static void UpdateMasterServer(void)
{
unsigned int now;
now = I_GetTimeMS();
// The address of the master server can change. Periodically
// re-resolve the master server to update.
if (now - master_resolve_time > MASTER_RESOLVE_PERIOD * 1000)
{
net_addr_t *new_addr;
printf("Re-resolve master server\n");
new_addr = NET_Query_ResolveMaster(server_context);
// Has the master server changed address?
if (new_addr != NULL && new_addr != master_server)
{
NET_FreeAddress(master_server);
master_server = new_addr;
}
master_resolve_time = now;
}
// Possibly refresh our registration with the master server.
if (now - master_refresh_time > MASTER_REFRESH_PERIOD * 1000)
{
NET_Query_AddToMaster(master_server);
master_refresh_time = now;
}
}
static void NET_CL_Shutdown(void)
{
if (net_client_connected)
{
net_client_connected = false;
NET_FreeAddress(server_addr);
// Shut down network module, etc. To do.
}
}
void NET_CL_Run(void)
{
net_addr_t *addr;
net_packet_t *packet;
if (!net_client_connected)
{
return;
}
while (NET_RecvPacket(client_context, &addr, &packet))
{
// only accept packets from the server
if (addr == server_addr)
{
NET_CL_ParsePacket(packet);
}
else
{
NET_FreeAddress(addr);
}
NET_FreePacket(packet);
}
// Run the common connection code to send any packets as needed
NET_Conn_Run(&client_connection);
if (client_connection.state == NET_CONN_STATE_DISCONNECTED
|| client_connection.state == NET_CONN_STATE_DISCONNECTED_SLEEP)
{
NET_CL_Disconnected();
NET_CL_Shutdown();
}
net_waiting_for_launch =
client_connection.state == NET_CONN_STATE_CONNECTED
&& client_state == CLIENT_STATE_WAITING_LAUNCH;
if (client_state == CLIENT_STATE_IN_GAME)
{
// Possibly advance the receive window
NET_CL_AdvanceWindow();
// Check if our resend requests have timed out
NET_CL_CheckResends();
}
}
static void NET_SV_RunClient(net_client_t *client)
{
// Run common code
NET_Conn_Run(&client->connection);
if (client->connection.state == NET_CONN_STATE_DISCONNECTED
&& client->connection.disconnect_reason == NET_DISCONNECT_TIMEOUT)
{
NET_SV_BroadcastMessage("Client '%s' timed out and disconnected",
client->name);
}
// Is this client disconnected?
if (client->connection.state == NET_CONN_STATE_DISCONNECTED)
{
// deactivate and free back
client->active = false;
free(client->name);
NET_FreeAddress(client->addr);
// Are there any clients left connected? If not, return the
// server to the waiting-for-players state.
//
// Disconnect any drones still connected.
if (NET_SV_NumPlayers() <= 0)
{
NET_SV_GameEnded();
}
}
if (!ClientConnected(client))
{
// client has not yet finished connecting
return;
}
if (server_state == SERVER_WAITING_START)
{
// Waiting for the game to start
// Send information once every second
if (client->last_send_time < 0
|| I_GetTimeMS() - client->last_send_time > 1000)
{
NET_SV_SendWaitingData(client);
client->last_send_time = I_GetTimeMS();
}
}
if (server_state == SERVER_IN_GAME)
{
NET_SV_PumpSendQueue(client);
NET_SV_CheckDeadlock(client);
}
}
static void NET_SV_Packet(net_packet_t *packet, net_addr_t *addr)
{
net_client_t *client;
unsigned int packet_type;
// Response from master server?
if (addr != NULL && addr == master_server)
{
NET_Query_MasterResponse(packet);
return;
}
// Find which client this packet came from
client = NET_SV_FindClient(addr);
// Read the packet type
if (!NET_ReadInt16(packet, &packet_type))
{
// no packet type
return;
}
if (packet_type == NET_PACKET_TYPE_SYN)
{
NET_SV_ParseSYN(packet, client, addr);
}
else if (packet_type == NET_PACKET_TYPE_QUERY)
{
NET_SV_SendQueryResponse(addr);
}
else if (client == NULL)
{
// Must come from a valid client; ignore otherwise
}
else if (NET_Conn_Packet(&client->connection, packet, &packet_type))
{
// Packet was eaten by the common connection code
}
else
{
//printf("SV: %s: %i\n", NET_AddrToString(addr), packet_type);
switch (packet_type)
{
case NET_PACKET_TYPE_GAMESTART:
NET_SV_ParseGameStart(packet, client);
break;
case NET_PACKET_TYPE_GAMEDATA:
NET_SV_ParseGameData(packet, client);
break;
case NET_PACKET_TYPE_GAMEDATA_ACK:
NET_SV_ParseGameDataACK(packet, client);
break;
case NET_PACKET_TYPE_GAMEDATA_RESEND:
NET_SV_ParseResendRequest(packet, client);
break;
default:
// unknown packet type
break;
}
}
// If this address is not in the list of clients, be sure to
// free it back.
if (NET_SV_FindClient(addr) == NULL)
{
NET_FreeAddress(addr);
}
}
