blob: 6705a3e524cd4fc8417fc964556e56dd96505278 [file] [log] [blame]
// Copyright 2018 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build aix dragonfly freebsd js,wasm linux nacl netbsd openbsd solaris
package poll
import "syscall"
// Fsync wraps syscall.Fsync.
func (fd *FD) Fsync() error {
if err := fd.incref(); err != nil {
return err
defer fd.decref()
return syscall.Fsync(fd.Sysfd)
func fcntl(fd int, cmd int, arg int) (int, error) {
r, _, e := syscall.Syscall(syscall.SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
if e != 0 {
return int(r), syscall.Errno(e)
return int(r), nil