bool monitorable_actor::cleanup(error&& reason, execution_unit* host) {
CAF_LOG_TRACE(CAF_ARG(reason));
attachable_ptr head;
bool set_fail_state = exclusive_critical_section([&]() -> bool {
if (!getf(is_cleaned_up_flag)) {
// local actors pass fail_state_ as first argument
if (&fail_state_ != &reason)
fail_state_ = std::move(reason);
attachables_head_.swap(head);
flags(flags() | is_terminated_flag | is_cleaned_up_flag);
on_cleanup();
return true;
}
return false;
});
if (!set_fail_state)
return false;
CAF_LOG_DEBUG("cleanup" << CAF_ARG(id())
<< CAF_ARG(node()) << CAF_ARG(reason));
// send exit messages
for (attachable* i = head.get(); i != nullptr; i = i->next.get())
i->actor_exited(reason, host);
// tell printer to purge its state for us if we ever used aout()
if (getf(abstract_actor::has_used_aout_flag)) {
auto pr = home_system().scheduler().printer();
pr->enqueue(make_mailbox_element(nullptr, make_message_id(), {},
delete_atom::value, id()),
nullptr);
}
return true;
}
void actor_pool::enqueue(mailbox_element_ptr what, execution_unit* eu) {
upgrade_lock<detail::shared_spinlock> guard{workers_mtx_};
if (filter(guard, what->sender, what->mid, *what, eu))
return;
policy_(home_system(), guard, workers_, what, eu);
}