X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fworker%2FWorkerSet.ts;h=1e3000cc2f719722fe6ddded93cae1ca4acc3e45;hb=1d7a504ba27c38e3f8617c80cf53aed85da580af;hp=d0f80b6ed59a54342430991ff4d318d86e0a5402;hpb=24dc52e9f4bd2ff4539955f169333ee3902bc95e;p=e-mobility-charging-stations-simulator.git

diff --git a/src/worker/WorkerSet.ts b/src/worker/WorkerSet.ts
index d0f80b6e..1e3000cc 100644
--- a/src/worker/WorkerSet.ts
+++ b/src/worker/WorkerSet.ts
@@ -1,5 +1,6 @@
 // Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
 
+import { randomUUID } from 'node:crypto'
 import { EventEmitterAsyncResource } from 'node:events'
 import { SHARE_ENV, Worker } from 'node:worker_threads'
 
@@ -16,9 +17,20 @@ import {
 } from './WorkerTypes.js'
 import { randomizeDelay, sleep } from './WorkerUtils.js'
 
-export class WorkerSet extends WorkerAbstract<WorkerData> {
+interface ResponseWrapper<R extends WorkerData> {
+  resolve: (value: R | PromiseLike<R>) => void
+  reject: (reason?: unknown) => void
+  workerSetElement: WorkerSetElement
+}
+
+export class WorkerSet<D extends WorkerData, R extends WorkerData> extends WorkerAbstract<D, R> {
   public readonly emitter: EventEmitterAsyncResource | undefined
   private readonly workerSet: Set<WorkerSetElement>
+  private readonly promiseResponseMap: Map<
+    `${string}-${string}-${string}-${string}`,
+  ResponseWrapper<R>
+  >
+
   private started: boolean
   private workerStartup: boolean
 
@@ -40,6 +52,10 @@ export class WorkerSet extends WorkerAbstract<WorkerData> {
       throw new RangeError('Elements per worker must be greater than zero')
     }
     this.workerSet = new Set<WorkerSetElement>()
+    this.promiseResponseMap = new Map<
+      `${string}-${string}-${string}-${string}`,
+    ResponseWrapper<R>
+    >()
     if (this.workerOptions.poolOptions?.enableEvents === true) {
       this.emitter = new EventEmitterAsyncResource({ name: 'workerset' })
     }
@@ -102,22 +118,28 @@ export class WorkerSet extends WorkerAbstract<WorkerData> {
   }
 
   /** @inheritDoc */
-  public async addElement (elementData: WorkerData): Promise<void> {
+  public async addElement (elementData: D): Promise<R> {
     if (!this.started) {
       throw new Error('Cannot add a WorkerSet element: not started')
     }
     const workerSetElement = await this.getWorkerSetElement()
-    workerSetElement.worker.postMessage({
-      event: WorkerMessageEvents.addWorkerElement,
-      data: elementData
+    const sendMessageToWorker = new Promise<R>((resolve, reject) => {
+      const message = {
+        uuid: randomUUID(),
+        event: WorkerMessageEvents.addWorkerElement,
+        data: elementData
+      } satisfies WorkerMessage<D>
+      workerSetElement.worker.postMessage(message)
+      this.promiseResponseMap.set(message.uuid, { resolve, reject, workerSetElement })
     })
-    ++workerSetElement.numberOfWorkerElements
+    const response = await sendMessageToWorker
     // Add element sequentially to optimize memory at startup
     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
     if (this.workerOptions.elementAddDelay! > 0) {
       // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
       await sleep(randomizeDelay(this.workerOptions.elementAddDelay!))
     }
+    return response
   }
 
   /**
@@ -130,11 +152,20 @@ export class WorkerSet extends WorkerAbstract<WorkerData> {
       ...this.workerOptions.poolOptions?.workerOptions
     })
     worker.on('message', this.workerOptions.poolOptions?.messageHandler ?? EMPTY_FUNCTION)
-    worker.on('message', (message: WorkerMessage<WorkerData>) => {
-      if (message.event === WorkerMessageEvents.addedWorkerElement) {
-        this.emitter?.emit(WorkerSetEvents.elementAdded, this.info)
-      } else if (message.event === WorkerMessageEvents.workerElementError) {
-        this.emitter?.emit(WorkerSetEvents.elementError, message.data)
+    worker.on('message', (message: WorkerMessage<R>) => {
+      const { uuid, event, data } = message
+      if (this.promiseResponseMap.has(uuid)) {
+        // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+        const { resolve, reject, workerSetElement } = this.promiseResponseMap.get(uuid)!
+        if (event === WorkerMessageEvents.addedWorkerElement) {
+          this.emitter?.emit(WorkerSetEvents.elementAdded, this.info)
+          workerSetElement.numberOfWorkerElements++
+          resolve(data)
+        } else if (event === WorkerMessageEvents.workerElementError) {
+          this.emitter?.emit(WorkerSetEvents.elementError, data)
+          reject(data)
+        }
+        this.promiseResponseMap.delete(message.uuid)
       }
     })
     worker.on('error', this.workerOptions.poolOptions?.errorHandler ?? EMPTY_FUNCTION)