Commit | Line | Data |
---|---|---|
66a7748d | 1 | import { getRandomValues } from 'node:crypto' |
ab93b184 | 2 | |
66a7748d | 3 | import chalk from 'chalk' |
8eac9a09 | 4 | |
789871d6 | 5 | export const sleep = async (milliSeconds: number): Promise<NodeJS.Timeout> => { |
a974c8e4 | 6 | return await new Promise<NodeJS.Timeout>(resolve => |
66a7748d JB |
7 | setTimeout(resolve as () => void, milliSeconds) |
8 | ) | |
9 | } | |
d5bd1c00 | 10 | |
789871d6 JB |
11 | export const defaultExitHandler = (code: number): void => { |
12 | if (code === 0) { | |
66a7748d | 13 | console.info(chalk.green('Worker exited successfully')) |
789871d6 | 14 | } else if (code === 1) { |
66a7748d | 15 | console.info(chalk.green('Worker terminated successfully')) |
789871d6 | 16 | } else if (code > 1) { |
66a7748d | 17 | console.error(chalk.red(`Worker exited with exit code: ${code.toString()}`)) |
268a74bb | 18 | } |
66a7748d | 19 | } |
268a74bb | 20 | |
789871d6 | 21 | export const defaultErrorHandler = (error: Error): void => { |
66a7748d JB |
22 | console.error(chalk.red('Worker errored: '), error) |
23 | } | |
ab93b184 JB |
24 | |
25 | export const randomizeDelay = (delay: number): number => { | |
66a7748d JB |
26 | const random = secureRandom() |
27 | const sign = random < 0.5 ? -1 : 1 | |
28 | const randomSum = delay * 0.2 * random // 0-20% of the delay | |
29 | return delay + sign * randomSum | |
30 | } | |
ab93b184 JB |
31 | |
32 | /** | |
33 | * Generates a cryptographically secure random number in the [0,1[ range | |
34 | * | |
35 | * @returns A number in the [0,1[ range | |
36 | * @internal | |
37 | */ | |
38 | const secureRandom = (): number => { | |
66a7748d JB |
39 | return getRandomValues(new Uint32Array(1))[0] / 0x100000000 |
40 | } |