doc: improve worker pool example

ranjan-purbey · addaleax · commit 393f6914df34 · 2020-04-29T05:10:22.000+02:00
In the worker pool example, the 'kWorkerFreedEvent' should be emitted in case of error as well. After adding new worker in the error handler, the pending tasks should be notified of an available worker. PR-URL: #33082 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Gireesh Punathil <gpunathi@in.ibm.com> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Juan José Arboleda <soyjuanarbol@gmail.com>
diff --git a/doc/api/async_hooks.md b/doc/api/async_hooks.md
@@ -820,6 +820,7 @@ class WorkerPool extends EventEmitter {
     });
     this.workers.push(worker);
     this.freeWorkers.push(worker);
+    this.emit(kWorkerFreedEvent);
   }
 
   runTask(task, callback) {

Original file line number	Diff line number	Diff line change
`@@ -820,6 +820,7 @@ class WorkerPool extends EventEmitter {`
`820`	`820`	`});`
`821`	`821`	`this.workers.push(worker);`
`822`	`822`	`this.freeWorkers.push(worker);`
	`823`	`+ this.emit(kWorkerFreedEvent);`
`823`	`824`	`}`
`824`	`825`
`825`	`826`	`runTask(task, callback) {`