event: be more conservative when returning errors from event handler callbacks

[elogind.git] / src / login / logind.c

diff --git a/src/login/logind.c b/src/login/logind.c
index b54689e1d55ee8d4bd6930ae85127751bba3239e..b7c8f71a52a3d362b6bae01ddb089757caccaef5 100644 (file)
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -34,6 +34,7 @@
 #include "bus-util.h"
 #include "bus-error.h"
 #include "logind.h"
+#include "udev-util.h"
 
 Manager *manager_new(void) {
         Manager *m;
@@ -96,6 +97,8 @@ Manager *manager_new(void) {
                 return NULL;
         }
 
+        sd_event_set_watchdog(m->event, true);
+
         return m;
 }
 
@@ -488,9 +491,8 @@ static int manager_enumerate_inhibitors(Manager *m) {
 }
 
 static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+        _cleanup_udev_device_unref_ struct udev_device *d = NULL;
         Manager *m = userdata;
-        struct udev_device *d;
-        int r;
 
         assert(m);
 
@@ -498,16 +500,13 @@ static int manager_dispatch_seat_udev(sd_event_source *s, int fd, uint32_t reven
         if (!d)
                 return -ENOMEM;
 
-        r = manager_process_seat_device(m, d);
-        udev_device_unref(d);
-
-        return r;
+        manager_process_seat_device(m, d);
+        return 0;
 }
 
 static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+        _cleanup_udev_device_unref_ struct udev_device *d = NULL;
         Manager *m = userdata;
-        struct udev_device *d;
-        int r;
 
         assert(m);
 
@@ -515,16 +514,13 @@ static int manager_dispatch_device_udev(sd_event_source *s, int fd, uint32_t rev
         if (!d)
                 return -ENOMEM;
 
-        r = manager_process_seat_device(m, d);
-        udev_device_unref(d);
-
-        return r;
+        manager_process_seat_device(m, d);
+        return 0;
 }
 
 static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+        _cleanup_udev_device_unref_ struct udev_device *d = NULL;
         Manager *m = userdata;
-        struct udev_device *d;
-        int r = 0;
         const char *name;
 
         assert(m);
@@ -539,17 +535,14 @@ static int manager_dispatch_vcsa_udev(sd_event_source *s, int fd, uint32_t reven
          * VTs, to make sure our auto VTs never go away. */
 
         if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove"))
-                r = seat_preallocate_vts(m->seat0);
+                seat_preallocate_vts(m->seat0);
 
-        udev_device_unref(d);
-
-        return r;
+        return 0;
 }
 
 static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
+        _cleanup_udev_device_unref_ struct udev_device *d = NULL;
         Manager *m = userdata;
-        struct udev_device *d;
-        int r;
 
         assert(m);
 
@@ -557,10 +550,8 @@ static int manager_dispatch_button_udev(sd_event_source *s, int fd, uint32_t rev
         if (!d)
                 return -ENOMEM;
 
-        r = manager_process_button_device(m, d);
-        udev_device_unref(d);
-
-        return r;
+        manager_process_button_device(m, d);
+        return 0;
 }
 
 static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
@@ -571,7 +562,6 @@ static int manager_dispatch_console(sd_event_source *s, int fd, uint32_t revents
         assert(m->console_active_fd == fd);
 
         seat_read_active_vt(m->seat0);
-
         return 0;
 }
 
@@ -605,7 +595,7 @@ static int manager_connect_bus(Manager *m) {
         assert(m);
         assert(!m->bus);
 
-        r = sd_bus_open_system(&m->bus);
+        r = sd_bus_default_system(&m->bus);
         if (r < 0) {
                 log_error("Failed to connect to system bus: %s", strerror(-r));
                 return r;
@@ -725,17 +715,12 @@ static int manager_connect_bus(Manager *m) {
                 return r;
         }
 
-        r = sd_bus_request_name(m->bus, "org.freedesktop.login1", SD_BUS_NAME_DO_NOT_QUEUE);
+        r = sd_bus_request_name(m->bus, "org.freedesktop.login1", 0);
         if (r < 0) {
                 log_error("Failed to register name: %s", strerror(-r));
                 return r;
         }
 
-        if (r != SD_BUS_NAME_PRIMARY_OWNER)  {
-                log_error("Failed to acquire name.");
-                return -EEXIST;
-        }
-
         r = sd_bus_attach_event(m->bus, m->event, 0);
         if (r < 0) {
                 log_error("Failed to attach bus to event loop: %s", strerror(-r));
@@ -958,7 +943,7 @@ static int manager_dispatch_idle_action(sd_event_source *s, uint64_t t, void *us
                         return r;
                 }
 
-                r = sd_event_source_set_priority(m->idle_action_event_source, SD_PRIORITY_IDLE+10);
+                r = sd_event_source_set_priority(m->idle_action_event_source, SD_EVENT_PRIORITY_IDLE+10);
                 if (r < 0) {
                         log_error("Failed to set idle event source priority: %s", strerror(-r));
                         return r;