execute: optionally ignore return status of invoked commands

[elogind.git] / src / dbus-unit.c

diff --git a/src/dbus-unit.c b/src/dbus-unit.c
index 85125c96337d4933b7c5a9be1433a7e984adf7e0..735e5a53f275252b20b235d2b35a7b6cffe1868a 100644 (file)
--- a/src/dbus-unit.c
+++ b/src/dbus-unit.c
@@ -24,6 +24,7 @@
 #include "dbus.h"
 #include "log.h"
 #include "dbus-unit.h"
+#include "bus-errors.h"
 
 const char bus_unit_interface[] = BUS_UNIT_INTERFACE;
 
@@ -253,8 +254,6 @@ int bus_unit_append_cgroups(Manager *m, DBusMessageIter *i, const char *property
         return 0;
 }
 
-DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_unit_append_kill_mode, kill_mode, KillMode);
-
 static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *connection, DBusMessage *message) {
         DBusMessage *reply = NULL;
         Manager *m = u->meta.manager;
@@ -285,8 +284,10 @@ static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *conn
                 Job *j;
                 int r;
 
-                if (job_type == JOB_START && u->meta.only_by_dependency)
-                        return bus_send_error_reply(m, connection, message, NULL, -EPERM);
+                if (job_type == JOB_START && u->meta.only_by_dependency) {
+                        dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Unit may be activated by dependency only.");
+                        return bus_send_error_reply(m, connection, message, &error, -EPERM);
+                }
 
                 if (!dbus_message_get_args(
                                     message,
@@ -295,11 +296,13 @@ static DBusHandlerResult bus_unit_message_dispatch(Unit *u, DBusConnection *conn
                                     DBUS_TYPE_INVALID))
                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 
-                if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID)
-                        return bus_send_error_reply(m, connection, message, NULL, -EINVAL);
+                if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
+                        dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
+                        return bus_send_error_reply(m, connection, message, &error, -EINVAL);
+                }
 
-                if ((r = manager_add_job(m, job_type, u, mode, true, &j)) < 0)
-                        return bus_send_error_reply(m, connection, message, NULL, r);
+                if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
+                        return bus_send_error_reply(m, connection, message, &error, r);
 
                 if (!(reply = dbus_message_new_method_return(message)))
                         goto oom;
@@ -368,10 +371,11 @@ void bus_unit_send_change_signal(Unit *u) {
         DBusMessage *m = NULL;
 
         assert(u);
-        assert(u->meta.in_dbus_queue);
 
-        LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta);
-        u->meta.in_dbus_queue = false;
+        if (u->meta.in_dbus_queue) {
+                LIST_REMOVE(Meta, dbus_queue, u->meta.manager->dbus_unit_queue, &u->meta);
+                u->meta.in_dbus_queue = false;
+        }
 
         if (!bus_has_subscriber(u->meta.manager)) {
                 u->meta.sent_dbus_new_signal = true;