48     virtual Status getsockname(Fd sock, sockaddr* addr, socklen_t* addrlen) const = 0;
50     virtual Status getsockopt(Fd sock, int level, int optname, void *optval,
53     virtual Status setsockopt(Fd sock, int level, int optname, const void* optval,
56     virtual Status bind(Fd sock, const sockaddr* addr, socklen_t addrlen) const = 0;
58     virtual Status connect(Fd sock, const sockaddr* addr, socklen_t addrlen) const = 0;
70     virtual StatusOr<size_t> sendto(Fd sock, const Slice buf, int flags, const sockaddr* dst,
73     virtual StatusOr<Slice> recvfrom(Fd sock, const Slice dst, int flags, sockaddr* src,
113     StatusOr<SockaddrT> getsockname(Fd sock) const {  in getsockname()  argument
116         RETURN_IF_NOT_OK(getsockname(sock, asSockaddrPtr(&addr), &addrlen));  in getsockname()
121     Status getsockopt(Fd sock, int level, int optname, void* optval, socklen_t* optlen) const {  in getsockopt()  argument
122         return getsockopt(sock, level, optname, optval, optlen);  in getsockopt()
126     Status setsockopt(Fd sock, int level, int optname, const SockoptT& opt) const {  in setsockopt()  argument
127         return setsockopt(sock, level, optname, &opt, sizeof(opt));  in setsockopt()
131     Status bind(Fd sock, const SockaddrT& addr) const {  in bind()  argument
132         return bind(sock, asSockaddrPtr(&addr), sizeof(addr));  in bind()
136     Status connect(Fd sock, const SockaddrT& addr) const {  in connect()  argument
137         return connect(sock, asSockaddrPtr(&addr), sizeof(addr));  in connect()
158     StatusOr<size_t> sendto(Fd sock, const Slice buf, int flags, const SockaddrT& dst) const {  in sendto()  argument
159         return sendto(sock, buf, flags, asSockaddrPtr(&dst), sizeof(dst));  in sendto()
163     StatusOr<Slice> recvfrom(Fd sock, const Slice dst, int flags) const {  in recvfrom()  argument
164         return recvfrom(sock, dst, flags, nullptr, nullptr);  in recvfrom()
168     StatusOr<std::pair<Slice, SockaddrT>> recvfrom(Fd sock, const Slice dst, int flags) const {  in recvfrom()  argument
171         ASSIGN_OR_RETURN(auto used, recvfrom(sock, dst, flags, asSockaddrPtr(&addr), &addrlen));  in recvfrom()