59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
//go:build !windows
|
|
// +build !windows
|
|
|
|
// Copyright (c) 2015-2021 MinIO, Inc.
|
|
//
|
|
// This file is part of MinIO Object Storage stack
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package cmd
|
|
|
|
import (
|
|
"errors"
|
|
"io"
|
|
"io/ioutil"
|
|
"os"
|
|
"time"
|
|
|
|
"github.com/djherbis/atime"
|
|
)
|
|
|
|
// Return error if Atime is disabled on the O/S
|
|
func checkAtimeSupport(dir string) (err error) {
|
|
file, err := ioutil.TempFile(dir, "prefix")
|
|
if err != nil {
|
|
return
|
|
}
|
|
defer os.Remove(file.Name())
|
|
defer file.Close()
|
|
finfo1, err := os.Stat(file.Name())
|
|
if err != nil {
|
|
return
|
|
}
|
|
// add a sleep to ensure atime change is detected
|
|
time.Sleep(10 * time.Millisecond)
|
|
|
|
if _, err = io.Copy(ioutil.Discard, file); err != nil {
|
|
return
|
|
}
|
|
|
|
finfo2, err := os.Stat(file.Name())
|
|
|
|
if atime.Get(finfo2).Equal(atime.Get(finfo1)) {
|
|
return errors.New("Atime not supported")
|
|
}
|
|
return
|
|
}
|