feat: add backward iterator to deque
[poolifier.git] / src / pools / selection-strategies / fair-share-worker-choice-strategy.ts
index 00c56dad8f555f64afc0a4d21a693d6a97b956f5..094e9b02f438d711de40431288864a55982cf9cb 100644 (file)
@@ -69,8 +69,8 @@ export class FairShareWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
-    this.fairShareNextWorkerNodeKey()
+  public choose (): number | undefined {
+    this.nextWorkerNodeKey = this.fairShareNextWorkerNodeKey()
     return this.nextWorkerNodeKey
   }
 
@@ -80,8 +80,9 @@ export class FairShareWorkerChoiceStrategy<
     return true
   }
 
-  private fairShareNextWorkerNodeKey (): void {
+  private fairShareNextWorkerNodeKey (): number | undefined {
     let minWorkerVirtualTaskEndTimestamp = Infinity
+    let chosenWorkerNodeKey: number | undefined
     for (const [workerNodeKey] of this.pool.workerNodes.entries()) {
       if (this.workersVirtualTaskEndTimestamp[workerNodeKey] == null) {
         this.computeWorkerVirtualTaskEndTimestamp(workerNodeKey)
@@ -89,13 +90,14 @@ export class FairShareWorkerChoiceStrategy<
       const workerVirtualTaskEndTimestamp =
         this.workersVirtualTaskEndTimestamp[workerNodeKey]
       if (
-        this.isWorkerNodeReady(workerNodeKey) &&
+        this.isWorkerNodeEligible(workerNodeKey) &&
         workerVirtualTaskEndTimestamp < minWorkerVirtualTaskEndTimestamp
       ) {
         minWorkerVirtualTaskEndTimestamp = workerVirtualTaskEndTimestamp
-        this.nextWorkerNodeKey = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
       }
     }
+    return chosenWorkerNodeKey
   }
 
   /**