src/CacheDigest.h

   1 /*
   2  * DEBUG: section 70    Cache Digest
   3  * AUTHOR: Alex Rousskov
   4  *
   5  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   6  * ----------------------------------------------------------
   7  *
   8  *  Squid is the result of efforts by numerous individuals from
   9  *  the Internet community; see the CONTRIBUTORS file for full
  10  *  details.   Many organizations have provided support for Squid's
  11  *  development; see the SPONSORS file for full details.  Squid is
  12  *  Copyrighted (C) 2001 by the Regents of the University of
  13  *  California; see the COPYRIGHT file for full details.  Squid
  14  *  incorporates software developed and/or copyrighted by other
  15  *  sources; see the CREDITS file for full details.
  16  *
  17  *  This program is free software; you can redistribute it and/or modify
  18  *  it under the terms of the GNU General Public License as published by
  19  *  the Free Software Foundation; either version 2 of the License, or
  20  *  (at your option) any later version.
  21  *
  22  *  This program is distributed in the hope that it will be useful,
  23  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *  GNU General Public License for more details.
  26  *
  27  *  You should have received a copy of the GNU General Public License
  28  *  along with this program; if not, write to the Free Software
  29  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  30  *
  31  */
  32
  33 #ifndef SQUID_CACHEDIGEST_H_
  34 #define SQUID_CACHEDIGEST_H_
  35
  36 #include "typedefs.h"
  37 class CacheDigestGuessStats;
  38 class StoreEntry;
  39
  40 extern CacheDigest *cacheDigestCreate(int capacity, int bpe);
  41 extern void cacheDigestDestroy(CacheDigest * cd);
  42 extern CacheDigest *cacheDigestClone(const CacheDigest * cd);
  43 extern void cacheDigestClear(CacheDigest * cd);
  44 extern void cacheDigestChangeCap(CacheDigest * cd, int new_cap);
  45 extern int cacheDigestTest(const CacheDigest * cd, const cache_key * key);
  46 extern void cacheDigestAdd(CacheDigest * cd, const cache_key * key);
  47 extern void cacheDigestDel(CacheDigest * cd, const cache_key * key);
  48 extern size_t cacheDigestCalcMaskSize(int cap, int bpe);
  49 extern int cacheDigestBitUtil(const CacheDigest * cd);
  50 extern void cacheDigestGuessStatsUpdate(CacheDigestGuessStats * stats, int real_hit, int guess_hit);
  51 extern void cacheDigestGuessStatsReport(const CacheDigestGuessStats * stats, StoreEntry * sentry, const char *label);
  52 extern void cacheDigestReport(CacheDigest * cd, const char *label, StoreEntry * e);
  53
  54
  55 #endif /* SQUID_CACHEDIGEST_H_ */