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worker: enable passing command line flags #25467

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worker: enable passing command line flags #25467

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yaelhe
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@yaelhe yaelhe commented Jan 12, 2019

This PR adds the ability to provide Workers with their own
execArgv flags in replacement of the main thread's execArgv. Only
per-Isolate/per-Environment options are allowed. Per-Process options
and V8 flags are not allowed. Passing an empty execArgv array will
reset per-Isolate and per-Environment options of the Worker to their
defaults. If execArgv option is not passed, the Worker will get
the same flags as the main thread.

Usage example:

const worker = new Worker(__filename, {
    execArgv: ['--trace-warnings'],
});
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

@yaelhe
worker: enable passing command line flags
3980026 
This PR adds the ability to provide Workers with their own
execArgv flags in replacement of the main thread's execArgv. Only
per-Isolate/per-Environment options are allowed. Per-Process options
and V8 flags are not allowed. Passing an empty execArgv array will
reset per-Isolate and per-Environment options of the Worker to their
defaults. If execArgv option is not passed, the Worker will get
the same flags as the main thread.

Usage example:
```
const worker = new Worker(__filename, {
    execArgv: ['--trace-warnings'],
});
```
@nodejs-github-bot nodejs-github-bot added c++ Issues and PRs that require attention from people who are familiar with C++. lib / src Issues and PRs related to general changes in the lib or src directory. labels Jan 12, 2019
@Trott
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Trott commented Jan 13, 2019

@nodejs/workers

@Trott Trott added the worker Issues and PRs related to Worker support. label Jan 13, 2019
addaleax
addaleax approved these changes Jan 13, 2019
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LGTM, nice work!

doc/api/worker_threads.md Show resolved Hide resolved
lib/internal/validators.js Outdated Show resolved Hide resolved
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@yaelhe
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yaelhe commented Jan 13, 2019

Updated with @addaleax 's suggestions.

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addaleax commented Jan 13, 2019 •
edited

CI: https://ci.nodejs.org/job/node-test-pull-request/20080/ (:heavy_check_mark:)

@addaleax addaleax added the author ready PRs that have at least one approval, no pending requests for changes, and a CI started. label Jan 14, 2019
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danbev commented Jan 18, 2019

Landed in 01cd219.

@danbev danbev closed this Jan 18, 2019
danbev pushed a commit that referenced this pull request Jan 18, 2019
@yaelhe @danbev
worker: enable passing command line flags
01cd219 
This PR adds the ability to provide Workers with their own
execArgv flags in replacement of the main thread's execArgv. Only
per-Isolate/per-Environment options are allowed. Per-Process options
and V8 flags are not allowed. Passing an empty execArgv array will
reset per-Isolate and per-Environment options of the Worker to their
defaults. If execArgv option is not passed, the Worker will get
the same flags as the main thread.

Usage example:
```
const worker = new Worker(__filename, {
    execArgv: ['--trace-warnings'],
});
```

PR-URL: #25467
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
@addaleax addaleax added the semver-minor PRs that contain new features and should be released in the next minor version. label Jan 23, 2019
targos pushed a commit that referenced this pull request Jan 24, 2019
@yaelhe @targos
worker: enable passing command line flags
219b1b8 
This PR adds the ability to provide Workers with their own
execArgv flags in replacement of the main thread's execArgv. Only
per-Isolate/per-Environment options are allowed. Per-Process options
and V8 flags are not allowed. Passing an empty execArgv array will
reset per-Isolate and per-Environment options of the Worker to their
defaults. If execArgv option is not passed, the Worker will get
the same flags as the main thread.

Usage example:
```
const worker = new Worker(__filename, {
    execArgv: ['--trace-warnings'],
});
```

PR-URL: #25467
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
@MylesBorins MylesBorins mentioned this pull request Jan 24, 2019
Merged
MylesBorins added a commit that referenced this pull request Jan 24, 2019
@MylesBorins
2019-01-24, Version 11.8.0 (Current)
11ee794 
Notable Changes:

* events:
  * For unhandled `error` events with an argument that is not an
    `Error` object, the resulting exeption will have more information
    about the argument.
    #25621
* child_process:
  * When the `maxBuffer` option is passed, `stdout` and `stderr` will
    be truncated rather than unavailable in case of an error.
    #24951
* policy:
  * Experimental support for module integrity checks through a manifest
    file is implemented now.
    #23834
* n-api:
  * The `napi_threadsafe_function` feature is now stable.
    #25556
* report:
  * An experimental diagnostic API for capturing process state is
    available as `process.report` and through command line flags.
    #22712
* tls:
  * `tls.connect()` takes a `timeout` option analogous to the
    `net.connect()` one.
    #25517
* worker:
  * `process.umask()` is available as a read-only function inside Worker
    threads now.
    #25526
  * An `execArgv` option that supports a subset of Node.js command line
    options is supported now.
    #25467

PR-URL: #25687
MylesBorins added a commit that referenced this pull request Jan 25, 2019
@MylesBorins
2019-01-24, Version 11.8.0 (Current)
641de82 
Notable Changes:

* events:
  * For unhandled `error` events with an argument that is not an
    `Error` object, the resulting exeption will have more information
    about the argument.
    #25621
* child_process:
  * When the `maxBuffer` option is passed, `stdout` and `stderr` will
    be truncated rather than unavailable in case of an error.
    #24951
* policy:
  * Experimental support for module integrity checks through a manifest
    file is implemented now.
    #23834
* n-api:
  * The `napi_threadsafe_function` feature is now stable.
    #25556
* report:
  * An experimental diagnostic API for capturing process state is
    available as `process.report` and through command line flags.
    #22712
* tls:
  * `tls.connect()` takes a `timeout` option analogous to the
    `net.connect()` one.
    #25517
* worker:
  * `process.umask()` is available as a read-only function inside Worker
    threads now.
    #25526
  * An `execArgv` option that supports a subset of Node.js command line
    options is supported now.
    #25467

PR-URL: #25687
@meixg meixg mentioned this pull request Feb 28, 2022
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@addaleax addaleax addaleax approved these changes

@benjamingr benjamingr benjamingr approved these changes

@joyeecheung joyeecheung joyeecheung approved these changes

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@yaelhe @Trott @addaleax @danbev @jdalton @benjamingr @joyeecheung @BethGriggs @nodejs-github-bot