RetroShare/libretroshare/src/ft/ftfilecreator.h
csoler b6c048a5fd Implemented load/save of chunk maps for current downloads.
The side effect is that even when stopped, downloads show the correct downloaded size (up to the size of one chunk).



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1865 b45a01b8-16f6-495d-af2f-9b41ad6348cc
2009-12-10 22:55:27 +00:00

86 lines
2.3 KiB
C++

/*
* libretroshare/src/ft/ ftfilecreator.h
*
* File Transfer for RetroShare.
*
* Copyright 2008 by Robert Fernie.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
* Please report all bugs and problems to "retroshare@lunamutt.com".
*
*/
#ifndef FT_FILE_CREATOR_HEADER
#define FT_FILE_CREATOR_HEADER
/*
* ftFileCreator
*
* TODO: Serialiser Load / Save.
*
*/
#include "ftfileprovider.h"
#include "ftchunkmap.h"
#include <map>
class ftFileCreator: public ftFileProvider
{
public:
ftFileCreator(std::string savepath, uint64_t size, std::string hash, uint64_t recvd);
~ftFileCreator();
/* overloaded from FileProvider */
virtual bool getFileData(uint64_t offset, uint32_t &chunk_size, void *data);
bool finished() { return getRecvd() == getFileSize(); }
uint64_t getRecvd();
void getChunkMap(FileChunksInfo& info) ;
void setChunkStrategy(FileChunksInfo::ChunkStrategy s) ;
/*
* creation functions for FileCreator
*/
bool getMissingChunk(const std::string& peer_id,uint32_t size_hint,uint64_t& offset, uint32_t& size);
bool addFileData(uint64_t offset, uint32_t chunk_size, void *data);
void loadAvailabilityMap(const std::vector<uint32_t>& map,uint32_t chunk_size,uint32_t chunk_number,uint32_t chunk_strategy) ;
void storeAvailabilityMap(std::vector<uint32_t>& map,uint32_t& chunk_size,uint32_t& chunk_number,uint32_t& chunk_strategy) ;
protected:
virtual int initializeFileAttrs();
private:
bool locked_printChunkMap();
int locked_notifyReceived(uint64_t offset, uint32_t chunk_size);
/*
* structure to track missing chunks
*/
uint64_t mStart;
uint64_t mEnd;
std::map<uint64_t, ftChunk> mChunks;
ChunkMap chunkMap ;
};
#endif // FT_FILE_CREATOR_HEADER