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/*
* Copyright (C) 2008-2014 TrinityCore <http://www.trinitycore.org/>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PacketManager_h__
#define PacketManager_h__
#include "Packets.h"
#include <map>
#include <type_traits>
template<typename T>
struct has_call_handler
{
template<typename U, void(U::*)(Battlenet::Session*)> struct test_has_call_handler { };
template<typename U> static char Test(test_has_call_handler<U, &U::CallHandler>*);
template<typename U> static int Test(...);
static const bool value = sizeof(Test<T>(nullptr)) == sizeof(char);
};
namespace Battlenet
{
class PacketManager
{
typedef ClientPacket*(*PacketCreateFn)(PacketHeader const& header, BitStream& stream);
struct PacketInfo
{
PacketCreateFn Constructor;
char const* Name;
bool HasHandler;
};
PacketManager();
void RegisterAuthenticationPackets();
void RegisterConnectionPackets();
void RegisterWoWRealmPackets();
void RegisterFriendsPackets();
void RegisterPresencePackets();
void RegisterChatPackets();
void RegisterSupportPackets();
void RegisterAchievementPackets();
void RegisterCachePackets();
void RegisterProfilePackets();
template<class PacketType>
static ClientPacket* New(PacketHeader const& header, BitStream& stream)
{
return new PacketType(header, stream);
}
void RegisterPacketName(std::map<PacketHeader, PacketInfo>& packetTable, PacketHeader const& header, char const* name)
{
PacketInfo& info = packetTable[header];
info.Constructor = nullptr;
info.Name = name;
info.HasHandler = false;
}
template<class PacketType>
void RegisterClientPacket(PacketHeader const& header, char const* name)
{
PacketInfo& info = _clientPacketTable[header];
info.Constructor = &New<PacketType>;
info.Name = name;
info.HasHandler = has_call_handler<PacketType>::value;
}
public:
ClientPacket* CreateClientPacket(PacketHeader const& header, BitStream& stream);
char const* GetClientPacketName(PacketHeader const& header);
char const* GetServerPacketName(PacketHeader const& header);
bool IsHandled(PacketHeader const& header);
static PacketManager& Instance()
{
static PacketManager instance;
return instance;
}
private:
std::map<PacketHeader, PacketInfo> _clientPacketTable;
std::map<PacketHeader, PacketInfo> _serverPacketTable;
};
}
#define sPacketManager Battlenet::PacketManager::Instance()
#endif // PacketManager_h__
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