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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_ABSTRACT_DISK_WRITER_H_
#define _D_ABSTRACT_DISK_WRITER_H_
#include "DiskWriter.h"
#ifdef HAVE_LIBSSL
#include <openssl/evp.h>
#endif // HAVE_LIBSSL
class AbstractDiskWriter:public DiskWriter {
protected:
int fd;
#ifdef HAVE_LIBSSL
EVP_MD_CTX ctx;
#endif // HAVE_LIBSSL
void createFile(string filename, int addFlags = 0);
void writeDataInternal(const char* data, int len);
int readDataInternal(char* data, int len);
public:
AbstractDiskWriter();
virtual ~AbstractDiskWriter();
void closeFile();
void openExistingFile(string filename);
string sha1Sum(long long int offset, long long int length);
void seek(long long int offset);
void writeData(const char* data, int len, long long int offset);
int readData(char* data, int len, long long int offset);
};
#endif // _D_ABSTRACT_DISK_WRITER_H_
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