Пример #1
0
static int tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
    int i;
    int chan;

    /* This routine queues messages between two instances of T.38 processing */
    chan = (intptr_t) user_data;
    if (t38_simulate_incrementing_repeats)
    {
        for (i = 0;  i < count;  i++)
        {
            span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d\n", t38_subst_seq[chan], len);

            if (g1050_put(g1050_path[chan], buf, len, t38_subst_seq[chan], when) < 0)
                printf("Lost packet %d\n", t38_subst_seq[chan]);
            t38_subst_seq[chan] = (t38_subst_seq[chan] + 1) & 0xFFFF;
        }
    }
    else
    {
        span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);

        for (i = 0;  i < count;  i++)
        {
            if (g1050_put(g1050_path[chan], buf, len, s->tx_seq_no, when) < 0)
                printf("Lost packet %d\n", s->tx_seq_no);
        }
    }
    return 0;
}
Пример #2
0
static int tx_packet_handler_b(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
    t38_terminal_state_t *t;
    int i;
    static int subst_seq = 0;

    /* This routine queues messages between two instances of T.38 processing */
    t = (t38_terminal_state_t *) user_data;
    if (simulate_incrementing_repeats)
    {
        for (i = 0;  i < count;  i++)
        {
            span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d\n", subst_seq, len);

            g1050_put(path_b_to_a, buf, len, subst_seq, when);
            subst_seq = (subst_seq + 1) & 0xFFFF;
        }
    }
    else
    {
        span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);

        for (i = 0;  i < count;  i++)
            g1050_put(path_b_to_a, buf, len, s->tx_seq_no, when);
    }
    return 0;
}
static int t31_tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
    int i;

    /* This routine queues messages between two instances of T.38 processing, from the T.31 modem side. */
    span_log(t38_core_get_logging_state(s), SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);

    for (i = 0;  i < count;  i++)
    {
        if (g1050_put(path_b_to_a, buf, len, s->tx_seq_no, when) < 0)
            printf("Lost packet %d\n", s->tx_seq_no);
    }
    return 0;
}
Пример #4
0
static int t38_tx_packet_handler(t38_core_state_t *s, void *user_data, const uint8_t *buf, int len, int count)
{
    t31_state_t *t;
    int i;

    /* This routine queues messages between two instances of T.38 processing */
    t = (t31_state_t *) user_data;
    span_log(&s->logging, SPAN_LOG_FLOW, "Send seq %d, len %d, count %d\n", s->tx_seq_no, len, count);

    for (i = 0;  i < count;  i++)
    {
        if (g1050_put(path_a_to_b, buf, len, s->tx_seq_no, when) < 0)
            printf("Lost packet %d\n", s->tx_seq_no);
    }
    return 0;
}
Пример #5
0
int main(int argc, char *argv[])
{
    g1050_state_t *s;
    double *packet_arrival_times;
    int packets_per_sec;
    int num_packets;
    int model_no;
    int speed_pattern_no;
    int simulation_time;
    int i;
    int len;
    uint8_t put_pkt[256];
    uint8_t get_pkt[256];
    int put_pkt_len;
    int get_pkt_len;
    int get_seq_no;
    double get_departure_time;
    double get_arrival_time;
    int packets_put;
    int packets_really_put;
    int packets_got;
    int oos_packets_got;
    int missing_packets_got;
    int highest_seq_no_got;
    int opt;
    FILE *out_file;
#if defined(ENABLE_GUI)
    int use_gui;
#endif

#if defined(ENABLE_GUI)
    use_gui = FALSE;
#endif
    model_no = MODEL_NO;
    speed_pattern_no = SPEED_PATTERN_NO;
    simulation_time = SIMULATION_TIME;
    while ((opt = getopt(argc, argv, "gm:s:t:")) != -1)
    {
        switch (opt)
        {
        case 'g':
#if defined(ENABLE_GUI)
            use_gui = TRUE;
#else
            fprintf(stderr, "Graphical monitoring not available\n");
            exit(2);
#endif
            break;
        case 'm':
            model_no = optarg[0] - 'A' + 1;
            if (model_no < 0  ||  model_no > 8)
            {
                fprintf(stderr, "Bad model ID '%s'\n", optarg);
                exit(2);
            }
            break;
        case 's':
            speed_pattern_no = atoi(optarg);
            if (speed_pattern_no < 1  ||  speed_pattern_no > 133)
            {
                fprintf(stderr, "Bad link speed pattern %s\n", optarg);
                exit(2);
            }
            break;
        case 't':
            simulation_time = atoi(optarg);
            break;
        default:
            //usage();
            exit(2);
            break;
        }
    }
    argc -= optind;
    argv += optind;

    if ((out_file = fopen("g1050_tests.txt", "w")) == NULL)
    {
        fprintf(stderr, "Can't open %s\n", "g1050_tests.txt");
        return 2;
    }
    packets_per_sec = 1000/PACKET_INTERVAL;
    num_packets = packets_per_sec*simulation_time;

    if ((packet_arrival_times = calloc(num_packets, sizeof(double))) == NULL)
    {
        fprintf(stderr, "Can't allocate the data buffers\n");
        return 2;
    }
    for (i = 0;  i < num_packets;  i++)
        packet_arrival_times[i] = 0.0;

    /* If we don't initialise this random number generator it gives endless zeros on some systems. */
    /* Use a fixed seed to produce identical results in successive runs of the simulation, for debug purposes. */
    srand48(0x1234567);

    if ((s = g1050_init(model_no, speed_pattern_no, PACKET_SIZE, packets_per_sec)) == NULL)
    {
        fprintf(stderr, "Failed to start the G.1050 model\n");
        exit(2);
    }
    g1050_dump_parms(model_no, speed_pattern_no);

#if defined(ENABLE_GUI)
    if (use_gui)
        start_media_monitor();
#endif

    for (i = 0;  i < 256;  i++)
        put_pkt[i] = i;
    put_pkt_len = 256;
    get_pkt_len = -1;
    get_seq_no = -1;
    get_arrival_time = -1;
    packets_put = 0;
    packets_really_put = 0;
    packets_got = 0;
    oos_packets_got = 0;
    missing_packets_got = 0;
    highest_seq_no_got = -1;
    for (i = 0;  i < num_packets;  i++)
    {
        if ((len = g1050_put(s, put_pkt, put_pkt_len, i, (double) i*0.001*PACKET_INTERVAL)) > 0)
            packets_really_put++;
        packets_put++;
        if (i == 5)
            g1050_queue_dump(s);
        if (i >= 5)
        {
            do
            {
                get_pkt_len = g1050_get(s, get_pkt, 256, (double) i*0.001*PACKET_INTERVAL, &get_seq_no, &get_departure_time, &get_arrival_time);
                if (get_pkt_len >= 0)
                {
#if defined(ENABLE_GUI)
                    if (use_gui)
                        media_monitor_rx(get_seq_no, get_departure_time, get_arrival_time);
#endif
                    packets_got++;
                    if (get_seq_no < highest_seq_no_got)
                        oos_packets_got++;
                    else if (get_seq_no > highest_seq_no_got + 1)
                        missing_packets_got += (get_seq_no - highest_seq_no_got - 1);
                    if (get_seq_no > highest_seq_no_got)
                        highest_seq_no_got = get_seq_no;
                    fprintf(out_file, "%d, %.3f, %.8f\n", get_seq_no, get_seq_no*0.001*PACKET_INTERVAL, get_arrival_time);
                }
            }
            while (get_pkt_len >= 0);
        }
#if defined(ENABLE_GUI)
        if (use_gui)
            media_monitor_update_display();
#endif
    }
    /* Clear out anything remaining in the queue, by jumping forwards in time */
    do
    {
        get_pkt_len = g1050_get(s, get_pkt, 256, (double) i*0.001*PACKET_INTERVAL + 5.0, &get_seq_no, &get_departure_time, &get_arrival_time);
        if (get_pkt_len >= 0)
        {
            packets_got++;
            fprintf(out_file, "%d, %.3f, %.8f\n", get_seq_no, get_seq_no*0.001*PACKET_INTERVAL, get_arrival_time);
        }
    }
    while (get_pkt_len >= 0);

    fclose(out_file);

    printf("Put %d packets. Really put %d packets. Got %d packets.\n", packets_put, packets_really_put, packets_got);
    printf("%d OOS packets, %d missing packets\n", oos_packets_got, missing_packets_got - oos_packets_got);
    if (packets_really_put != packets_got)
    {
        printf("%d packets queued, but only %d received\n", packets_really_put, packets_got);
        exit(2);
    }
    printf("%.3f%% of packets lost\n", 100.0*(packets_put - packets_really_put)/packets_put);
    return 0;
}