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gbfile.h
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gbfile.h
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/*
Common GPSBabel file I/O API
Copyright (C) 2006,2007,2008 Olaf Klein, [email protected]
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef GBFILE_H
#define GBFILE_H
#include <QByteArray> // for QByteArray
#include <QString> // for QString
#include <cstdint> // for int32_t, int16_t, uint32_t
#include <cstdio> // for FILE
#if HAVE_LIBZ
#include <zlib.h>
#elif !ZLIB_INHIBITED
#include "zlib.h"
#endif
struct gbfile;
using gbsize_t = uint32_t;
using gbfclearerr_cb = void (*)(gbfile* self);
using gbfclose_cb = int (*)(gbfile* self);
using gbfeof_cb = int (*)(gbfile* self);
using gbferror_cb = int (*)(gbfile* self);
using gbfflush_cb = int (*)(gbfile* self);
using gbfopen_cb = gbfile* (*)(gbfile* self, const char* mode);
using gbfread_cb = gbsize_t (*)(void* buf, const gbsize_t size, const gbsize_t members, gbfile* self);
using gbfseek_cb = int (*)(gbfile* self, int32_t offset, int whence);
using gbftell_cb = gbsize_t (*)(gbfile* self);
using gbfwrite_cb = gbsize_t (*)(const void* buf, const gbsize_t size, const gbsize_t members, gbfile* self);
using gbfungetc_cb = int (*)(const int c, gbfile* self);
struct gbfile {
union {
FILE* std;
unsigned char* mem;
#if !ZLIB_INHIBITED
gzFile gz;
#endif
} handle;
char* name;
char* module;
char* buff; /* static growing buffer, primary used by gbprintf */
int buffsz;
char mode;
int back;
gbsize_t mempos; /* curr. position in memory */
gbsize_t memlen; /* max. number of written bytes to memory */
gbsize_t memsz; /* curr. size of allocated memory */
unsigned char big_endian:1;
unsigned char binary:1;
unsigned char gzapi:1;
unsigned char memapi:1;
unsigned char unicode:1;
unsigned char unicode_checked:1;
unsigned char is_pipe:1;
gbfclearerr_cb fileclearerr;
gbfclose_cb fileclose;
gbfeof_cb fileeof;
gbferror_cb fileerror;
gbfflush_cb fileflush;
gbfopen_cb fileopen;
gbfread_cb fileread;
gbfseek_cb fileseek;
gbftell_cb filetell;
gbfungetc_cb fileungetc;
gbfwrite_cb filewrite;
};
gbfile* gbfopen(const QString& filename, const char* mode, const char* module);
gbfile* gbfopen_be(const QString& filename, const char* mode, const char* module);
inline gbfile* gbfopen_le(const QString& filename, const char* mode, const char* module)
{
return gbfopen(filename, mode, module);
}
void gbfclose(gbfile* file);
gbsize_t gbfread(void* buf, gbsize_t size, gbsize_t members, gbfile* file);
gbsize_t gbfread(QString& buf, gbsize_t size, gbsize_t members, gbfile* file);
// Convenience wrapper for above, but ignoring the possibility of endian swapping.
QByteArray gbfreadbuf(gbsize_t size, gbfile* file);
int gbfgetc(gbfile* file);
QString gbfgets(char* buf, int len, gbfile* file);
int gbvfprintf(gbfile* file, const char* format, va_list ap);
int gbfprintf(gbfile* file, const char* format, ...);
int gbfputc(int c, gbfile* file);
int gbfputs(const QString& s, gbfile* file);
int gbfwrite(const void* buf, gbsize_t size, gbsize_t members, gbfile* file);
int gbfflush(gbfile* file);
void gbfclearerr(gbfile* file);
int gbferror(gbfile* file);
void gbfrewind(gbfile* file);
int gbfseek(gbfile* file, int32_t offset, int whence);
gbsize_t gbftell(gbfile* file);
int gbfeof(gbfile* file);
int gbfungetc(int c, gbfile* file);
int32_t gbfgetint32(gbfile* file);
inline uint32_t gbfgetuint32(gbfile* file)
{
return gbfgetint32(file);
}
int16_t gbfgetint16(gbfile* file);
inline uint16_t gbfgetuint16(gbfile* file)
{
return gbfgetint16(file);
}
double gbfgetdbl(gbfile* file); // read a double value
float gbfgetflt(gbfile* file); // read a float value
char* gbfgetstr(gbfile* file); // read until any type of line-breaks or EOF
QString gbfgetpstr(gbfile* file); // read a pascal string
QString gbfgetcstr(gbfile* file); // read a null terminated string
QByteArray gbfgetnativecstr(gbfile* file); // read a null terminated string
char* gbfgetcstr_old(gbfile* file); // read a null terminated string
int gbfputint16(int16_t i, gbfile* file);
inline int gbfputuint16(uint16_t i, gbfile* file)
{
return gbfputint16(i, file);
}
int gbfputint32(int32_t i, gbfile* file);
inline int gbfputuint32(uint32_t i, gbfile* file)
{
return gbfputint32(i, file);
}
int gbfputdbl(double d, gbfile* file); // write a double value
int gbfputflt(float f, gbfile* file); // write a float value
int gbfputcstr(const char* s, gbfile* file); // write string including '\0'
int gbfputpstr(const QString& s, gbfile* file); // write as pascal string
gbsize_t gbfcopyfrom(gbfile* file, gbfile* src, gbsize_t count);
#endif