2a72c5c838
git-svn-id: http://mc-server.googlecode.com/svn/trunk@711 0a769ca7-a7f5-676a-18bf-c427514a06d6
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
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#pragma once
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#include "../cSocket.h"
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#include "../PacketID.h"
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#define PACKET_INCOMPLETE -2
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#define PACKET_ERROR -1
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// Use this macro to simplify handling several ReadXXX in a row. It assumes that you want [a_Data, a_Size] parsed (which is true for all Parse() functions)
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#define HANDLE_PACKET_READ(Proc, Var, TotalBytes) \
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{ \
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int res = Proc(a_Data + TotalBytes, a_Size - TotalBytes, Var); \
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if (res < 0) \
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{ \
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return res; \
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} \
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TotalBytes += res; \
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}
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class cPacket
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{
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public:
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cPacket()
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: m_PacketID( 0 )
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{}
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virtual ~cPacket() {}
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/// Called to parse the packet. Packet type has already been read and the correct packet type created. Return the number of characters processed, PACKET_INCOMPLETE for incomplete data, PACKET_ERROR for error
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virtual int Parse(const char * a_Data, int a_Size)
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{
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UNUSED(a_Data);
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UNUSED(a_Size);
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LOGERROR("Undefined Parse function for packet type 0x%x\n", m_PacketID );
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ASSERT(!"Undefined Parse function");
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return -1;
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}
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/// Called to serialize the packet into a string. Append all packet data to a_Data, including the packet type!
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virtual void Serialize(AString & a_Data) const
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{
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UNUSED(a_Data);
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LOGERROR("Undefined Serialize function for packet type 0x%x\n", m_PacketID );
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ASSERT(!"Undefined Serialize function");
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}
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virtual cPacket * Clone() const = 0;
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unsigned char m_PacketID;
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protected:
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// These return the number of characters processed, PACKET_INCOMPLETE for incomplete data, PACKET_ERROR for error:
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static int ReadString16(const char * a_Data, int a_Size, AString & a_OutString );
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static int ReadShort (const char * a_Data, int a_Size, short & a_Short );
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static int ReadInteger (const char * a_Data, int a_Size, int & a_OutInteger );
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static int ReadInteger (const char * a_Data, int a_Size, unsigned int & a_OutInteger );
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static int ReadFloat (const char * a_Data, int a_Size, float & a_OutFloat );
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static int ReadDouble (const char * a_Data, int a_Size, double & a_OutDouble );
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static int ReadByte (const char * a_Data, int a_Size, char & a_OutByte );
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static int ReadByte (const char * a_Data, int a_Size, unsigned char & a_OutByte );
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static int ReadLong (const char * a_Data, int a_Size, long long & a_OutLong );
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static int ReadBool (const char * a_Data, int a_Size, bool & a_OutBool );
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// These append the data into the a_Dst string:
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static void AppendString ( AString & a_Dst, const AString & a_String);
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static void AppendString16( AString & a_Dst, const AString & a_String);
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static void AppendShort ( AString & a_Dst, short a_Short);
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static void AppendShort ( AString & a_Dst, unsigned short a_Short);
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static void AppendInteger ( AString & a_Dst, int a_Integer);
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static void AppendInteger ( AString & a_Dst, unsigned int a_Integer);
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static void AppendFloat ( AString & a_Dst, float a_Float);
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static void AppendDouble ( AString & a_Dst, const double & a_Double);
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static void AppendByte ( AString & a_Dst, char a_Byte);
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static void AppendLong ( AString & a_Dst, const long long & a_Long);
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static void AppendBool ( AString & a_Dst, bool a_Bool);
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static void AppendData ( AString & a_Dst, const char * a_Data, unsigned int a_Size);
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};
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typedef std::list <cPacket*> PacketList;
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typedef std::deque<cPacket *> PacketQueue;
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