src/fs/ufs/RebuildState.h

   1 /*
   2  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   3  * ----------------------------------------------------------
   4  *
   5  *  Squid is the result of efforts by numerous individuals from
   6  *  the Internet community; see the CONTRIBUTORS file for full
   7  *  details.   Many organizations have provided support for Squid's
   8  *  development; see the SPONSORS file for full details.  Squid is
   9  *  Copyrighted (C) 2001 by the Regents of the University of
  10  *  California; see the COPYRIGHT file for full details.  Squid
  11  *  incorporates software developed and/or copyrighted by other
  12  *  sources; see the CREDITS file for full details.
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  27  *
  28  */
  29
  30 #ifndef SQUID_FS_UFS_REBUILDSTATE_H
  31 #define SQUID_FS_UFS_REBUILDSTATE_H
  32
  33 #include "base/RefCount.h"
  34 #include "store_rebuild.h"
  35 #include "UFSSwapDir.h"
  36 #include "UFSSwapLogParser.h"
  37
  38 class StoreEntry;
  39
  40 namespace Fs
  41 {
  42 namespace Ufs
  43 {
  44
  45 /// \ingroup UFS
  46 class RebuildState : public RefCountable
  47 {
  48 public:
  49     static EVH RebuildStep;
  50
  51     RebuildState(RefCount<UFSSwapDir> sd);
  52     ~RebuildState();
  53
  54     virtual bool error() const;
  55     virtual bool isDone() const;
  56     virtual StoreEntry *currentItem();
  57
  58     RefCount<UFSSwapDir> sd;
  59     int n_read;
  60     /*    FILE *log;*/
  61     Fs::Ufs::UFSSwapLogParser *LogParser;
  62     int curlvl1;
  63     int curlvl2;
  64
  65     struct Flags {
  66         Flags() : need_to_validate(false), clean(false), init(false) {}
  67         bool need_to_validate;
  68         bool clean;
  69         bool init;
  70     } flags;
  71     int in_dir;
  72     int done;
  73     int fn;
  74
  75     dirent_t *entry;
  76     DIR *td;
  77     char fullpath[MAXPATHLEN];
  78     char fullfilename[MAXPATHLEN];
  79
  80     StoreRebuildData counts;
  81
  82 private:
  83     CBDATA_CLASS2(RebuildState);
  84     void rebuildFromDirectory();
  85     void rebuildFromSwapLog();
  86     void rebuildStep();
  87     void undoAdd();
  88     int getNextFile(sfileno *, int *size);
  89     StoreEntry *currentEntry() const;
  90     void currentEntry(StoreEntry *);
  91     StoreEntry *e;
  92     bool fromLog;
  93     bool _done;
  94     /// \bug (callback) should be hidden behind a proper human readable name
  95     void (callback)(void *cbdata);
  96     void *cbdata;
  97 };
  98
  99 } /* namespace Ufs */
 100 } /* namespace Fs */
 101
 102 #endif /* SQUID_FS_UFS_REBUILDSTATE_H */