forked from cerc-io/plugeth
37 lines
1.1 KiB
Go
37 lines
1.1 KiB
Go
// Copyright 2016 The Prometheus 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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package fileutil
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import "syscall"
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type windowsLock struct {
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fd syscall.Handle
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}
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func (fl *windowsLock) Release() error {
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return syscall.Close(fl.fd)
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}
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func newLock(fileName string) (Releaser, error) {
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pathp, err := syscall.UTF16PtrFromString(fileName)
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if err != nil {
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return nil, err
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}
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fd, err := syscall.CreateFile(pathp, syscall.GENERIC_READ|syscall.GENERIC_WRITE, 0, nil, syscall.CREATE_ALWAYS, syscall.FILE_ATTRIBUTE_NORMAL, 0)
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if err != nil {
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return nil, err
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}
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return &windowsLock{fd}, nil
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}
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