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/*************** tabzip H Declares Source Code File (.H) ***************/
/* Name: tabzip.h Version 1.0 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2016 */
/* */
/* This file contains the ZIP classe declares. */
/***********************************************************************/
#include "osutil.h"
#include "block.h"
#include "colblk.h"
#include "xtable.h"
#include "unzip.h"
typedef class ZIPDEF *PZIPDEF;
typedef class TDBZIP *PTDBZIP;
typedef class ZIPCOL *PZIPCOL;
/***********************************************************************/
/* ZIP table: display info about a ZIP file. */
/***********************************************************************/
class DllExport ZIPDEF : public DOSDEF { /* Table description */
friend class TDBZIP;
friend class UNZFAM;
public:
// Constructor
ZIPDEF(void) = default;
// Implementation
const char *GetType(void) override {return "ZIP";}
// Methods
bool DefineAM(PGLOBAL g, LPCSTR am, int poff) override;
PTDB GetTable(PGLOBAL g, MODE m) override;
protected:
// Members
PCSZ target; // The inside file to query
}; // end of ZIPDEF
/***********************************************************************/
/* This is the ZIP Access Method class declaration. */
/***********************************************************************/
class DllExport TDBZIP : public TDBASE {
friend class ZIPCOL;
public:
// Constructor
TDBZIP(PZIPDEF tdp);
// Implementation
AMT GetAmType(void) override {return TYPE_AM_ZIP;}
PCSZ GetFile(PGLOBAL) override {return zfn;}
void SetFile(PGLOBAL, PCSZ fn) override {zfn = fn;}
// Methods
PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n) override;
int Cardinality(PGLOBAL g) override;
int GetMaxSize(PGLOBAL g) override;
int GetRecpos(void) override {return 0;}
// Database routines
bool OpenDB(PGLOBAL g) override;
int ReadDB(PGLOBAL g) override;
int WriteDB(PGLOBAL g) override;
int DeleteDB(PGLOBAL g, int irc) override;
void CloseDB(PGLOBAL g) override;
protected:
bool open(PGLOBAL g, const char *filename);
void close(void);
// Members
unzFile zipfile; // The ZIP container file
PCSZ zfn; // The ZIP file name
//PSZ target;
unz_file_info64 finfo; // The current file info
char fn[FILENAME_MAX]; // The current file name
int nexterr; // Next file error
}; // end of class TDBZIP
/***********************************************************************/
/* Class ZIPCOL: ZIP access method column descriptor. */
/***********************************************************************/
class DllExport ZIPCOL : public COLBLK {
friend class TDBZIP;
public:
// Constructors
ZIPCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i, PCSZ am = "ZIP");
// Implementation
int GetAmType(void) override { return TYPE_AM_ZIP; }
// Methods
void ReadColumn(PGLOBAL g) override;
protected:
// Default constructor not to be used
ZIPCOL(void) = default;
// Members
TDBZIP *Tdbz;
int flag;
}; // end of class ZIPCOL
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