/**
* Class constructor
*
* @param mixed $url URL (string), stream (resource) or Q\Stream
* @param array $options Additional options. Properties of this class, methods/callbacks of ssh2_connect() and auth ('none', 'password', 'publickey' or 'hostbased') + props for auth.
*/
public function __construct($url, $options = array())
{
if (is_array($url)) {
$options = $url + $options;
$url = isset($options['url']) ? $options['url'] : null;
}
if (is_object($url) || isset($options['use'])) {
$this->connection = is_object($url) ? $url : (is_object($options['use']) ? $options['use'] : Stream::create($options['use'], $options));
if (!interface_exists(__NAMESPACE__ . '::StreamingConnection', false) || !$this->connection instanceof StreamingConnection) {
throw new Exception("You can't use an " . (is_object($this->connection) ? get_class($this->connection) : $this->connection) . " as a stream.");
}
} else {
$this->connection = Connection::create($url, $options);
}
$this->copyfiles = !empty($options['copyfiles']);
$this->keepalive = isset($this->stream) || !empty($options['keepalive']);
}
/**
* Create new Stream monad.
*
* @param mixed $value a value
* @return Stream a Stream monad
*/
function stream($traversable) : Stream
{
return Stream::create($traversable);
}