stream: fix Transform with hwm 0 regression #43648
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Review requested:
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Fixes: nodejs#40935 Refs: nodejs#40947 Refs: nodejs#42457
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Looking at this now. I agree the hwm === 0 check is incorrect. Not sure about the fix though. Digging into it. |
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@kanongil Could you rename this PR or create a new one for lazy reading? |
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Removing |
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This issue/PR was marked as stalled, it will be automatically closed in 30 days. If it should remain open, please leave a comment explaining why it should remain open. |
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Closing this because it has stalled. Feel free to reopen if this issue/PR is still relevant, or to ping the collaborator who labelled it stalled if you have any questions. |
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This undoes a patch from #40947, and reworks it to continue handling backpressure when
highWaterMark: 0, as described in #42457 (comment).The new test fails on node releases with the patch from #40947, like v16.4, and passes on node v14 and node v16.3 from before it was introduced. It is also designed, so that it will fail if
highWaterMark: 1is set instead.