Function main

LatencyMap.py:501–538

(argv: list[str] | None = None)

# --------------------------------- Main ------------------------------------ #

def main(argv: list[str] | None = None) -> int:
    # Parse CLI first so -h/--help works via console script entry point
    g_params.parse_cli(argv)
    # Show banner after successful parse (won't print on -h because argparse exits first)
    g_params.usage_banner()
    chart = ArrayOfLatencyRecords()
    first = True
    previous = LatencyRecord()  # dummy previous for first delta computation

    while True:
        rec = LatencyRecord()
        rec.go_to_begin_record_tag()
        try:
            rec.read_record()
        except Exception as err:
            sys.stderr.write(f"ERROR: {err}\n")
            return 1

        if g_params.debug_level >= 2:
            print("\nLatest data record:")
            print(rec.data)

        if first:
            LatencyRecord._autotune_latency_buckets()
            first = False
        else:
            rec.compute_deltas(previous)

        chart.add_new_record(rec)
        previous = rec

        chart.render()
        time.sleep(g_params.screen_delay)

        if g_params.debug_level >= 3:
            chart.print_frequency_histograms_debug()
        if g_params.debug_level >= 4:
            chart.print_intensity_histograms_debug()


if __name__ == '__main__':