blob: 7415c763c501bb6e0261a6b4584e16d0f9f81f5d [file] [log] [blame]
// 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.
package net
import (
const sysTCP_KEEPINTVL = 0x101
func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
// The kernel expects seconds so round to next highest second.
d += (time.Second - time.Nanosecond)
secs := int(d.Seconds())
switch err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, sysTCP_KEEPINTVL, secs); err {
case nil, syscall.ENOPROTOOPT: // OS X 10.7 and earlier don't support this option
return wrapSyscallError("setsockopt", err)
err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE, secs)
return wrapSyscallError("setsockopt", err)