terom@185: 
terom@186: #include "Session.hh"
terom@186: #include "../Engine.hh"
terom@185: 
terom@185: #include <cassert>
terom@185: 
terom@185: NetworkSession::NetworkSession (uint64_t magic) :
terom@185:     magic(magic), tcp_srv(NULL), udp_srv(NULL), udp_client(NULL) {
terom@185:    
terom@185:     // nothing
terom@185: }
terom@185:         
terom@381: void NetworkSession::listen (const NetworkEndpoint &addr) {
terom@185:     assert(tcp_srv == NULL && udp_srv == NULL);
terom@185:     
terom@185:     // create TCP/UDP servers
terom@185:     tcp_srv = new NetworkTCPServer(addr);
terom@185:     udp_srv = new NetworkUDP(addr);
terom@185:     
terom@185:     // connect signals
terom@185:     slots.connect(tcp_srv->sig_client(), this, &NetworkSession::on_tcp_client);
terom@185:     slots.connect(udp_srv->sig_packet(), this, &NetworkSession::on_udp_packet);
terom@185: }
terom@185:         
terom@185: NetworkNode *NetworkSession::build_node (NetworkTCPTransport *tcp, NetworkUDP *udp, const NetworkAddress &addr, enum NetworkNodeType type) {
terom@185:     // XXX: unused
terom@185:     (void) type;
terom@185: 
terom@185:     // create node
terom@185:     return new NetworkNode(*this, tcp, udp, addr);
terom@185: }
terom@185: 
terom@381: NetworkNode* NetworkSession::connect (const NetworkEndpoint &addr) {
terom@185:     // XXX: only one connect
terom@185:     assert(!udp_client);
terom@185: 
terom@185:     // connect TCP
terom@185:     NetworkTCPClient *tcp_client = new NetworkTCPClient(addr);
terom@380: 
terom@185:     // create UDP socket on same address
terom@380:     udp_client = new NetworkUDP(tcp_client->get_local_address());
terom@380: 
terom@380:     // remote address
terom@380:     NetworkAddress remote_address = tcp_client->get_remote_address();
terom@185:     
terom@185:     // build client
terom@380:     NetworkNode *client_node = build_node(tcp_client, udp_client, remote_address, NETWORK_NODE_CLIENT_SERVER);
terom@185: 
terom@185:     // add to nodes
terom@431:     node_map[remote_address] = client_node;
terom@431:     node_list.push_back(client_node);
terom@185: 
terom@185:     // connect signals
terom@185:     slots.connect(udp_client->sig_packet(), this, &NetworkSession::on_udp_packet);
terom@185:         
terom@185:     // return the "server" node
terom@185:     return client_node;
terom@185: }
terom@185:                 
terom@185: void NetworkSession::handle_disconnect (NetworkNode *node) {
terom@185:     // remove from nodes
terom@431:     node_map.erase(node->getRemoteAddress());
terom@431:     node_list.remove(node);
terom@185: }
terom@185:         
terom@200: void NetworkSession::handle_message (NetworkPacketInput &pkt, NetworkNode *node) {
terom@185:     // read the channel id
terom@185:     NetworkChannelID channel_id = pkt.read_uint16();
terom@185: 
terom@185:     // fire signal
terom@185:     _map_sig_chan_message[channel_id](pkt, node);
terom@185: }
terom@185:  
terom@185: void NetworkSession::on_tcp_client (NetworkTCPTransport *tcp_client) {
terom@185:     // get remote address manually, because NetworkTCPServer doesn't pass it in to us
terom@380:     NetworkAddress addr = tcp_client->get_remote_address();
terom@185: 
terom@185:     // build client
terom@185:     NetworkNode *client_node = build_node(tcp_client, udp_srv, addr, NETWORK_NODE_SERVER_CLIENT);
terom@185: 
terom@185:     // add to nodes
terom@431:     node_map[addr] = client_node;
terom@431:     node_list.push_back(client_node);
terom@185:     
terom@185:     // fire signals
terom@185:     _sig_node_connected(client_node);
terom@185: }
terom@185:         
terom@200: void NetworkSession::on_udp_packet (NetworkPacketInput &pkt, const NetworkAddress &addr) {
terom@431:     NetworkNode *node = node_map[addr];
terom@185:     
terom@185:     // drop from unknown sources
terom@185:     if (!node) {
terom@185:         Engine::log(WARN, "net_session.on_udp_packet") << "dropping unsolicted UDP packet from " << addr;
terom@185:         return;
terom@185:     }
terom@185: 
terom@185:     // handle
terom@185:     handle_message(pkt, node);
terom@185: }
terom@431: 
terom@431: void NetworkSession::write_packet_header (NetworkPacketOutput &pkt, NetworkChannelID channel_id) {
terom@431:     pkt.write_uint16(channel_id);
terom@185: }
terom@185: