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human-signals
Advanced tools
The human-signals npm package is a library that provides human-readable descriptions and other information for system signals. It allows developers to understand and handle system signals in a more user-friendly way.
Getting human-readable information for signals
This feature allows you to retrieve information about a signal, such as its description, by using its name. The example code retrieves information about the SIGINT signal.
const { signalsByName } = require('human-signals');
const info = signalsByName['SIGINT'];
console.log(info);
Listing all signals with their information
This feature provides a list of all system signals along with their human-readable descriptions and other relevant information. The example code logs all available signals to the console.
const { signals } = require('human-signals');
console.log(signals);
The signal-exit package is used to run a callback when a process exits, including when it exits due to a signal. It is similar to human-signals in that it deals with system signals, but it focuses on executing callbacks rather than providing human-readable information.
Human-friendly process signals.
This is a map of known process signals with some information about each signal.
Unlike
os.constants.signals
this includes:
import { signalsByName, signalsByNumber } from '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'
// }
npm install human-signals
This package works in Node.js >=16.17.0.
This is an ES module. It must be loaded using
an import
or import()
statement,
not require()
. If TypeScript is used, it must be configured to
output ES modules,
not CommonJS.
Type: object
Object whose keys are signal names and values are signal objects.
Type: object
Object whose keys are signal numbers and values are signal objects.
Type: object
Signal object with the following properties.
Type: string
Standard name of the signal, for example 'SIGINT'
.
Type: number
Code number of the signal, for example 2
. While most number
are
cross-platform, some are different between different OS.
Type: string
Human-friendly description for the signal, for example
'User interruption with CTRL-C'
.
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.
Type: string
Enum: 'terminate'
, 'core'
, 'ignore'
, 'pause'
, 'unpause'
What is the default action for this signal when it is not handled.
Type: boolean
Whether the signal's default action cannot be prevented. This is true
for
SIGTERM
, SIGKILL
and SIGSTOP
.
Type: string
Enum: 'ansi'
, 'posix'
, 'bsd'
, 'systemv'
, 'other'
Which standard defined that signal.
For any question, don't hesitate to submit an issue on GitHub.
Everyone is welcome regardless of personal background. We enforce a Code of conduct in order to promote a positive and inclusive environment.
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. Pull requests are welcome!
Thanks go to our wonderful contributors:
ehmicky 💻 🎨 🤔 📖 | electrovir 💻 |
5.0.0
16.17.0
FAQs
Human-friendly process signals
The npm package human-signals receives a total of 51,898,517 weekly downloads. As such, human-signals popularity was classified as popular.
We found that human-signals demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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