// Copyright 2009 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 freebsd linux netbsd

package net

import (
	
	
	
)

func setKeepAlivePeriod( *netFD,  time.Duration) error {
	// The kernel expects seconds so round to next highest second.
	 := int(roundDurationUp(, time.Second))
	if  := .pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, );  != nil {
		return wrapSyscallError("setsockopt", )
	}
	 := .pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, )
	runtime.KeepAlive()
	return wrapSyscallError("setsockopt", )
}