syncthing/lib/osutil/sync.go

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// Copyright (C) 2016 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package osutil
import (
"os"
"runtime"
)
func SyncFile(path string) error {
flag := 0
if runtime.GOOS == "windows" {
flag = os.O_WRONLY
}
fd, err := os.OpenFile(path, flag, 0)
if err != nil {
return err
}
defer fd.Close()
// MacOS and Windows do not flush the disk cache
return fd.Sync()
}
func SyncDir(path string) error {
if runtime.GOOS == "windows" {
// not supported by Windows
return nil
}
return SyncFile(path)
}