src/StoreFileSystem.cc

   1
   2 /*
   3  * DEBUG: section 92    Storage File System
   4  * AUTHOR: Robert Collins
   5  *
   6  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   7  * ----------------------------------------------------------
   8  *
   9  *  Squid is the result of efforts by numerous individuals from
  10  *  the Internet community; see the CONTRIBUTORS file for full
  11  *  details.   Many organizations have provided support for Squid's
  12  *  development; see the SPONSORS file for full details.  Squid is
  13  *  Copyrighted (C) 2001 by the Regents of the University of
  14  *  California; see the COPYRIGHT file for full details.  Squid
  15  *  incorporates software developed and/or copyrighted by other
  16  *  sources; see the CREDITS file for full details.
  17  *
  18  *  This program is free software; you can redistribute it and/or modify
  19  *  it under the terms of the GNU General Public License as published by
  20  *  the Free Software Foundation; either version 2 of the License, or
  21  *  (at your option) any later version.
  22  *
  23  *  This program is distributed in the hope that it will be useful,
  24  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  25  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  26  *  GNU General Public License for more details.
  27  *
  28  *  You should have received a copy of the GNU General Public License
  29  *  along with this program; if not, write to the Free Software
  30  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  31  *
  32  * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org>
  33  */
  34
  35 #include "squid.h"
  36 #include "StoreFileSystem.h"
  37
  38 Vector<StoreFileSystem*> *StoreFileSystem::_FileSystems = NULL;
  39
  40 void
  41 StoreFileSystem::RegisterAllFsWithCacheManager(void)
  42 {
  43     for (iterator i = GetFileSystems().begin(); i != GetFileSystems().end(); ++i)
  44         (*i)->registerWithCacheManager();
  45 }
  46
  47 void
  48 StoreFileSystem::SetupAllFs()
  49 {
  50     for (iterator i = GetFileSystems().begin(); i != GetFileSystems().end(); ++i)
  51         /* Call the FS to set up capabilities and initialize the FS driver */
  52         (*i)->setup();
  53 }
  54
  55 void
  56 StoreFileSystem::FsAdd(StoreFileSystem &instance)
  57 {
  58     iterator i = GetFileSystems().begin();
  59
  60     while (i != GetFileSystems().end()) {
  61         assert(strcmp((*i)->type(), instance.type()) != 0);
  62         ++i;
  63     }
  64
  65     GetFileSystems().push_back (&instance);
  66 }
  67
  68 Vector<StoreFileSystem *> const &
  69 StoreFileSystem::FileSystems()
  70 {
  71     return GetFileSystems();
  72 }
  73
  74 Vector<StoreFileSystem*> &
  75 StoreFileSystem::GetFileSystems()
  76 {
  77     if (!_FileSystems)
  78         _FileSystems = new Vector<StoreFileSystem *>;
  79
  80     return *_FileSystems;
  81 }
  82
  83 /*
  84  * called when a graceful shutdown is to occur
  85  * of each fs module.
  86  */
  87 void
  88 StoreFileSystem::FreeAllFs()
  89 {
  90     while (GetFileSystems().size()) {
  91         StoreFileSystem *fs = GetFileSystems().back();
  92         GetFileSystems().pop_back();
  93         fs->done();
  94     }
  95 }
  96
  97 /* no filesystem is required to export statistics */
  98 void
  99 StoreFileSystem::registerWithCacheManager(void)
 100 {}