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 linuxStats, ok := sys.(*syscall.Stat_t) 27 if ok { 28 return linuxStats.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 linuxStats, ok := sys.(*syscall.Stat_t) 36 if ok { 37 return linuxStats.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 linuxStats, ok := sys.(*syscall.Stat_t) 45 if ok { 46 return time.Unix(linuxStats.Ctim.Sec, linuxStats.Ctim.Nsec), nil 47 } 48 return time.Time{}, fmt.Errorf("%v is not a *syscall.Stat_t", sys) 49} 50