// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you 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.

//go:build linux || dragonfly || freebsd || netbsd || openbsd || solaris
// +build linux dragonfly freebsd netbsd openbsd solaris

package memlog

import (
	"os"
)

// syncFile implements the fsync operation for most *nix systems.
// The call is retried if EINTR or EAGAIN is returned.
func syncFile(f *os.File) error {
	// best effort.
	for {
		err := f.Sync()
		if err == nil || !isRetryErr(err) {
			return err
		}
	}
}
