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<?php
/**
* SPDX-FileCopyrightText: 2019 Roeland Jago Douma <roeland@famdouma.nl>
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace Icewind\Streams;
/**
* Wrapper that calculates the hash on the stream on read
*
* The stream and hash should be passed in when wrapping the stream.
* On close the callback will be called with the calculated checksum.
*
* For supported hashes see: http://php.net/manual/en/function.hash-algos.php
*/
class ReadHashWrapper extends HashWrapper {
public function stream_read($count) {
$data = parent::stream_read($count);
$this->updateHash($data);
return $data;
}
}
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