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47 lines
1.4 KiB
47 lines
1.4 KiB
6 years ago
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// Copyright 2016 The etcd Authors
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//
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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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// +build windows
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package fileutil
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import (
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"os"
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"syscall"
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)
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// OpenDir opens a directory in windows with write access for syncing.
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func OpenDir(path string) (*os.File, error) {
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fd, err := openDir(path)
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if err != nil {
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return nil, err
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}
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return os.NewFile(uintptr(fd), path), nil
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}
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func openDir(path string) (fd syscall.Handle, err error) {
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if len(path) == 0 {
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return syscall.InvalidHandle, syscall.ERROR_FILE_NOT_FOUND
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}
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pathp, err := syscall.UTF16PtrFromString(path)
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if err != nil {
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return syscall.InvalidHandle, err
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}
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access := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE)
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sharemode := uint32(syscall.FILE_SHARE_READ | syscall.FILE_SHARE_WRITE)
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createmode := uint32(syscall.OPEN_EXISTING)
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fl := uint32(syscall.FILE_FLAG_BACKUP_SEMANTICS)
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return syscall.CreateFile(pathp, access, sharemode, nil, createmode, fl, 0)
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}
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