/**
* @recoil-coroutine
*/
private function connectSocket(ConnectionOptions $options) : Generator
{
$errorCode = null;
$errorMessage = null;
$stream = @stream_socket_client(\sprintf('tcp://%s:%s', $options->host(), $options->port()), $errorCode, $errorMessage, 0, STREAM_CLIENT_CONNECT | STREAM_CLIENT_ASYNC_CONNECT);
if ($stream === false) {
throw SingleConnectionException::couldNotConnect($options, $errorCode . ': ' . $errorMessage);
}
// Wait for the socket to open or fail ...
stream_set_blocking($stream, false);
list(, $writable) = (yield Recoil::select([$stream], [$stream]));
if (empty($writable)) {
throw SingleConnectionException::couldNotConnect($options, 'connection refused');
}
return $stream;
}
