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#include "NetworkSession.hh"
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#include "Engine.hh"
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#include <cassert>
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NetworkSession::NetworkSession (uint64_t magic) :
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magic(magic), tcp_srv(NULL), udp_srv(NULL), udp_client(NULL) {
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// nothing
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}
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void NetworkSession::listen (const NetworkAddress &addr) {
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assert(tcp_srv == NULL && udp_srv == NULL);
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// create TCP/UDP servers
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tcp_srv = new NetworkTCPServer(addr);
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udp_srv = new NetworkUDP(addr);
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// connect signals
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slots.connect(tcp_srv->sig_client(), this, &NetworkSession::on_tcp_client);
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slots.connect(udp_srv->sig_packet(), this, &NetworkSession::on_udp_packet);
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}
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NetworkNode *NetworkSession::build_node (NetworkTCPTransport *tcp, NetworkUDP *udp, const NetworkAddress &addr, enum NetworkNodeType type) {
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// XXX: unused
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(void) type;
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// create node
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return new NetworkNode(*this, tcp, udp, addr);
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}
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NetworkNode* NetworkSession::connect (const NetworkAddress &addr) {
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// XXX: only one connect
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assert(!udp_client);
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// connect TCP
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NetworkTCPClient *tcp_client = new NetworkTCPClient(addr);
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// create UDP socket on same address
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udp_client = new NetworkUDP(tcp_client->getLocalAddress());
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// build client
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NetworkNode *client_node = build_node(tcp_client, udp_client, addr, NETWORK_NODE_CLIENT_SERVER);
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// add to nodes
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nodes[addr] = client_node;
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// connect signals
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slots.connect(udp_client->sig_packet(), this, &NetworkSession::on_udp_packet);
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// return the "server" node
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return client_node;
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}
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void NetworkSession::handle_disconnect (NetworkNode *node) {
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// remove from nodes
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nodes.erase(node->getRemoteAddress());
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}
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void NetworkSession::handle_message (NetworkPacket &pkt, NetworkNode *node) {
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// read the channel id
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NetworkChannelID channel_id = pkt.read_uint16();
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// fire signal
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_map_sig_chan_message[channel_id](pkt, node);
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}
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void NetworkSession::on_tcp_client (NetworkTCPTransport *tcp_client) {
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// get remote address manually, because NetworkTCPServer doesn't pass it in to us
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NetworkAddress addr = tcp_client->getRemoteAddress();
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// build client
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NetworkNode *client_node = build_node(tcp_client, udp_srv, addr, NETWORK_NODE_SERVER_CLIENT);
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// add to nodes
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nodes[addr] = client_node;
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// fire signals
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_sig_node_connected(client_node);
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}
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void NetworkSession::on_udp_packet (NetworkPacket &pkt, const NetworkAddress &addr) {
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NetworkNode *node = nodes[addr];
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// drop from unknown sources
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if (!node) {
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Engine::log(WARN, "net_session.on_udp_packet") << "dropping unsolicted UDP packet from " << addr;
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return;
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}
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// handle
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handle_message(pkt, node);
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}
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void NetworkSession::send_all (NetworkChannelID channel_id, const NetworkPacket &pkt, bool reliable) {
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send_all_except(channel_id, pkt, NULL, reliable);
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}
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void NetworkSession::send_all_except (NetworkChannelID channel_id, const NetworkPacket &pkt, const NetworkNode *node, bool reliable) {
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for (std::map<NetworkAddress, NetworkNode*>::iterator it = nodes.begin(); it != nodes.end(); it++) {
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if (it->second == node)
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continue;
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it->second->send(channel_id, pkt, reliable);
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}
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}
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