diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/core/dbus-unit.c | 94 |
1 files changed, 42 insertions, 52 deletions
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c index 83ee018ff3..8433a720b2 100644 --- a/src/core/dbus-unit.c +++ b/src/core/dbus-unit.c @@ -235,7 +235,7 @@ static int bus_unit_append_can_isolate(DBusMessageIter *i, const char *property, static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *data) { Unit *u = data; DBusMessageIter sub; - char *p; + _cleanup_free_ char *p = NULL; assert(i); assert(property); @@ -246,14 +246,13 @@ static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *d if (u->job) { - if (!(p = job_dbus_path(u->job))) + p = job_dbus_path(u->job); + if (!p) return -ENOMEM; if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &u->job->id) || - !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) { - free(p); + !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) return -ENOMEM; - } } else { uint32_t id = 0; @@ -261,18 +260,15 @@ static int bus_unit_append_job(DBusMessageIter *i, const char *property, void *d * data. Since we need to fill in a valid path we * simple point to ourselves. */ - if (!(p = unit_dbus_path(u))) + p = unit_dbus_path(u); + if (!p) return -ENOMEM; if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_UINT32, &id) || - !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) { - free(p); + !dbus_message_iter_append_basic(&sub, DBUS_TYPE_OBJECT_PATH, &p)) return -ENOMEM; - } } - free(p); - if (!dbus_message_iter_close_container(i, &sub)) return -ENOMEM; @@ -289,8 +285,10 @@ static int bus_unit_append_default_cgroup(DBusMessageIter *i, const char *proper assert(property); assert(u); - if ((cgb = unit_get_default_cgroup(u))) { - if (!(t = cgroup_bonding_to_string(cgb))) + cgb = unit_get_default_cgroup(u); + if (cgb) { + t = cgroup_bonding_to_string(cgb); + if (!t) return -ENOMEM; } else t = (char*) ""; @@ -312,15 +310,14 @@ static int bus_unit_append_cgroups(DBusMessageIter *i, const char *property, voi return -ENOMEM; LIST_FOREACH(by_unit, cgb, u->cgroup_bondings) { - char *t; + char _cleanup_free_ *t = NULL; bool success; - if (!(t = cgroup_bonding_to_string(cgb))) + t = cgroup_bonding_to_string(cgb); + if (!t) return -ENOMEM; success = dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &t); - free(t); - if (!success) return -ENOMEM; } @@ -340,7 +337,7 @@ static int bus_unit_append_cgroup_attrs(DBusMessageIter *i, const char *property return -ENOMEM; LIST_FOREACH(by_unit, a, u->cgroup_attributes) { - char *v = NULL; + char _cleanup_free_ *v = NULL; bool success; if (a->map_callback) @@ -352,9 +349,6 @@ static int bus_unit_append_cgroup_attrs(DBusMessageIter *i, const char *property dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &a->name) && dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, v ? &v : &a->value) && dbus_message_iter_close_container(&sub, &sub2); - - free(v); - if (!success) return -ENOMEM; } @@ -619,8 +613,8 @@ const DBusObjectPathVTable bus_unit_vtable = { }; void bus_unit_send_change_signal(Unit *u) { - char *p = NULL; - DBusMessage *m = NULL; + _cleanup_free_ char *p = NULL; + _cleanup_dbus_message_unref_ DBusMessage *m = NULL; assert(u); @@ -637,7 +631,8 @@ void bus_unit_send_change_signal(Unit *u) { return; } - if (!(p = unit_dbus_path(u))) + p = unit_dbus_path(u); + if (!p) goto oom; if (u->sent_dbus_new_signal) { @@ -648,9 +643,10 @@ void bus_unit_send_change_signal(Unit *u) { if (UNIT_VTABLE(u)->bus_invalidating_properties) { - if (!(m = bus_properties_changed_new(p, - UNIT_VTABLE(u)->bus_interface, - UNIT_VTABLE(u)->bus_invalidating_properties))) + m = bus_properties_changed_new(p, + UNIT_VTABLE(u)->bus_interface, + UNIT_VTABLE(u)->bus_invalidating_properties); + if (!m) goto oom; if (bus_broadcast(u->manager, m) < 0) @@ -659,13 +655,18 @@ void bus_unit_send_change_signal(Unit *u) { dbus_message_unref(m); } - if (!(m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit", INVALIDATING_PROPERTIES))) + m = bus_properties_changed_new(p, "org.freedesktop.systemd1.Unit", + INVALIDATING_PROPERTIES); + if (!m) goto oom; } else { /* Send a new signal */ - if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitNew"))) + m = dbus_message_new_signal("/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "UnitNew"); + if (!m) goto oom; if (!dbus_message_append_args(m, @@ -678,25 +679,17 @@ void bus_unit_send_change_signal(Unit *u) { if (bus_broadcast(u->manager, m) < 0) goto oom; - free(p); - dbus_message_unref(m); - u->sent_dbus_new_signal = true; return; oom: - free(p); - - if (m) - dbus_message_unref(m); - - log_error("Failed to allocate unit change/new signal."); + log_oom(); } void bus_unit_send_removed_signal(Unit *u) { - char *p = NULL; - DBusMessage *m = NULL; + _cleanup_free_ char *p = NULL; + _cleanup_dbus_message_unref_ DBusMessage *m = NULL; assert(u); @@ -709,10 +702,14 @@ void bus_unit_send_removed_signal(Unit *u) { if (!u->id) return; - if (!(p = unit_dbus_path(u))) + p = unit_dbus_path(u); + if (!p) goto oom; - if (!(m = dbus_message_new_signal("/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "UnitRemoved"))) + m = dbus_message_new_signal("/org/freedesktop/systemd1", + "org.freedesktop.systemd1.Manager", + "UnitRemoved"); + if (!m) goto oom; if (!dbus_message_append_args(m, @@ -724,18 +721,10 @@ void bus_unit_send_removed_signal(Unit *u) { if (bus_broadcast(u->manager, m) < 0) goto oom; - free(p); - dbus_message_unref(m); - return; oom: - free(p); - - if (m) - dbus_message_unref(m); - - log_error("Failed to allocate unit remove signal."); + log_oom(); } DBusHandlerResult bus_unit_queue_job( @@ -780,7 +769,8 @@ DBusHandlerResult bus_unit_queue_job( if ((type == JOB_START && u->refuse_manual_start) || (type == JOB_STOP && u->refuse_manual_stop) || ((type == JOB_RESTART || type == JOB_TRY_RESTART) && (u->refuse_manual_start || u->refuse_manual_stop))) { - dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, unit %s may be requested by dependency only.", u->id); + dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, + "Operation refused, unit %s may be requested by dependency only.", u->id); return bus_send_error_reply(connection, message, &error, -EPERM); } |