Mail::Mbox::MessageParser::MetaInfo - A cache for folder metadata
This module implements a cache for meta-information for mbox folders. The
information includes such items such as the file position, the line number,
and the byte offset of the start of each email.
- SETUP_CACHE(...)
-
SETUP_CACHE( { 'file_name' => <cache file name> } );
<cache file name> - the file name of the cache
Call this function once to set up the cache before creating
any parsers. You must provide the location to the cache file. There is
no default value.
Returns an error string or 1 if there is no error.
- CLEAR_CACHE();
- Use this function to clear the cache and delete the cache file. Normally
you should not need to clear the cache--the module will automatically
update the cache when the mailbox changes. Call this function after
SETUP_CACHE.
- WRITE_CACHE();
- Use this function to force the module to write the in-memory cache
information to the cache file. Normally you do not need to do this--the
module will automatically write the information when the program
exits.
- $ref = new( { 'file_name' => <mailbox file name>, 'file_handle'
=> <mailbox file handle>, });
-
<file_name> - The full filename of the mailbox
<file_handle> - An opened file handle for the mailbox
The constructor for the class takes two parameters.
file_name is the filename of the mailbox. This will be used as
the cache key, so it's important that it fully defines the path to the
mailbox. The file_handle argument is the opened file handle to
the mailbox. Both arguments are required.
Returns a reference to a Mail::Mbox::MessageParser object, or
a string describing the error.
No known bugs.
Contact david@coppit.org for bug reports and suggestions.
David Coppit <david@coppit.org>.
This code is distributed under the GNU General Public License (GPL) Version 2.
See the file LICENSE in the distribution for details.
This code was originally part of the grepmail distribution. See
http://grepmail.sf.net/ for previous versions of grepmail which included early
versions of this code.
Mail::Mbox::MessageParser