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stream: eos more accurate writable and readable detection #29409

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@ronag ronag commented Sep 2, 2019

The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

Refs: #29395

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

@cclauss
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cclauss commented Sep 2, 2019

The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

Refs: nodejs#29395
@ronag ronag force-pushed the eos-writable-readable branch from afe332c to 5b6e33a Compare September 3, 2019 11:47
@Fishrock123
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Might it be useful to publicly expose these?

@ronag
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ronag commented Sep 5, 2019

@Fishrock123: Something like?

const { isReadable, isWritable } = require('stream');

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@ronag Yes, although I'd like to hear others chime in on the stability of such functions.

@Fishrock123 Fishrock123 added the stream Issues and PRs related to the stream subsystem. label Sep 6, 2019
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Trott commented Sep 7, 2019

@nodejs/streams

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LGTM

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@ronag
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ronag commented Sep 20, 2019

@Trott: This looks ready?

Trott pushed a commit that referenced this pull request Sep 22, 2019
The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

Refs: #29395
PR-URL: #29409
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
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Trott commented Sep 22, 2019

Landed in 8709a40

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targos commented Sep 23, 2019

Should this be backported to v12.x-staging? If yes please follow the guide and raise a backport PR, if not let me know or add the dont-land-on label.

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ronag commented Sep 23, 2019

@targos: Never done it before but I will take a look. Will try to have something ready this week.

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ronag commented Sep 23, 2019

I'd very much like to have this merged and included in such a backport, #29664.

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quick ping re: backport

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sxa commented Jan 13, 2020

@MylesBorins Coincidentally I started looking at backporting this one on Friday - PR ready now

sxa pushed a commit to sxa/node that referenced this pull request Jan 13, 2020
The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

PR-URL: nodejs#29409
Backport-PR-URL: nodejs#31345
targos pushed a commit that referenced this pull request Jan 14, 2020
The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

Refs: #29395
PR-URL: #29409
Backport-PR-URL: #31345
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
BethGriggs pushed a commit that referenced this pull request Feb 6, 2020
The value of stream.readable and stream.writable should not
be used to detect whether a stream is Writable or Readable.

Refs: #29395
PR-URL: #29409
Backport-PR-URL: #31345
Reviewed-By: Matteo Collina <[email protected]>
Reviewed-By: James M Snell <[email protected]>
@MylesBorins MylesBorins mentioned this pull request Feb 8, 2020
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