/**
* @param string $socketAddress
* @param resource|null $socketContext
*
* @throws Exception\BindOrListenException
*
* @return resource
*/
public static function createServerSocket($socketAddress, $socketContext = null)
{
try {
return self::doCreateServerSocket($socketAddress, $socketContext);
} catch (Exception\BindOrListenException $e) {
if (($socketFile = IdentificationHelper::getSocketFile($socketAddress)) !== null) {
try {
fclose(self::createClientSocket($socketAddress, 1, $socketContext));
// Really in use
throw $e;
} catch (Exception\ConnectException $e2) {
// False positive due to a residual socket file
unlink($socketFile);
return self::doCreateServerSocket($socketAddress, $socketContext);
}
} else {
throw $e;
}
}
}
/**
* @param string $socketAddress
*
* @throws Exception\BindOrListenException
* @throws Exception\RuntimeException
*
* @return resource
*/
private static function startListening($socketAddress)
{
$lock = Lock::acquire();
if (self::$killSwitchPath !== null) {
$kswitch = new KillSwitch(self::$killSwitchPath);
if ($kswitch->getGlobal() || $kswitch->hasAddress($socketAddress)) {
throw new Exception\RuntimeException('This worker has been prevented from starting using the kill switch');
}
}
$socketFile = IdentificationHelper::getSocketFile($socketAddress);
if ($socketFile !== null) {
$socketDir = dirname($socketFile);
if (!is_dir($socketDir)) {
mkdir($socketDir, 0777, true);
}
}
$server = SocketFactory::createServerSocket($socketAddress, self::$socketContext);
$lock->release();
self::$socket = $server;
self::$listening = true;
self::$toDelete = $socketFile;
return $server;
}
