63 lines
1.6 KiB
Go
63 lines
1.6 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package workqueue
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import (
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"time"
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"k8s.io/kubernetes/pkg/util/clock"
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)
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type TimedWorkQueue struct {
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*Type
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clock clock.Clock
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}
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type timedWorkQueueItem struct {
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time time.Time
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obj interface{}
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}
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func NewTimedWorkQueue(clock clock.Clock) *TimedWorkQueue {
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return &TimedWorkQueue{New(), clock}
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}
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// Add adds the obj along with the current timestamp to the queue.
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func (q TimedWorkQueue) Add(obj interface{}) {
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start := q.clock.Now()
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item := timedWorkQueueItem{start, obj}
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q.Type.Add(item)
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}
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// AddWithTimestamp is useful if the caller does not want to refresh the start
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// time when requeuing an item.
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func (q TimedWorkQueue) AddWithTimestamp(obj interface{}, timestamp time.Time) {
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item := timedWorkQueueItem{timestamp, obj}
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q.Type.Add(item)
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}
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// Get gets the obj along with its timestamp from the queue.
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func (q TimedWorkQueue) Get() (item interface{}, start time.Time, shutdown bool) {
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item, shutdown = q.Type.Get()
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if item != nil {
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timed, _ := item.(timedWorkQueueItem)
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item = timed.obj
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start = timed.time
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}
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return item, start, shutdown
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}
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