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stream: make finished try to wait for 'close' #32158

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stream: make finished try to wait for 'close' #32158

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@ronag ronag commented Mar 9, 2020 •
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Pipeline uses eos which will invoke the callback
on 'finish' and 'end' before all streams have been
fully destroyed.

Fixes: #32032

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • documentation is changed or added
  • commit message follows commit guidelines

@ronag ronag added stream Issues and PRs related to the stream subsystem. semver-major PRs that contain breaking changes and should be released in the next major version. blocked PRs that are blocked by other issues or PRs. labels Mar 9, 2020
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ronag commented Mar 9, 2020 •
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This is waiting for/blocked by #32051

@ronag ronag force-pushed the pipeline-wait-for-close branch 3 times, most recently from 18c3de4 to c13abc8 Compare March 9, 2020 16:33
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ronag commented Mar 10, 2020

@vweevers

@ronag ronag force-pushed the pipeline-wait-for-close branch 2 times, most recently from 747fbf7 to 059b055 Compare March 10, 2020 07:21
@ronag ronag changed the title stream: make pipeline try to wait for 'close' stream: make finished try to wait for 'close' Mar 10, 2020
@ronag ronag force-pushed the pipeline-wait-for-close branch 2 times, most recently from 9725ba8 to 2fc0856 Compare March 10, 2020 10:03
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ronag commented Mar 10, 2020
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lib/internal/streams/end-of-stream.js
let writableFinished = stream.writableFinished ||
(wState && wState.finished);
const onfinish = () => {
writableFinished = true;
if (willEmitClose && (!stream.readable || readable)) return;
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@ronag ronag Mar 10, 2020 •
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!stream.readable || readable is for the case where the stream is Duplex, but we might not want to wait for 'end' in which case autoDestroy won't be called and 'close' won't be emitted. An example of this is:

await pipeline(readable, duplex)

For the last argument duplex, pipeline will set readable: false explicitly for eos to indicate this.

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mcollina approved these changes Mar 10, 2020
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LGTM, I'm ok with this.

ronag referenced this pull request Mar 10, 2020
@ronag
stream: don't destroy final readable stream in pipeline
4d93e10 
If the last stream in a pipeline is still usable/readable
don't destroy it to allow further composition.

Fixes: #32105

PR-URL: #32110
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
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@szmarczak szmarczak mentioned this pull request Mar 11, 2020
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@ronag I guess this is no longer blocked now, but needs a rebase?

@ronag ronag added author ready PRs that have at least one approval, no pending requests for changes, and a CI started. and removed blocked PRs that are blocked by other issues or PRs. labels Mar 13, 2020
@addaleax addaleax removed the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Mar 13, 2020
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@ronag I’m not sure if this is a new conflict, but the Github UI still says that there are some… also, when adding author ready, make sure that the PR has a fresh CI run :)

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CI: https://ci.nodejs.org/job/node-test-pull-request/29811/

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CI: https://ci.nodejs.org/job/node-test-pull-request/29812/

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CI: https://ci.nodejs.org/job/node-test-pull-request/29960/

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ronag commented Mar 23, 2020

needs another @nodejs/tsc approval

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CI: https://ci.nodejs.org/job/node-test-pull-request/29991/

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CI: https://ci.nodejs.org/job/node-test-pull-request/30002/

@ronag ronag requested a review from jasnell March 24, 2020 08:49
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ronag commented Mar 25, 2020

rebased to fix conflicts

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stream: make pipeline try to wait for 'close'
4f76b58 
Pipeline uses eos which will invoke the callback
on 'finish' and 'end' before all streams have been
fully destroyed.

Fixes: nodejs#32032
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nodejs-github-bot commented Mar 25, 2020 •
edited by ronag
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CI: https://ci.nodejs.org/job/node-test-pull-request/30066/
CITGM: https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/2327/

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CI: https://ci.nodejs.org/job/node-test-pull-request/30071/

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CI: https://ci.nodejs.org/job/node-test-pull-request/30080/

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CI: https://ci.nodejs.org/job/node-test-pull-request/30084/

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CI: https://ci.nodejs.org/job/node-test-pull-request/30085/

mcollina
mcollina approved these changes Mar 26, 2020
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lgtm

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CI: https://ci.nodejs.org/job/node-test-pull-request/30086/

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ronag commented Mar 26, 2020

green CI & CITGM, waiting for another @nodejs/tsc approval

addaleax pushed a commit that referenced this pull request Mar 27, 2020
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stream: make pipeline try to wait for 'close'
1428a92 
Pipeline uses eos which will invoke the callback
on 'finish' and 'end' before all streams have been
fully destroyed.

Fixes: #32032

PR-URL: #32158
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
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Landed in 1428a92

@addaleax addaleax closed this Mar 27, 2020
@BethGriggs BethGriggs mentioned this pull request Apr 7, 2020
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@ronag ronag mentioned this pull request Apr 20, 2020
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@aduh95 aduh95 mentioned this pull request Apr 24, 2020
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@ronag ronag mentioned this pull request Apr 25, 2020
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@vweevers vweevers mentioned this pull request Jan 24, 2022
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@addaleax addaleax addaleax approved these changes

@mcollina mcollina mcollina approved these changes

@lpinca lpinca Awaiting requested review from lpinca

@jasnell jasnell Awaiting requested review from jasnell

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finished(stream, cb) invokes callback too early
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