| // 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" |
| ) |
| |
| // Set keep alive period. |
| 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(time.Duration(d.Nanoseconds()) / time.Millisecond) |
| |
| err := os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPINTVL, msecs)) |
| if err != nil { |
| return err |
| } |
| return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPIDLE, msecs)) |
| } |
