/Users/eddyxu/work/quiplib/ace/srcs/Packets.h

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//-*- C++ -*-
//--------------------------------------------------------------
//---------------------------------------------------------------


#ifndef QLIB_ACE_PACKET_H
#define QLIB_ACE_PACKET_H

#include <string>

#include <ace/Basic_Types.h>

// forward delariation
class ACE_Message_Block;

namespace qlib {

        namespace ace {
                class Qlib_Packet; 
                
                class Packet_Factory {
                public: 
                        enum Packet_Type { UNKNOWN_PACKET, XML_PACKET, DATA_PACKET };
                        typedef Packet_Type packet_type;
                public:
                        static Qlib_Packet* create();
                private:
                        Packet_Factory();
                        ~Packet_Factory();
                };

                template<
                        char * sign = "qlib",
                        size_t sign_len = 4
                        >
                class Packet_Header {
                public:
                        enum TYPE { UNKOWN_PACKET, XML_PACKET, DATA_PACKET };
                        typedef TYPE packet_type; 
                        
                        Packet_Header();
                        Packet_Header(ACE_UINT16 ver, packet_type pt, ACE_UINT64 len);

                public:
                        int parse(const void *buffer, ACE_UINT64 len);
                        int parse(ACE_Message_Block *mb, ACE_UINT64 len);

                        packet_type type(void) { return type_; }
                        ACE_UINT16 version(void) { return version_; }
                        ACE_UINT64 length(void) { return length_; }

                        ACE_Message_Block *to_mb(void);
                        ACE_UINT64 *to_buffer(void *buffer);
                private:                
                        ACE_UINT16 version_;    
                        ACE_UINT64 length_;
                        packet_type type_;
                };

                class XML_Body {
                
                };

                class Data_Body {
                
                };

                class XML_Packet {
                
                };

                class Data_Packet {
                
                };

        } // ace

}// qlib

#endif /* QLIB_ACE_PACKET_H */

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