Human-friendly process signals.

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

Unlike [os.constants.signals](https://nodejs.org/api/os.html#os_signal_constants) this includes:

• human-friendly [descriptions](#description)
• [default actions](#action), including whether they [can be prevented](#forced)
• whether the signal is [supported](#supported) by the current OS

Example

js
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

bash
npm install human-signals

Usage

signalsByName

_Type_: object

Object whose keys are signal [names](#name) and values are [signal objects](#signal).

signalsByNumber

_Type_: object

Object whose keys are signal [numbers](#number) and values are [signal objects](#signal).

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)](https://nodejs.org/api/process.html#process_signal_events).

The list of supported signals is OS-specific.

action

_Type_: string<br>_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<br>_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](../../issues).

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

Everyone is welcome regardless of personal background. We enforce a [Code of conduct](CODE_OF_CONDUCT.md) in order to promote a positive and inclusive environment.

Contributing

This project was made with ❤️. 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](CONTRIBUTING.md). Pull requests are welcome!

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