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stream: do cleanup when iterator is destroyed #42320

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Merged
nodejs-github-bot merged 3 commits into from
Mar 16, 2022
+18 −1
Merged

stream: do cleanup when iterator is destroyed #42320

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58374c5
stream: do cleanup when iterator is destroyed
KhooHaoYit Mar 13, 2022
7639e53
test: check for dangling listeners
KhooHaoYit Mar 13, 2022
d90fa58
test: enable no-unused-vars ESLint rule
KhooHaoYit Mar 13, 2022
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5 changes: 4 additions & 1 deletion lib/internal/streams/readable.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,7 +1122,7 @@ async function* createAsyncIterator(stream, options) {
stream.on('readable', next);

let error;
eos(stream, { writable: false }, (err) => {
const cleanup = eos(stream, { writable: false }, (err) => {
error = err ? aggregateTwoErrors(error, err) : null;
callback();
callback = nop;
Expand Down Expand Up @@ -1150,6 +1150,9 @@ async function* createAsyncIterator(stream, options) {
(error === undefined || stream._readableState.autoDestroy)
) {
destroyImpl.destroyer(stream, null);
} else {
stream.off('readable', next);
cleanup();
}
}
}
Expand Down