Re: message list retrieval

Luke Ehresman wrote :

> Thanks for all your help so far, I really appreciate it as I'm getting
> up to speed with using this library.

no problem.

> I have another question.  What information is initially retrieved for
> each message when I do a mailfolder_get_messages_list() call?  All I
> want is the list of UID's in a folder, and I want to fetch the header
> information manually.  Basically, I am implementing paging so I only
> want to retrieve a set of 30 headers at a time rather than everything.

First, to answer your question, mailmessage_list will only return a list 
of message with mainly the uid of the messages. The headers won't be 
retrieved.

What you can do is to split the returned mailmessage_list into several 
(you have to build up the mailmessage_list yourself) and use 
mailmessage_get_envelope_list() things.

> The c-client library had a function that would return an array of uid's
> given a folder and a method for sorting them.  I think in a previous
> thread we established that libetpan doesn't do sorting yet, but still
> retriving only a list of uids (or as little information as possible)
> would be useful.

If you fetch the headers using mailmessage_get_envelope_list(), you 
could do the sorting (but you need to provide a custom function to 
choose the kind of sorting). Fetching headers in IMAP using the 
mailmessage_get_envelope() should be fast enough on most servers.
That does not do a FETCH request for each message. That will fetch the 
(IMAP) ENVELOPE in one request, which is optimized (or can be optimized) 
on most IMAP servers.

-- 
DINH V. Hoa,

"oh là, doucement bijou" -- nico

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