refactor: sensible defaults for worker choice strategy policy

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

diff --git a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
index 03e6ca0448e108b919cdd4912a74a61edc719995..0f992cfaf82d17794def8c9a129dacf91075f2ec 100644 (file)
--- a/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
+++ b/src/pools/selection-strategies/least-elu-worker-choice-strategy.ts
@@ -56,8 +56,10 @@ export class LeastEluWorkerChoiceStrategy<
   }
 
   /** @inheritDoc */
-  public choose (): number {
-    return this.leastEluNextWorkerNodeKey()
+  public choose (): number | undefined {
+    const chosenWorkerNodeKey = this.leastEluNextWorkerNodeKey()
+    this.assignChosenWorkerNodeKey(chosenWorkerNodeKey)
+    return this.nextWorkerNodeKey
   }
 
   /** @inheritDoc */
@@ -65,22 +67,23 @@ export class LeastEluWorkerChoiceStrategy<
     return true
   }
 
-  private leastEluNextWorkerNodeKey (): number {
+  private leastEluNextWorkerNodeKey (): number | undefined {
     let minWorkerElu = Infinity
+    let chosenWorkerNodeKey: number | undefined
     for (const [workerNodeKey, workerNode] of this.pool.workerNodes.entries()) {
       const workerUsage = workerNode.usage
       const workerElu = workerUsage.elu?.active?.aggregate ?? 0
       if (this.isWorkerNodeEligible(workerNodeKey) && workerElu === 0) {
-        this.nextWorkerNodeKey = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
         break
       } else if (
         this.isWorkerNodeEligible(workerNodeKey) &&
         workerElu < minWorkerElu
       ) {
         minWorkerElu = workerElu
-        this.nextWorkerNodeKey = workerNodeKey
+        chosenWorkerNodeKey = workerNodeKey
       }
     }
-    return this.nextWorkerNodeKey
+    return chosenWorkerNodeKey
   }
 }