mirror of
https://github.com/kubernetes/node-problem-detector.git
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48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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 util
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// Tomb is used to control the lifecycle of a goroutine.
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type Tomb struct {
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stop chan struct{}
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done chan struct{}
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}
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// NewTomb creates a new tomb.
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func NewTomb() *Tomb {
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return &Tomb{
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stop: make(chan struct{}),
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done: make(chan struct{}),
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}
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}
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// Stop is used to stop the goroutine outside.
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func (t *Tomb) Stop() {
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close(t.stop)
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<-t.done
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}
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// Stopping is used by the goroutine to tell whether it should stop.
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func (t *Tomb) Stopping() <-chan struct{} {
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return t.stop
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}
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// Done is used by the goroutine to inform that it has stopped.
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func (t *Tomb) Done() {
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close(t.done)
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}
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