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- // 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 (
- "runtime"
- "syscall"
- "time"
- )
- // syscall.TCP_KEEPINTVL is missing on some darwin architectures.
- const sysTCP_KEEPINTVL = 0x101
- func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
- // The kernel expects seconds so round to next highest second.
- secs := int(roundDurationUp(d, time.Second))
- if err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, sysTCP_KEEPINTVL, secs); err != nil {
- return wrapSyscallError("setsockopt", err)
- }
- err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE, secs)
- runtime.KeepAlive(fd)
- return wrapSyscallError("setsockopt", err)
- }
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