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authorLennart Poettering <lennart@poettering.net>2016-08-22 16:13:19 +0200
committerLennart Poettering <lennart@poettering.net>2016-08-22 17:31:36 +0200
commit70cb8b7b16d2f1c63b21d90a493d895018fe8f67 (patch)
treed1eee72c45d784d35cdb96ed06c81443177a82a7 /src/libsystemd/sd-bus
parent232f367766b35fa248476d0ded49781a06a80ae1 (diff)
sd-bus: add a small test case for sd_bus_track
This tests in particular that disconnecting results in the tracking object's handlers to be called.
Diffstat (limited to 'src/libsystemd/sd-bus')
-rw-r--r--src/libsystemd/sd-bus/test-bus-track.c113
1 files changed, 113 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/test-bus-track.c b/src/libsystemd/sd-bus/test-bus-track.c
new file mode 100644
index 0000000000..4beb61f05a
--- /dev/null
+++ b/src/libsystemd/sd-bus/test-bus-track.c
@@ -0,0 +1,113 @@
+/***
+ This file is part of systemd.
+
+ Copyright 2016 Lennart Poettering
+
+ systemd is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as published by
+ the Free Software Foundation; either version 2.1 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <sd-bus.h>
+
+#include "macro.h"
+
+static bool track_cb_called_x = false;
+static bool track_cb_called_y = false;
+
+static int track_cb_x(sd_bus_track *t, void *userdata) {
+
+ log_error("TRACK CB X");
+
+ assert_se(!track_cb_called_x);
+ track_cb_called_x = true;
+
+ /* This means b's name disappeared. Let's now disconnect, to make sure the track handling on disconnect works
+ * as it should. */
+
+ assert_se(shutdown(sd_bus_get_fd(sd_bus_track_get_bus(t)), SHUT_RDWR) >= 0);
+ return 1;
+}
+
+static int track_cb_y(sd_bus_track *t, void *userdata) {
+ int r;
+
+ log_error("TRACK CB Y");
+
+ assert_se(!track_cb_called_y);
+ track_cb_called_y = true;
+
+ /* We got disconnected, let's close everything */
+
+ r = sd_event_exit(sd_bus_get_event(sd_bus_track_get_bus(t)), EXIT_SUCCESS);
+ assert_se(r >= 0);
+
+ return 0;
+}
+
+int main(int argc, char *argv[]) {
+ _cleanup_(sd_event_unrefp) sd_event *event = NULL;
+ _cleanup_(sd_bus_track_unrefp) sd_bus_track *x = NULL, *y = NULL;
+ _cleanup_(sd_bus_unrefp) sd_bus *a = NULL, *b = NULL;
+ const char *unique;
+ int r;
+
+ r = sd_event_default(&event);
+ assert_se(r >= 0);
+
+ r = sd_bus_open_system(&a);
+ if (IN_SET(r, -ECONNREFUSED, -ENOENT)) {
+ log_info("Failed to connect to bus, skipping tests.");
+ return EXIT_TEST_SKIP;
+ }
+ assert_se(r >= 0);
+
+ r = sd_bus_attach_event(a, event, SD_EVENT_PRIORITY_NORMAL);
+ assert_se(r >= 0);
+
+ r = sd_bus_open_system(&b);
+ assert_se(r >= 0);
+
+ r = sd_bus_attach_event(b, event, SD_EVENT_PRIORITY_NORMAL);
+ assert_se(r >= 0);
+
+ /* Watch b's name from a */
+ r = sd_bus_track_new(a, &x, track_cb_x, NULL);
+ assert_se(r >= 0);
+
+ r = sd_bus_get_unique_name(b, &unique);
+ assert_se(r >= 0);
+
+ r = sd_bus_track_add_name(x, unique);
+ assert_se(r >= 0);
+
+ /* Watch's a's own name from a */
+ r = sd_bus_track_new(a, &y, track_cb_y, NULL);
+ assert_se(r >= 0);
+
+ r = sd_bus_get_unique_name(a, &unique);
+ assert_se(r >= 0);
+
+ r = sd_bus_track_add_name(y, unique);
+ assert_se(r >= 0);
+
+ /* Now make b's name disappear */
+ sd_bus_close(b);
+
+ r = sd_event_loop(event);
+ assert_se(r >= 0);
+
+ assert_se(track_cb_called_x);
+ assert_se(track_cb_called_y);
+
+ return 0;
+}