1 /*************** tabzip H Declares Source Code File (.H) ***************/ 2 /* Name: tabzip.h Version 1.0 */ 3 /* */ 4 /* (C) Copyright to the author Olivier BERTRAND 2016 */ 5 /* */ 6 /* This file contains the ZIP classe declares. */ 7 /***********************************************************************/ 8 #include "osutil.h" 9 #include "block.h" 10 #include "colblk.h" 11 #include "xtable.h" 12 #include "unzip.h" 13 14 typedef class ZIPDEF *PZIPDEF; 15 typedef class TDBZIP *PTDBZIP; 16 typedef class ZIPCOL *PZIPCOL; 17 18 /***********************************************************************/ 19 /* ZIP table: display info about a ZIP file. */ 20 /***********************************************************************/ 21 class DllExport ZIPDEF : public DOSDEF { /* Table description */ 22 friend class TDBZIP; 23 friend class UNZFAM; 24 public: 25 // Constructor ZIPDEF(void)26 ZIPDEF(void) {} 27 28 // Implementation GetType(void)29 virtual const char *GetType(void) {return "ZIP";} 30 31 // Methods 32 virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff); 33 virtual PTDB GetTable(PGLOBAL g, MODE m); 34 35 protected: 36 // Members 37 PCSZ target; // The inside file to query 38 }; // end of ZIPDEF 39 40 /***********************************************************************/ 41 /* This is the ZIP Access Method class declaration. */ 42 /***********************************************************************/ 43 class DllExport TDBZIP : public TDBASE { 44 friend class ZIPCOL; 45 public: 46 // Constructor 47 TDBZIP(PZIPDEF tdp); 48 49 // Implementation GetAmType(void)50 virtual AMT GetAmType(void) {return TYPE_AM_ZIP;} GetFile(PGLOBAL)51 virtual PCSZ GetFile(PGLOBAL) {return zfn;} SetFile(PGLOBAL,PCSZ fn)52 virtual void SetFile(PGLOBAL, PCSZ fn) {zfn = fn;} 53 54 // Methods 55 virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n); 56 virtual int Cardinality(PGLOBAL g); 57 virtual int GetMaxSize(PGLOBAL g); GetRecpos(void)58 virtual int GetRecpos(void) {return 0;} 59 60 // Database routines 61 virtual bool OpenDB(PGLOBAL g); 62 virtual int ReadDB(PGLOBAL g); 63 virtual int WriteDB(PGLOBAL g); 64 virtual int DeleteDB(PGLOBAL g, int irc); 65 virtual void CloseDB(PGLOBAL g); 66 67 protected: 68 bool open(PGLOBAL g, const char *filename); 69 void close(void); 70 71 // Members 72 unzFile zipfile; // The ZIP container file 73 PCSZ zfn; // The ZIP file name 74 //PSZ target; 75 unz_file_info64 finfo; // The current file info 76 char fn[FILENAME_MAX]; // The current file name 77 int nexterr; // Next file error 78 }; // end of class TDBZIP 79 80 /***********************************************************************/ 81 /* Class ZIPCOL: ZIP access method column descriptor. */ 82 /***********************************************************************/ 83 class DllExport ZIPCOL : public COLBLK { 84 friend class TDBZIP; 85 public: 86 // Constructors 87 ZIPCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i, PCSZ am = "ZIP"); 88 89 // Implementation GetAmType(void)90 virtual int GetAmType(void) { return TYPE_AM_ZIP; } 91 92 // Methods 93 virtual void ReadColumn(PGLOBAL g); 94 95 protected: 96 // Default constructor not to be used ZIPCOL(void)97 ZIPCOL(void) {} 98 99 // Members 100 TDBZIP *Tdbz; 101 int flag; 102 }; // end of class ZIPCOL 103