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// Copyright 2018 the Go-FUSE Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package utimens
import (
"syscall"
"time"
"github.com/hanwen/go-fuse/v2/fuse"
)
// timeToTimeval converts time.Time to syscall.Timeval
func timeToTimeval(t *time.Time) syscall.Timeval {
// Note: This does not use syscall.NsecToTimespec because
// that does not work properly for times before 1970,
// see https://github.com/golang/go/issues/12777
var tv syscall.Timeval
tv.Usec = int32(t.Nanosecond() / 1000)
tv.Sec = t.Unix()
return tv
}
// Fill converts a and m to a syscall.Timeval slice that can be passed
// to syscall.Utimes. Missing values (if any) are taken from attr
func Fill(a *time.Time, m *time.Time, attr *fuse.Attr) []syscall.Timeval {
if a == nil {
a2 := time.Unix(int64(attr.Atime), int64(attr.Atimensec))
a = &a2
}
if m == nil {
m2 := time.Unix(int64(attr.Mtime), int64(attr.Mtimensec))
m = &m2
}
tv := make([]syscall.Timeval, 2)
tv[0] = timeToTimeval(a)
tv[1] = timeToTimeval(m)
return tv
}
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