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https://github.com/optim-enterprises-bv/kubernetes.git
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46 lines
1.1 KiB
Go
46 lines
1.1 KiB
Go
/*
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Copyright 2014 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 kubectl
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import (
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"os"
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"os/signal"
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"k8s.io/kubernetes/pkg/watch"
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)
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// WatchLoop loops, passing events in w to fn.
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// If user sends interrupt signal, shut down cleanly. Otherwise, never return.
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func WatchLoop(w watch.Interface, fn func(watch.Event) error) {
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signals := make(chan os.Signal, 1)
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signal.Notify(signals, os.Interrupt)
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defer signal.Stop(signals)
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for {
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select {
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case event, ok := <-w.ResultChan():
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if !ok {
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return
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}
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if err := fn(event); err != nil {
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w.Stop()
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}
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case <-signals:
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w.Stop()
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}
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}
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}
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