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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) 2008-2011 ZenJu (zhnmju123 AT gmx.de) *
// **************************************************************************
//
#ifndef FILEIO_H_INCLUDED
#define FILEIO_H_INCLUDED
#include <wx/stream.h>
#ifdef FFS_WIN
#include <wx/msw/wrapwin.h> //includes "windows.h"
#elif defined FFS_LINUX
#include <cstdio>
#endif
#include "zstring.h"
#include "file_error.h"
namespace ffs3
{
//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(); //end of file reached
private:
#ifdef FFS_WIN
bool eofReached;
#endif
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)
private:
FileHandle fileHandle;
const Zstring filename_;
};
//############# wxWidgets stream adapter #############
// can be used as base classes (have virtual destructors)
class FileInputStream : public wxInputStream
{
public:
FileInputStream(const Zstring& filename) : //throw (FileError)
fileObj(filename) {}
private:
virtual size_t OnSysRead(void* buffer, size_t bufsize) //throw (FileError)
{
return fileObj.read(buffer, bufsize);
}
FileInput fileObj;
};
class FileOutputStream : public wxOutputStream
{
public:
FileOutputStream(const Zstring& filename) : //throw (FileError)
fileObj(filename, FileOutput::ACC_OVERWRITE) {}
private:
virtual size_t OnSysWrite(const void* buffer, size_t bufsize) //throw (FileError)
{
fileObj.write(buffer, bufsize);
return bufsize;
}
FileOutput fileObj;
};
}
#endif // FILEIO_H_INCLUDED
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