src/fs/coss/StoreFScoss.h

   1
   2 /*
   3  * $Id: StoreFScoss.h,v 1.4 2008/02/26 21:49:43 amosjeffries Exp $
   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  * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
  32  */
  33
  34 #ifndef SQUID_STOREFSCOSS_H
  35 #define SQUID_STOREFSCOSS_H
  36
  37 #include "StoreFileSystem.h"
  38
  39 /**
  40  \defgroup COSS COSS Storage Filesystem
  41  \ingroup FileSystems
  42  */
  43
  44 /// \ingroup COSS
  45 class CossStats
  46 {
  47
  48 public:
  49     void stat(StoreEntry * sentry);
  50     int stripes;
  51
  52     struct
  53     {
  54         int alloc;
  55         int realloc;
  56         int collisions;
  57     }
  58
  59     alloc;
  60     int disk_overflows;
  61     int stripe_overflows;
  62     int open_mem_hits;
  63     int open_mem_misses;
  64
  65     struct
  66     {
  67         int ops;
  68         int success;
  69         int fail;
  70     }
  71
  72     open, create, close, unlink, read, write, stripe_write;
  73 };
  74
  75 /// \ingroup COSS, FileSystems
  76 class StoreFScoss : public StoreFileSystem
  77 {
  78
  79 public:
  80     static StoreFScoss &GetInstance();
  81     static void Stats(StoreEntry * sentry);
  82     StoreFScoss();
  83     virtual ~StoreFScoss() {}
  84
  85     virtual char const *type() const;
  86     virtual SwapDir *createSwapDir();
  87     virtual void done();
  88     virtual void registerWithCacheManager(CacheManager & manager);
  89     virtual void setup();
  90     /* Not implemented */
  91     StoreFScoss (StoreFScoss const &);
  92     StoreFScoss &operator=(StoreFScoss const &);
  93     void stat(StoreEntry * sentry);
  94     CossStats stats;
  95
  96 private:
  97     static StoreFScoss _instance;
  98 };
  99
 100 #endif /* SQUID_STOREFSCOSS_H */