0aefb52807
It looks like this function was converting the time (`windows.NsecToTimespec()`),
only to convert it back (`windows.TimespecToNsec()`). This became clear when
moving the lines together:
```go
ctimespec := windows.NsecToTimespec(ctime.UnixNano())
c := windows.NsecToFiletime(windows.TimespecToNsec(ctimespec))
```
And looking at the Golang code, it looks like they're indeed the exact reverse:
```go
func TimespecToNsec(ts Timespec) int64 { return int64(ts.Sec)*1e9 + int64(ts.Nsec) }
func NsecToTimespec(nsec int64) (ts Timespec) {
ts.Sec = nsec / 1e9
ts.Nsec = nsec % 1e9
return
}
```
While modifying this code, also renaming the `e` variable to a more common `err`.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
/*
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Copyright The containerd 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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package archive
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import (
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"time"
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"golang.org/x/sys/windows"
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)
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// chtimes will set the create time on a file using the given modtime.
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// This requires calling SetFileTime and explicitly including the create time.
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func chtimes(path string, atime, mtime time.Time) error {
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pathp, err := windows.UTF16PtrFromString(path)
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if err != nil {
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return err
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}
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h, err := windows.CreateFile(pathp,
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windows.FILE_WRITE_ATTRIBUTES, windows.FILE_SHARE_WRITE, nil,
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windows.OPEN_EXISTING, windows.FILE_FLAG_BACKUP_SEMANTICS, 0)
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if err != nil {
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return err
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}
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defer windows.Close(h)
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c := windows.NsecToFiletime(mtime.UnixNano())
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return windows.SetFileTime(h, &c, nil, nil)
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}
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