mirror of https://github.com/k3s-io/k3s
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
|
/*
|
||
|
Copyright 2017 The Kubernetes Authors.
|
||
|
|
||
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
you may not use this file except in compliance with the License.
|
||
|
You may obtain a copy of the License at
|
||
|
|
||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
||
|
Unless required by applicable law or agreed to in writing, software
|
||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
See the License for the specific language governing permissions and
|
||
|
limitations under the License.
|
||
|
*/
|
||
|
|
||
|
package store
|
||
|
|
||
|
import "sync"
|
||
|
|
||
|
// StopCh is used to propagate the stop information of a container.
|
||
|
type StopCh struct {
|
||
|
ch chan struct{}
|
||
|
once sync.Once
|
||
|
}
|
||
|
|
||
|
// NewStopCh creates a stop channel. The channel is open by default.
|
||
|
func NewStopCh() *StopCh {
|
||
|
return &StopCh{ch: make(chan struct{})}
|
||
|
}
|
||
|
|
||
|
// Stop close stopCh of the container.
|
||
|
func (s *StopCh) Stop() {
|
||
|
s.once.Do(func() {
|
||
|
close(s.ch)
|
||
|
})
|
||
|
}
|
||
|
|
||
|
// Stopped return the stopCh of the container as a readonly channel.
|
||
|
func (s *StopCh) Stopped() <-chan struct{} {
|
||
|
return s.ch
|
||
|
}
|