src/fs/coss/StoreFScoss.h

   1 /*
   2  * $Id$
   3  *
   4  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   5  * ----------------------------------------------------------
   6  *
   7  *  Squid is the result of efforts by numerous individuals from
   8  *  the Internet community; see the CONTRIBUTORS file for full
   9  *  details.   Many organizations have provided support for Squid's
  10  *  development; see the SPONSORS file for full details.  Squid is
  11  *  Copyrighted (C) 2001 by the Regents of the University of
  12  *  California; see the COPYRIGHT file for full details.  Squid
  13  *  incorporates software developed and/or copyrighted by other
  14  *  sources; see the CREDITS file for full details.
  15  *
  16  *  This program is free software; you can redistribute it and/or modify
  17  *  it under the terms of the GNU General Public License as published by
  18  *  the Free Software Foundation; either version 2 of the License, or
  19  *  (at your option) any later version.
  20  *
  21  *  This program is distributed in the hope that it will be useful,
  22  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  24  *  GNU General Public License for more details.
  25  *
  26  *  You should have received a copy of the GNU General Public License
  27  *  along with this program; if not, write to the Free Software
  28  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  29  *
  30  * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
  31  */
  32 #ifndef SQUID_STOREFSCOSS_H
  33 #define SQUID_STOREFSCOSS_H
  34
  35 class StoreEntry;
  36
  37 /**
  38  \defgroup COSS COSS Storage Filesystem
  39  \ingroup FileSystems
  40  */
  41
  42 /// \ingroup COSS
  43 class CossStats
  44 {
  45
  46 public:
  47     void stat(StoreEntry * sentry);
  48     int stripes;
  49
  50     struct {
  51         int alloc;
  52         int realloc;
  53         int collisions;
  54     } alloc;
  55     int disk_overflows;
  56     int stripe_overflows;
  57     int open_mem_hits;
  58     int open_mem_misses;
  59
  60     struct {
  61         int ops;
  62         int success;
  63         int fail;
  64     }
  65
  66     open, create, close, unlink, read, write, stripe_write;
  67 };
  68
  69
  70 class CacheManager;
  71
  72 #include "StoreFileSystem.h"
  73
  74 /// \ingroup COSS, FileSystems
  75 class StoreFScoss : public StoreFileSystem
  76 {
  77
  78 public:
  79     static StoreFScoss &GetInstance();
  80     static void Stats(StoreEntry * sentry);
  81     StoreFScoss();
  82     virtual ~StoreFScoss() {}
  83
  84     virtual char const *type() const;
  85     virtual SwapDir *createSwapDir();
  86     virtual void done();
  87     virtual void registerWithCacheManager(void);
  88     virtual void setup();
  89     /* Not implemented */
  90     StoreFScoss (StoreFScoss const &);
  91     StoreFScoss &operator=(StoreFScoss const &);
  92     void stat(StoreEntry * sentry);
  93     CossStats stats;
  94
  95 private:
  96     static StoreFScoss _instance;
  97 };
  98
  99 #endif /* SQUID_STOREFSCOSS_H */