private function waitForStreamOnce($stream) : PromiseInterface
{
$deferred = new Deferred();
$this->loop->addWriteStream($stream, function ($stream) use($deferred) {
$this->loop->removeWriteStream($stream);
$deferred->resolve($stream);
});
return $deferred->promise();
}
/**
* @inheritdoc
*/
public function write($data)
{
if (!$this->writable) {
return;
}
$this->data .= $data;
if (false === $this->isListening()) {
$this->setListening(true);
$this->loop->addWriteStream($this->stream, [$this, 'handleWrite']);
}
$belowSoftLimit = strlen($this->data) < $this->getSoftLimit();
return $belowSoftLimit;
}