docs: update changelog

[poolifier.git] / src / pools / selection-strategies / abstract-worker-choice-strategy.ts

diff --git a/src/pools/selection-strategies/abstract-worker-choice-strategy.ts b/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
index e29c1e38987a49aab6d19e5eba0670cb4b2131c5..bf67b80e84ef257bd8d10ffe86946a53b2433b8a 100644 (file)
--- a/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/abstract-worker-choice-strategy.ts
@@ -1,5 +1,5 @@
 import { DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS } from '../../utils'
-import { PoolType, type IPool } from '../pool'
+import type { IPool } from '../pool'
 import type { IWorker } from '../worker'
 import type {
   IWorkerChoiceStrategy,
@@ -24,8 +24,6 @@ export abstract class AbstractWorkerChoiceStrategy<
    */
   private toggleFindLastFreeWorkerNodeKey: boolean = false
   /** @inheritDoc */
-  protected readonly isDynamicPool: boolean
-  /** @inheritDoc */
   public readonly requiredStatistics: RequiredStatistics = {
     runTime: false,
     avgRunTime: false,
@@ -42,7 +40,6 @@ export abstract class AbstractWorkerChoiceStrategy<
     protected readonly pool: IPool<Worker, Data, Response>,
     protected opts: WorkerChoiceStrategyOptions = DEFAULT_WORKER_CHOICE_STRATEGY_OPTIONS
   ) {
-    this.isDynamicPool = this.pool.type === PoolType.DYNAMIC
     this.choose = this.choose.bind(this)
   }
 
@@ -55,11 +52,22 @@ export abstract class AbstractWorkerChoiceStrategy<
       this.requiredStatistics.avgRunTime = true
       this.requiredStatistics.medRunTime = opts.medRunTime as boolean
     }
+    if (
+      opts.weights != null &&
+      Object.keys(opts.weights).length < this.pool.size
+    ) {
+      throw new Error(
+        'Worker choice strategy options must have a weight for each worker node.'
+      )
+    }
   }
 
   /** @inheritDoc */
   public abstract reset (): boolean
 
+  /** @inheritDoc */
+  public abstract update (workerNodeKey: number): boolean
+
   /** @inheritDoc */
   public abstract choose (): number
 
@@ -98,7 +106,7 @@ export abstract class AbstractWorkerChoiceStrategy<
    */
   private findFirstFreeWorkerNodeKey (): number {
     return this.pool.workerNodes.findIndex(workerNode => {
-      return workerNode.tasksUsage?.running === 0
+      return workerNode.tasksUsage.running === 0
     })
   }
 
@@ -114,11 +122,15 @@ export abstract class AbstractWorkerChoiceStrategy<
   private findLastFreeWorkerNodeKey (): number {
     // It requires node >= 18.0.0:
     // return this.workerNodes.findLastIndex(workerNode => {
-    //   return workerNode.tasksUsage?.running === 0
+    //   return workerNode.tasksUsage.running === 0
     // })
-    for (let i = this.pool.workerNodes.length - 1; i >= 0; i--) {
-      if (this.pool.workerNodes[i].tasksUsage?.running === 0) {
-        return i
+    for (
+      let workerNodeKey = this.pool.workerNodes.length - 1;
+      workerNodeKey >= 0;
+      workerNodeKey--
+    ) {
+      if (this.pool.workerNodes[workerNodeKey].tasksUsage.running === 0) {
+        return workerNodeKey
       }
     }
     return -1