resolve_endpoint_for_sender()

uint64_t MayaFlux::Core::UDPBackend::resolve_endpoint_for_sender ( uint16_t  local_port, const asio::ip::udp::endpoint &  sender  ) const

private

Resolve which endpoint id a received datagram belongs to.

For a given socket (local port), checks if any endpoint has a default_remote matching the sender. If none match, falls back to the first RECEIVE or BIDIRECTIONAL endpoint on that port.

Definition at line 391 of file UDPBackend.cpp.

{
    std::shared_lock lock(m_endpoints_mutex);
 
    uint64_t fallback_id = 0;
 
    for (const auto& [id, record] : m_endpoints) {
        if (record.socket_state->local_port != local_port) {
            continue;
        }
 
        if (record.has_default_remote
            && record.default_remote.address() == sender.address()
            && record.default_remote.port() == sender.port()) {
            return id;
        }
 
        if (fallback_id == 0
            && (record.info.role == EndpointRole::RECEIVE
                || record.info.role == EndpointRole::BIDIRECTIONAL)) {
            fallback_id = id;
        }
    }
 
    return fallback_id;
}

References MayaFlux::Core::BIDIRECTIONAL, id, m_endpoints, m_endpoints_mutex, and MayaFlux::Core::RECEIVE.