libgo/go/os/stat.go

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build !darwin
   6 // +build !freebsd
   7 // +build !linux
   8 // +build !netbsd
   9 // +build !openbsd
  10 // +build !solaris
  11
  12 package os
  13
  14 import (
  15         "syscall"
  16         "time"
  17 )
  18
  19 func sameFile(fs1, fs2 *fileStat) bool {
  20         stat1 := fs1.sys.(*syscall.Stat_t)
  21         stat2 := fs2.sys.(*syscall.Stat_t)
  22         return stat1.Dev == stat2.Dev && stat1.Ino == stat2.Ino
  23 }
  24
  25 func fileInfoFromStat(st *syscall.Stat_t, name string) FileInfo {
  26         fs := &fileStat{
  27                 name:    basename(name),
  28                 size:    int64(st.Size),
  29                 modTime: timespecToTime(st.Mtim),
  30                 sys:     st,
  31         }
  32         fs.mode = FileMode(st.Mode & 0777)
  33         switch st.Mode & syscall.S_IFMT {
  34         case syscall.S_IFBLK, syscall.S_IFCHR:
  35                 fs.mode |= ModeDevice
  36         case syscall.S_IFDIR:
  37                 fs.mode |= ModeDir
  38         case syscall.S_IFIFO:
  39                 fs.mode |= ModeNamedPipe
  40         case syscall.S_IFLNK:
  41                 fs.mode |= ModeSymlink
  42         case syscall.S_IFREG:
  43                 // nothing to do
  44         case syscall.S_IFSOCK:
  45                 fs.mode |= ModeSocket
  46         }
  47         if st.Mode&syscall.S_ISGID != 0 {
  48                 fs.mode |= ModeSetgid
  49         }
  50         if st.Mode&syscall.S_ISUID != 0 {
  51                 fs.mode |= ModeSetuid
  52         }
  53         return fs
  54 }
  55
  56 func timespecToTime(ts syscall.Timespec) time.Time {
  57         return time.Unix(int64(ts.Sec), int64(ts.Nsec))
  58 }
  59
  60 // For testing.
  61 func atime(fi FileInfo) time.Time {
  62         return timespecToTime(fi.Sys().(*syscall.Stat_t).Atim)
  63 }