Method register_state_handler

implementation/runtime/src/application_impl.cpp:888–891

}

void application_impl::register_state_handler(const state_handler_t& _handler) {
    std::scoped_lock its_lock{state_handler_mutex_};
    handler_ = _handler;
}

void application_impl::unregister_state_handler() {
    std::scoped_lock its_lock{state_handler_mutex_};