37 lines
1.1 KiB
Go
37 lines
1.1 KiB
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 "syscall"
|
||
|
|
|
||
|
|
type windowsLock struct {
|
||
|
|
fd syscall.Handle
|
||
|
|
}
|
||
|
|
|
||
|
|
func (fl *windowsLock) Release() error {
|
||
|
|
return syscall.Close(fl.fd)
|
||
|
|
}
|
||
|
|
|
||
|
|
func newLock(fileName string) (Releaser, error) {
|
||
|
|
pathp, err := syscall.UTF16PtrFromString(fileName)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
fd, err := syscall.CreateFile(pathp, syscall.GENERIC_READ|syscall.GENERIC_WRITE, 0, nil, syscall.CREATE_ALWAYS, syscall.FILE_ATTRIBUTE_NORMAL, 0)
|
||
|
|
if err != nil {
|
||
|
|
return nil, err
|
||
|
|
}
|
||
|
|
return &windowsLock{fd}, nil
|
||
|
|
}
|