| Safe Haskell | None |
|---|---|
| Language | Haskell98 |
Network.Socket.Msg
- data CMsg = CMsg {}
- class Binary a => CMsgable a where
- getCMsgLevel :: a -> Int
- getCMsgType :: a -> Int
- toCMsg :: a -> CMsg
- fromCMsg :: CMsg -> Maybe a
- filterCMsgs :: CMsgable a => a -> [CMsg] -> [CMsg]
- sendMsg :: Socket -> ByteString -> SockAddr -> [CMsg] -> IO ()
- recvMsg :: Socket -> Int -> IO (ByteString, SockAddr, [CMsg])
Documentation
class Binary a => CMsgable a where Source
Class for binary structures that can be used as control messages (cmsg(3)).
Complete definition requires for a type to be an instance of Binary class, as well as to provide getCMsgLevel and getCMsgType methods.
Note that the argument of getCMsgLevel and getCMsgType methods should not be used as it might be undefined.
Minimal complete definition
filterCMsgs :: CMsgable a => a -> [CMsg] -> [CMsg] Source
Filter specific kind of control messages.
Example: filterCMsgs (undefined :: IpPktInfo) cmsgs