mirror of
https://github.com/prometheus/prometheus.git
synced 2024-12-26 22:19:40 -08:00
41 lines
1.3 KiB
Go
41 lines
1.3 KiB
Go
// Copyright 2016 The etcd Authors
|
|
//
|
|
// 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.
|
|
|
|
// +build darwin
|
|
|
|
package fileutil
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
// Fsync on HFS/OSX flushes the data on to the physical drive but the drive
|
|
// may not write it to the persistent media for quite sometime and it may be
|
|
// written in out-of-order sequence. Using F_FULLFSYNC ensures that the
|
|
// physical drive's buffer will also get flushed to the media.
|
|
func Fsync(f *os.File) error {
|
|
_, _, errno := syscall.Syscall(syscall.SYS_FCNTL, f.Fd(), uintptr(syscall.F_FULLFSYNC), uintptr(0))
|
|
if errno == 0 {
|
|
return nil
|
|
}
|
|
return errno
|
|
}
|
|
|
|
// Fdatasync on darwin platform invokes fcntl(F_FULLFSYNC) for actual persistence
|
|
// on physical drive media.
|
|
func Fdatasync(f *os.File) error {
|
|
return Fsync(f)
|
|
}
|