protected function socketWriter($socket, Channel $channel, callable $transform = null) : \Generator
{
$writer = new SocketWriter($socket);
$len = 0;
try {
while (null !== ($chunk = (yield $channel->receive()))) {
$len += (yield $writer->write($transform ? $transform($chunk) : $chunk));
}
return $len;
} catch (\Throwable $e) {
$channel->close($e);
throw $e;
} finally {
$writer->dispose();
}
}
protected function handleSendfile(string $path, $socket, int $length, int $offset) : \Generator
{
$stream = (yield $this->readStream($path, $offset));
try {
$writer = new SocketWriter($socket);
$len = 0;
try {
while ($len < $length && null !== ($chunk = (yield $stream->read(\min(4096, $length - $len))))) {
$len += (yield $writer->write($chunk));
}
return $len;
} finally {
$writer->dispose();
}
} catch (\Throwable $e) {
throw new FilesystemException(\sprintf('Failed to send file: "%s"', $path), 0, $e);
} finally {
$stream->close();
}
}
