Dave Rolsky


Alzabo::ObjectCache::Sync::DB_File - Uses a Berkeley DB file to sync object caches


  use Alzabo::ObjectCache( store => 'Alzabo::ObjectCache::Store::Memory',
                           sync  => 'Alzabo::ObjectCache::Sync::DB_File',
                           sync_dbm_file => 'somefilename.db',
                           clear_on_startup => 1 );


This class implements object cache syncing between multiple processes using a Berkeley DB file to handle data storage. It implements locking to make sure that there are no race conditions with reading/writing data.


  • sync_dbm_file => $filename

    This parameter is required. It is the name of the file which will be used to store the syncing data. If the file does not exist, it will be created. If it does exist it will not be overwritten.

  • clear_on_startup => $boolean

    If this is true, then a new file is always created on when the module is loaded, overwriting any existing file. This is generally desirable as an existing file may contain spurious entries from previous executions of the program. However, in the interests of safety, this parameter defaults to false.


Dave Rolsky, <autarch@urth.org>