private function waitForStreamOnce($stream) : PromiseInterface
{
$deferred = new Deferred();
$this->loop->addWriteStream($stream, function ($stream) use($deferred) {
$this->loop->removeWriteStream($stream);
$deferred->resolve($stream);
});
return $deferred->promise();
}
public function handleWrite()
{
if (!is_resource($this->stream)) {
$this->emit('error', [new \RuntimeException('Tried to write to invalid stream.'), $this]);
return;
}
set_error_handler([$this, 'errorHandler']);
$sent = fwrite($this->stream, $this->data);
restore_error_handler();
if (false === $sent) {
$this->emit('error', [new \ErrorException($this->lastError['message'], 0, $this->lastError['number'], $this->lastError['file'], $this->lastError['line']), $this]);
return;
}
if (0 === $sent && feof($this->stream)) {
$this->emit('error', [new \RuntimeException('Tried to write to closed stream.'), $this]);
return;
}
$len = strlen($this->data);
$this->data = (string) substr($this->data, $sent);
if ($len >= $this->softLimit && $len - $sent < $this->getSoftLimit()) {
$this->emit('drain', [$this]);
}
if (0 === strlen($this->data)) {
$this->loop->removeWriteStream($this->stream);
$this->setListening(false);
$this->emit('full-drain', [$this]);
}
}