X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fqueue.ts;h=86b69051174672a92c158317f84beb1874cebf07;hb=e460940e8d2a41a846b2334d54410807ffc2f421;hp=a2a613814e86dcd5ab13b7122d8c26a7e647d610;hpb=3db6a2b42ee697b6f587b0f41020771941a65e68;p=poolifier.git

diff --git a/src/queue.ts b/src/queue.ts
index a2a61381..86b69051 100644
--- a/src/queue.ts
+++ b/src/queue.ts
@@ -9,11 +9,13 @@ export class Queue<T> {
   private items: Record<number, T>
   private head: number
   private tail: number
+  private max: number
 
   public constructor () {
     this.items = {}
     this.head = 0
     this.tail = 0
+    this.max = 0
   }
 
   /**
@@ -26,6 +28,16 @@ export class Queue<T> {
     return this.tail - this.head
   }
 
+  /**
+   * Get the maximum size of the queue.
+   *
+   * @returns The maximum size of the queue.
+   * @readonly
+   */
+  public get maxSize (): number {
+    return this.max
+  }
+
   /**
    * Enqueue an item.
    *
@@ -35,14 +47,14 @@ export class Queue<T> {
   public enqueue (item: T): number {
     this.items[this.tail] = item
     this.tail++
+    if (this.size > this.max) this.max = this.size
     return this.size
   }
 
   /**
    * Dequeue an item.
    *
-   * @returns The dequeued item.
-   * @returns `undefined` if the queue is empty.
+   * @returns The dequeued item or `undefined` if the queue is empty.
    */
   public dequeue (): T | undefined {
     if (this.size <= 0) return undefined
@@ -56,4 +68,12 @@ export class Queue<T> {
     }
     return item
   }
+
+  /**
+   * Peek at the first item.
+   */
+  public peek (): T | undefined {
+    if (this.size <= 0) return undefined
+    return this.items[this.head]
+  }
 }