bool abstract_actor::link_to_impl(const actor_addr& other) {
if (other && other != this) {
guard_type guard{m_mtx};
auto ptr = actor_cast<abstract_actor_ptr>(other);
// send exit message if already exited
if (exited()) {
ptr->enqueue(address(), message_id::invalid,
make_message(exit_msg{address(), exit_reason()}), m_host);
}
// add link if not already linked to other
// (checked by establish_backlink)
else if (ptr->establish_backlink(address())) {
m_links.push_back(ptr);
return true;
}
}
return false;
}
bool abstract_actor::establish_link_impl(const actor_addr& other) {
CAF_LOG_TRACE(CAF_TSARG(other));
if (other && other != this) {
guard_type guard{mtx_};
auto ptr = actor_cast<abstract_actor_ptr>(other);
// send exit message if already exited
if (exited()) {
ptr->enqueue(address(), invalid_message_id,
make_message(exit_msg{address(), exit_reason()}), host_);
} else if (ptr->establish_backlink(address())) {
// add link if not already linked to other
// (checked by establish_backlink)
auto tmp = default_attachable::make_link(other);
attach_impl(tmp);
return true;
}
}
return false;
}
bool abstract_actor::link_to_impl(const actor_addr& other) {
if (other && other != this) {
guard_type guard{m_mtx};
auto ptr = detail::raw_access::get(other);
// send exit message if already exited
if (exited()) {
ptr->enqueue({address(), ptr},
make_any_tuple(exit_msg{address(), exit_reason()}),
m_host);
}
// add link if not already linked to other
// (checked by establish_backlink)
else if (ptr->establish_backlink(address())) {
m_links.push_back(ptr);
return true;
}
}
return false;
}
