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