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Sockopt: Add Windows TCP_KEEPINTVL & TCP_KEEPIDLE #4574

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Sockopt: Add Windows TCP_KEEPINTVL & TCP_KEEPIDLE #4574

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6629d33
Sockopt: Add Windows `TCP_KEEPINTVL` & `TCP_KEEPIDLE`
xqzr Mar 31, 2025
3938c0b
Add `SO_KEEPALIVE`
xqzr Mar 31, 2025
b016b7c
RM `SO_KEEPALIVE`
xqzr Mar 31, 2025
7cff874
Add `SO_KEEPALIVE`
xqzr Mar 31, 2025
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30 changes: 26 additions & 4 deletions transport/internet/sockopt_windows.go
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Original file line number Diff line number Diff line change
@@ -16,6 +16,8 @@ const (
IP_MULTICAST_IF = 9
IPV6_MULTICAST_IF = 9
IPV6_V6ONLY = 27
TCP_KEEPIDLE = 3
TCP_KEEPINTVL = 17
)

func setTFO(fd syscall.Handle, tfo int) error {
@@ -61,11 +63,21 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
if err := setTFO(syscall.Handle(fd), config.ParseTFOValue()); err != nil {
return err
}
if config.TcpKeepAliveIdle > 0 {
if config.TcpKeepAliveInterval > 0 || config.TcpKeepAliveIdle > 0 {
if config.TcpKeepAliveInterval > 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, TCP_KEEPINTVL, int(config.TcpKeepAliveInterval)); err != nil {
return errors.New("failed to set TCP_KEEPINTVL", err)
}
}
if config.TcpKeepAliveIdle > 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, TCP_KEEPIDLE, int(config.TcpKeepAliveIdle)); err != nil {
return errors.New("failed to set TCP_KEEPIDLE", err)
}
}
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 1); err != nil {
return errors.New("failed to set SO_KEEPALIVE", err)
}
} else if config.TcpKeepAliveIdle < 0 {
} else if config.TcpKeepAliveInterval < 0 || config.TcpKeepAliveIdle < 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 0); err != nil {
return errors.New("failed to unset SO_KEEPALIVE", err)
}
@@ -80,11 +92,21 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
if err := setTFO(syscall.Handle(fd), config.ParseTFOValue()); err != nil {
return err
}
if config.TcpKeepAliveIdle > 0 {
if config.TcpKeepAliveInterval > 0 || config.TcpKeepAliveIdle > 0 {
if config.TcpKeepAliveInterval > 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, TCP_KEEPINTVL, int(config.TcpKeepAliveInterval)); err != nil {
return errors.New("failed to set TCP_KEEPINTVL", err)
}
}
if config.TcpKeepAliveIdle > 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_TCP, TCP_KEEPIDLE, int(config.TcpKeepAliveIdle)); err != nil {
return errors.New("failed to set TCP_KEEPIDLE", err)
}
}
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 1); err != nil {
return errors.New("failed to set SO_KEEPALIVE", err)
}
} else if config.TcpKeepAliveIdle < 0 {
} else if config.TcpKeepAliveInterval < 0 || config.TcpKeepAliveIdle < 0 {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.SOL_SOCKET, syscall.SO_KEEPALIVE, 0); err != nil {
return errors.New("failed to unset SO_KEEPALIVE", err)
}