C:/knet/include/kNet/NetworkServer.h

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/* Copyright 2010 Jukka Jylänki

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License. */
#pragma once

#include <list>

#include "SharedPtr.h"

#include "Socket.h"
#include "MessageConnection.h"
#include "Datagram.h"
#include "INetworkServerListener.h"
#include "Lockable.h"

namespace kNet
{

class Network;

class NetworkServer : public RefCountable
{
public:
   ~NetworkServer();

   void RunModalServer();

   void SetAcceptNewConnections(bool acceptNewConnections);

   // Returns whether this server is handling new connection attempts.
   bool AcceptsNewConnections() const { return acceptNewConnections; }

   void SetStealthMode(bool stealthModeEnabled);

   void ReadUDPSocketData(Socket *listenSocket);

   void Process();

   void BroadcastMessage(const NetworkMessage &msg, MessageConnection *exclude = 0);

   void BroadcastMessage(unsigned long id, bool reliable, bool inOrder, unsigned long priority, 
                         unsigned long contentID, const char *data, size_t numBytes,
                         MessageConnection *exclude = 0);

   void SendMessage(const NetworkMessage &msg, MessageConnection &destination);

   void DisconnectAllClients();
      
   void Close(int disconnectWaitMilliseconds);
   
   void ConnectionClosed(MessageConnection *connection);

   std::vector<Socket *> &ListenSockets();

   typedef std::map<EndPoint, Ptr(MessageConnection)> ConnectionMap;

   ConnectionMap GetConnections();

   std::string ToString() const;

private:
   NetworkServer(Network *owner, std::vector<Socket *> listenSockets);

   std::vector<Socket *> listenSockets;

   Lockable<ConnectionMap> clients;

   Network *owner;

   bool acceptNewConnections;

   INetworkServerListener *networkServerListener;

   void RegisterServerListener(INetworkServerListener *listener);

   void CloseListenSockets();

   void CleanupDeadConnections();

   Socket *AcceptConnections(Socket *listenSocket);

   struct ConnectionAttemptDescriptor
   {
      Socket *listenSocket;
      EndPoint peer;
      Datagram data;
   };

   WaitFreeQueue<ConnectionAttemptDescriptor> udpConnectionAttempts;

   void EnqueueNewUDPConnectionAttempt(Socket *listenSocket, const EndPoint &endPoint, const char *data, size_t numBytes);

   bool ProcessNewUDPConnectionAttempt(Socket *listenSocket, const EndPoint &endPoint, const char *data, size_t numBytes);

   friend class Network;
};

} // ~kNet