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 const fixedPool = new FixedThreadPool<MyData, MyResponse>(
  18   availableParallelism(),
  19   workerFile,
  20   {
  21     onlineHandler: () => {
  22       console.info('Worker is online')
  23     },
  24     errorHandler: (e: Error) => {
  25       console.error(e)
  26     },
  27   }
  28 )
  29
  30 await fixedPool.execute()
  31
  32 const dynamicPool = new DynamicThreadPool<MyData, MyResponse>(
  33   Math.floor(availableParallelism() / 2),
  34   availableParallelism(),
  35   workerFile,
  36   {
  37     onlineHandler: () => {
  38       console.info('Worker is online')
  39     },
  40     errorHandler: (e: Error) => {
  41       console.error(e)
  42     },
  43   }
  44 )
  45
  46 await dynamicPool.execute()
  47
  48 setTimeout(async () => {
  49   await fixedPool.destroy()
  50   await dynamicPool.destroy()
  51 }, 3000)