function clean(array $conds)
{
$all = !empty($conds[NCache::ALL]);
$collector = empty($conds);
if ($all || $collector) {
$now = time();
foreach (NFinder::find('*')->from($this->dir)->childFirst() as $entry) {
$path = (string) $entry;
if ($entry->isDir()) {
@rmdir($path);
continue;
}
if ($all) {
$this->delete($path);
} else {
$meta = $this->readMeta($path, LOCK_SH);
if (!$meta) {
continue;
}
if (!empty($meta[self::META_EXPIRE]) && $meta[self::META_EXPIRE] < $now) {
$this->delete($path, $meta[self::HANDLE]);
continue;
}
fclose($meta[self::HANDLE]);
}
}
if ($this->context) {
$this->getJournal()->clean($conds);
}
return;
}
if ($this->context) {
foreach ($this->getJournal()->clean($conds) as $file) {
$this->delete($file);
}
}
}
/**
* Removes items from the cache by conditions & garbage collector.
* @param array conditions
* @return void
*/
public function clean(array $conds)
{
$all = !empty($conds[NCache::ALL]);
$collector = empty($conds);
// cleaning using file iterator
if ($all || $collector) {
$now = time();
foreach (NFinder::find('*')->from($this->dir)->childFirst() as $entry) {
$path = (string) $entry;
if ($entry->isDir()) { // collector: remove empty dirs
@rmdir($path); // @ - removing dirs is not necessary
continue;
}
if ($all) {
$this->delete($path);
} else { // collector
$meta = $this->readMetaAndLock($path, LOCK_SH);
if (!$meta) {
continue;
}
if ((!empty($meta[self::META_DELTA]) && filemtime($meta[self::FILE]) + $meta[self::META_DELTA] < $now)
|| (!empty($meta[self::META_EXPIRE]) && $meta[self::META_EXPIRE] < $now)
) {
$this->delete($path, $meta[self::HANDLE]);
continue;
}
flock($meta[self::HANDLE], LOCK_UN);
fclose($meta[self::HANDLE]);
}
}
if ($this->journal) {
$this->journal->clean($conds);
}
return;
}
// cleaning using journal
if ($this->journal) {
foreach ($this->journal->clean($conds) as $file) {
$this->delete($file);
}
}
}
