133 lines
3.2 KiB
C++
Executable File
133 lines
3.2 KiB
C++
Executable File
#ifndef __FILES_H
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#define __FILES_H
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#ifndef __OBJECT_H
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#include <object.h>
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#endif
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#ifndef __EXTCTYPE_H
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#include <extctype.h>
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#endif
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#ifndef __RECTYPES_H
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#include <rectypes.h>
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#endif
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// @C
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// Classe TFile : public TObject
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//
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// Il file. I suoi metodi comprendono tutte le procedure per l'accesso
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// fisico di basso livello ai file.
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//
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// @END
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class TFile : public TObject
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{
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// @DPRIV
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SecDef* _file;
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int _len;
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int _base;
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public:
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// @FPUB
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void open(const char* name, TFilelock lockmode = _manulock);
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bool verify(const char* name);
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void create(const char* name, TRecnotype nrecord = 10);
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void chsize(const char* name, TRecnotype nrecord);
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void close();
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void unlink(const char* name);
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void read(char* record, TRecnotype recnum, TReclock lock = _nolock);
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void write(char* record, TRecnotype recnum, TReclock lock = _nolock);
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int status() const ;
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int& base() { return _base; }
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int& len() { return _len; }
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bool ok() const { return status() == NOERR; }
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bool error() const { return status() != NOERR; }
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TFile(int lenrec = 0, int base = 0);
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virtual ~TFile();
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};
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// @C
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// Classe TDir : public TObject
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//
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// @END
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class TDir : public TObject
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{
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// @DPRIV
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FileDes* _dir;
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int _num;
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public:
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// @FPUB
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void get(int nfile, TReclock lock = _nolock, TDirtype dirtype = _nordir, TDirop op = _nordirop);
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void put(int nfile, TDirtype dirtype = _nordir, TDirop op = _nordirop);
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void zero();
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void set_eox(const RecNoType eox);
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void set_len(const UINT16 len);
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void set (const char * name, const RecNoType eod, const RecNoType flag, const char * des, const char * calc);
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const char* name() const;
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const char* des() const;
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const char* expr() const;
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TRecnotype& eod() const;
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TRecnotype& eox() const;
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TRecnotype& flags() const;
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word& len();
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int status(TDirtype dirtype = _nordir) const ;
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int num() const { return _num;}
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int items(TDirtype dirtype = _nordir) const;
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FileDes* filedesc() const { return _dir; }
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TDir();
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virtual ~TDir();
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};
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// @C
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// Classe TTrec : public TObject
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//
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// @END
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class TTrec : public TSortable
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{
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// @DPRIV
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RecDes* _rec;
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int _num;
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protected:
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int compare(const TSortable& a) const;
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public:
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// @FPUB
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void get(int nfile, TDirtype dirtype = _nordir);
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void put(int nfile, TDirtype dirtype = _nordir);
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void zero();
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void rehash();
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int status(TDirtype dirtype = _nordir) const ;
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int num() const { return _num;}
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int field(const char* fieldname) const;
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RecDes* rec() const { return _rec;}
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TTrec& operator =(const TTrec& b);
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int fields() const { return _rec->NFields; }
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int keys() const { return _rec->NKeys; }
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void set_fields(int nfields) { _rec->NFields = nfields;}
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void set_keys(int nkeys) { _rec->NKeys = nkeys;}
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const char* fielddef(int fld) const; // ritorna una token string
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const char* keydef(int key) const;
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int len() const { return _rec->Fd[fields() - 1].RecOff +
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_rec->Fd[fields() - 1].Len; }
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#ifndef FOXPRO
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void update_keydef(int key, const char* desc); //desc e' una token string
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void update_fielddef(int nfld, const char* desc); //desc e' una token string
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virtual void print_on(ostream& out) const;
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virtual void read_from(istream& in);
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#endif
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TTrec();
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virtual ~TTrec();
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};
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#endif // __FILES_H
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