src: create a getter for kernel version #31732

juanarbol · 2020-02-11T08:13:33Z

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

lib/os.js

mscdex · 2020-02-13T08:47:33Z

lib/os.js

  getOSType: _getOSType,
  getPriority: _getPriority,
  getTotalMem,
  getUserInfo,
  getUptime,
  isBigEndian,
+  getOSVersion,


Suggested change

getOSVersion,

Thanks for the review sr!

juanarbol · 2020-02-13T18:47:47Z

I've just made a refactor with the internals implementation, we were using uv_os_uname. two times, then I've propose a third time, so I've just create an abstraction for this three calls into one.

addaleax · 2020-02-13T18:52:57Z

src/node_os.cc

+                               "release",
+                               NewStringType::kNormal).ToLocalChecked(),
+                               release_str)
+           .FromJust();


It might be nicer to create an Array with 3 entries here, even if that means that means that the order of the entries becomes important:

It removes the need to create strings for the keys in C++, and

The .FromJust() calls here can be brought to crash if userland code runs before the os module is required

E.g. the following would current crash the process:

$ node -e 'Object.defineProperty(Object.prototype, "release", { set() { throw new Error(); } }); require("os")' FATAL ERROR: v8::FromJust Maybe value is Nothing. 1: 0xa15eb0 node::Abort() [./node]

Fwiw, here’s a good example of how to create a JS Array from C++ without much overhead:

node/src/node_util.cc

Lines 100 to 106 in d63bcdd

Local<Value> ret[] = {

proxy->GetTarget(),

proxy->GetHandler()

};

args.GetReturnValue().Set(

Array::New(args.GetIsolate(), ret, arraysize(ret)));

E.g. the following would current crash the process:

Are these kind of crashes something to be avoided? It can be reproduced with some other properties:

node -e 'Object.defineProperty(Object.prototype, "name", { set() { throw new Error(); } });require("dns").resolveSrv("_jabber._tcp.google.com", () => {});' FATAL ERROR: v8::FromJust Maybe value is Nothing. 1: 0xa9d570 node::Abort() [node]

@santigimeno Yes – unfortunately, a lot of Node.js core C++ code doesn’t do error handling well, but new code generally should.

lib/os.js

hola.js

src/node_os.cc

test/parallel/test-os.js

juanarbol · 2020-03-04T15:02:00Z

Is this a semver-minor thing?

nodejs-github-bot · 2020-03-04T16:38:28Z

CI: https://ci.nodejs.org/job/node-test-pull-request/29538/

PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

addaleax · 2020-03-09T11:53:53Z

Landed in c1e6725 🎉

MylesBorins · 2020-03-09T23:03:27Z

This does not land cleanly on v13.x. Would someone be willing to open a backport?

juanarbol · 2020-03-10T01:04:43Z

MEEEEEEE ME ME ME ME ME MEEEEEEE, I want to

MylesBorins · 2020-03-10T01:45:43Z

Amazing, thanks @juanarbol

You can find details on how to do a backport in this guide

You wil lwant to target the v13.x-staging branch

Backport-PR-URL: #32166 PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

Notable changes: * [[`ff58854dbe`](ff58854dbe)] - **(SEMVER-MINOR)** **fs**: return first folder made by mkdir recursive (Benjamin Coe) [#31530](#31530) * [[`258a80d3cc`](258a80d3cc)] - **(SEMVER-MINOR)** **src**: create a getter for kernel version (Juan José Arboleda) [#31732](#31732) * [[`4d5981be96`](4d5981be96)] - **(SEMVER-MINOR)** **async_hooks**: add sync enterWith to ALS (Stephen Belanger) [#31945](#31945) * [[`dd83bd266d`](dd83bd266d)] - **(SEMVER-MINOR)** **wasi**: add returnOnExit option (Colin Ihrig) [#32101](#32101) PR-URL: #32185

Notable changes: * async_hooks: - add sync enterWith to ALS (Stephen Belanger) #31945 * cli: - allow --jitless V8 flag in NODE\_OPTIONS (Andrew Neitsch) #32100 * fs: - return first folder made by mkdir recursive (Benjamin Coe) #31530 * n-api: - define release 6 (Gabriel Schulhof) #32058 * src: - create a getter for kernel version (Juan José Arboleda) #31732 * wasi: - add returnOnExit option (Colin Ihrig) #32101 PR-URL: #32185

pRtlGetVersion is not a thing. This text was likely a result of copying the variable name used in libuv. This commit updates the documentation to reference the correct Windows API call. PR-URL: nodejs#32156 Refs: nodejs#31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: Ruben Bridgewater <[email protected]> Reviewed-By: Gireesh Punathil <[email protected]> Reviewed-By: Bartosz Sosnowski <[email protected]> Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]> Reviewed-By: James M Snell <[email protected]>

Backport-PR-URL: nodejs#32166 PR-URL: nodejs#31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

Backport-PR-URL: #32166 PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. os Issues and PRs related to the os subsystem. labels Feb 11, 2020

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src: create a getter for kernel version

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juanarbol added 2 commits February 14, 2020 19:51

fixup

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fixup

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addaleax pushed a commit that referenced this pull request Mar 9, 2020

src: create a getter for kernel version

c1e6725

PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

addaleax closed this Mar 9, 2020

cjihrig mentioned this pull request Mar 9, 2020

doc: fix os.version() Windows API #32156

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MylesBorins added the backport-requested-v13.x label Mar 9, 2020

juanarbol mentioned this pull request Mar 10, 2020

[v13.x backport] src: create a getter for kernel version #32166

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MylesBorins added backported-to-v13.x and removed backport-requested-v13.x labels Mar 10, 2020

MylesBorins pushed a commit that referenced this pull request Mar 10, 2020

src: create a getter for kernel version

258a80d

Backport-PR-URL: #32166 PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

MylesBorins mentioned this pull request Mar 10, 2020

v13.11.0 proposal #32185

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targos removed the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Apr 25, 2020

targos pushed a commit to targos/node that referenced this pull request Apr 25, 2020

src: create a getter for kernel version

ecf359c

Backport-PR-URL: nodejs#32166 PR-URL: nodejs#31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

targos pushed a commit that referenced this pull request Apr 28, 2020

src: create a getter for kernel version

394487e

Backport-PR-URL: #32166 PR-URL: #31732 Reviewed-By: Anna Henningsen <[email protected]> Reviewed-By: James M Snell <[email protected]>

targos mentioned this pull request May 2, 2020

v12.17.0 release proposal #33197

Merged

juanarbol deleted the juanarbol/os-version-binding branch January 19, 2021 16:26

	Local<Value> ret[] = {
	proxy->GetTarget(),
	proxy->GetHandler()
	};

	args.GetReturnValue().Set(
	Array::New(args.GetIsolate(), ret, arraysize(ret)));

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src: create a getter for kernel version #31732

src: create a getter for kernel version #31732

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