mirror of
https://github.com/prometheus/prometheus.git
synced 2024-11-16 10:34:06 -08:00
33 lines
921 B
Go
33 lines
921 B
Go
// Copyright 2016 The Prometheus 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 fileutil
|
|
|
|
import "os"
|
|
|
|
type plan9Lock struct {
|
|
f *os.File
|
|
}
|
|
|
|
func (l *plan9Lock) Release() error {
|
|
return l.f.Close()
|
|
}
|
|
|
|
func newLock(fileName string) (Releaser, error) {
|
|
f, err := os.OpenFile(path, os.O_RDWR|os.O_CREATE, os.ModeExclusive|0o666)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return &plan9Lock{f}, nil
|
|
}
|