func so_linger(fd int, d time.Duration) error {
if d == 0 {
return os.NewSyscallError("so_linger", syscall.SetsockoptLinger(fd, syscall.SOL_SOCKET, syscall.SO_LINGER, &syscall.Linger{0, 0}))
}
// cargo cult from src/net/tcpsockopt_unix.go
d += (time.Second - time.Nanosecond)
l := syscall.Linger{1, int32(d.Seconds())}
return os.NewSyscallError("so_linger", syscall.SetsockoptLinger(fd, syscall.SOL_SOCKET, syscall.SO_LINGER, &l))
}
func setSockopts(fd int) error {
err := syscall.SetNonblock(fd, true)
if err != nil {
return err
}
linger := syscall.Linger{Onoff: 1, Linger: 0}
syscall.SetsockoptLinger(fd, syscall.SOL_SOCKET, syscall.SO_LINGER, &linger)
return syscall.SetsockoptInt(fd, syscall.SOL_TCP, syscall.TCP_QUICKACK, 0)
}
func setLinger(fd int, sec int) error {
var l syscall.Linger
if sec >= 0 {
l.Onoff = 1
l.Linger = int32(sec)
} else {
l.Onoff = 0
l.Linger = 0
}
return os.NewSyscallError("setsockopt", syscall.SetsockoptLinger(fd, syscall.SOL_SOCKET, syscall.SO_LINGER, &l))
}
func setLinger(fd *netFD, sec int) os.Error {
var l syscall.Linger
if sec >= 0 {
l.Onoff = 1
l.Linger = int32(sec)
} else {
l.Onoff = 0
l.Linger = 0
}
e := syscall.SetsockoptLinger(fd.fd, syscall.SOL_SOCKET, syscall.SO_LINGER, &l)
return os.NewSyscallError("setsockopt", e)
}
func setLinger(fd *netFD, sec int) error {
var l syscall.Linger
if sec >= 0 {
l.Onoff = 1
l.Linger = int32(sec)
} else {
l.Onoff = 0
l.Linger = 0
}
fd.incref()
defer fd.decref()
return os.NewSyscallError("setsockopt", syscall.SetsockoptLinger(fd.sysfd, syscall.SOL_SOCKET, syscall.SO_LINGER, &l))
}
func setLinger(fd *netFD, sec int) error { // 设置Linger
var l syscall.Linger // 声明Linger结构
if sec >= 0 { // sec大于等于0，开启Linger
l.Onoff = 1
l.Linger = int32(sec)
} else { // sec小于0，关闭Linger
l.Onoff = 0
l.Linger = 0
}
if err := fd.incref(); err != nil { // 先增加fd的引用计数
return err
}
defer fd.decref() // 设置完成后减小fd的引用计数
return os.NewSyscallError("setsockopt", syscall.SetsockoptLinger(fd.sysfd, syscall.SOL_SOCKET, syscall.SO_LINGER, &l))
}
