Home Conference 2005 Order Boxed Set Product Download VU Training FAQ Press and News Docs and Papers Partner Help Team     register/help User Name: Password: Login	ODB.H Go to the documentation of this file. //Filename : ODB.H //Description : Header file of ODB.CPP object Database #ifndef __ODB_H #define __ODB_H #ifndef __OFILE_H #include <OFILE.H> #endif //-------- Define class Database ------------// class Database : public File { private: struct DbfHeader { char dbf_id; char last_update[3]; long last_rec; unsigned short data_offset; unsigned short rec_size; }; struct DbfRec { char field_name[11]; char field_type; long dummy[4]; union { unsigned char_len; struct { char len; char dec; } num_size; }len_info; char filler[14]; }; private: DbfHeader dbf_header; char* rec_buf; long cur_recno; long last_read_recno; char* dbf_buf; // buffer for reading in the whole dbf char dbf_buf_allocated; // whether we allocated the buffer or only take from extern pointer public: Database(char* =0, int=0); ~Database(); void open(char*, int=0); void open_from_buf(char*); char* read(long=0); void go(long recNo) { cur_recno=recNo; } void close(); long rec_count() { return dbf_header.last_rec; } long recno() { return cur_recno; } }; //----------------------------------------------// //extern Database db_movie_hdr, db_movie_dtl; //----------------------------------------------// #endif
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