'use strict'
const FixedThreadPool = require('./fixed')
+const { randomWorker } = require('./util')
+const EventEmitter = require('events')
+class MyEmitter extends EventEmitter {}
/**
* A thread pool with a min/max number of threads , is possible to execute tasks in sync or async mode as you prefer. <br>
* This thread pool will create new workers when the other ones are busy, until the max number of threads,
- * when the max number of threads is reached, an exception will be thrown.
- * This pool will select the worker thread in a round robin fashion. <br>
+ * when the max number of threads is reached, an event will be emitted , if you want to listen this event use the emitter method.
* @author Alessandro Pio Ardizio
* @since 0.0.1
*/
constructor (min, max, filename, opts) {
super(min, filename, opts)
this.max = max
+ this.emitter = new MyEmitter()
}
_chooseWorker () {
return worker
} else {
if (this.workers.length === this.max) {
- throw new Error('Max number of threads reached !!!')
+ this.emitter.emit('FullPool')
+ return randomWorker(this.tasks)
}
- // console.log('new thread is coming')
// all workers are busy create a new worker
const worker = this._newWorker()
worker.port2.on('message', (message) => {