Method do_sendmsg

net/kernel_socket.cpp:174–176

        return photon::net::send(sockfd, buf, count, flags, timeout);
    }
    virtual ssize_t do_sendmsg(int sockfd, const struct msghdr* message, int flags, Timeout timeout) {
        return photon::net::sendmsg(sockfd, message, flags, timeout);
    }
    virtual ssize_t do_recv(int sockfd, void* buf, size_t count, int flags, Timeout timeout) {
        return photon::net::recv(sockfd, buf, count, flags, timeout);
    }