| // 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)) | |
| } |