logind: fix delayed execution regression

Commit c0f32805 ("logind: use sd_event timer source for inhibitor
logic") reworked the main loop logic of logind so that it uses a
real timeout callback handler to execute delayed functions.

What the old code did, however, was to call those functions on
every iteration in the main loop, not only when the timeout
expired.

Restore that behavior by bringing back manager_dispatch_delayed(),
and call it from manager_run(). The internal event source callback
manager_inhibit_timeout_handler() was turned into a wrapper of
manager_dispatch_delayed() now.

diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 8ebcd3f5ca73ed5e891afeedd53c798429a57046..640ae92f7f9cbdb1f8de6ca0a85c0450cce51fe0 100644 (file)
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -1486,18 +1486,13 @@ static int execute_shutdown_or_sleep(
         return 0;
 }
 
-static int manager_inhibit_timeout_handler(
-                        sd_event_source *s,
-                        uint64_t usec,
-                        void *userdata) {
+int manager_dispatch_delayed(Manager *manager, bool timeout) {
 
         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
         Inhibitor *offending = NULL;
-        Manager *manager = userdata;
         int r;
 
         assert(manager);
-        assert(manager->inhibit_timeout_source == s);
 
         if (manager->action_what == 0 || manager->action_job)
                 return 0;
@@ -1505,6 +1500,9 @@ static int manager_inhibit_timeout_handler(
         if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
                 _cleanup_free_ char *comm = NULL, *u = NULL;
 
+                if (!timeout)
+                        return 0;
+
                 (void) get_process_comm(offending->pid, &comm);
                 u = uid_to_name(offending->uid);
 
@@ -1520,9 +1518,25 @@ static int manager_inhibit_timeout_handler(
 
                 manager->action_unit = NULL;
                 manager->action_what = 0;
+                return r;
         }
 
-        return 0;
+        return 1;
+}
+
+static int manager_inhibit_timeout_handler(
+                        sd_event_source *s,
+                        uint64_t usec,
+                        void *userdata) {
+
+        Manager *manager = userdata;
+        int r;
+
+        assert(manager);
+        assert(manager->inhibit_timeout_source == s);
+
+        r = manager_dispatch_delayed(manager, true);
+        return (r < 0) ? r : 0;
 }
 
 static int delay_shutdown_or_sleep(

diff --git a/src/login/logind.c b/src/login/logind.c
index 01f7cd9ee0637b807143b6cb31266153df1db522..e2fb496289869c86d5e9dc565d3af597b7af30c9 100644 (file)
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -1109,6 +1109,12 @@ static int manager_run(Manager *m) {
 
                 manager_gc(m, true);
 
+                r = manager_dispatch_delayed(m, false);
+                if (r < 0)
+                        return r;
+                if (r > 0)
+                        continue;
+
                 r = sd_event_run(m->event, (uint64_t) -1);
                 if (r < 0)
                         return r;

diff --git a/src/login/logind.h b/src/login/logind.h
index feb381d0b11d03e1e7d10e9fb7be3d7571211d0f..ad437b72cb923859d01bca502e31aa707037994c 100644 (file)
--- a/src/login/logind.h
+++ b/src/login/logind.h
@@ -194,3 +194,5 @@ int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char
 
 int manager_setup_wall_message_timer(Manager *m);
 bool logind_wall_tty_filter(const char *tty, void *userdata);
+
+int manager_dispatch_delayed(Manager *manager, bool timeout);