/**
* @param string $key
* @param string $storageName
* @param boolean $keyAutoConvert
* @return Mutex
*/
public function create($key, $storageName = null, $keyAutoConvert = true)
{
if ($keyAutoConvert) {
$key = $this->makeMutexKey($key);
}
if (preg_match('/[^0-9a-zA-z_]/um', $key) || strlen($key) > 250) {
throw new WrongNameMutexException($key);
}
$mutex = $this->registry->get($key);
if ($mutex === null) {
if ($storageName === null) {
if (empty($this->storages)) {
throw new NoStorageMutexException();
}
$storage = reset($this->storages);
} else {
if (!isset($this->storages[$storageName])) {
throw new StorageNotFoundMutexException($storageName);
}
$storage = $this->storages[$storageName];
}
$mutex = new Mutex($key, $this->registry, $storage);
$this->registry->add($key, $mutex);
}
return $mutex;
}
public function free()
{
$this->checkFreeState();
$this->registry->remove($this->key, $this);
$this->free = true;
}