00001 // 00002 // QueryHashTable.h 00003 // 00004 // Copyright (c) Shareaza Development Team, 2002-2005. 00005 // This file is part of SHAREAZA (www.shareaza.com) 00006 // 00007 // Shareaza is free software; you can redistribute it 00008 // and/or modify it under the terms of the GNU General Public License 00009 // as published by the Free Software Foundation; either version 2 of 00010 // the License, or (at your option) any later version. 00011 // 00012 // Shareaza is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 // 00017 // You should have received a copy of the GNU General Public License 00018 // along with Shareaza; if not, write to the Free Software 00019 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00020 // 00021 00022 #if !defined(AFX_QUERYHASHTABLE_H__4D0F77C8_D0BB_4AA5_97EA_3859BA3590B5__INCLUDED_) 00023 #define AFX_QUERYHASHTABLE_H__4D0F77C8_D0BB_4AA5_97EA_3859BA3590B5__INCLUDED_ 00024 00025 #pragma once 00026 00027 class CPacket; 00028 class CBuffer; 00029 class CQuerySearch; 00030 class CXMLElement; 00031 class CNeighbour; 00032 class CQueryHashGroup; 00033 00034 00035 class CQueryHashTable 00036 { 00037 // Construction 00038 public: 00039 CQueryHashTable(); 00040 virtual ~CQueryHashTable(); 00041 00042 // Attributes 00043 public: 00044 BOOL m_bLive; 00045 DWORD m_nCookie; 00046 public: 00047 BYTE* m_pHash; 00048 DWORD m_nHash; 00049 DWORD m_nBits; 00050 DWORD m_nInfinity; 00051 DWORD m_nCount; 00052 CBuffer* m_pBuffer; 00053 public: 00054 CQueryHashGroup* m_pGroup; 00055 00056 // Operations 00057 public: 00058 void Create(); 00059 void Clear(); 00060 BOOL Merge(CQueryHashTable* pSource); 00061 BOOL Merge(CQueryHashGroup* pSource); 00062 BOOL PatchTo(CQueryHashTable* pTarget, CNeighbour* pNeighbour); 00063 BOOL OnPacket(CPacket* pPacket); 00064 int AddPhrase(LPCTSTR pszPhrase); 00065 int AddString(LPCTSTR pszString); 00066 BOOL CheckPhrase(LPCTSTR pszSearch); 00067 BOOL CheckString(LPCTSTR pszString); 00068 BOOL Check(CQuerySearch* pSearch); 00069 int GetPercent(); 00070 protected: 00071 BOOL OnReset(CPacket* pPacket); 00072 BOOL OnPatch(CPacket* pPacket); 00073 int Add(LPCTSTR pszString, int nStart, int nLength); 00074 BOOL PatchToOldShareaza(CQueryHashTable* pTarget, CNeighbour* pNeighbour); 00075 protected: 00076 static inline DWORD HashWord(LPCTSTR pszString, int nStart, int nLength, int nBits); 00077 static inline DWORD HashNumber(DWORD nNumber, int nBits); 00078 00079 }; 00080 00081 #endif // !defined(AFX_QUERYHASHTABLE_H__4D0F77C8_D0BB_4AA5_97EA_3859BA3590B5__INCLUDED_)
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