stream: Fix readableState.awaitDrain mechanism #6023
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addaleax
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| src.listenerCount('data') === 1 && | ||
| // => Check whether `dest` is still a piping destination. | ||
| if (((state.pipesCount === 1 && state.pipes === dest) || | ||
| (state.pipesCount > 1 && state.pipes.includes(dest))) && |
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Isn't .includes() for strings and not arrays? If I'm right, that means the included test isn't failing like it should?
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It’s from ES2016, but it does what you think it does, i.e. [1, 2, 3].includes(2) === true. I like the clarity of it, but if you’d rather stick with .indexOf(…), I’d definitely understand that.
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I think we'd need .indexOf() if we're backporting to v4.x/v5.x anyway.
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@mscdex You’re right, sorry. Updated this PR with indexOf.
In 6899094 (nodejs#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: nodejs#5820
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LGTM. CI once more: https://ci.nodejs.org/job/node-test-pull-request/2142/ |
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CI failure looks unrelated. |
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LGTM |
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LGTM |
jasnell
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
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MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
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MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
jasnell
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
MylesBorins
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In 6899094 (#2325), the conditions for increasing `readableState.awaitDrain` when writing to a piping destination returns false were changed so that they could not actually be met, effectively leaving `readableState.awaitDrain` with a constant value of 0. This patch changes the conditions to testing whether the stream for which `.write()` returned false is still a piping destination, which was likely the intention of the original patch. Fixes: #5820 Fixes: #5257 PR-URL: #6023 Reviewed-By: Brian White <[email protected]> Reviewed-By: Matteo Collina <[email protected]> Reviewed-By: James M Snell <[email protected]>
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Pull Request check-list
Please make sure to review and check all of these items:
make -j8 test(UNIX) orvcbuild test nosign(Windows) pass withthis change (including linting)?
test (or a benchmark) included?
Is a documentation update included (if this change modifiesexisting APIs, or introduces new ones)?
Affected core subsystem(s)
stream
Description of change
In 6899094 (#2325), the conditions for increasing
readableState.awaitDrainwhen writing to a piping destination returns false were changed so that they could not actually be met, effectively leavingreadableState.awaitDrainwith a constant value of 0.This patch changes the conditions to testing whether the stream for which
.write()returned false is still a piping destination, which was likely the intention of the original patch.Fixes: #5820
/cc @mscdex