Packet.hpp

00001 
00002 //
00003 // SFML - Simple and Fast Multimedia Library
00004 // Copyright (C) 2007 Laurent Gomila (laurent.gom@gmail.com)
00005 //
00006 // This software is provided 'as-is', without any express or implied warranty.
00007 // In no event will the authors be held liable for any damages arising from the use of this software.
00008 //
00009 // Permission is granted to anyone to use this software for any purpose,
00010 // including commercial applications, and to alter it and redistribute it freely,
00011 // subject to the following restrictions:
00012 //
00013 // 1. The origin of this software must not be misrepresented;
00014 //    you must not claim that you wrote the original software.
00015 //    If you use this software in a product, an acknowledgment
00016 //    in the product documentation would be appreciated but is not required.
00017 //
00018 // 2. Altered source versions must be plainly marked as such,
00019 //    and must not be misrepresented as being the original software.
00020 //
00021 // 3. This notice may not be removed or altered from any source distribution.
00022 //
00024 
00025 #ifndef SFML_PACKET_HPP
00026 #define SFML_PACKET_HPP
00027 
00029 // Headers
00031 #include <SFML/Config.hpp>
00032 #include <string>
00033 #include <vector>
00034 
00035 
00036 namespace sf
00037 {
00041 class SFML_API Packet
00042 {
00043 public :
00044 
00049     Packet();
00050 
00055     virtual ~Packet();
00056 
00064     void Append(const void* Data, std::size_t SizeInBytes);
00065 
00070     void Clear();
00071 
00080     const char* GetData() const;
00081 
00088     Uint32 GetDataSize() const;
00089 
00096     operator bool() const;
00097 
00102     Packet& operator >>(Int8&        Data);
00103     Packet& operator >>(Uint8&       Data);
00104     Packet& operator >>(Int16&       Data);
00105     Packet& operator >>(Uint16&      Data);
00106     Packet& operator >>(Int32&       Data);
00107     Packet& operator >>(Uint32&      Data);
00108     Packet& operator >>(float&       Data);
00109     Packet& operator >>(double&      Data);
00110     Packet& operator >>(char*        Data);
00111     Packet& operator >>(std::string& Data);
00112 
00117     Packet& operator <<(Int8               Data);
00118     Packet& operator <<(Uint8              Data);
00119     Packet& operator <<(Int16              Data);
00120     Packet& operator <<(Uint16             Data);
00121     Packet& operator <<(Int32              Data);
00122     Packet& operator <<(Uint32             Data);
00123     Packet& operator <<(float              Data);
00124     Packet& operator <<(double             Data);
00125     Packet& operator <<(const char*        Data);
00126     Packet& operator <<(const std::string& Data);
00127 
00128 private :
00129 
00130     friend class SocketTCP;
00131     friend class SocketUDP;
00132 
00141     bool CheckSize(std::size_t Size);
00142 
00147     virtual void OnSend();
00148 
00153     virtual void OnReceive();
00154 
00156     // Member data
00158     std::vector<char> myData;    
00159     std::size_t       myReadPos; 
00160     bool              myIsValid; 
00161 };
00162 
00163 } // namespace sf
00164 
00165 
00166 #endif // SFML_PACKET_HPP