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// Copyright 2009 The Go 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 os
import (
"syscall"
"time"
)
func sameFile(fs1, fs2 *fileStat) bool {
stat1 := fs1.sys.(*syscall.Stat_t)
stat2 := fs2.sys.(*syscall.Stat_t)
return stat1.Dev == stat2.Dev && stat1.Ino == stat2.Ino
}
func fileInfoFromStat(st *syscall.Stat_t, name string) FileInfo {
fs := &fileStat{
name: basename(name),
size: int64(st.Size),
modTime: timespecToTime(st.Mtime, st.MtimeNsec),
sys: st,
}
fs.mode = FileMode(st.Mode & 0777)
switch st.Mode & syscall.S_IFMT {
case syscall.S_IFBLK:
fs.mode |= ModeDevice
case syscall.S_IFCHR:
fs.mode |= ModeDevice | ModeCharDevice
case syscall.S_IFDIR:
fs.mode |= ModeDir
case syscall.S_IFIFO:
fs.mode |= ModeNamedPipe
case syscall.S_IFLNK:
fs.mode |= ModeSymlink
case syscall.S_IFREG:
// nothing to do
case syscall.S_IFSOCK:
fs.mode |= ModeSocket
}
if st.Mode&syscall.S_ISGID != 0 {
fs.mode |= ModeSetgid
}
if st.Mode&syscall.S_ISUID != 0 {
fs.mode |= ModeSetuid
}
if st.Mode&syscall.S_ISVTX != 0 {
fs.mode |= ModeSticky
}
return fs
}
func timespecToTime(sec, nsec int64) time.Time {
return time.Unix(sec, nsec)
}
// For testing.
func atime(fi FileInfo) time.Time {
st := fi.Sys().(*syscall.Stat_t)
return timespecToTime(st.Atime, st.AtimeNsec)
}
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