Method handleStatsReport

Server/src/bmp/parseBMP.cpp:720–830

* Parse and return back the stats report * * \param [in] sock Socket to read the stats message from * \param [out] stats Reference to stats report data * * \return true if error, false if no error */

 * \return true if error, false if no error
 */
bool parseBMP::handleStatsReport(int sock, MsgBusInterface::obj_stats_report &stats) {
    unsigned long stats_cnt = 0; // Number of counter stat objects to follow
    unsigned char b[8];

    if ((Recv(sock, b, 4, MSG_WAITALL)) != 4)
        throw "ERROR:  Cannot proceed since we cannot read the stats mon counter";

    bmp_len -= 4;

    // Reverse the bytes and update int
    bgp::SWAP_BYTES(b, 4);
    memcpy((void*) &stats_cnt, (void*) b, 4);

    SELF_DEBUG("sock = %d : STATS REPORT Count: %u (%d %d %d %d)",
                sock, stats_cnt, b[0], b[1], b[2], b[3]);

    // Vars used per counter object
    unsigned short stat_type = 0;
    unsigned short stat_len = 0;

    // Loop through each stats object
    for (unsigned long i = 0; i < stats_cnt; i++) {

        if ((Recv(sock, &stat_type, 2, MSG_WAITALL)) != 2)
            throw "ERROR: Cannot proceed since we cannot read the stats type.";
        if ((Recv(sock, &stat_len, 2, MSG_WAITALL)) != 2)
            throw "ERROR: Cannot proceed since we cannot read the stats len.";

        bmp_len -= 4;

        // convert integer from network to host bytes
        bgp::SWAP_BYTES(&stat_type);
        bgp::SWAP_BYTES(&stat_len);

        SELF_DEBUG("sock=%d STATS: %lu : TYPE = %u LEN = %u", sock,
                    i, stat_type, stat_len);

        // check if this is a 32 bit number  (default)
        if (stat_len == 4 or stat_len == 8) {

            // Read the stats counter - 32/64 bits
            if ((Recv(sock, b, stat_len, MSG_WAITALL)) == stat_len) {
                bmp_len -= stat_len;

                // convert the bytes from network to host order
                bgp::SWAP_BYTES(b, stat_len);

                // Update the table structure based on the stats counter type
                switch (stat_type) {
                    case STATS_PREFIX_REJ:
                        memcpy((void*) &stats.prefixes_rej, (void*) b, stat_len);
                        break;
                    case STATS_DUP_PREFIX:
                        memcpy((void*) &stats.known_dup_prefixes, (void*) b, stat_len);
                        break;
                    case STATS_DUP_WITHDRAW:
                        memcpy((void*) &stats.known_dup_withdraws, (void*) b, stat_len);
                        break;