feat: check worker inactive time only on dynamic worker

[poolifier.git] / src / worker / abstract-worker.ts

diff --git a/src/worker/abstract-worker.ts b/src/worker/abstract-worker.ts
index 0646a9bfa0e423bd466ccc16efeba8b4782067c7..b8b442ecd2c0e2521a2c82b899620aa22197fbd7 100644 (file)
--- a/src/worker/abstract-worker.ts
+++ b/src/worker/abstract-worker.ts
@@ -7,7 +7,7 @@ import type {
   TaskPerformance,
   WorkerStatistics
 } from '../utility-types'
-import { EMPTY_FUNCTION, isPlainObject } from '../utils'
+import { EMPTY_FUNCTION, isAsyncFunction, isPlainObject } from '../utils'
 import {
   type KillBehavior,
   KillBehaviors,
@@ -55,7 +55,7 @@ export abstract class AbstractWorker<
   /**
    * Handler id of the `aliveInterval` worker alive check.
    */
-  protected readonly aliveInterval?: NodeJS.Timeout
+  protected aliveInterval?: NodeJS.Timeout
   /**
    * Constructs a new poolifier worker.
    *
@@ -88,12 +88,6 @@ export abstract class AbstractWorker<
     this.checkWorkerOptions(this.opts)
     this.checkTaskFunctions(taskFunctions)
     if (!this.isMain) {
-      this.lastTaskTimestamp = performance.now()
-      this.aliveInterval = setInterval(
-        this.checkAlive.bind(this),
-        (this.opts.maxInactiveTime ?? DEFAULT_MAX_INACTIVE_TIME) / 2
-      )
-      this.checkAlive.bind(this)()
       this.mainWorker?.on('message', this.messageListener.bind(this))
     }
   }
@@ -151,17 +145,20 @@ export abstract class AbstractWorker<
    * @param message - Message received.
    */
   protected messageListener (message: MessageValue<Data, Data>): void {
-    if (message.id != null && message.data != null) {
+    if (message.dynamic === true) {
+      // Worker dynamic message received
+      this.startCheckAlive()
+    } else if (message.statistics != null) {
+      // Statistics message received
+      this.statistics = message.statistics
+    } else if (message.id != null && message.data != null) {
       // Task message received
       const fn = this.getTaskFunction(message.name)
-      if (fn?.constructor.name === 'AsyncFunction') {
+      if (isAsyncFunction(fn)) {
         this.runInAsyncScope(this.runAsync.bind(this), this, fn, message)
       } else {
         this.runInAsyncScope(this.runSync.bind(this), this, fn, message)
       }
-    } else if (message.statistics != null) {
-      // Statistics message received
-      this.statistics = message.statistics
     } else if (message.kill != null) {
       // Kill message received
       this.aliveInterval != null && clearInterval(this.aliveInterval)
@@ -169,6 +166,15 @@ export abstract class AbstractWorker<
     }
   }
 
+  private startCheckAlive (): void {
+    this.lastTaskTimestamp = performance.now()
+    this.aliveInterval = setInterval(
+      this.checkAlive.bind(this),
+      (this.opts.maxInactiveTime ?? DEFAULT_MAX_INACTIVE_TIME) / 2
+    )
+    this.checkAlive.bind(this)()
+  }
+
   /**
    * Returns the main worker.
    *
@@ -206,10 +212,10 @@ export abstract class AbstractWorker<
    * Handles an error and convert it to a string so it can be sent back to the main worker.
    *
    * @param e - The error raised by the worker.
-   * @returns Message of the error.
+   * @returns The error message.
    */
   protected handleError (e: Error | string): string {
-    return e as string
+    return e instanceof Error ? e.message : e
   }
 
   /**
@@ -233,17 +239,19 @@ export abstract class AbstractWorker<
         id: message.id
       })
     } catch (e) {
-      const err = this.handleError(e as Error)
+      const errorMessage = this.handleError(e as Error | string)
       this.sendToMainWorker({
         taskError: {
-          message: err,
+          workerId: this.id,
+          message: errorMessage,
           data: message.data
         },
-        workerId: this.id,
         id: message.id
       })
     } finally {
-      !this.isMain && (this.lastTaskTimestamp = performance.now())
+      if (!this.isMain && this.aliveInterval != null) {
+        this.lastTaskTimestamp = performance.now()
+      }
     }
   }
 
@@ -270,18 +278,20 @@ export abstract class AbstractWorker<
         return null
       })
       .catch(e => {
-        const err = this.handleError(e as Error)
+        const errorMessage = this.handleError(e as Error | string)
         this.sendToMainWorker({
           taskError: {
-            message: err,
+            workerId: this.id,
+            message: errorMessage,
             data: message.data
           },
-          workerId: this.id,
           id: message.id
         })
       })
       .finally(() => {
-        !this.isMain && (this.lastTaskTimestamp = performance.now())
+        if (!this.isMain && this.aliveInterval != null) {
+          this.lastTaskTimestamp = performance.now()
+        }
       })
       .catch(EMPTY_FUNCTION)
   }