examples/typescript/pool.ts

   1 import { dirname, extname, join } from 'node:path'
   2 import { fileURLToPath } from 'node:url'
   3
   4 import {
   5   availableParallelism,
   6   DynamicThreadPool,
   7   FixedThreadPool
   8 } from 'poolifier'
   9
  10 import type { MyData, MyResponse } from './worker.js'
  11
  12 const workerFile = join(
  13   dirname(fileURLToPath(import.meta.url)),
  14   `worker${extname(fileURLToPath(import.meta.url))}`
  15 )
  16
  17 export const fixedPool = new FixedThreadPool<MyData, MyResponse>(
  18   availableParallelism(),
  19   workerFile,
  20   {
  21     errorHandler: (e: Error) => {
  22       console.error(e)
  23     },
  24     onlineHandler: () => {
  25       console.info('Worker is online')
  26     }
  27   }
  28 )
  29
  30 export const dynamicPool = new DynamicThreadPool<MyData, MyResponse>(
  31   Math.floor(availableParallelism() / 2),
  32   availableParallelism(),
  33   workerFile,
  34   {
  35     errorHandler: (e: Error) => {
  36       console.error(e)
  37     },
  38     onlineHandler: () => {
  39       console.info('Worker is online')
  40     }
  41   }
  42 )
  43
  44 // eslint-disable-next-line @typescript-eslint/no-misused-promises
  45 setTimeout(async () => {
  46   await fixedPool.destroy()
  47   await dynamicPool.destroy()
  48 }, 3000)