/**
* Register a listener to be notified when a stream is ready to write.
*
* @param resource $stream The PHP stream resource to check.
* @param callable $listener Invoked when the stream is ready.
*/
public function addWriteStream($stream, callable $listener)
{
$this->writeWatcherIDs[(int) $stream] = $this->reactor->onWritable($stream, function () use($listener, $stream) {
return call_user_func($listener, $stream, $this);
});
}
