added a ForEach to priority queue to peek at contents

priorityqueue.go

@@ -77,3 +77,12 @@ func (q *PriorityQueue[T]) Clear() {
 
 	q.items = []*element[T]{}
 }
+
+func (q *PriorityQueue[T]) ForEach(fn func(*T)) {
+	q.lock.RLock()
+	defer q.lock.RUnlock()
+
+	for _, v := range q.items {
+		fn(&v.value)
+	}
+}