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Merge streams handling code for http2 streams & net.Socket #19060

Closed as not planned
Closed as not planned
Merge streams handling code for http2 streams & net.Socket#19060
Labels
help wantedIssues that need assistance from volunteers or PRs that need help to proceed.http2Issues and PRs related to the http2 subsystem.netIssues and PRs related to the net subsystem.staleIssues and PRs marked stale due to inactivity and scheduled for automatic closure.

Description

@addaleax
addaleax
opened on Feb 28, 2018

Hey :)

It would be great if we could unify all the code from net and http2 that is only concerned with pushing data to/from the underlying stream, ideally into a common base class of net.Socket and Http2Stream, so that we could also maybe port some of the other native streams (zlib, fs) to using StreamBase on the native side & generally just share a lot of code.

This is probably not an easy task, and probably not doable in one pass, because the http2 and net implementations are always just slightly different, but if anybody wants to try to start working on this, feel free to reach out by commenting here.

Activity

  1. addaleax
    added
    help wantedIssues that need assistance from volunteers or PRs that need help to proceed.
    netIssues and PRs related to the net subsystem.
    good first issueIssues that are suitable for first-time contributors.
    mentor-available
    http2Issues and PRs related to the http2 subsystem.
    on Feb 28, 2018

  2. inidaname commented on Mar 1, 2018

    @inidaname
    inidaname
    on Mar 1, 2018

    Hello
    @addaleax I will like to take this up, if you point me to the right files
    Thank You

  3. apapirovski commented on Mar 1, 2018

    @apapirovski
    apapirovski
    on Mar 1, 2018
    Contributor

    @addaleax Are you sure this is a good first issue? This relies on knowledge of both JS & C++, and pretty good grasp of Node streams, net & http2. I would keep it as help wanted but can't imagine someone would want to start contributing with this particular issue.

  4. addaleax
    removed
    good first issueIssues that are suitable for first-time contributors.
    on Mar 1, 2018

  5. addaleax commented on Mar 1, 2018

    @addaleax
    addaleax
    on Mar 1, 2018
    MemberAuthor

    @apapirovski Yeah, I would talk with people who volunteer for it in more detail about that :) Then again, this doesn’t really require C++ knowledge, although that’s certainly helpful – it’s only about refactoring the JS, as the C++ parts should be identical between those two systems…

    I’ve removed the label for now.

    @inidaname The relevant code is in lib/net.js and lib/internal/http2/core.js. As a start, you might want to just try to make _write look identical for both of these, so that they can be merged into being the same function.

    I think we’d want to create a new file internal/ for a resulting new base class, but that doesn’t have to happen right now.

  6. inidaname commented on Mar 2, 2018

    @inidaname
    inidaname
    on Mar 2, 2018

    @addaleax Okay thank you

  7. SirR4T commented on Mar 3, 2018

    @SirR4T
    SirR4T
    on Mar 3, 2018

    Hi @addaleax : would like to take a shot at this, though would need some beginner help too.

    For instance, _write in lib/internal/http2/core.js seems to use LibuvStreamWrap, whereas in lib/internal/net.js, it seems to use fs.write(). Is the intent of this issue to change lib/internal/net.js 's _write to use LibuvStreamWrap instead?

  8. addaleax commented on Mar 3, 2018

    @addaleax
    addaleax
    on Mar 3, 2018
    MemberAuthor

    would like to take a shot at this

    @SirR4T Sure! But maybe take a different bit of the code, unless @inidaname says that they aren’t working on it anymore.

    For instance, _write in lib/internal/http2/core.js seems to use LibuvStreamWrap

    Well, the underlying stream isn’t a LibuvStreamWrap, it’s an Http2Stream – that shouldn’t matter in practice, because both of these C++ classes use a common interface, which is exposed via the StreamBase class. (Side note: You probably don’t have to modify C++ for this in any way.)

    whereas in lib/internal/net.js, it seems to use fs.write().

    The code from lib/internal/net.js isn’t what I’m thinking about – it can probably stay as it is.

    For net.Socket, the main implementation of _write() and _writev() can be found in lib/net.js and looks a lot more similar to what’s used in lib/internal/http2/core.js.

    Is the intent of this issue to change lib/internal/net.js 's _write to use LibuvStreamWrap instead?

    There’s quite a few common pieces between lib/net.js and lib/internal/http2.js that just deal with how the StreamBase C++ API is matched to the “normal” Node streams API.

    _write() and _writev() are part of that, but there is other code (e.g. onread in lib/net.js and onStreamRead in lib/internal/http2/core.js) that could also be merged. Maybe take a look at that first? It’s going to be trickier than the write functions, but I hope it’s independent enough for that to work.

    If that sounds like a lot, or turns out to be too tricky: A first part of this might be getting rid of the _socketEnd event in lib/net.js. It should be possible to figure out in onread whether self.destroy() should be called or not, based on the writable state of the stream, so we don’t need to create an event listener in afterShutdown. I think this is essentially being done in #19241

  9. inidaname commented on Mar 4, 2018

    @inidaname
    inidaname
    on Mar 4, 2018

    Hello @addaleax
    Thank you for the chance but I guess @SirR4T understand the direction been battling with other projects for sometime will be okay if you can take it up
    Go for it.

  10. addaleax commented on Mar 12, 2018

    @addaleax
    addaleax
    on Mar 12, 2018
    MemberAuthor

    @SirR4T Are you still interested in this?

  11. SirR4T commented on Mar 12, 2018

    @SirR4T
    SirR4T
    on Mar 12, 2018

    I am, but looks like I may be out of my depth here. Maybe further hints might help? Or I'll try my hand at other issues first.

  12. 33 remaining items

  13. DamianRivas commented on Jan 14, 2019

    @DamianRivas
    DamianRivas
    on Jan 14, 2019

    @addaleax is help needed in closing this issue?

  14. refack
    added a commit that references this issue on Jan 14, 2019

    net,http2: merge after-write code

    7cce7fa
  15. addaleax
    added 2 commits that reference this issue on Jan 27, 2019

    net,http2: merge setTimeout code

    802ea05

    test: add test for net-socket-setTimeout callback

    22a9fe3

  16. Ethan-Arrowood commented on Feb 6, 2019

    @Ethan-Arrowood
    Ethan-Arrowood
    on Feb 6, 2019
    Contributor

    If there are any outstanding parts you want merged together I'd like to try it out too!

  17. jagtesh commented on Feb 9, 2019

    @jagtesh
    jagtesh
    on Feb 9, 2019

    I would love to help out as well; I'm comfortable working on both C++ and JS parts.

  18. BridgeAR commented on Jan 4, 2020

    @BridgeAR
    BridgeAR
    on Jan 4, 2020
    Member

    @ronag I guess you might be interested in this.

  19. sachin2605 commented on Jan 6, 2020

    @sachin2605
    sachin2605
    on Jan 6, 2020 via email
  20. Trott
    removed
    mentor-available
    on Jan 5, 2021

  21. Iweisc commented on Feb 12, 2026

    @Iweisc
    Iweisc
    on Feb 12, 2026

    @addaleax Hey i would love to work on this issue. Lmk if theres something i need to know before doing so :)

  22. harishn1408 commented on Apr 30, 2026

    @harishn1408
    harishn1408
    on Apr 30, 2026

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  23. github-actions commented on Jul 30, 2026

    @github-actions
    github-actionsbot
    on Jul 30, 2026 – with GitHub Actions
    Contributor

    This issue has been marked as stale due to 90 days of inactivity.
    It will be automatically closed in 30 days if no further activity occurs. If this is still relevant, please leave a comment or update it to keep it open.

  24. github-actions
    added
    staleIssues and PRs marked stale due to inactivity and scheduled for automatic closure.
    on Jul 30, 2026
  25. avivkeller
    closed this as not plannedon Aug 9, 2026

  26. avivkeller commented on Aug 9, 2026

    @avivkeller
    avivkeller
    on Aug 9, 2026
    Member

    This issue slipped through the cracks because our previous stale bot only tracked issues and couldn't catch all the issues.
    Our new stale bot flagged this, and would have closed it shortly after RenderATL, but I'm just doing it a bit early so
    maintainer's can focus on new code-and-learn PRs during the event.

    If this is still relevant, feel free to reopen it or leave a comment with additional details so we can continue the discussion.

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