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//========================================================================
//
// gfile.h
//
// Miscellaneous file and directory name manipulation.
//
// Copyright 1996-2003 Glyph & Cog, LLC
//
//========================================================================
//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2006 Kristian Høgsberg <krh@redhat.com>
// Copyright (C) 2009, 2011, 2012, 2017, 2018 Albert Astals Cid <aacid@kde.org>
// Copyright (C) 2009 Kovid Goyal <kovid@kovidgoyal.net>
// Copyright (C) 2013 Adam Reichold <adamreichold@myopera.com>
// Copyright (C) 2013, 2017 Adrian Johnson <ajohnson@redneon.com>
// Copyright (C) 2014 Bogdan Cristea <cristeab@gmail.com>
// Copyright (C) 2014 Peter Breitenlohner <peb@mppmu.mpg.de>
// Copyright (C) 2017 Christoph Cullmann <cullmann@kde.org>
// Copyright (C) 2017 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2018 Mojca Miklavec <mojca@macports.org>
// Copyright (C) 2019 Christian Persch <chpe@src.gnome.org>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================
#ifndef GFILE_H
#define GFILE_H
#include "poppler-config.h"
#include <cstdio>
#include <cstdlib>
#include <cstddef>
#include <ctime>
extern "C" {
#if defined(_WIN32)
# include <sys/stat.h>
# ifdef FPTEX
# include <win32lib.h>
# else
# ifndef NOMINMAX
# define NOMINMAX
# endif
# include <windows.h>
# endif
#else
# include <unistd.h>
# include <sys/types.h>
# if defined(HAVE_DIRENT_H)
# include <dirent.h>
# define NAMLEN(d) strlen((d)->d_name)
# else
# define dirent direct
# define NAMLEN(d) (d)->d_namlen
# ifdef HAVE_SYS_NDIR_H
# include <sys/ndir.h>
# endif
# ifdef HAVE_SYS_DIR_H
# include <sys/dir.h>
# endif
# ifdef HAVE_NDIR_H
# include <ndir.h>
# endif
# endif
#endif
}
class GooString;
/* Integer type for all file offsets and file sizes */
typedef long long Goffset;
//------------------------------------------------------------------------
// Append a file name to a path string. <path> may be an empty
// string, denoting the current directory). Returns <path>.
extern GooString *appendToPath(GooString *path, const char *fileName);
#ifndef _WIN32
// Open a file descriptor
// Could be implemented on WIN32 too, but the only external caller of
// this function is not used on WIN32
extern int openFileDescriptor(const char *path, int flags);
#endif
// Open a file. On Windows, this converts the path from UTF-8 to
// UCS-2 and calls _wfopen (if available). On other OSes, this simply
// calls fopen.
extern FILE *openFile(const char *path, const char *mode);
// Just like fgets, but handles Unix, Mac, and/or DOS end-of-line
// conventions.
extern char *getLine(char *buf, int size, FILE *f);
// Like fseek/ftell but uses platform specific variants that support large files
extern int Gfseek(FILE *f, Goffset offset, int whence);
extern Goffset Gftell(FILE *f);
// Largest offset supported by Gfseek/Gftell
extern Goffset GoffsetMax();
//------------------------------------------------------------------------
// GooFile
//------------------------------------------------------------------------
class GooFile
{
public:
GooFile(const GooFile &) = delete;
GooFile &operator=(const GooFile &other) = delete;
int read(char *buf, int n, Goffset offset) const;
Goffset size() const;
static GooFile *open(const GooString *fileName);
#ifdef _WIN32
static GooFile *open(const wchar_t *fileName);
~GooFile() { CloseHandle(handle); }
// Asuming than on windows you can't change files that are already open
bool modificationTimeChangedSinceOpen() const;
private:
GooFile(HANDLE handleA);
HANDLE handle;
struct _FILETIME modifiedTimeOnOpen;
#else
~GooFile() { close(fd); }
bool modificationTimeChangedSinceOpen() const;
private:
GooFile(int fdA);
int fd;
struct timespec modifiedTimeOnOpen;
#endif // _WIN32
};
#endif
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