILURE; } r = sd_bus_emit_signal(bus, "/org/freedesktop/systemd1/agent", "org.freedesktop.systemd1.Agent", "Released", "s", argv[1]); if (r < 0) { log_debug("Failed to send signal message on private connection: %s", strerror(-r)); return EXIT_FAILURE; } sd_bus_flush(bus); return EXIT_SUCCESS; }
int main(int argc, char *argv[]) { _cleanup_close_ int bus_ref = -1; _cleanup_free_ char *name = NULL, *bus_name = NULL, *address = NULL, *bname = NULL; _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; const char *ua = NULL, *ub = NULL, *the_string = NULL; sd_bus *a, *b; int r, pipe_fds[2]; const char *nn; log_set_max_level(LOG_DEBUG); assert_se(asprintf(&name, "deine-mutter-%u", (unsigned) getpid()) >= 0); bus_ref = bus_kernel_create_bus(name, false, &bus_name); if (bus_ref == -ENOENT) return EXIT_TEST_SKIP; assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); r = sd_bus_new(&a); assert_se(r >= 0); r = sd_bus_new(&b); assert_se(r >= 0); r = sd_bus_set_description(a, "a"); assert_se(r >= 0); r = sd_bus_set_address(a, address); assert_se(r >= 0); r = sd_bus_set_address(b, address); assert_se(r >= 0); assert_se(sd_bus_negotiate_timestamp(a, 1) >= 0); assert_se(sd_bus_negotiate_creds(a, true, _SD_BUS_CREDS_ALL) >= 0); assert_se(sd_bus_negotiate_timestamp(b, 0) >= 0); assert_se(sd_bus_negotiate_creds(b, true, 0) >= 0); r = sd_bus_start(a); assert_se(r >= 0); r = sd_bus_start(b); assert_se(r >= 0); assert_se(sd_bus_negotiate_timestamp(b, 1) >= 0); assert_se(sd_bus_negotiate_creds(b, true, _SD_BUS_CREDS_ALL) >= 0); r = sd_bus_get_unique_name(a, &ua); assert_se(r >= 0); printf("unique a: %s\n", ua); r = sd_bus_get_description(a, &nn); assert_se(r >= 0); printf("name of a: %s\n", nn); r = sd_bus_get_unique_name(b, &ub); assert_se(r >= 0); printf("unique b: %s\n", ub); r = sd_bus_get_description(b, &nn); assert_se(r >= 0); printf("name of b: %s\n", nn); assert_se(bus_kernel_get_bus_name(b, &bname) >= 0); assert_se(endswith(bname, name)); r = sd_bus_call_method(a, "this.doesnt.exist", "/foo", "meh.mah", "muh", &error, NULL, "s", "yayayay"); assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_SERVICE_UNKNOWN)); assert_se(r == -EHOSTUNREACH); r = sd_bus_add_match(b, NULL, "interface='waldo.com',member='Piep'", NULL, NULL); assert_se(r >= 0); r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name"); assert_se(r >= 0); r = sd_bus_try_close(b); assert_se(r == -EBUSY); r = sd_bus_process_priority(b, -10, &m); assert_se(r == 0); r = sd_bus_process(b, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER); assert_se(sd_bus_message_rewind(m, true) >= 0); r = sd_bus_message_read(m, "s", &the_string); assert_se(r >= 0); assert_se(streq(the_string, "I am a string")); sd_bus_message_unref(m); m = NULL; r = sd_bus_request_name(a, "net.x0pointer.foobar", 0); assert_se(r >= 0); r = sd_bus_message_new_method_call(b, &m, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod"); assert_se(r >= 0); assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0); assert_se(write(pipe_fds[1], "x", 1) == 1); pipe_fds[1] = safe_close(pipe_fds[1]); r = sd_bus_message_append(m, "h", pipe_fds[0]); assert_se(r >= 0); pipe_fds[0] = safe_close(pipe_fds[0]); r = sd_bus_send(b, m, NULL); assert_se(r >= 0); for (;;) { sd_bus_message_unref(m); m = NULL; r = sd_bus_process(a, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m, stdout, BUS_MESSAGE_DUMP_WITH_HEADER); assert_se(sd_bus_message_rewind(m, true) >= 0); if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) { int fd; char x; r = sd_bus_message_read(m, "h", &fd); assert_se(r >= 0); assert_se(read(fd, &x, 1) == 1); assert_se(x == 'x'); break; } } r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r >= 0); r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r == -ESRCH); r = sd_bus_try_close(a); assert_se(r >= 0); sd_bus_unref(a); sd_bus_unref(b); return 0; }
int main(int argc, char *argv[]) { _cleanup_close_ int bus_ref = -1; _cleanup_free_ char *bus_name = NULL, *address = NULL; _cleanup_bus_message_unref_ sd_bus_message *m = NULL; const char *ua = NULL, *ub = NULL, *the_string = NULL; sd_bus *a, *b; int r, pipe_fds[2]; log_set_max_level(LOG_DEBUG); bus_ref = bus_kernel_create("deine-mutter", &bus_name); if (bus_ref == -ENOENT) return EXIT_TEST_SKIP; assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); r = sd_bus_new(&a); assert_se(r >= 0); r = sd_bus_new(&b); assert_se(r >= 0); r = sd_bus_set_address(a, address); assert_se(r >= 0); r = sd_bus_set_address(b, address); assert_se(r >= 0); assert_se(sd_bus_negotiate_attach_comm(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_exe(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_cmdline(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_cgroup(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_caps(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_selinux_context(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_audit(a, 1) >= 0); assert_se(sd_bus_negotiate_attach_comm(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_exe(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_cmdline(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_cgroup(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_caps(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_selinux_context(b, 1) >= 0); assert_se(sd_bus_negotiate_attach_audit(b, 1) >= 0); r = sd_bus_start(a); assert_se(r >= 0); r = sd_bus_start(b); assert_se(r >= 0); r = sd_bus_get_unique_name(a, &ua); assert_se(r >= 0); printf("unique a: %s\n", ua); r = sd_bus_get_unique_name(b, &ub); assert_se(r >= 0); printf("unique b: %s\n", ub); r = sd_bus_add_match(b, "interface='waldo.com',member='Piep'", NULL, NULL); assert_se(r >= 0); r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name"); assert_se(r >= 0); r = sd_bus_process(b, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m); assert_se(sd_bus_message_rewind(m, true) >= 0); r = sd_bus_message_read(m, "s", &the_string); assert_se(r >= 0); assert_se(streq(the_string, "I am a string")); sd_bus_message_unref(m); m = NULL; r = sd_bus_request_name(a, "net.x0pointer.foobar", 0); assert_se(r >= 0); r = sd_bus_message_new_method_call(b, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod", &m); assert_se(r >= 0); assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0); assert_se(write(pipe_fds[1], "x", 1) == 1); close_nointr_nofail(pipe_fds[1]); pipe_fds[1] = -1; r = sd_bus_message_append(m, "h", pipe_fds[0]); assert_se(r >= 0); close_nointr_nofail(pipe_fds[0]); pipe_fds[0] = -1; r = sd_bus_send(b, m, NULL); assert_se(r >= 0); for (;;) { sd_bus_message_unref(m); m = NULL; r = sd_bus_process(a, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m); assert_se(sd_bus_message_rewind(m, true) >= 0); if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) { int fd; char x; r = sd_bus_message_read(m, "h", &fd); assert_se(r >= 0); assert_se(read(fd, &x, 1) == 1); assert_se(x == 'x'); break; } } r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r >= 0); r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r == -ESRCH); sd_bus_unref(a); sd_bus_unref(b); return 0; }
int main(int argc, char *argv[]) { _cleanup_close_ int bus_ref = -1; _cleanup_free_ char *bus_name = NULL, *address = NULL; _cleanup_bus_message_unref_ sd_bus_message *m = NULL; const char *ua = NULL, *ub = NULL, *the_string = NULL; sd_bus *a, *b; int r, pipe_fds[2]; bus_ref = bus_kernel_create("deine-mutter", &bus_name); if (bus_ref == -ENOENT) return EXIT_TEST_SKIP; assert_se(bus_ref >= 0); address = strappend("kernel:path=", bus_name); assert_se(address); r = sd_bus_new(&a); assert_se(r >= 0); r = sd_bus_new(&b); assert_se(r >= 0); r = sd_bus_set_address(a, address); assert_se(r >= 0); r = sd_bus_set_address(b, address); assert_se(r >= 0); r = sd_bus_start(a); assert_se(r >= 0); r = sd_bus_start(b); assert_se(r >= 0); r = sd_bus_get_unique_name(a, &ua); assert_se(r >= 0); printf("unique a: %s\n", ua); r = sd_bus_get_unique_name(b, &ub); assert_se(r >= 0); printf("unique b: %s\n", ub); { //FIXME: struct kdbus_cmd_match cmd_match; cmd_match.size = sizeof(cmd_match); cmd_match.src_id = KDBUS_MATCH_SRC_ID_ANY; r = ioctl(sd_bus_get_fd(a), KDBUS_CMD_MATCH_ADD, &cmd_match); assert_se(r >= 0); r = ioctl(sd_bus_get_fd(b), KDBUS_CMD_MATCH_ADD, &cmd_match); assert_se(r >= 0); } r = sd_bus_emit_signal(a, "/foo/bar/waldo", "waldo.com", "Piep", "sss", "I am a string", "/this/is/a/path", "and.this.a.domain.name"); assert_se(r >= 0); r = sd_bus_process(b, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m); assert_se(sd_bus_message_rewind(m, true) >= 0); r = sd_bus_message_read(m, "s", &the_string); assert_se(r >= 0); assert_se(streq(the_string, "I am a string")); sd_bus_message_unref(m); m = NULL; r = sd_bus_request_name(a, "net.x0pointer.foobar", 0); assert_se(r >= 0); r = sd_bus_message_new_method_call(b, "net.x0pointer.foobar", "/a/path", "an.inter.face", "AMethod", &m); assert_se(r >= 0); assert_se(pipe2(pipe_fds, O_CLOEXEC) >= 0); assert_se(write(pipe_fds[1], "x", 1) == 1); close_nointr_nofail(pipe_fds[1]); pipe_fds[1] = -1; r = sd_bus_message_append(m, "h", pipe_fds[0]); assert_se(r >= 0); close_nointr_nofail(pipe_fds[0]); pipe_fds[0] = -1; r = sd_bus_send(b, m, NULL); assert_se(r >= 0); for (;;) { sd_bus_message_unref(m); m = NULL; r = sd_bus_process(a, &m); assert_se(r > 0); assert_se(m); bus_message_dump(m); assert_se(sd_bus_message_rewind(m, true) >= 0); if (sd_bus_message_is_method_call(m, "an.inter.face", "AMethod")) { int fd; char x; r = sd_bus_message_read(m, "h", &fd); assert_se(r >= 0); assert_se(read(fd, &x, 1) == 1); assert_se(x == 'x'); break; } } r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r >= 0); r = sd_bus_release_name(a, "net.x0pointer.foobar"); assert_se(r == -ESRCH); sd_bus_unref(a); sd_bus_unref(b); return 0; }