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A call file.Sync on OSX doesn't guarantee actual persistence on physical drive media as the data can be cached in physical drive's buffers. Hence calls to file.Sync need to be replaced with fcntl(F_FULLFSYNC).
35 lines
1.0 KiB
Go
35 lines
1.0 KiB
Go
// Copyright 2016 CoreOS, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build linux
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package fileutil
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import (
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"os"
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"syscall"
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)
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// Fsync is a wrapper around file.Sync(). Special handling is needed on darwin platform.
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func Fsync(f *os.File) error {
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return f.Sync()
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}
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// Fdatasync is similar to fsync(), but does not flush modified metadata
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// unless that metadata is needed in order to allow a subsequent data retrieval
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// to be correctly handled.
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func Fdatasync(f *os.File) error {
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return syscall.Fdatasync(int(f.Fd()))
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}
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