diff options
Diffstat (limited to 'pkg/tcpip/tcpip.go')
| -rw-r--r-- | pkg/tcpip/tcpip.go | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/pkg/tcpip/tcpip.go b/pkg/tcpip/tcpip.go index c4076666a..c5d79da5e 100644 --- a/pkg/tcpip/tcpip.go +++ b/pkg/tcpip/tcpip.go @@ -288,6 +288,12 @@ type ControlMessages struct { // Timestamp is the time (in ns) that the last packed used to create // the read data was received. Timestamp int64 + + // HasInq indicates whether Inq is valid/set. + HasInq bool + + // Inq is the number of bytes ready to be received. + Inq int32 } // Endpoint is the interface implemented by transport protocols (e.g., tcp, udp) @@ -383,6 +389,10 @@ type Endpoint interface { // *Option types. GetSockOpt(opt interface{}) *Error + // GetSockOptInt gets a socket option for simple cases where a return + // value has the int type. + GetSockOptInt(SockOpt) (int, *Error) + // State returns a socket's lifecycle state. The returned value is // protocol-specific and is primarily used for diagnostics. State() uint32 @@ -408,6 +418,18 @@ type WriteOptions struct { EndOfRecord bool } +// SockOpt represents socket options which values have the int type. +type SockOpt int + +const ( + // ReceiveQueueSizeOption is used in GetSockOpt to specify that the number of + // unread bytes in the input buffer should be returned. + ReceiveQueueSizeOption SockOpt = iota + + // TODO(b/137664753): convert all int socket options to be handled via + // GetSockOptInt. +) + // ErrorOption is used in GetSockOpt to specify that the last error reported by // the endpoint should be cleared and returned. type ErrorOption struct{} @@ -424,10 +446,6 @@ type ReceiveBufferSizeOption int // unread bytes in the output buffer should be returned. type SendQueueSizeOption int -// ReceiveQueueSizeOption is used in GetSockOpt to specify that the number of -// unread bytes in the input buffer should be returned. -type ReceiveQueueSizeOption int - // V6OnlyOption is used by SetSockOpt/GetSockOpt to specify whether an IPv6 // socket is to be restricted to sending and receiving IPv6 packets only. type V6OnlyOption int |