/// <summary>
/// Handle a database status notification.
/// </summary>
/// <param name="Message">Supplies the message.</param>
/// <param name="Source">Supplies the message sender.</param>
private void OnRecvMessageNotifyDatabaseStatus(NetworkMessage Message, GameServer Source)
{
BufferParser Parser = Message.GetParser();
int SourceServerId = Parser.ReadInt32();
bool DatabaseOnline = (Parser.ReadByte() == 0 ? false : true);
Parser.FinishParsing();
if (SourceServerId != Source.ServerId)
return;
lock (WorldManager)
{
if (Source.Online)
Source.DatabaseOnline = DatabaseOnline;
}
}
/// <summary>
/// Handle a shutdown notification message.
/// </summary>
/// <param name="Message">Supplies the message.</param>
/// <param name="Source">Supplies the message sender.</param>
private void OnRecvMessageShutdownNotify(NetworkMessage Message, GameServer Source)
{
BufferParser Parser = Message.GetParser();
int SourceServerId = Parser.ReadInt32();
Parser.FinishParsing();
if (SourceServerId != Source.ServerId)
return;
//
// Tear down any state between the two servers.
//
}
/// <summary>
/// This routine handles ALFA datagram protocol messages that have been
/// received over the network.
/// </summary>
/// <param name="Data">Supplies the received data payload.</param>
/// <param name="Sender">Supplies the sender's address.</param>
/// <param name="SenderPort">Supplies the sender's port.</param>
public void OnDatagramReceive(byte[] Data, IPAddress Sender, int SenderPort)
{
NetworkMessage Message = new NetworkMessage(Data,
SocketIo.ALFAProtocolMagic,
(byte)SocketIo.PROTOCOL_ID.PROTOCOL_DATAGRAM);
GameServer SourceServer = LookupServer(Sender, SenderPort);
if (SourceServer == null)
{
lock (WorldManager)
{
WorldManager.WriteDiagnosticLog(String.Format("ServerNetworkManager.OnDatagramReceive: Received datagram from unknown source {0}:{1}", Sender, SenderPort));
return;
}
}
//
// Dispatch the message.
//
switch ((DATAGRAM_MESSAGE_CMD)Message.GetCommand())
{
case DATAGRAM_MESSAGE_CMD.CMD_IPC_WAKE:
OnRecvMessageIPCWake(Message, SourceServer);
return;
case DATAGRAM_MESSAGE_CMD.CMD_SHUTDOWN_NOTIFY:
OnRecvMessageShutdownNotify(Message, SourceServer);
return;
case DATAGRAM_MESSAGE_CMD.CMD_NOTIFY_DATABASE_STATUS:
OnRecvMessageNotifyDatabaseStatus(Message, SourceServer);
return;
}
}
/// <summary>
/// Handle an IPC wakeup message received.
/// </summary>
/// <param name="Message">Supplies the message.</param>
/// <param name="Source">Supplies the message sender.</param>
private void OnRecvMessageIPCWake(NetworkMessage Message, GameServer Source)
{
BufferParser Parser = Message.GetParser();
int SourceServerId = Parser.ReadInt32();
int DestinationServerId = Parser.ReadInt32();
Parser.FinishParsing();
if (SourceServerId != Source.ServerId || LocalServerId != DestinationServerId)
return;
//
// Signal the world manager that it should break out of the polling
// wait and immediately check for new IPC messages that are
// available to process.
//
WorldManager.SignalIPCEventWakeup();
}
/// <summary>
/// Send a direct message to a server. Failures are ignored.
/// </summary>
/// <param name="Message">Supplies the message payload.</param>
/// <param name="Server">Supplies the destination server.</param>
private void SendMessageToServer(NetworkMessage Message, GameServer Server)
{
if (!Server.Online)
return;
try
{
SendMessageToServer(Message.FinalizeMessage(), Server);
}
catch
{
}
}