/**
* Find out if APC is enabled
*
* @return bool
*/
public static function isAPCEnabled()
{
if (self::$isAPCEnabled == null) {
$keySuffix = PHP_SAPI == 'cli' ? '_cli' : '';
self::$isAPCEnabled = ini_get('apc.enabled' . $keySuffix);
}
return self::$isAPCEnabled;
}
/**
* Protected constructor
*
* @return void
*/
protected function __construct()
{
$isAPCEnabled = Resqee::isAPCEnabled();
if ($isAPCEnabled) {
$config = apc_fetch(self::APC_KEY_CONFIG . $this->getConfigFile());
if ($config !== false) {
$this->config = $config;
}
}
if (empty($this->config)) {
$this->config = $this->parseConfig($this->getConfigFile());
if ($isAPCEnabled) {
apc_add(self::APC_KEY_CONFIG . $this->getConfigFile(), $this->config, self::APC_TTL_CONFIG);
}
}
}
/**
* Check whether a server is disabled
*
* We check local cache and APC
*
* @param string|array $hostAndPort localhost:80
* or array('host' => localhost, 'port' => 80)
*
* @return bool
*/
public function isServerDisabled($hostAndPort)
{
if (is_array($hostAndPort)) {
$hostAndPort = "{$hostAndPort['host']}:{$hostAndPort['port']}";
}
return isset(self::$disabledServers[$hostAndPort]) || Resqee::isAPCEnabled() && apc_fetch(self::APC_KEY_SERVER_DISABLED . $hostAndPort);
}