static void busname_done(Unit *u) {
BusName *n = BUSNAME(u);
assert(n);
n->name = mfree(n->name);
busname_free_policy(n);
busname_unwatch_control_pid(n);
busname_close_fd(n);
unit_ref_unset(&n->service);
n->timer_event_source = sd_event_source_unref(n->timer_event_source);
}
static void busname_enter_making(BusName *n) {
int r;
assert(n);
r = busname_open_fd(n);
if (r < 0)
goto fail;
if (n->policy) {
/* If there is a policy, we need to resolve user/group
* names, which we can't do from PID1, hence let's
* fork. */
busname_unwatch_control_pid(n);
r = busname_make_starter(n, &n->control_pid);
if (r < 0) {
log_unit_warning_errno(UNIT(n)->id, r, "%s failed to fork 'making' task: %m", UNIT(n)->id);
goto fail;
}
busname_set_state(n, BUSNAME_MAKING);
} else {
/* If there is no policy, we can do everything
* directly from PID 1, hence do so. */
r = bus_kernel_make_starter(n->starter_fd, n->name, n->activating, n->accept_fd, NULL, n->policy_world);
if (r < 0) {
log_unit_warning_errno(UNIT(n)->id, r, "%s failed to make starter: %m", UNIT(n)->id);
goto fail;
}
busname_enter_listening(n);
}
return;
fail:
busname_enter_dead(n, BUSNAME_FAILURE_RESOURCES);
}
static void busname_set_state(BusName *n, BusNameState state) {
BusNameState old_state;
assert(n);
old_state = n->state;
n->state = state;
if (!IN_SET(state, BUSNAME_MAKING, BUSNAME_SIGTERM, BUSNAME_SIGKILL)) {
n->timer_event_source = sd_event_source_unref(n->timer_event_source);
busname_unwatch_control_pid(n);
}
if (state != BUSNAME_LISTENING)
busname_unwatch_fd(n);
if (!IN_SET(state, BUSNAME_LISTENING, BUSNAME_MAKING, BUSNAME_REGISTERED, BUSNAME_RUNNING))
busname_close_fd(n);
if (state != old_state)
log_unit_debug(UNIT(n), "Changed %s -> %s", busname_state_to_string(old_state), busname_state_to_string(state));
unit_notify(UNIT(n), state_translation_table[old_state], state_translation_table[state], true);
}