203 lines
7.3 KiB
C++
203 lines
7.3 KiB
C++
// This may look like C code, but it is really -*- C++ -*-
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// ------------------------------------------------------------------
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// The Goldware Library
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// Copyright (C) 1990-1999 Odinn Sorensen
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// Copyright (C) 1999-2000 Alexander S. Aganichev
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// ------------------------------------------------------------------
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this program; if not, write to the Free
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// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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// MA 02111-1307, USA
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// ------------------------------------------------------------------
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// $Id$
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// ------------------------------------------------------------------
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// File I/O class.
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// ------------------------------------------------------------------
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#ifndef __gfilbase_h
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#define __gfilbase_h
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// ------------------------------------------------------------------
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#include <gfilutil.h>
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// ------------------------------------------------------------------
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// An invalid path/filename
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#define GFILE_INVALID "::INVALID::"
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// ------------------------------------------------------------------
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// Stream/Unix-style file I/O class
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class gfile
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{
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public:
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// ----------------------------------------------------------------
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// Internal variables
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int fh; // File handle for Unix I/O
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FILE* fp; // File pointer for ANSI stream I/O
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// --------------------------------------------------------------
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// State variables
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int status; // Contains last errno value
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// --------------------------------------------------------------
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// Handy utility functions
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int okay() { return (0 == status); }
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bool isopen(); // true if the file is open
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operator bool() { return isopen(); }
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// --------------------------------------------------------------
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// Constructors and destructor
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gfile(); // Bare constructor
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// gfile(int __fh); // Construct from Unix file handle
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// gfile(FILE* __fp); // Construct from ANSI stream pointer
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gfile(const char* __path, int __access, int __shflag=SH_DENYNO, int __mode=S_STDRW);
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gfile(const char* __path, const char* __mode, int __shflag=SH_DENYNO);
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~gfile(); // Destructor (closes file)
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// --------------------------------------------------------------
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// Set file handle or stream pointer
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int setfh(int __fh);
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FILE* setfp(FILE* __fp);
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// --------------------------------------------------------------
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// UNIX-style raw I/O
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int Open (const char* __path, int __access, int __shflag=SH_DENYNO, int __mode=S_STDRW);
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int Open (const char* __path, int __access, const char* __fmode, int __shflag=SH_DENYNO, int __mode=S_STDRW);
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int Close ();
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int Read (void* __ptr, size_t __len);
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int Write (void* __ptr, size_t __len);
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long Tell ();
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long Lseek (long __offset, int __direction);
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long Lseek (long __record, long __recordsize, int __direction) { return Lseek(__record*__recordsize, __direction); }
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long LseekSet (long __record, long __recordsize = 1) { return Lseek(__record*__recordsize, SEEK_SET); }
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long FileLength ();
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int ChSize (long __size);
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int Lock (long __offset, long __len);
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int Unlock (long __offset, long __len);
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int GetFTime (dword* __ftime);
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// --------------------------------------------------------------
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// ANSI-style streaming buffered I/O
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FILE* Fopen (const char* __path, const char* __mode, int __shflag=SH_DENYNO);
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FILE* Fopen (const std::string& __path, const char* __mode, int __shflag=SH_DENYNO) { return Fopen(__path.c_str(), __mode, __shflag); }
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FILE* Fdopen (const char* __mode);
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int Fclose ();
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FILE* Popen (const char* __path, const char* __mode);
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FILE* Popen (const std::string& __path, const char* __mode) { return Popen(__path.c_str(), __mode); }
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int Pclose ();
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size_t Fread (void* __ptr, size_t __size, size_t __items=1);
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size_t Fwrite (const void* __ptr, size_t __size, size_t __items=1);
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int Fgetc ();
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int Fputc (int __ch);
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char* Fgets (char* __str, size_t __len);
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int Fputs (const char* __str);
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int Printf (const char* __format, ...) __attribute__ ((format (printf, 2, 3)));
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int Fflush ();
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long Ftell ();
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int Fseek (long __offset, int __direction);
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int Fseek (long __record, long __recordsize, int __direction) { return Fseek(__record*__recordsize, __direction); }
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int FseekSet(long __record, long __recordsize = 1) { return Fseek(__record*__recordsize, SEEK_SET); }
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void Rewind () { rewind(fp); }
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int SetvBuf (char* __buf=NULL, int __type=_IOFBF, size_t __size=8192);
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int SetvBuf (size_t __size) { return SetvBuf(NULL, _IOFBF, __size); }
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int feof_ () { return feof(fp); }
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int ferror_ () { return ferror(fp); }
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// ----------------------------------------------------------------
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#ifdef __GOLDWARE_HAS_BOOL
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gfile& operator>> (bool& i) { Fread(&i, sizeof(bool)); return *this; }
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#endif
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gfile& operator>> (uint8_t& i) { Fread(&i, sizeof(uint8_t)); return *this; }
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gfile& operator>> (uint16_t& i) { Fread(&i, sizeof(uint16_t)); return *this; }
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gfile& operator>> (uint32_t& i) { Fread(&i, sizeof(uint32_t)); return *this; }
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#if !defined(__CYGWIN__)
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gfile& operator>> (unsigned long& i) { Fread(&i, sizeof(unsigned long)); return *this; }
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#endif
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gfile& operator>> (char& i) { return operator>>((uint8_t&)i); }
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#if !defined(__SUNOS__)
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gfile& operator>> (int8_t& i) { return operator>>((uint8_t&)i); }
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#endif
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gfile& operator>> (int16_t& i) { return operator>>((uint16_t&)i); }
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gfile& operator>> (int32_t& i) { return operator>>((uint32_t&)i); }
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#if !defined(__CYGWIN__)
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gfile& operator>> (long& i) { return operator>>((unsigned long&)i); }
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#endif
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#ifdef __GOLDWARE_HAS_BOOL
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gfile& operator<< (bool o) { Fwrite(&o, sizeof(o)); return *this; }
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#endif
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gfile& operator<< (uint8_t o) { Fwrite(&o, sizeof(o)); return *this; }
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gfile& operator<< (uint16_t o) { Fwrite(&o, sizeof(o)); return *this; }
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gfile& operator<< (uint32_t o) { Fwrite(&o, sizeof(o)); return *this; }
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#if !defined(__CYGWIN__)
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gfile& operator<< (unsigned long o) { Fwrite(&o, sizeof(o)); return *this; }
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#endif
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gfile& operator<< (char o) { return operator<<((uint8_t )o); }
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#if !defined(__SUNOS__)
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gfile& operator<< (int8_t o) { return operator<<((uint8_t )o); }
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#endif
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gfile& operator<< (int16_t o) { return operator<<((uint16_t)o); }
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gfile& operator<< (int32_t o) { return operator<<((uint32_t)o); }
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#if !defined(__CYGWIN__)
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gfile& operator<< (long o) { return operator<<((unsigned long)o); }
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#endif
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};
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// ------------------------------------------------------------------
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#endif
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// ------------------------------------------------------------------
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