From b32cb21a7da62ea8d3eca89789f013210aa75c83 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Tue, 23 Jun 2009 03:17:49 -0400
Subject: [PATCH] - more preformance improvements of messages caching + some code refactoring
---
program/include/rcube_imap.php | 84 +++++++++++++++++++++---------------------
1 files changed, 42 insertions(+), 42 deletions(-)
diff --git a/program/include/rcube_imap.php b/program/include/rcube_imap.php
index 87742ab..c2548c2 100644
--- a/program/include/rcube_imap.php
+++ b/program/include/rcube_imap.php
@@ -1545,9 +1545,9 @@
$result = iil_C_Flag($this->conn, $mailbox, join(',', $uids), $flag);
// reload message headers if cached
- $cache_key = $mailbox.'.msg';
if ($this->caching_enabled)
{
+ $cache_key = $mailbox.'.msg';
$this->remove_message_cache($cache_key, $uids);
// close and re-open connection
@@ -1647,18 +1647,9 @@
}
// update cached message headers
$cache_key = $from_mbox.'.msg';
- if ($moved && ($a_cache_index = $this->get_message_cache_index($cache_key)))
- {
- $start_index = 100000;
- foreach ($a_uids as $uid)
- {
- if (($index = array_search($uid, $a_cache_index)) !== FALSE)
- $start_index = min($index, $start_index);
- }
-
+ if ($moved && $start_index = $this->get_message_cache_index_min($cache_key, $a_uids)) {
// clear cache from the lowest index on
- if ($start_index < 100000)
- $this->clear_message_cache($cache_key, $start_index);
+ $this->clear_message_cache($cache_key, $start_index);
}
return $moved;
@@ -1703,18 +1694,9 @@
// remove deleted messages from cache
$cache_key = $mailbox.'.msg';
- if ($deleted && ($a_cache_index = $this->get_message_cache_index($cache_key)))
- {
- $start_index = 100000;
- foreach ($a_uids as $uid)
- {
- if (($index = array_search($uid, $a_cache_index)) !== FALSE)
- $start_index = min($index, $start_index);
- }
-
+ if ($deleted && $start_index = $this->get_message_cache_index_min($cache_key, $a_uids)) {
// clear cache from the lowest index on
- if ($start_index < 100000)
- $this->clear_message_cache($cache_key, $start_index);
+ $this->clear_message_cache($cache_key, $start_index);
}
return $deleted;
@@ -2059,8 +2041,7 @@
// read cache
if (!isset($this->cache[$key]) && $this->caching_enabled)
{
- $cache_data = $this->_read_cache_record('IMAP.'.$key);
- $this->cache[$key] = strlen($cache_data) ? unserialize($cache_data) : FALSE;
+ return $this->_read_cache_record($key);
}
return $this->cache[$key];
@@ -2086,7 +2067,7 @@
foreach ($this->cache as $key => $data)
{
if ($this->cache_changes[$key])
- $this->_write_cache_record('IMAP.'.$key, serialize($data));
+ $this->_write_cache_record($key, serialize($data));
}
}
}
@@ -2102,7 +2083,7 @@
if ($key===NULL)
{
foreach ($this->cache as $key => $data)
- $this->_clear_cache_record('IMAP.'.$key);
+ $this->_clear_cache_record($key);
$this->cache = array();
$this->cache_changed = FALSE;
@@ -2110,7 +2091,7 @@
}
else
{
- $this->_clear_cache_record('IMAP.'.$key);
+ $this->_clear_cache_record($key);
$this->cache_changes[$key] = FALSE;
unset($this->cache[$key]);
}
@@ -2121,27 +2102,25 @@
*/
function _read_cache_record($key)
{
- $cache_data = FALSE;
-
if ($this->db)
{
// get cached data from DB
$sql_result = $this->db->query(
- "SELECT cache_id, data
+ "SELECT cache_id, data, cache_key
FROM ".get_table_name('cache')."
WHERE user_id=?
- AND cache_key=?",
- $_SESSION['user_id'],
- $key);
+ AND cache_key LIKE 'IMAP.%'",
+ $_SESSION['user_id']);
- if ($sql_arr = $this->db->fetch_assoc($sql_result))
+ while ($sql_arr = $this->db->fetch_assoc($sql_result))
{
- $cache_data = $sql_arr['data'];
- $this->cache_keys[$key] = $sql_arr['cache_id'];
+ $sql_key = preg_replace('/^IMAP\./', '', $sql_arr['cache_key']);
+ $this->cache_keys[$sql_key] = $sql_arr['cache_id'];
+ $this->cache[$sql_key] = $sql_arr['data'] ? unserialize($sql_arr['data']) : FALSE;
}
}
- return $cache_data;
+ return $this->cache[$key];
}
/**
@@ -2161,7 +2140,7 @@
WHERE user_id=?
AND cache_key=?",
$_SESSION['user_id'],
- $key);
+ 'IMAP.'.$key);
if ($sql_arr = $this->db->fetch_assoc($sql_result))
$this->cache_keys[$key] = $sql_arr['cache_id'];
@@ -2179,7 +2158,7 @@
AND cache_key=?",
$data,
$_SESSION['user_id'],
- $key);
+ 'IMAP.'.$key);
}
// add new cache record
else
@@ -2189,7 +2168,7 @@
(created, user_id, cache_key, data)
VALUES (".$this->db->now().", ?, ?, ?)",
$_SESSION['user_id'],
- $key,
+ 'IMAP.'.$key,
$data);
}
}
@@ -2204,7 +2183,7 @@
WHERE user_id=?
AND cache_key=?",
$_SESSION['user_id'],
- $key);
+ 'IMAP.'.$key);
}
@@ -2462,7 +2441,28 @@
$start_index);
}
+ /**
+ * @access private
+ */
+ function get_message_cache_index_min($key, $uids=NULL)
+ {
+ if (!$this->caching_enabled)
+ return;
+
+ $sql_result = $this->db->query(
+ "SELECT MIN(idx) AS minidx
+ FROM ".get_table_name('messages')."
+ WHERE user_id=?
+ AND cache_key=?"
+ .(!empty($uids) ? " AND uid IN (".$this->db->array2list($uids, 'integer').")" : ''),
+ $_SESSION['user_id'],
+ $key);
+ if ($sql_arr = $this->db->fetch_assoc($sql_result))
+ return $sql_arr['minidx'];
+ else
+ return 0;
+ }
/* --------------------------------
--
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