1// Copyright 2018 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5package poll
6
7import "syscall"
8
9// Fsync wraps syscall.Fsync.
10func (fd *FD) Fsync() error {
11	if err := fd.incref(); err != nil {
12		return err
13	}
14	defer fd.decref()
15	return syscall.Fsync(fd.Sysfd)
16}
17