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Viewing changes to src/core/copytargetfile.cpp

  • Committer: Bazaar Package Importer
  • Author(s): Anthony Mercatante
  • Date: 2009-01-23 17:57:36 UTC
  • Revision ID: james.westby@ubuntu.com-20090123175736-2ltrhgg3m55dokbm
Tags: upstream-1.0.0~beta1a
ImportĀ upstreamĀ versionĀ 1.0.0~beta1a

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/***************************************************************************
 
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 *   Copyright (C) 2008 by Volker Lanz <vl@fidra.de>                       *
 
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 *                                                                         *
 
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 *   This program is free software; you can redistribute it and/or modify  *
 
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 *   it under the terms of the GNU General Public License as published by  *
 
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 *   the Free Software Foundation; either version 2 of the License, or     *
 
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 *   (at your option) any later version.                                   *
 
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 *                                                                         *
 
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 *   This program is distributed in the hope that it will be useful,       *
 
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 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 
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 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 
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 *   GNU General Public License for more details.                          *
 
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 *                                                                         *
 
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 *   You should have received a copy of the GNU General Public License     *
 
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 *   along with this program; if not, write to the                         *
 
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 *   Free Software Foundation, Inc.,                                       *
 
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 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 
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 ***************************************************************************/
 
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#include "core/copytargetfile.h"
 
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/** Constructs a file to write to.
 
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        @param filename name of the file to write to
 
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        @param sectorsize the "sector size" of the file to write to, usually the sector size of the CopySourceDevice
 
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*/
 
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CopyTargetFile::CopyTargetFile(const QString& filename, qint32 sectorsize) :
 
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        CopyTarget(),
 
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        m_File(filename),
 
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        m_SectorSize(sectorsize)
 
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{
 
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}
 
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/** Opens the file for writing.
 
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        @return true on success
 
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*/
 
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bool CopyTargetFile::open()
 
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{
 
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        return file().open(QIODevice::WriteOnly | QIODevice::Truncate);
 
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}
 
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/** Writes the given number of sectors from the given buffer to the file.
 
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        @param buffer the data to write
 
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        @param writeOffset where in the file to start writing
 
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        @param numSectors the number of sectors to write
 
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        @return true on success
 
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*/
 
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bool CopyTargetFile::writeSectors(void* buffer, qint64 writeOffset, qint64 numSectors)
 
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{
 
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        if (!file().seek(writeOffset * sectorSize()))
 
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                return false;
 
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        bool rval = file().write(static_cast<char*>(buffer), numSectors * sectorSize()) == numSectors * sectorSize();
 
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        if (rval)
 
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                setSectorsWritten(sectorsWritten() + numSectors);
 
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        return rval;
 
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}