examples/javascript/fixedExample.js

   1 'use strict'
   2 const {
   3   FixedThreadPool,
   4   PoolEvents,
   5   availableParallelism
   6 } = require('poolifier')
   7
   8 const pool = new FixedThreadPool(availableParallelism(), './yourWorker.js', {
   9   errorHandler: e => console.error(e),
  10   onlineHandler: () => console.info('worker is online')
  11 })
  12 let poolReady = 0
  13 let poolBusy = 0
  14 pool.emitter.on(PoolEvents.ready, () => poolReady++)
  15 pool.emitter.on(PoolEvents.busy, () => poolBusy++)
  16
  17 let resolved = 0
  18 const start = performance.now()
  19 const iterations = 1000
  20 for (let i = 1; i <= iterations; i++) {
  21   pool
  22     .execute()
  23     .then(() => {
  24       resolved++
  25       if (resolved === iterations) {
  26         console.info(`Time taken is ${performance.now() - start}`)
  27         console.info(`The pool was ready for ${poolReady} times`)
  28         return console.info(`The pool was busy for ${poolBusy} times`)
  29       }
  30       return null
  31     })
  32     .catch(err => console.error(err))
  33 }