Type Definition winapi::um::mswsock::LPFN_RIORECEIVEEX

type LPFN_RIORECEIVEEX = Option<unsafe extern "system" fn(SocketQueue: RIO_RQ, pData: PRIO_BUF, DataBufferCount: ULONG, pLocalAddress: PRIO_BUF, pRemoteAddress: PRIO_BUF, pControlContext: PRIO_BUF, pFlags: PRIO_BUF, Flags: DWORD, RequestContext: PVOID) -> c_int>;