/*************************************************************************** * Copyright (C) 2005-2006 Gao Xianchao * * 2007 Gao Xianchao gnap_an linux_lyb ahlongxp * * * * 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. * ***************************************************************************/ /* * Author: gxc * Create data: 2005-10-22 20:09 */ #ifndef PIECEREQUEST_H_ #define PIECEREQUEST_H_ #include <string> #include <list> typedef struct { unsigned int offset; unsigned int length; bool requested; std::string data; } TRequest; typedef std::list<TRequest> TRequestList; class CPieceRequest { public: CPieceRequest(); virtual ~CPieceRequest(); private: unsigned int _pieceIndex; unsigned int _pieceLength; TRequestList _requestList; public: void alloc(unsigned int pieceIndex, unsigned int pieceLength, unsigned int maxRequestLength); unsigned int getPieceIndex(); unsigned int getPieceLength(); unsigned int getPendingCount(); bool cancelPendingRequest(unsigned int& pieceIndex, unsigned int& offset, unsigned int& length); bool complete(); std::string getPiece(); bool getRequest(unsigned int& pieceIndex, unsigned int& offset, unsigned int& length); bool addPieceData(unsigned int offset, const char* data, size_t length); void clearRequest(); }; #endif /*PIECEREQUEST_H_*/