mirror of https://github.com/aria2/aria2
113 lines
3.6 KiB
C++
113 lines
3.6 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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#ifndef D_ABSTRACT_SINGLE_DISK_ADAPTOR_H
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#define D_ABSTRACT_SINGLE_DISK_ADAPTOR_H
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#include "DiskAdaptor.h"
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namespace aria2 {
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class DiskWriter;
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class FileAllocationIterator;
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class AbstractSingleDiskAdaptor : public DiskAdaptor {
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private:
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std::unique_ptr<DiskWriter> diskWriter_;
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int64_t totalLength_;
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bool readOnly_;
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public:
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AbstractSingleDiskAdaptor();
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virtual ~AbstractSingleDiskAdaptor();
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virtual void initAndOpenFile() CXX11_OVERRIDE;
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virtual void openFile() CXX11_OVERRIDE;
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virtual void closeFile() CXX11_OVERRIDE;
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virtual void openExistingFile() CXX11_OVERRIDE;
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virtual void writeData(const unsigned char* data, size_t len,
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int64_t offset) CXX11_OVERRIDE;
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virtual ssize_t readData(unsigned char* data, size_t len,
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int64_t offset) CXX11_OVERRIDE;
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virtual ssize_t readDataDropCache(unsigned char* data, size_t len,
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int64_t offset) CXX11_OVERRIDE;
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virtual void writeCache(const WrDiskCacheEntry* entry) CXX11_OVERRIDE;
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virtual bool fileExists() CXX11_OVERRIDE;
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virtual int64_t size() CXX11_OVERRIDE;
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virtual void truncate(int64_t length) CXX11_OVERRIDE;
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virtual std::unique_ptr<FileAllocationIterator>
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fileAllocationIterator() CXX11_OVERRIDE;
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// Make sure that DiskWriter is set before calling this function.
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virtual void enableReadOnly() CXX11_OVERRIDE;
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// Make sure that DiskWriter is set before calling this function.
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virtual void disableReadOnly() CXX11_OVERRIDE;
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virtual bool isReadOnlyEnabled() const CXX11_OVERRIDE { return readOnly_; }
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virtual void enableMmap() CXX11_OVERRIDE;
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virtual void cutTrailingGarbage() CXX11_OVERRIDE;
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virtual const std::string& getFilePath() = 0;
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void setDiskWriter(std::unique_ptr<DiskWriter> diskWriter);
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const std::unique_ptr<DiskWriter>& getDiskWriter() const
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{
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return diskWriter_;
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}
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void setTotalLength(int64_t totalLength);
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int64_t getTotalLength() const { return totalLength_; }
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};
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} // namespace aria2
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#endif // D_ABSTRACT_SINGLE_DISK_ADAPTOR_H
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