From ccf250ec1d0a979e878769cb87d939c970fc863a Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Fri, 04 Jun 2010 06:06:10 -0400
Subject: [PATCH] - performance improvement: we can skip THREAD when folder is empty
---
program/include/rcube_imap_generic.php | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/program/include/rcube_imap_generic.php b/program/include/rcube_imap_generic.php
index ab37902..411e1d3 100644
--- a/program/include/rcube_imap_generic.php
+++ b/program/include/rcube_imap_generic.php
@@ -1552,8 +1552,15 @@
function thread($folder, $algorithm='REFERENCES', $criteria='', $encoding='US-ASCII')
{
+ $old_sel = $this->selected;
+
if (!$this->select($folder)) {
- return false;
+ return false;
+ }
+
+ // return empty result when folder is empty and we're just after SELECT
+ if ($old_sel != $folder && !$this->exists) {
+ return array(array(), array(), array());
}
$encoding = $encoding ? trim($encoding) : 'US-ASCII';
--
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