Micke/roundcubemail-plugins-kolab
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Improve cache synchronization: fetch + insert in one row, increase time limit, unlock on script shutdown (#798)

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This commit is contained in:
Thomas Bruederli 2012-05-25 18:08:42 +02:00
parent bd1ab069e4
commit 06d970836c
1 changed files with 20 additions and 11 deletions
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31
plugins/libkolab/lib/kolab_storage_cache.php
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@ -33,6 +33,7 @@ class kolab_storage_cache
private $resource_uri;
private $enabled = true;
private $synched = false;
private $synclock = false;
private $ready = false;
private $binary_cols = array('photo','pgppublickey','pkcs7publickey');
@ -48,6 +49,10 @@ class kolab_storage_cache
$this->imap = $rcmail->get_storage();
$this->enabled = $rcmail->config->get('kolab_cache', false);
// remove sync-lock on script termination
if ($this->enabled)
$rcmail->add_shutdown_function(array($this, '_sync_unlock'));
if ($storage_folder)
$this->set_folder($storage_folder);
}
@ -82,6 +87,9 @@ class kolab_storage_cache
if ($this->synched)
return;
// increase time limit
@set_time_limit(500);
// lock synchronization for this folder or wait if locked
$this->_sync_lock();
@ -109,10 +117,7 @@ class kolab_storage_cache
// fetch new objects from imap
$fetch_index = array_diff($this->index, $old_index);
foreach ($this->_fetch($fetch_index, '*') as $object) {
$msguid = $object['_msguid'];
$this->set($msguid, $object);
}
$this->_fetch($fetch_index, '*');
// delete invalid entries from local DB
$del_index = array_diff($old_index, $this->index);
@ -133,7 +138,7 @@ class kolab_storage_cache
/**
* Read a single entry from cache or
* Read a single entry from cache or from IMAP directly
*
* @param string Related IMAP message UID
* @param string Object type to read
@ -152,8 +157,9 @@ class kolab_storage_cache
if ($this->ready) {
$sql_result = $this->db->query(
"SELECT * FROM kolab_cache ".
"WHERE resource=? AND msguid=?",
"WHERE resource=? AND type=? AND msguid=?",
$this->resource_uri,
$type ?: $this->folder->type,
$msguid
);
@ -180,7 +186,7 @@ class kolab_storage_cache
* @param mixed Hash array with object properties to save or false to delete the cache entry
* @param string IMAP folder name the entry relates to
*/
public function set($msguid, $object, $foldername = null)
public function set($msguid, $object, $foldername = null, $mcache = true)
{
// delegate to another cache instance
if ($foldername && $foldername != $this->folder->name) {
@ -225,7 +231,8 @@ class kolab_storage_cache
}
// keep a copy in memory for fast access
$this->objects[$msguid] = $object;
if ($mcache)
$this->objects[$msguid] = $object;
if ($object)
$this->uid2msg[$object['uid']] = $msguid;
@ -409,7 +416,7 @@ class kolab_storage_cache
foreach ((array)$index as $msguid) {
if ($object = $this->folder->read_object($msguid, $type, $folder)) {
$results[] = $object;
$this->uid2msg[$object['uid']] = $msguid;
$this->set($msguid, $object, null, false);
}
}
@ -512,6 +519,8 @@ class kolab_storage_cache
return;
}
$this->synclock = true;
// create lock record if not exists
if (!$sql_arr) {
$this->db->query(
@ -542,9 +551,9 @@ class kolab_storage_cache
/**
* Remove lock for this folder
*/
private function _sync_unlock()
public function _sync_unlock()
{
if (!$this->ready)
if (!$this->ready || !$this->synclock)
return;
$this->db->query(