/**
* @param ReadableStreamInterface $readable
* @param WritableStreamInterface $writable
*/
public function __construct(ReadableStreamInterface $readable, WritableStreamInterface $writable)
{
$this->readable = $readable;
$this->writable = $writable;
$this->forwardEvents($this->readable, $this, ['data', 'end', 'error', 'close']);
$this->forwardEvents($this->writable, $this, ['drain', 'error', 'close', 'pipe']);
$this->readable->on('close', [$this, 'close']);
$this->writable->on('close', [$this, 'close']);
$this->on('pipe', [$this, 'handlePipeEvent']);
}
/**
* @param ReadableStreamInterface $source
* @param WritableStreamInterface $destination
* @param array $options
*
* @return WritableStreamInterface
*/
public function pipeAll(ReadableStreamInterface $source, WritableStreamInterface $destination, array $options = [])
{
// TODO: use stream_copy_to_stream
// it is 4x faster than this
// but can lose data under load with no way to recover it
$destination->emit('pipe', array($source));
$source->on('data', function ($data) use($source, $destination) {
$feedMore = $destination->write($data);
if (false === $feedMore) {
$source->pause();
}
});
$destination->on('drain', function () use($source) {
$source->resume();
});
$end = isset($options['end']) ? $options['end'] : true;
if ($end && $source !== $destination) {
$source->on('end', function () use($destination) {
$destination->end();
});
}
return $destination;
}
