go.etcd.io/etcd@v3.3.27+incompatible/pkg/fileutil/sync_linux.go (about) 1 // Copyright 2016 The etcd Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // +build linux 16 17 package fileutil 18 19 import ( 20 "os" 21 "syscall" 22 ) 23 24 // Fsync is a wrapper around file.Sync(). Special handling is needed on darwin platform. 25 func Fsync(f *os.File) error { 26 return f.Sync() 27 } 28 29 // Fdatasync is similar to fsync(), but does not flush modified metadata 30 // unless that metadata is needed in order to allow a subsequent data retrieval 31 // to be correctly handled. 32 func Fdatasync(f *os.File) error { 33 return syscall.Fdatasync(int(f.Fd())) 34 }