1 // Copyright (c) 2013, Suryandaru Triandana <syndtr@gmail.com>
2 // All rights reserved.
4 // Use of this source code is governed by a BSD-style license that can be
5 // found in the LICENSE file.
15 modkernel32 = syscall.NewLazyDLL("kernel32.dll")
17 procMoveFileExW = modkernel32.NewProc("MoveFileExW")
21 _MOVEFILE_REPLACE_EXISTING = 1
24 type windowsFileLock struct {
28 func (fl *windowsFileLock) release() error {
29 return syscall.Close(fl.fd)
32 func newFileLock(path string, readOnly bool) (fl fileLock, err error) {
33 pathp, err := syscall.UTF16PtrFromString(path)
37 var access, shareMode uint32
39 access = syscall.GENERIC_READ
40 shareMode = syscall.FILE_SHARE_READ
42 access = syscall.GENERIC_READ | syscall.GENERIC_WRITE
44 fd, err := syscall.CreateFile(pathp, access, shareMode, nil, syscall.OPEN_EXISTING, syscall.FILE_ATTRIBUTE_NORMAL, 0)
45 if err == syscall.ERROR_FILE_NOT_FOUND {
46 fd, err = syscall.CreateFile(pathp, access, shareMode, nil, syscall.OPEN_ALWAYS, syscall.FILE_ATTRIBUTE_NORMAL, 0)
51 fl = &windowsFileLock{fd: fd}
55 func moveFileEx(from *uint16, to *uint16, flags uint32) error {
56 r1, _, e1 := syscall.Syscall(procMoveFileExW.Addr(), 3, uintptr(unsafe.Pointer(from)), uintptr(unsafe.Pointer(to)), uintptr(flags))
66 func rename(oldpath, newpath string) error {
67 from, err := syscall.UTF16PtrFromString(oldpath)
71 to, err := syscall.UTF16PtrFromString(newpath)
75 return moveFileEx(from, to, _MOVEFILE_REPLACE_EXISTING)
78 func syncDir(name string) error { return nil }