mirror of https://github.com/k3s-io/k3s
43 lines
1.1 KiB
Go
43 lines
1.1 KiB
Go
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/*
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Copyright 2017 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 store
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import "sync"
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// StopCh is used to propagate the stop information of a container.
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type StopCh struct {
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ch chan struct{}
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once sync.Once
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}
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// NewStopCh creates a stop channel. The channel is open by default.
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func NewStopCh() *StopCh {
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return &StopCh{ch: make(chan struct{})}
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}
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// Stop close stopCh of the container.
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func (s *StopCh) Stop() {
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s.once.Do(func() {
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close(s.ch)
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})
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}
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// Stopped return the stopCh of the container as a readonly channel.
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func (s *StopCh) Stopped() <-chan struct{} {
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return s.ch
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}
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