// Copyright 2019 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 dragonfly freebsd linux netbsd openbsd

package poll

import (
	
	
)

func fcntl( int,  int,  int) (int, error) {
	, ,  := syscall.Syscall(unix.FcntlSyscall, uintptr(), uintptr(), uintptr())
	if  != 0 {
		return int(), syscall.Errno()
	}
	return int(), nil
}