mirror of https://github.com/aria2/aria2
153 lines
4.1 KiB
C++
153 lines
4.1 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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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 Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "AbstractSingleDiskAdaptor.h"
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#include "File.h"
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#include "AdaptiveFileAllocationIterator.h"
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#include "DiskWriter.h"
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#include "FileEntry.h"
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#ifdef HAVE_SOME_FALLOCATE
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# include "FallocFileAllocationIterator.h"
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#endif // HAVE_SOME_FALLOCATE
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namespace aria2 {
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AbstractSingleDiskAdaptor::AbstractSingleDiskAdaptor():
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totalLength_(0), readOnly_(false) {}
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AbstractSingleDiskAdaptor::~AbstractSingleDiskAdaptor() {}
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void AbstractSingleDiskAdaptor::initAndOpenFile()
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{
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diskWriter_->initAndOpenFile(totalLength_);
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}
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void AbstractSingleDiskAdaptor::openFile()
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{
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diskWriter_->openFile(totalLength_);
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}
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void AbstractSingleDiskAdaptor::closeFile()
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{
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diskWriter_->closeFile();
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}
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void AbstractSingleDiskAdaptor::openExistingFile()
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{
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diskWriter_->openExistingFile(totalLength_);
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}
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void AbstractSingleDiskAdaptor::writeData
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(const unsigned char* data, size_t len, off_t offset)
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{
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diskWriter_->writeData(data, len, offset);
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}
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ssize_t AbstractSingleDiskAdaptor::readData
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(unsigned char* data, size_t len, off_t offset)
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{
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return diskWriter_->readData(data, len, offset);
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}
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bool AbstractSingleDiskAdaptor::fileExists()
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{
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return File(getFilePath()).exists();
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}
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off_t AbstractSingleDiskAdaptor::size()
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{
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return File(getFilePath()).size();
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}
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void AbstractSingleDiskAdaptor::truncate(off_t length)
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{
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diskWriter_->truncate(length);
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}
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SharedHandle<FileAllocationIterator>
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AbstractSingleDiskAdaptor::fileAllocationIterator()
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{
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#ifdef HAVE_SOME_FALLOCATE
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if(doesFallocate()) {
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SharedHandle<FallocFileAllocationIterator> h
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(new FallocFileAllocationIterator
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(diskWriter_.get(), size() ,totalLength_));
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return h;
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} else
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#endif // HAVE_SOME_FALLOCATE
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{
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SharedHandle<AdaptiveFileAllocationIterator> h
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(new AdaptiveFileAllocationIterator
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(diskWriter_.get(), size(), totalLength_));
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return h;
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}
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}
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void AbstractSingleDiskAdaptor::enableReadOnly()
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{
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diskWriter_->enableReadOnly();
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readOnly_ = true;
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}
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void AbstractSingleDiskAdaptor::disableReadOnly()
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{
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diskWriter_->disableReadOnly();
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readOnly_ = false;
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}
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void AbstractSingleDiskAdaptor::enableMmap()
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{
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diskWriter_->enableMmap();
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}
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void AbstractSingleDiskAdaptor::cutTrailingGarbage()
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{
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if(File(getFilePath()).size() > totalLength_) {
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diskWriter_->truncate(totalLength_);
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}
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}
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void AbstractSingleDiskAdaptor::setDiskWriter
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(const DiskWriterHandle& diskWriter)
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{
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diskWriter_ = diskWriter;
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}
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void AbstractSingleDiskAdaptor::setTotalLength(const off_t& totalLength)
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{
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totalLength_ = totalLength;
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}
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} // namespace aria2
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