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Human-friendly process signals

 4 years ago
source link: https://www.tuicool.com/articles/NRVFnq6
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Human-friendly process signals.

This is a map of known process signals with some information about each signal.

Unlike os.constants.signals this includes:

Example

const { signalsByName, signalsByNumber } = require('human-signals')

console.log(signalsByName.SIGINT)
// {
//   name: 'SIGINT',
//   number: 2,
//   description: 'User interruption with CTRL-C',
//   supported: true,
//   action: 'terminate',
//   forced: false,
//   standard: 'ansi'
// }

console.log(signalsByNumber[8])
// {
//   name: 'SIGFPE',
//   number: 8,
//   description: 'Floating point arithmetic error',
//   supported: true,
//   action: 'core',
//   forced: false,
//   standard: 'ansi'
// }

Install

npm install human-signals

Usage

signalsByName

Type : object

Object whose keys are signaland values are.

signalsByNumber

Type : object

Object whose keys are signaland values are.

signal

Type : object

Signal object with the following properties.

name

Type : string

Standard name of the signal, for example 'SIGINT' .

number

Type : number

Code number of the signal, for example 2 . While most number are cross-platform, some are different between different OS.

description

Type : string

Human-friendly description for the signal, for example 'User interruption with CTRL-C' .

supported

Type : boolean

Whether the current OS can handle this signal in Node.js using process.on(name, handler) .

The list of supported signals is OS-specific .

action

Type : string
Enum : 'terminate' , 'core' , 'ignore' , 'pause' , 'unpause'

What is the default action for this signal when it is not handled.

forced

Type : boolean

Whether the signal's default action cannot be prevented. This is true for SIGTERM , SIGKILL and SIGSTOP .

standard

Type : string
Enum : 'ansi' , 'posix' , 'bsd' , 'systemv' , 'other'

Which standard defined that signal.

Support

If you found a bug or would like a new feature, don't hesitate to submit an issue on GitHub .

For other questions, feel free to chat with us on Gitter .

Everyone is welcome regardless of personal background. We enforce a Code of conduct in order to promote a positive and inclusive environment.

Contributing

This project was made with :heart: . The simplest way to give back is by starring and sharing it online.

If the documentation is unclear or has a typo, please click on the page's Edit button (pencil icon) and suggest a correction.

If you would like to help us fix a bug or add a new feature, please check our guidelines . Pull requests are welcome!


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