From 000a996dc46c187f803b67b0b0d51ad4d0bc1658 Mon Sep 17 00:00:00 2001 From: Franck Bui Date: Fri, 13 Nov 2015 14:12:19 +0100 Subject: [PATCH] Introduce bus_unit_check_load_state() helper This function is used to check that a previous unit load succeed and returns 0 in this case. In the case the load failed, the function setup a bus error accordingly and returns -errno. --- src/core/dbus-unit.c | 17 +++++++++++++++++ src/core/dbus-unit.h | 2 ++ 2 files changed, 19 insertions(+) diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c index d9b7382c82..66b465a0b7 100644 --- a/src/core/dbus-unit.c +++ b/src/core/dbus-unit.c @@ -1251,3 +1251,20 @@ int bus_unit_set_properties( return n; } + +int bus_unit_check_load_state(Unit *u, sd_bus_error *error) { + + if (u->load_state == UNIT_LOADED) + return 0; + + /* Give a better description of the unit error when + * possible. Note that in the case of UNIT_MASKED, load_error + * is not set. */ + if (u->load_state == UNIT_MASKED) + return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit is masked."); + + if (u->load_state == UNIT_NOT_FOUND) + return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit not found."); + + return sd_bus_error_set_errnof(error, u->load_error, "Unit is not loaded properly: %m."); +} diff --git a/src/core/dbus-unit.h b/src/core/dbus-unit.h index b622e0ae8d..0d7e5f8d83 100644 --- a/src/core/dbus-unit.h +++ b/src/core/dbus-unit.h @@ -37,3 +37,5 @@ int bus_unit_method_reset_failed(sd_bus_message *message, void *userdata, sd_bus int bus_unit_queue_job(sd_bus_message *message, Unit *u, JobType type, JobMode mode, bool reload_if_possible, sd_bus_error *error); int bus_unit_set_properties(Unit *u, sd_bus_message *message, UnitSetPropertiesMode mode, bool commit, sd_bus_error *error); int bus_unit_method_set_properties(sd_bus_message *message, void *userdata, sd_bus_error *error); + +int bus_unit_check_load_state(Unit *u, sd_bus_error *error);