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zlib: check if the stream is destroyed before push #14330

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If the stream is destroyed while the transform is still being
applied, push() should not be called, and the internal state
should be cleared.

See: koajs/compress#60

Checklist
  • make -j4 test (UNIX), or vcbuild test (Windows) passes
  • tests and/or benchmarks are included
  • commit message follows commit guidelines
Affected core subsystem(s)

zlib, stream

If the stream is destroyed while the transform is still being
applied, push() should not be called, and the internal state
should be cleared.

See: koajs/compress#60
@mcollina mcollina requested a review from mscdex July 17, 2017 17:41
@nodejs-github-bot nodejs-github-bot added the zlib Issues and PRs related to the zlib subsystem. label Jul 17, 2017
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LGTM if the CI comes back OK.

@mcollina mcollina mentioned this pull request Jul 18, 2017
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refack commented Jul 18, 2017

CITGM: https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/910/ (cc @refack)

Junkins is still in a funky mood, might need to re-run later... nodejs/build#798

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mcollina commented Jul 19, 2017

CITGM: https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/915/
CITGM (master): https://ci.nodejs.org/view/Node.js-citgm/job/citgm-smoker/916/

cc @refack can you have a look? Or is still problematic?

@mcollina mcollina mentioned this pull request Jul 19, 2017
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Landing, CITGM seems ok.

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Landed as aa496f4.

@mcollina mcollina closed this Jul 19, 2017
@mcollina mcollina deleted the fix-koa-compress branch July 19, 2017 12:13
mcollina added a commit that referenced this pull request Jul 19, 2017
If the stream is destroyed while the transform is still being
applied, push() should not be called, and the internal state
should be cleared.

See: koajs/compress#60
PR-URL: #14330
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
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refack commented Jul 19, 2017

Maybe add koa-compress to CitGM?

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@refack koa-compress tests were passing.

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refack commented Jul 19, 2017

@refack koa-compress tests were passing.

Will they add a regression test for this?
😕 because GitHub doesn't allow 😞

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I couldn't reproduce this programmatically with koa-compress, but only when load-testing or when my machine was under severe load.

Fishrock123 pushed a commit to Fishrock123/node that referenced this pull request Jul 20, 2017
If the stream is destroyed while the transform is still being
applied, push() should not be called, and the internal state
should be cleared.

Refs: koajs/compress#60
PR-URL: nodejs#14330
Backport-PR-URL: nodejs#14396
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

 Conflicts:
	lib/zlib.js
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@mcollina should this be backported? It would need to be done manually

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This depends on #12925, which is flagged as semver-major. So, no.

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7 participants