1.1 --- a/include/Ottoman.h	Thu Sep 24 10:28:50 2009 -0700
     1.2 +++ b/include/Ottoman.h	Thu Sep 24 10:36:08 2009 -0700
     1.3 @@ -79,6 +79,10 @@
     1.4          bool scavenge (bool repair =false);
     1.5          
     1.6          ChunkIterator* chunkIterator() const;       // for testing purposes
     1.7 +        
     1.8 +    protected:
     1.9 +        /** Hook for subclassers: Called when new versions are added. */
    1.10 +        virtual void versionsChanged()                          { }
    1.11  
    1.12      private:
    1.13          Ottoman(const Ottoman&);            // forbid copying/assignment

     2.1 --- a/src/Ottoman.cpp	Thu Sep 24 10:28:50 2009 -0700
     2.2 +++ b/src/Ottoman.cpp	Thu Sep 24 10:36:08 2009 -0700
     2.3 @@ -42,6 +42,7 @@
     2.4      
     2.5      Ottoman::Ottoman()
     2.6      :_writeable(true),
     2.7 +     _file(NULL),
     2.8       _filename(NULL),
     2.9       _lastVersion(NULL),
    2.10       _current( new OverlayDictionary(&Dictionary::kEmpty) )
    2.11 @@ -96,6 +97,9 @@
    2.12              delete _file;
    2.13              _file = curFile;
    2.14          }
    2.15 +        
    2.16 +        if (changed)
    2.17 +            versionsChanged();
    2.18          return changed;
    2.19      }
    2.20      
    2.21 @@ -196,11 +200,12 @@
    2.22          if (!lastVersion)
    2.23              lastVersion = new VersionDictionary(dstFile);
    2.24          VersionDictionary *saved = lastVersion->_appendAndOpen(_current->overlay(), 
    2.25 -                                                            dstFile,
    2.26 -                                                            _current->baseReplaced());
    2.27 +                                                               dstFile,
    2.28 +                                                               _current->baseReplaced());
    2.29          // (don't delete _lastVersion: saved->_previousVersion now points to it.)
    2.30          _lastVersion = saved;
    2.31          _current->revertTo(_lastVersion);
    2.32 +        versionsChanged();
    2.33      }
    2.34      
    2.35      bool Ottoman::save() {
    2.36 @@ -235,6 +240,7 @@
    2.37          File *dstFile = _writeTo(dstFileName, overwriteAllowed);
    2.38          free(_filename);
    2.39          _filename = strdup(dstFileName);
    2.40 +        delete _file;
    2.41          _file = dstFile;
    2.42      }
    2.43