1// Copyright 2017 Google Inc. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package fs
16
17import (
18	"fmt"
19	"os"
20	"syscall"
21	"time"
22)
23
24func (osFs) InodeNumber(info os.FileInfo) (number uint64, err error) {
25	sys := info.Sys()
26	darwinStats, ok := sys.(*syscall.Stat_t)
27	if ok {
28		return darwinStats.Ino, nil
29	}
30	return 0, fmt.Errorf("%v is not a *syscall.Stat_t", sys)
31}
32
33func (osFs) DeviceNumber(info os.FileInfo) (number uint64, err error) {
34	sys := info.Sys()
35	darwinStats, ok := sys.(*syscall.Stat_t)
36	if ok {
37		return uint64(darwinStats.Dev), nil
38	}
39	return 0, fmt.Errorf("%v is not a *syscall.Stat_t", sys)
40}
41
42func (osFs) PermTime(info os.FileInfo) (when time.Time, err error) {
43	sys := info.Sys()
44	darwinStats, ok := sys.(*syscall.Stat_t)
45	if ok {
46		return time.Unix(darwinStats.Ctimespec.Sec, darwinStats.Ctimespec.Nsec), nil
47	}
48	return time.Time{}, fmt.Errorf("%v is not a *syscall.Stat_t", sys)
49}
50