src/fs/ufs/StoreSearchUFS.cc

   1 /*
   2  * DEBUG: section 47    Store Directory Routines
   3  * AUTHOR: Robert Collins
   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 #include "squid.h"
  34 #include "cbdata.h"
  35 #include "StoreSearchUFS.h"
  36 #include "UFSSwapDir.h"
  37
  38 CBDATA_NAMESPACED_CLASS_INIT(Fs::Ufs,StoreSearchUFS);
  39
  40 Fs::Ufs::StoreSearchUFS::StoreSearchUFS(RefCount<UFSSwapDir> aSwapDir) :
  41         sd(aSwapDir), walker (sd->repl->WalkInit(sd->repl)),
  42         current (NULL), _done (false)
  43 {}
  44
  45 Fs::Ufs::StoreSearchUFS::~StoreSearchUFS()
  46 {
  47     walker->Done(walker);
  48     walker = NULL;
  49 }
  50
  51 void
  52 Fs::Ufs::StoreSearchUFS::next(void (aCallback)(void *cbdata), void *aCallbackArgs)
  53 {
  54     next();
  55     aCallback(aCallbackArgs);
  56 }
  57
  58 bool
  59 Fs::Ufs::StoreSearchUFS::next()
  60 {
  61     /* the walker API doesn't make sense. the store entries referred to are already readwrite
  62      * from their hash table entries
  63      */
  64
  65     if (walker)
  66         current = const_cast<StoreEntry *>(walker->Next(walker));
  67
  68     if (current == NULL)
  69         _done = true;
  70
  71     return current != NULL;
  72 }
  73
  74 bool
  75 Fs::Ufs::StoreSearchUFS::error() const
  76 {
  77     return false;
  78 }
  79
  80 bool
  81 Fs::Ufs::StoreSearchUFS::isDone() const
  82 {
  83     return _done;
  84 }
  85
  86 StoreEntry *
  87 Fs::Ufs::StoreSearchUFS::currentItem()
  88 {
  89     return current;
  90 }