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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#include "CWriteFile.h"
#include <stdio.h>
namespace irr
{
namespace io
{
CWriteFile::CWriteFile(const io::path& fileName, bool append)
: FileSize(0)
{
#ifdef _DEBUG
setDebugName("CWriteFile");
#endif
Filename = fileName;
openFile(append);
}
CWriteFile::~CWriteFile()
{
if (File)
fclose(File);
}
//! returns if file is open
inline bool CWriteFile::isOpen() const
{
return File != 0;
}
//! returns how much was read
s32 CWriteFile::write(const void* buffer, u32 sizeToWrite)
{
if (!isOpen())
return 0;
return (s32)fwrite(buffer, 1, sizeToWrite, File);
}
//! changes position in file, returns true if successful
//! if relativeMovement==true, the pos is changed relative to current pos,
//! otherwise from begin of file
bool CWriteFile::seek(long finalPos, bool relativeMovement)
{
if (!isOpen())
return false;
return fseek(File, finalPos, relativeMovement ? SEEK_CUR : SEEK_SET) == 0;
}
//! returns where in the file we are.
long CWriteFile::getPos() const
{
return ftell(File);
}
//! opens the file
void CWriteFile::openFile(bool append)
{
if (Filename.size() == 0)
{
File = 0;
return;
}
#if defined(_IRR_WCHAR_FILESYSTEM)
File = _wfopen(Filename.c_str(), append ? L"ab" : L"wb");
#else
File = fopen(Filename.c_str(), append ? "ab" : "wb");
#endif
if (File)
{
// get FileSize
fseek(File, 0, SEEK_END);
FileSize = ftell(File);
fseek(File, 0, SEEK_SET);
}
}
//! returns name of file
const io::path& CWriteFile::getFileName() const
{
return Filename;
}
IWriteFile* createWriteFile(const io::path& fileName, bool append)
{
CWriteFile* file = new CWriteFile(fileName, append);
if (file->isOpen())
return file;
file->drop();
return 0;
}
} // end namespace io
} // end namespace irr
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