45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
|
/*
|
||
|
|
Copyright 2015 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 app
|
||
|
|
|
||
|
|
import (
|
||
|
|
"github.com/golang/glog"
|
||
|
|
"golang.org/x/exp/inotify"
|
||
|
|
)
|
||
|
|
|
||
|
|
func watchForLockfileContention(path string, done chan struct{}) error {
|
||
|
|
watcher, err := inotify.NewWatcher()
|
||
|
|
if err != nil {
|
||
|
|
glog.Errorf("unable to create watcher for lockfile: %v", err)
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
if err = watcher.AddWatch(path, inotify.IN_OPEN|inotify.IN_DELETE_SELF); err != nil {
|
||
|
|
glog.Errorf("unable to watch lockfile: %v", err)
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
go func() {
|
||
|
|
select {
|
||
|
|
case ev := <-watcher.Event:
|
||
|
|
glog.Infof("inotify event: %v", ev)
|
||
|
|
case err = <-watcher.Error:
|
||
|
|
glog.Errorf("inotify watcher error: %v", err)
|
||
|
|
}
|
||
|
|
close(done)
|
||
|
|
}()
|
||
|
|
return nil
|
||
|
|
}
|