mirror of https://github.com/minio/minio.git
42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
/*
|
|
* 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 disk
|
|
|
|
import (
|
|
"os"
|
|
|
|
"github.com/ncw/directio"
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
// OpenFileDirectIO - bypass kernel cache.
|
|
func OpenFileDirectIO(filePath string, flag int, perm os.FileMode) (*os.File, error) {
|
|
return directio.OpenFile(filePath, flag, perm)
|
|
}
|
|
|
|
// DisableDirectIO - disables directio mode.
|
|
func DisableDirectIO(f *os.File) error {
|
|
fd := f.Fd()
|
|
_, err := unix.FcntlInt(fd, unix.F_NOCACHE, 0)
|
|
return err
|
|
}
|
|
|
|
// AlignedBlock - pass through to directio implementation.
|
|
func AlignedBlock(BlockSize int) []byte {
|
|
return directio.AlignedBlock(BlockSize)
|
|
}
|