You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
81 lines
2.6 KiB
81 lines
2.6 KiB
15 years ago
|
/***************************************************************************
|
||
|
|
* Copyright (C) 2005 by Joris Guisson *
|
||
|
|
* joris.guisson@gmail.com *
|
||
|
|
* *
|
||
|
|
* 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., *
|
||
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
|
||
|
|
***************************************************************************/
|
||
|
|
#ifndef BTCHUNKSELECTOR_H
|
||
|
|
#define BTCHUNKSELECTOR_H
|
||
|
|
|
||
|
|
#include <list>
|
||
|
|
#include <util/timer.h>
|
||
|
|
|
||
|
|
namespace bt
|
||
|
|
{
|
||
|
|
class BitSet;
|
||
|
|
class PeerDownloader;
|
||
|
|
class ChunkManager;
|
||
|
|
class Downloader;
|
||
|
|
class PeerManager;
|
||
|
|
/**
|
||
|
|
* @author Joris Guisson
|
||
|
|
*
|
||
|
|
* Selects which Chunks to download.
|
||
|
|
*/
|
||
|
|
class ChunkSelector
|
||
|
|
{
|
||
|
|
ChunkManager & cman;
|
||
|
|
Downloader & downer;
|
||
|
|
PeerManager & pman;
|
||
|
|
std::list<Uint32> chunks;
|
||
|
|
Timer sort_timer;
|
||
|
|
public:
|
||
|
|
ChunkSelector(ChunkManager & cman,Downloader & downer,PeerManager &pman);
|
||
|
|
virtual ~ChunkSelector();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Select which chunk to download for a PeerDownloader.
|
||
|
|
* @param pd The PeerDownloader
|
||
|
|
* @param chunk Index of chunk gets stored here
|
||
|
|
* @return true upon succes, false otherwise
|
||
|
|
*/
|
||
|
|
bool select(PeerDownloader* pd,Uint32 & chunk);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Data has been checked, and these chunks are OK.
|
||
|
|
* @param ok_chunks The ok_chunks
|
||
|
|
*/
|
||
|
|
void dataChecked(const BitSet & ok_chunks);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* A range of chunks has been reincluded.
|
||
|
|
* @param from The first chunk
|
||
|
|
* @param to The last chunk
|
||
|
|
*/
|
||
|
|
void reincluded(Uint32 from, Uint32 to);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Reinsert a chunk.
|
||
|
|
* @param chunk The chunk
|
||
|
|
*/
|
||
|
|
void reinsert(Uint32 chunk);
|
||
|
|
};
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|