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handle cases where the hash context gets cleaned up before the hash wrapper

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Signed-off-by: Robin Appelman <robin@icewind.nl>
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Robin Appelman 2022-08-31 15:05:10 +02:00
parent f56ecf9242
commit a9575a7029
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1 changed files with 5 additions and 1 deletions
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6
lib/private/Files/Stream/HashWrapper.php
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@ -67,7 +67,11 @@ class HashWrapper extends Wrapper {
public function stream_close() {
if (is_callable($this->callback)) {
call_user_func($this->callback, hash_final($this->hash));
// if the stream is closed as a result of the end-of-request GC, the hash context might be cleaned up before this stream
if ($this->hash instanceof \HashContext) {
$hash = hash_final($this->hash);
call_user_func($this->callback, $hash);
}
// prevent further calls by potential PHP 7 GC ghosts
$this->callback = null;
}