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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_MULTI_DISK_WRITER_H_
#define _D_MULTI_DISK_WRITER_H_
#include "DefaultDiskWriter.h"
#include "TorrentMan.h"
#include "messageDigest.h"
class DiskWriterEntry {
public:
FileEntry fileEntry;
DiskWriter* diskWriter;
public:
DiskWriterEntry(const FileEntry& fileEntry):fileEntry(fileEntry) {
diskWriter = new DefaultDiskWriter(this->fileEntry.length);
}
~DiskWriterEntry() {
delete diskWriter;
}
};
typedef deque<DiskWriterEntry*> DiskWriterEntries;
class MultiDiskWriter : public DiskWriter {
private:
DiskWriterEntries diskWriterEntries;
int pieceLength;
bool isInRange(const DiskWriterEntry* entry, long long int offset) const;
int calculateLength(const DiskWriterEntry* entry, long long int fileOffset, int rem) const;
void clearEntries();
MessageDigestContext ctx;
void hashUpdate(DiskWriterEntry* entry, long long int offset, long long int length);
public:
MultiDiskWriter(int pieceLength);
virtual ~MultiDiskWriter();
void setFileEntries(const FileEntries& fileEntries);
virtual void openFile(const string& filename);
virtual void initAndOpenFile(const string& filename);
virtual void closeFile();
virtual void openExistingFile(const string& filename);
virtual void writeData(const char* data, int len, long long int position = 0);
virtual int readData(char* data, int len, long long int position);
virtual string sha1Sum(long long int offset, long long int length);
};
#endif // _D_MULTI_DISK_WRITER_H_
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