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deb-goldedplus/goldlib/gall/gfile.cpp

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2000-02-25 10:15:17 +00:00
// This may look like C code, but it is really -*- C++ -*-
// ------------------------------------------------------------------
// The Goldware Library
// Copyright (C) 1990-1999 Odinn Sorensen
// Copyright (C) 1999-2000 Alexander S. Aganichev
// ------------------------------------------------------------------
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this program; if not, write to the Free
// Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
// MA 02111-1307, USA
// ------------------------------------------------------------------
// $Id$
// ------------------------------------------------------------------
// File I/O class.
// ------------------------------------------------------------------
#include <cerrno>
#include <cstdarg>
#include <gfile.h>
// ------------------------------------------------------------------
gfile::gfile() {
fh = -1;
fp = NULL;
status = EBADF;
}
// ------------------------------------------------------------------
gfile::gfile(int __fh) {
fh = __fh;
fp = NULL;
status = 0;
}
// ------------------------------------------------------------------
gfile::gfile(FILE* __fp) {
fh = -1;
fp = __fp;
status = 0;
}
// ------------------------------------------------------------------
gfile::gfile(const char* __path, int __access, int __shflag, int __mode) {
open(__path, __access, __shflag, __mode);
}
// ------------------------------------------------------------------
gfile::gfile(const char* __path, const char* __mode, int __shflag) {
fopen(__path, __mode, __shflag);
}
// ------------------------------------------------------------------
gfile::~gfile() {
if(fp != NULL)
fclose();
if(fh != -1)
close();
}
// ------------------------------------------------------------------
int gfile::okay() {
return !status;
}
// ------------------------------------------------------------------
int gfile::isopen() {
if((fh != -1) or (fp != NULL))
return true;
return false;
}
// ------------------------------------------------------------------
int gfile::setfh(int __fh) {
fh = __fh;
status = 0;
return fh;
}
// ------------------------------------------------------------------
FILE* gfile::setfp(FILE* __fp) {
fp = __fp;
status = 0;
return fp;
}
// ------------------------------------------------------------------
int gfile::open(const char* __path, int __access, int __shflag, int __mode) {
fh = ::sopen(__path, __access, __shflag, __mode);
status = (fh == -1) ? errno : 0;
return fh;
}
// ------------------------------------------------------------------
int gfile::open(const char* __path, int __access, char* __fmode, int __shflag, int __mode) {
open(__path, __access, __shflag, __mode);
fdopen(__fmode);
return fh;
}
// ------------------------------------------------------------------
int gfile::close() {
if(fp)
return fclose();
int _ret = ::close(fh);
status = _ret ? errno : 0;
fh = -1;
return _ret;
}
// ------------------------------------------------------------------
int gfile::read(void* __ptr, size_t __len) {
int _ret = ::read(fh, __ptr, (unsigned)__len);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::write(void* __ptr, size_t __len) {
int _ret = ::write(fh, __ptr, (unsigned)__len);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
long gfile::tell() {
long _ret = ::tell(fh);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
long gfile::lseek(long __offset, int __direction) {
long _ret = ::lseek(fh, __offset, __direction);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
long gfile::filelength() {
long _ret = ::filelength(fh);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::chsize(long __size) {
int _ret = ::chsize(fh, __size);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::lock(long __offset, long __len) {
int _ret = ::lock(fh, __offset, __len);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::unlock(long __offset, long __len) {
int _ret = ::unlock(fh, __offset, __len);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::eof() {
int _ret = ::eof(fh);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::getftime(dword* __ftime) {
struct stat s;
if(fp)
fflush();
int rv = fstat (fh, &s);
status = (rv) ? errno : 0;
if(rv == 0)
*__ftime = gfixstattime(s.st_mtime);
else
__ftime = 0;
return rv;
}
// ------------------------------------------------------------------
FILE* gfile::fopen(const string& __path, const char* __mode, int __shflag) {
return fopen(__path.c_str(), __mode, __shflag);
}
// ------------------------------------------------------------------
FILE* gfile::fopen(const char* __path, const char* __mode, int __shflag) {
fp = ::fsopen(__path, __mode, __shflag);
status = (fp == NULL) ? errno : 0;
if(fp)
fh = fileno(fp);
return fp;
}
// ------------------------------------------------------------------
FILE* gfile::fdopen(char* __mode) {
fp = ::fdopen(fh, __mode);
status = fp ? 0 : errno;
if(fp)
fh = fileno(fp);
return fp;
}
// ------------------------------------------------------------------
int gfile::fclose() {
int _ret = 0;
if(fp)
_ret = ::fclose(fp);
status = _ret ? errno : 0;
fp = NULL;
fh = -1;
return _ret;
}
// ------------------------------------------------------------------
size_t gfile::fread(void* __ptr, size_t __size, size_t __items) {
size_t _ret = ::fread(__ptr, __size, __items, fp);
status = ferror_() ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
size_t gfile::fwrite(const void* __ptr, size_t __size, size_t __items) {
size_t _ret = ::fwrite(__ptr, __size, __items, fp);
status = (_ret < __items) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::fgetc() {
int _ret = ::fgetc(fp);
status = ferror_() ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::fputc(int __ch) {
int _ret = ::fputc(__ch, fp);
status = ferror_() ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
char* gfile::fgets(char* __str, size_t __len) {
char* _ret = ::fgets(__str, __len, fp);
status = (_ret == NULL) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::fputs(const char* __str) {
int _ret = ::fputs(__str, fp);
status = (_ret == EOF) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::printf(const char* __format, ...) {
va_list _argptr;
va_start(_argptr, __format);
int _outcount = ::vfprintf(fp, __format, _argptr);
va_end(_argptr);
return _outcount;
}
// ------------------------------------------------------------------
int gfile::fflush() {
int _ret = ::fflush(fp);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
long gfile::ftell() {
long _ret = ::ftell(fp);
status = (_ret == -1) ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::fseek(long __offset, int __direction) {
int _ret = ::fseek(fp, __offset, __direction);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
int gfile::setvbuf(char* __buf, int __type, size_t __size) {
int _ret = ::setvbuf(fp, __buf, __type, __size);
status = _ret ? errno : 0;
return _ret;
}
// ------------------------------------------------------------------
#ifdef __GOLDWARE_HAS_BOOL
gfile& gfile::operator>> (bool& i) { fread(&i, sizeof(bool)); return *this; }
#endif
gfile& gfile::operator>> (unsigned char& i) { fread(&i, sizeof(unsigned char)); return *this; }
gfile& gfile::operator>> (unsigned short& i) { fread(&i, sizeof(unsigned short)); return *this; }
gfile& gfile::operator>> (unsigned int& i) { unsigned int ii; fread(&ii, sizeof(unsigned int)); i = ii; return *this; }
gfile& gfile::operator>> (unsigned long& i) { fread(&i, sizeof(unsigned long)); return *this; }
#ifdef __GOLDWARE_HAS_BOOL
gfile& gfile::operator<< (bool o) { fwrite(&o, sizeof(o)); return *this; }
#endif
gfile& gfile::operator<< (unsigned char o) { fwrite(&o, sizeof(o)); return *this; }
gfile& gfile::operator<< (unsigned short o) { fwrite(&o, sizeof(o)); return *this; }
gfile& gfile::operator<< (unsigned int o) { fwrite(&o, sizeof(o)); return *this; }
gfile& gfile::operator<< (unsigned long o) { fwrite(&o, sizeof(o)); return *this; }
// ------------------------------------------------------------------