DefSocketFactor
DefSocketOptions
DefSocketPriority
INVALID_SOCKET
SD_BOTH
SD_RECEIVE
SD_SEND
SOCKET_ERROR
so_CloseClean
so_CloseRxClean
so_CloseShutdown
so_CloseTxClean
so_SetIoBuff
so_SetRcvBuff
so_SetSndBuff
so_TcpNoDelay
so_UseLinger0