khenaidoo | d948f77 | 2021-08-11 17:49:24 -0400 | [diff] [blame] | 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 | } |