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// **************************************************************************
// * This file is part of the FreeFileSync project. It is distributed under *
// * GNU General Public License: http://www.gnu.org/licenses/gpl.html *
// * Copyright (C) ZenJu (zenju AT gmx DOT de) - All Rights Reserved *
// **************************************************************************
#ifndef FILEIO_H_INCLUDED
#define FILEIO_H_INCLUDED
#ifdef FFS_WIN
#include "win.h" //includes "windows.h"
#elif defined FFS_LINUX
#include <cstdio>
#endif
#include "zstring.h"
#include "file_error.h"
namespace zen
{
#ifdef FFS_WIN
static const char LINE_BREAK[] = "\r\n";
#elif defined FFS_LINUX
static const char LINE_BREAK[] = "\n";
#endif
//file IO optimized for sequential read/write accesses + better error reporting + long path support (following symlinks)
#ifdef FFS_WIN
typedef HANDLE FileHandle;
#elif defined FFS_LINUX
typedef FILE* FileHandle;
#endif
class FileInput
{
public:
FileInput(const Zstring& filename); //throw FileError, ErrorNotExisting
FileInput(FileHandle handle, const Zstring& filename); //takes ownership!
~FileInput();
size_t read(void* buffer, size_t bytesToRead); //throw FileError; returns actual number of bytes read
bool eof() { return eofReached; } //end of file reached
const Zstring& getFilename() const { return filename_; }
private:
FileInput(const FileInput&);
FileInput& operator=(const FileInput&);
bool eofReached;
FileHandle fileHandle;
const Zstring filename_;
};
class FileOutput
{
public:
enum AccessFlag
{
ACC_OVERWRITE,
ACC_CREATE_NEW
};
FileOutput(const Zstring& filename, AccessFlag access); //throw FileError, ErrorTargetPathMissing, ErrorTargetExisting
FileOutput(FileHandle handle, const Zstring& filename); //takes ownership!
~FileOutput();
void write(const void* buffer, size_t bytesToWrite); //throw FileError
const Zstring& getFilename() const { return filename_; }
private:
FileOutput(const FileOutput&);
FileOutput& operator=(const FileOutput&);
FileHandle fileHandle;
const Zstring filename_;
};
}
#endif // FILEIO_H_INCLUDED
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