<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 1/17/2013 7:29 AM, David Bienvenu
wrote:<br>
</div>
<blockquote cite="mid:50F818E2.5070501@davidbienvenu.org"
type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<div class="moz-cite-prefix">On 1/16/2013 2:16 PM, Kent James
wrote:<br>
</div>
<blockquote cite="mid:50F726D4.4070204@caspia.com" type="cite">
<meta http-equiv="content-type" content="text/html;
charset=ISO-8859-1">
I was looking today at trying to fix the relatively simple bug
793865 "<span id="summary_alias_container"><span
id="short_desc_nonedit_display">nsIMsgParseMailMsgState.envelopePos
must be 64bits to support large mbox folders"</span></span>,
figuring that was one needed step on a relatively small path to
support >4GB mbox files in local folders. But as I looked
into it, we have never resolved the issue of a 32 bit nsMsgKey,
which also equals the message offset in local folders. It is a
far from trivial issue to make progress on that.<br>
</blockquote>
There's a msg hdr property called something like "message-offset"
that's used instead of the msgKey as the offset into the local
folder, by the berkeley mailbox store. The msgKey is used for
backwards compatibility if there is no message-offset. Are you
saying the message-offset is never used, or sometimes not used?<br>
<br>
- David<br>
</blockquote>
What I am saying is that the 32 bit nsMsgKey which equals the offset
in the case of local mbox folders, is still used in way too many
places as a way to access the particular message in a folder.<br>
<br>
If I do an mxr search for nsMsgKey in mail folders, I get "Too many
hits, displaying the first 1000" I don't understand how the
application is supposed to work with message-offset as an
alternative to nsMsgKey in all of those places.<br>
<br>
I would love for you to tell me that I am incorrect. But just to
pick a few examples out of over 1000:<br>
<br>
nsIMsgDBView has "selectMsgByKey(in nsMsgKey key)" which is used in
mailContextMenus.js<br>
<br>
nsMsgFilterService has the array m_searchHits which stores search
hits by their nsMsgKey value<br>
<br>
I don't understand how those are supposed to work with a big mbox
where the offset has exceeded 4GB and the message-offset needs to be
used instead.<br>
<br>
:rkent<br>
<br>
</body>
</html>