/**
* {@inheritdoc}
*/
public function flush() : Awaitable
{
if ($this->closed) {
return new Failure(new StreamClosedException('Cannot flush closed stream'));
}
return new Coroutine(function () {
try {
$chunk = \deflate_add($this->context, $this->buffer, \ZLIB_FINISH);
} finally {
$this->buffer = '';
}
$len = $this->stream->write($chunk);
(yield parent::flush());
return $len;
});
}
/**
* {@inheritdoc}
*/
public function close() : Awaitable
{
$this->context = null;
return parent::close();
}