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53 lines
1.4 KiB
Go
53 lines
1.4 KiB
Go
/*
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Copyright 2015 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 app
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import (
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"k8s.io/klog/v2"
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"k8s.io/utils/inotify"
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libcontainercgroups "github.com/opencontainers/runc/libcontainer/cgroups"
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)
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func watchForLockfileContention(path string, done chan struct{}) error {
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watcher, err := inotify.NewWatcher()
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if err != nil {
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klog.ErrorS(err, "Unable to create watcher for lockfile")
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return err
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}
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if err = watcher.AddWatch(path, inotify.InOpen|inotify.InDeleteSelf); err != nil {
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klog.ErrorS(err, "Unable to watch lockfile")
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watcher.Close()
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return err
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}
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go func() {
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select {
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case ev := <-watcher.Event:
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klog.InfoS("inotify event", "event", ev)
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case err = <-watcher.Error:
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klog.ErrorS(err, "inotify watcher error")
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}
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close(done)
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watcher.Close()
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}()
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return nil
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}
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func isCgroup2UnifiedMode() bool {
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return libcontainercgroups.IsCgroup2UnifiedMode()
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}
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