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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.
//go:build aix || dragonfly || freebsd || illumos || linux || netbsd
package net
import (
"runtime"
"syscall"
"time"
)
func setKeepAliveIdle(fd *netFD, d time.Duration) error {
if d == 0 {
d = defaultTCPKeepAliveIdle
} else if d < 0 {
return nil
}
// The kernel expects seconds so round to next highest second.
secs := int(roundDurationUp(d, time.Second))
err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, secs)
runtime.KeepAlive(fd)
return wrapSyscallError("setsockopt", err)
}
func setKeepAliveInterval(fd *netFD, d time.Duration) error {
if d == 0 {
d = defaultTCPKeepAliveInterval
} else if d < 0 {
return nil
}
// The kernel expects seconds so round to next highest second.
secs := int(roundDurationUp(d, time.Second))
err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, secs)
runtime.KeepAlive(fd)
return wrapSyscallError("setsockopt", err)
}
func setKeepAliveCount(fd *netFD, n int) error {
if n == 0 {
n = defaultTCPKeepAliveCount
} else if n < 0 {
return nil
}
err := fd.pfd.SetsockoptInt(syscall.IPPROTO_TCP, syscall.TCP_KEEPCNT, n)
runtime.KeepAlive(fd)
return wrapSyscallError("setsockopt", err)
}
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