Method do_recv

net/kernel_socket.cpp:177–179

        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);
    }
    virtual ssize_t do_recvmsg(int sockfd, struct msghdr* message, int flags, Timeout timeout) {
        return photon::net::recvmsg(sockfd, message, flags, timeout);
    }