go.etcd.io/etcd@v3.3.27+incompatible/pkg/fileutil/dir_windows.go (about) 1 // Copyright 2016 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // +build windows 16 17 package fileutil 18 19 import ( 20 "os" 21 "syscall" 22 ) 23 24 const ( 25 // PrivateDirMode grants owner to make/remove files inside the directory. 26 PrivateDirMode = 0777 27 ) 28 29 // OpenDir opens a directory in windows with write access for syncing. 30 func OpenDir(path string) (*os.File, error) { 31 fd, err := openDir(path) 32 if err != nil { 33 return nil, err 34 } 35 return os.NewFile(uintptr(fd), path), nil 36 } 37 38 func openDir(path string) (fd syscall.Handle, err error) { 39 if len(path) == 0 { 40 return syscall.InvalidHandle, syscall.ERROR_FILE_NOT_FOUND 41 } 42 pathp, err := syscall.UTF16PtrFromString(path) 43 if err != nil { 44 return syscall.InvalidHandle, err 45 } 46 access := uint32(syscall.GENERIC_READ | syscall.GENERIC_WRITE) 47 sharemode := uint32(syscall.FILE_SHARE_READ | syscall.FILE_SHARE_WRITE) 48 createmode := uint32(syscall.OPEN_EXISTING) 49 fl := uint32(syscall.FILE_FLAG_BACKUP_SEMANTICS) 50 return syscall.CreateFile(pathp, access, sharemode, nil, createmode, fl, 0) 51 }