56 lines
1.3 KiB
Go
56 lines
1.3 KiB
Go
// +build !windows
|
|
|
|
/*
|
|
* MinIO Cloud Storage, (C) 2019-2020 MinIO, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
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
|
|
}
|