47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
// Copyright 2016 the Go-FUSE Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package pathfs
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import (
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"syscall"
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"time"
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"github.com/hanwen/go-fuse/fuse"
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)
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const _UTIME_NOW = ((1 << 30) - 1)
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const _UTIME_OMIT = ((1 << 30) - 2)
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// timeToTimeval - Convert time.Time to syscall.Timeval
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//
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// Note: This does not use syscall.NsecToTimespec because
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// that does not work properly for times before 1970,
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// see https://github.com/golang/go/issues/12777
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func timeToTimeval(t *time.Time) syscall.Timeval {
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var tv syscall.Timeval
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tv.Usec = int32(t.Nanosecond() / 1000)
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tv.Sec = t.Unix()
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return tv
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}
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// OSX does not have the utimensat syscall neded to implement this properly.
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// We do our best to emulate it using futimes.
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func (fs *loopbackFileSystem) Utimens(path string, a *time.Time, m *time.Time, context *fuse.Context) fuse.Status {
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tv := make([]syscall.Timeval, 2)
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if a == nil {
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tv[0].Usec = _UTIME_OMIT
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} else {
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tv[0] = timeToTimeval(a)
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}
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if m == nil {
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tv[1].Usec = _UTIME_OMIT
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} else {
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tv[1] = timeToTimeval(m)
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}
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err := syscall.Utimes(fs.GetPath(path), tv)
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return fuse.ToStatus(err)
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}
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