sd-varlink: add a bit of debug logging indicating when exit-on-idle triggers

(cherry picked from commit a69dffbf4f450da7099a39bbe5ac11b0f04738dd)
(cherry picked from commit 4d0a076e66af200cd3bc5db183c67fdd0990dea6)
(cherry picked from commit c39f2d224d02e74e218cf68c85931512b854b6a0)

diff --git a/src/libsystemd/sd-varlink/sd-varlink.c b/src/libsystemd/sd-varlink/sd-varlink.c
index 3e4c00aff88791bc719f32a500595acb172d8c98..7b588e20724460300372989d0580f69a4ffce258 100644 (file)
--- a/src/libsystemd/sd-varlink/sd-varlink.c
+++ b/src/libsystemd/sd-varlink/sd-varlink.c
@@ -3787,8 +3787,10 @@ _public_ int sd_varlink_server_shutdown(sd_varlink_server *s) {
 static void varlink_server_test_exit_on_idle(sd_varlink_server *s) {
         assert(s);
 
-        if (s->exit_on_idle && s->event && s->n_connections == 0)
+        if (s->exit_on_idle && s->event && s->n_connections == 0) {
+                varlink_server_log(s, "Exit-on-idle triggered.");
                 (void) sd_event_exit(s->event, 0);
+        }
 }
 
 _public_ int sd_varlink_server_set_exit_on_idle(sd_varlink_server *s, int b) {