mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-04 01:50:38 +00:00
27 lines
784 B
Go
27 lines
784 B
Go
|
// 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 (
|
||
|
|
"os"
|
||
|
|
"syscall"
|
||
|
|
"time"
|
||
|
|
)
|
||
|
|
|
||
|
|
func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
|
||
|
|
if err := fd.incref(); err != nil {
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
defer fd.decref()
|
||
|
|
// The kernel expects milliseconds so round to next highest
|
||
|
|
// millisecond.
|
||
|
|
d += (time.Millisecond - time.Nanosecond)
|
||
|
|
msecs := int(d / time.Millisecond)
|
||
|
|
if err := syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, msecs); err != nil {
|
||
|
|
return os.NewSyscallError("setsockopt", err)
|
||
|
|
}
|
||
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, msecs))
|
||
|
|
}
|