Method rcv

C++/dgramclient.cpp:73–83

* @brief Receive data from a connected DGRAM socket * * If a datagram socket is connected, this function may be called to receive * data sent from the host connected to. * * @param buf Area to write the data to * @param len How many data we want to receive * @param flags Flags to be passed to `recv(2)` * * @retval >0 n bytes were received. * @retval 0 0 bytes were received. (EOF?) * @re

 * @retval -1 Something went wrong.
 */
ssize_t dgram_client_socket::rcv(void* buf, size_t len, int flags) {
    ssize_t bytes;

    memset(buf, 0, len);

    if (-1 == (bytes = recv(sfd, buf, len, flags)))
        throw socket_exception(__FILE__, __LINE__,
                               "dgram_client_socket::rcv() - recv() failed!");

    return bytes;
}

/**
 * @brief Receive data from connected datagram socket