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stream: emit 'pause' on unpipe#32476

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nxtedition:stream-unpipe-pause
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stream: emit 'pause' on unpipe#32476
ronag wants to merge 1 commit intonodejs:masterfrom
nxtedition:stream-unpipe-pause

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@ronag ronag commented Mar 24, 2020

unpipe should use pause() instead of mutating
state.flowing directly so that pausing side
effects such as emitting 'pause' are properly
performed.

Fixes: #32470

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
stream: emit 'pause' on unpipe
6fce298 
unpipe should use pause() instead of mutating
state.flowing directly so that pausing side
effects such as emitting 'pause' are properly
performed.

Fixes: nodejs#32470
@nodejs-github-bot nodejs-github-bot added the stream Issues and PRs related to the stream subsystem. label Mar 24, 2020
@ronag ronag requested review from addaleax and mcollina March 25, 2020 12:04
addaleax
addaleax approved these changes Mar 25, 2020
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I think this might also fix #32291?

mcollina
mcollina approved these changes Mar 25, 2020
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lgtm

@bricss bricss mentioned this pull request Mar 25, 2020
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nodejs-github-bot commented Mar 26, 2020

CI: https://ci.nodejs.org/job/node-test-pull-request/30087/

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MylesBorins commented Mar 26, 2020

Should we fast track this and get it included in v13.12.0? I don't know if it should so this should not count as 1 of the 2 +1s

@MylesBorins MylesBorins added the fast-track PRs that do not need to wait for 72 hours to land. label Mar 26, 2020
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ronag commented Mar 26, 2020 •
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This doesn't have green CI yet. Maybe flaky test (test.parallel/test-tls-root-certificates)? I'll do a rerun/resume once it's complete (osx always takes time).

I seem to be encountering quite a lot of flakiness nowadays.

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MylesBorins commented Mar 26, 2020

test.parallel/test-tls-root-certificates is failing in the js suite for a variety of PRs and seems to be flaky on master right now. Unsure if this is an infrastructure issue or not.

https://github.com/nodejs/build/issues/2252

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ronag commented Mar 26, 2020

@MylesBorins Does that mean I can land this on master without green CI or should I keep trying until green CI is achieved?

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MylesBorins commented Mar 26, 2020

@ronag kicked off CI again. We should try and get green CI

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nodejs-github-bot commented Mar 26, 2020

CI: https://ci.nodejs.org/job/node-test-pull-request/30094/

MylesBorins pushed a commit that referenced this pull request Mar 26, 2020
@ronag @MylesBorins
stream: emit 'pause' on unpipe
0d0f151 
unpipe should use pause() instead of mutating
state.flowing directly so that pausing side
effects such as emitting 'pause' are properly
performed.

Fixes: #32470

PR-URL: #32476
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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MylesBorins commented Mar 26, 2020

We did it!!!

Landed in 0d0f151

MylesBorins pushed a commit that referenced this pull request Mar 26, 2020
@ronag @MylesBorins
stream: emit 'pause' on unpipe
56da8df 
unpipe should use pause() instead of mutating
state.flowing directly so that pausing side
effects such as emitting 'pause' are properly
performed.

Fixes: #32470

PR-URL: #32476
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
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@mcollina mcollina mcollina approved these changes

@addaleax addaleax addaleax approved these changes

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@hassaanp hassaanp hassaanp approved these changes

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Readable Pause event not triggered when unpipe causes the pause

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@ronag @nodejs-github-bot @MylesBorins @mcollina @addaleax @hassaanp @targos
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