Пример #1
0
//
//=========================================================================
//
int main(int argc, char **argv) {
    int j;

    // Set sane defaults
    modesInitConfig();
    signal(SIGINT, sigintHandler); // Define Ctrl/C handler (exit program)

    // Parse the command line options
    for (j = 1; j < argc; j++) {
        int more = j+1 < argc; // There are more arguments

        if (!strcmp(argv[j],"--device-index") && more) {
            Modes.dev_index = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--gain") && more) {
            Modes.gain = (int) atof(argv[++j])*10; // Gain is in tens of DBs
        } else if (!strcmp(argv[j],"--enable-agc")) {
            Modes.enable_agc++;
        } else if (!strcmp(argv[j],"--freq") && more) {
            Modes.freq = (int) strtoll(argv[++j],NULL,10);
        } else if (!strcmp(argv[j],"--ifile") && more) {
            Modes.filename = strdup(argv[++j]);
        } else if (!strcmp(argv[j],"--fix")) {
            Modes.nfix_crc = 1;
        } else if (!strcmp(argv[j],"--no-fix")) {
            Modes.nfix_crc = 0;
        } else if (!strcmp(argv[j],"--no-crc-check")) {
            Modes.check_crc = 0;
        } else if (!strcmp(argv[j],"--phase-enhance")) {
            Modes.phase_enhance = 1;
        } else if (!strcmp(argv[j],"--raw")) {
            Modes.raw = 1;
        } else if (!strcmp(argv[j],"--net")) {
            Modes.net = 1;
        } else if (!strcmp(argv[j],"--modeac")) {
            Modes.mode_ac = 1;
        } else if (!strcmp(argv[j],"--net-beast")) {
            Modes.beast = 1;
        } else if (!strcmp(argv[j],"--net-only")) {
            Modes.net = 1;
            Modes.net_only = 1;
       } else if (!strcmp(argv[j],"--net-heartbeat") && more) {
            Modes.net_heartbeat_rate = atoi(argv[++j]) * 15;
       } else if (!strcmp(argv[j],"--net-ro-size") && more) {
            Modes.net_output_raw_size = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-ro-rate") && more) {
            Modes.net_output_raw_rate = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-ro-port") && more) {
            if (Modes.beast) // Required for legacy backward compatibility
                {Modes.net_output_beast_port = atoi(argv[++j]);;}
            else
                {Modes.net_output_raw_port = atoi(argv[++j]);}
        } else if (!strcmp(argv[j],"--net-ri-port") && more) {
            Modes.net_input_raw_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bo-port") && more) {
            Modes.net_output_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bi-port") && more) {
            Modes.net_input_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-http-port") && more) {
            Modes.net_http_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-sbs-port") && more) {
            Modes.net_output_sbs_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--onlyaddr")) {
            Modes.onlyaddr = 1;
        } else if (!strcmp(argv[j],"--metric")) {
            Modes.metric = 1;
        } else if (!strcmp(argv[j],"--aggressive")) {
            Modes.nfix_crc = MODES_MAX_BITERRORS;
        } else if (!strcmp(argv[j],"--interactive")) {
            Modes.interactive = 1;
        } else if (!strcmp(argv[j],"--interactive-rows") && more) {
            Modes.interactive_rows = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--interactive-ttl") && more) {
            Modes.interactive_display_ttl = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--lat") && more) {
            Modes.fUserLat = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--lon") && more) {
            Modes.fUserLon = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--debug") && more) {
            char *f = argv[++j];
            while(*f) {
                switch(*f) {
                case 'D': Modes.debug |= MODES_DEBUG_DEMOD; break;
                case 'd': Modes.debug |= MODES_DEBUG_DEMODERR; break;
                case 'C': Modes.debug |= MODES_DEBUG_GOODCRC; break;
                case 'c': Modes.debug |= MODES_DEBUG_BADCRC; break;
                case 'p': Modes.debug |= MODES_DEBUG_NOPREAMBLE; break;
                case 'n': Modes.debug |= MODES_DEBUG_NET; break;
                case 'j': Modes.debug |= MODES_DEBUG_JS; break;
                default:
                    fprintf(stderr, "Unknown debugging flag: %c\n", *f);
                    exit(1);
                    break;
                }
                f++;
            }
        } else if (!strcmp(argv[j],"--stats")) {
            Modes.stats = 1;
        } else if (!strcmp(argv[j],"--snip") && more) {
            snipMode(atoi(argv[++j]));
            exit(0);
        } else if (!strcmp(argv[j],"--help")) {
            showHelp();
            exit(0);
        } else if (!strcmp(argv[j],"--ppm") && more) {
            Modes.ppm_error = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--quiet")) {
            Modes.quiet = 1;
        } else if (!strcmp(argv[j],"--mlat")) {
            Modes.mlat = 1;
        } else if (!strcmp(argv[j],"--interactive-rtl1090")) {
            Modes.interactive = 1;
            Modes.interactive_rtl1090 = 1;
        } else {
            fprintf(stderr,
                "Unknown or not enough arguments for option '%s'.\n\n",
                argv[j]);
            showHelp();
            exit(1);
        }
    }

#ifndef _WIN32
    // Setup for SIGWINCH for handling lines
    if (Modes.interactive) {signal(SIGWINCH, sigWinchCallback);}
#endif

    // Initialization
    modesInit();

    if (Modes.net_only) {
        fprintf(stderr,"Net-only mode, no RTL device or file open.\n");
    } else if (Modes.filename == NULL) {
        modesInitRTLSDR();
    } else {
        if (Modes.filename[0] == '-' && Modes.filename[1] == '\0') {
            Modes.fd = STDIN_FILENO;
        } else if ((Modes.fd = open(Modes.filename,O_RDONLY)) == -1) {
            perror("Opening data file");
            exit(1);
        }
    }
    if (Modes.net) modesInitNet();

    // If the user specifies --net-only, just run in order to serve network
    // clients without reading data from the RTL device
    while (Modes.net_only) {
        if (Modes.exit) exit(0); // If we exit net_only nothing further in main()
        backgroundTasks();
        usleep(100000);
    }

    // Create the thread that will read the data from the device.
    pthread_create(&Modes.reader_thread, NULL, readerThreadEntryPoint, NULL);
    pthread_mutex_lock(&Modes.data_mutex);

    while (Modes.exit == 0) {

        if (Modes.iDataReady == 0) {
            pthread_cond_wait(&Modes.data_cond,&Modes.data_mutex); // This unlocks Modes.data_mutex, and waits for Modes.data_cond 
            continue;                                              // Once (Modes.data_cond) occurs, it locks Modes.data_mutex
        }

        // Modes.data_mutex is Locked, and (Modes.iDataReady != 0)
        if (Modes.iDataReady) { // Check we have new data, just in case!!
 
            Modes.iDataOut &= (MODES_ASYNC_BUF_NUMBER-1); // Just incase

            // Translate the next lot of I/Q samples into Modes.magnitude
            computeMagnitudeVector(Modes.pData[Modes.iDataOut]);

            Modes.stSystemTimeBlk = Modes.stSystemTimeRTL[Modes.iDataOut];

            // Update the input buffer pointer queue
            Modes.iDataOut   = (MODES_ASYNC_BUF_NUMBER-1) & (Modes.iDataOut + 1); 
            Modes.iDataReady = (MODES_ASYNC_BUF_NUMBER-1) & (Modes.iDataIn - Modes.iDataOut);   

            // If we lost some blocks, correct the timestamp
            if (Modes.iDataLost) {
                Modes.timestampBlk += (MODES_ASYNC_BUF_SAMPLES * 6 * Modes.iDataLost);
                Modes.iDataLost = 0;
            }

            // It's safe to release the lock now
            pthread_cond_signal (&Modes.data_cond);
            pthread_mutex_unlock(&Modes.data_mutex);

            // Process data after releasing the lock, so that the capturing
            // thread can read data while we perform computationally expensive
            // stuff at the same time.
            detectModeS(Modes.magnitude, MODES_ASYNC_BUF_SAMPLES);

            // Update the timestamp ready for the next block
            Modes.timestampBlk += (MODES_ASYNC_BUF_SAMPLES*6);

        } else {
            pthread_cond_signal (&Modes.data_cond);
            pthread_mutex_unlock(&Modes.data_mutex);
        }

        backgroundTasks();
        pthread_mutex_lock(&Modes.data_mutex);
    }

    // If --stats were given, print statistics
    if (Modes.stats) {
        printf("\n\n");
        if (Modes.interactive)
            interactiveShowData();
        printf("%d ModeA/C detected\n",                           Modes.stat_ModeAC);
        printf("%d valid Mode-S preambles\n",                     Modes.stat_valid_preamble);
        printf("%d DF-?? fields corrected for length\n",          Modes.stat_DF_Len_Corrected);
        printf("%d DF-?? fields corrected for type\n",            Modes.stat_DF_Type_Corrected);
        printf("%d demodulated with 0 errors\n",                  Modes.stat_demodulated0);
        printf("%d demodulated with 1 error\n",                   Modes.stat_demodulated1);
        printf("%d demodulated with 2 errors\n",                  Modes.stat_demodulated2);
        printf("%d demodulated with > 2 errors\n",                Modes.stat_demodulated3);
        printf("%d with good crc\n",                              Modes.stat_goodcrc);
        printf("%d with bad crc\n",                               Modes.stat_badcrc);
        printf("%d errors corrected\n",                           Modes.stat_fixed);
        for (j = 0;  j < MODES_MAX_BITERRORS;  j++) {
            printf("   %d with %d bit %s\n", Modes.stat_bit_fix[j], j+1, (j==0)?"error":"errors");
        }
        if (Modes.phase_enhance) {
            printf("%d phase enhancement attempts\n",                 Modes.stat_out_of_phase);
            printf("%d phase enhanced demodulated with 0 errors\n",   Modes.stat_ph_demodulated0);
            printf("%d phase enhanced demodulated with 1 error\n",    Modes.stat_ph_demodulated1);
            printf("%d phase enhanced demodulated with 2 errors\n",   Modes.stat_ph_demodulated2);
            printf("%d phase enhanced demodulated with > 2 errors\n", Modes.stat_ph_demodulated3);
            printf("%d phase enhanced with good crc\n",               Modes.stat_ph_goodcrc);
            printf("%d phase enhanced with bad crc\n",                Modes.stat_ph_badcrc);
            printf("%d phase enhanced errors corrected\n",            Modes.stat_ph_fixed);
            for (j = 0;  j < MODES_MAX_BITERRORS;  j++) {
                printf("   %d with %d bit %s\n", Modes.stat_ph_bit_fix[j], j+1, (j==0)?"error":"errors");
            }
        }
        printf("%d total usable messages\n",                      Modes.stat_goodcrc + Modes.stat_ph_goodcrc + Modes.stat_fixed + Modes.stat_ph_fixed);
    }

    if (Modes.filename == NULL) {
        rtlsdr_cancel_async(Modes.dev);  // Cancel rtlsdr_read_async will cause data input thread to terminate cleanly
        rtlsdr_close(Modes.dev);
    }
    pthread_cond_destroy(&Modes.data_cond);     // Thread cleanup
    pthread_mutex_destroy(&Modes.data_mutex);
    pthread_join(Modes.reader_thread,NULL);     // Wait on reader thread exit
#ifndef _WIN32
    pthread_exit(0);
#else
    return (0);
#endif
}
Пример #2
0
//
//=========================================================================
//
int main(int argc, char **argv) {
    int j;

    // Set sane defaults
    modesInitConfig();

    // signal handlers:
    signal(SIGINT, sigintHandler);
    signal(SIGTERM, sigtermHandler);

    // Parse the command line options
    for (j = 1; j < argc; j++) {
        int more = j+1 < argc; // There are more arguments

        if (!strcmp(argv[j],"--device-index") && more) {
            Modes.dev_name = strdup(argv[++j]);
        } else if (!strcmp(argv[j],"--gain") && more) {
            Modes.gain = (int) (atof(argv[++j])*10); // Gain is in tens of DBs
        } else if (!strcmp(argv[j],"--enable-agc")) {
            Modes.enable_agc++;
        } else if (!strcmp(argv[j],"--freq") && more) {
            Modes.freq = (int) strtoll(argv[++j],NULL,10);
        } else if (!strcmp(argv[j],"--ifile") && more) {
            Modes.filename = strdup(argv[++j]);
        } else if (!strcmp(argv[j],"--iformat") && more) {
            ++j;
            if (!strcasecmp(argv[j], "uc8")) {
                Modes.input_format = INPUT_UC8;
            } else if (!strcasecmp(argv[j], "sc16")) {
                Modes.input_format = INPUT_SC16;
            } else if (!strcasecmp(argv[j], "sc16q11")) {
                Modes.input_format = INPUT_SC16Q11;
            } else {
                fprintf(stderr, "Input format '%s' not understood (supported values: UC8, SC16, SC16Q11)\n",
                        argv[j]);
                exit(1);
            }
        } else if (!strcmp(argv[j],"--dcfilter")) {
            Modes.dc_filter = 1;
        } else if (!strcmp(argv[j],"--measure-noise")) {
            Modes.measure_noise = 1;
        } else if (!strcmp(argv[j],"--fix")) {
            Modes.nfix_crc = 1;
        } else if (!strcmp(argv[j],"--no-fix")) {
            Modes.nfix_crc = 0;
        } else if (!strcmp(argv[j],"--no-crc-check")) {
            Modes.check_crc = 0;
        } else if (!strcmp(argv[j],"--phase-enhance")) {
            Modes.phase_enhance = 1;
        } else if (!strcmp(argv[j],"--raw")) {
            Modes.raw = 1;
        } else if (!strcmp(argv[j],"--net")) {
            Modes.net = 1;
        } else if (!strcmp(argv[j],"--modeac")) {
            Modes.mode_ac = 1;
        } else if (!strcmp(argv[j],"--net-beast")) {
            Modes.beast = 1;
        } else if (!strcmp(argv[j],"--net-only")) {
            Modes.net = 1;
            Modes.net_only = 1;
       } else if (!strcmp(argv[j],"--net-heartbeat") && more) {
            Modes.net_heartbeat_interval = (uint64_t)(1000 * atof(argv[++j]));
       } else if (!strcmp(argv[j],"--net-ro-size") && more) {
            Modes.net_output_flush_size = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-ro-rate") && more) {
            Modes.net_output_flush_interval = 1000 * atoi(argv[++j]) / 15; // backwards compatibility
        } else if (!strcmp(argv[j],"--net-ro-interval") && more) {
            Modes.net_output_flush_interval = (uint64_t)(1000 * atof(argv[++j]));
        } else if (!strcmp(argv[j],"--net-ro-port") && more) {
            if (Modes.beast) // Required for legacy backward compatibility
                {Modes.net_output_beast_port = atoi(argv[++j]);;}
            else
                {Modes.net_output_raw_port = atoi(argv[++j]);}
        } else if (!strcmp(argv[j],"--net-ri-port") && more) {
            Modes.net_input_raw_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bo-port") && more) {
            Modes.net_output_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bi-port") && more) {
            Modes.net_input_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bind-address") && more) {
            Modes.net_bind_address = strdup(argv[++j]);
        } else if (!strcmp(argv[j],"--net-http-port") && more) {
            Modes.net_http_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-fatsv-port") && more) {
            Modes.net_fatsv_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-sbs-port") && more) {
            Modes.net_output_sbs_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-buffer") && more) {
            Modes.net_sndbuf_size = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-verbatim")) {
            Modes.net_verbatim = 1;
        } else if (!strcmp(argv[j],"--forward-mlat")) {
            Modes.forward_mlat = 1;
        } else if (!strcmp(argv[j],"--onlyaddr")) {
            Modes.onlyaddr = 1;
        } else if (!strcmp(argv[j],"--metric")) {
            Modes.metric = 1;
        } else if (!strcmp(argv[j],"--aggressive")) {
            Modes.nfix_crc = MODES_MAX_BITERRORS;
        } else if (!strcmp(argv[j],"--interactive")) {
            Modes.interactive = Modes.throttle = 1;
        } else if (!strcmp(argv[j],"--throttle")) {
            Modes.throttle = 1;
        } else if (!strcmp(argv[j],"--interactive-rows") && more) {
            Modes.interactive_rows = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--interactive-ttl") && more) {
            Modes.interactive_display_ttl = (uint64_t)(1000 * atof(argv[++j]));
        } else if (!strcmp(argv[j],"--lat") && more) {
            Modes.fUserLat = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--lon") && more) {
            Modes.fUserLon = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--max-range") && more) {
            Modes.maxRange = atof(argv[++j]) * 1852.0; // convert to metres
        } else if (!strcmp(argv[j],"--debug") && more) {
            char *f = argv[++j];
            while(*f) {
                switch(*f) {
                case 'D': Modes.debug |= MODES_DEBUG_DEMOD; break;
                case 'd': Modes.debug |= MODES_DEBUG_DEMODERR; break;
                case 'C': Modes.debug |= MODES_DEBUG_GOODCRC; break;
                case 'c': Modes.debug |= MODES_DEBUG_BADCRC; break;
                case 'p': Modes.debug |= MODES_DEBUG_NOPREAMBLE; break;
                case 'n': Modes.debug |= MODES_DEBUG_NET; break;
                case 'j': Modes.debug |= MODES_DEBUG_JS; break;
                default:
                    fprintf(stderr, "Unknown debugging flag: %c\n", *f);
                    exit(1);
                    break;
                }
                f++;
            }
        } else if (!strcmp(argv[j],"--stats")) {
            if (!Modes.stats)
                Modes.stats = (uint64_t)1 << 60; // "never"
        } else if (!strcmp(argv[j],"--stats-range")) {
            Modes.stats_range_histo = 1;
        } else if (!strcmp(argv[j],"--stats-every") && more) {
            Modes.stats = (uint64_t) (1000 * atof(argv[++j]));
        } else if (!strcmp(argv[j],"--snip") && more) {
            snipMode(atoi(argv[++j]));
            exit(0);
        } else if (!strcmp(argv[j],"--help")) {
            showHelp();
            exit(0);
        } else if (!strcmp(argv[j],"--ppm") && more) {
            Modes.ppm_error = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--quiet")) {
            Modes.quiet = 1;
        } else if (!strcmp(argv[j],"--show-only") && more) {
            Modes.show_only = (uint32_t) strtoul(argv[++j], NULL, 16);
        } else if (!strcmp(argv[j],"--mlat")) {
            Modes.mlat = 1;
        } else if (!strcmp(argv[j],"--interactive-rtl1090")) {
            Modes.interactive = 1;
            Modes.interactive_rtl1090 = 1;
        } else if (!strcmp(argv[j],"--oversample")) {
            Modes.oversample = 1;
#ifndef _WIN32
        } else if (!strcmp(argv[j], "--write-json") && more) {
            Modes.json_dir = strdup(argv[++j]);
        } else if (!strcmp(argv[j], "--write-json-every") && more) {
            Modes.json_interval = (uint64_t)(1000 * atof(argv[++j]));
            if (Modes.json_interval < 100) // 0.1s
                Modes.json_interval = 100;
        } else if (!strcmp(argv[j], "--json-location-accuracy") && more) {
            Modes.json_location_accuracy = atoi(argv[++j]);
#endif
        } else {
            fprintf(stderr,
                "Unknown or not enough arguments for option '%s'.\n\n",
                argv[j]);
            showHelp();
            exit(1);
        }
    }

#ifndef _WIN32
    // Setup for SIGWINCH for handling lines
    if (Modes.interactive) {signal(SIGWINCH, sigWinchCallback);}
#endif

    if (Modes.mode_ac && Modes.oversample) {
        fprintf(stderr,
                "Warning: --modeac is currently ignored when --oversample is used;\n"
                "         no ModeA/C messages will be decoded.\n");
    }

    // Initialization
    log_with_timestamp("%s %s starting up.", MODES_DUMP1090_VARIANT, MODES_DUMP1090_VERSION);
    modesInit();

    if (Modes.net_only) {
        fprintf(stderr,"Net-only mode, no RTL device or file open.\n");
    } else if (Modes.filename == NULL) {
        if (modesInitRTLSDR() < 0) {
            exit(1);
        }
    } else {
        if (Modes.filename[0] == '-' && Modes.filename[1] == '\0') {
            Modes.fd = STDIN_FILENO;
        } else if ((Modes.fd = open(Modes.filename,
#ifdef _WIN32
                                    (O_RDONLY | O_BINARY)
#else
                                    (O_RDONLY)
#endif
                                    )) == -1) {
            perror("Opening data file");
            exit(1);
        }
    }
    if (Modes.net) modesInitNet();

    // init stats:
    Modes.stats_current.start = Modes.stats_current.end =
        Modes.stats_alltime.start = Modes.stats_alltime.end =
        Modes.stats_periodic.start = Modes.stats_periodic.end =
        Modes.stats_5min.start = Modes.stats_5min.end =
        Modes.stats_15min.start = Modes.stats_15min.end = mstime();

    for (j = 0; j < 15; ++j)
        Modes.stats_1min[j].start = Modes.stats_1min[j].end = Modes.stats_current.start;

    // write initial json files so they're not missing
    writeJsonToFile("receiver.json", generateReceiverJson);
    writeJsonToFile("stats.json", generateStatsJson);
    writeJsonToFile("aircraft.json", generateAircraftJson);

    // If the user specifies --net-only, just run in order to serve network
    // clients without reading data from the RTL device
    if (Modes.net_only) {
        while (!Modes.exit) {
            struct timespec start_time;

            start_cpu_timing(&start_time);
            backgroundTasks();
            end_cpu_timing(&start_time, &Modes.stats_current.background_cpu);

            usleep(100000);
        }
    } else {
        // Create the thread that will read the data from the device.
        pthread_mutex_lock(&Modes.data_mutex);
        pthread_create(&Modes.reader_thread, NULL, readerThreadEntryPoint, NULL);

        while (Modes.exit == 0) {
            struct timespec start_time;

            if (Modes.first_free_buffer == Modes.first_filled_buffer) {
                /* wait for more data.
                 * we should be getting data every 50-60ms. wait for max 100ms before we give up and do some background work.
                 * this is fairly aggressive as all our network I/O runs out of the background work!
                 */

                struct timespec ts;
                clock_gettime(CLOCK_REALTIME, &ts);
                ts.tv_nsec += 100000000;
                normalize_timespec(&ts);

                pthread_cond_timedwait(&Modes.data_cond, &Modes.data_mutex, &ts); // This unlocks Modes.data_mutex, and waits for Modes.data_cond
            }

            // Modes.data_mutex is locked, and possibly we have data.

            // copy out reader CPU time and reset it
            add_timespecs(&Modes.reader_cpu_accumulator, &Modes.stats_current.reader_cpu, &Modes.stats_current.reader_cpu);
            Modes.reader_cpu_accumulator.tv_sec = 0;
            Modes.reader_cpu_accumulator.tv_nsec = 0;

            if (Modes.first_free_buffer != Modes.first_filled_buffer) {
                // FIFO is not empty, process one buffer.

                struct mag_buf *buf;

                start_cpu_timing(&start_time);
                buf = &Modes.mag_buffers[Modes.first_filled_buffer];

                // Process data after releasing the lock, so that the capturing
                // thread can read data while we perform computationally expensive
                // stuff at the same time.
                pthread_mutex_unlock(&Modes.data_mutex);

                if (Modes.oversample) {
                    demodulate2400(buf);
                } else {
                    demodulate2000(buf);
                }

                Modes.stats_current.samples_processed += buf->length;
                Modes.stats_current.samples_dropped += buf->dropped;
                end_cpu_timing(&start_time, &Modes.stats_current.demod_cpu);

                // Mark the buffer we just processed as completed.
                pthread_mutex_lock(&Modes.data_mutex);
                Modes.first_filled_buffer = (Modes.first_filled_buffer + 1) % MODES_MAG_BUFFERS;
                pthread_cond_signal(&Modes.data_cond);
                pthread_mutex_unlock(&Modes.data_mutex);
            } else {
                // Nothing to process this time around.
                pthread_mutex_unlock(&Modes.data_mutex);
            }

            start_cpu_timing(&start_time);
            backgroundTasks();
            end_cpu_timing(&start_time, &Modes.stats_current.background_cpu);

            pthread_mutex_lock(&Modes.data_mutex);
        }

        pthread_mutex_unlock(&Modes.data_mutex);

        pthread_join(Modes.reader_thread,NULL);     // Wait on reader thread exit
        pthread_cond_destroy(&Modes.data_cond);     // Thread cleanup - only after the reader thread is dead!
        pthread_mutex_destroy(&Modes.data_mutex);
    }

    // If --stats were given, print statistics
    if (Modes.stats) {
        display_total_stats();
    }

    cleanup_converter(Modes.converter_state);
    log_with_timestamp("Normal exit.");

    pthread_exit(0);
#ifdef _WIN32
    return (0);
#endif
}
Пример #3
0
//
//=========================================================================
//
int main(int argc, char **argv) {
    int j;
    int stdout_option = 0;
    char *bo_connect_ipaddr = "127.0.0.1";
    int bo_connect_port = MODES_NET_OUTPUT_BEAST_PORT;
    struct client *c;
    struct net_service *beast_input, *fatsv_output;

    // Set sane defaults
    faupInitConfig();

    // Parse the command line options
    for (j = 1; j < argc; j++) {
        int more = j+1 < argc; // There are more arguments

        if (!strcmp(argv[j],"--net-bo-port") && more) {
            bo_connect_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bo-ipaddr") && more) {
            bo_connect_ipaddr = argv[++j];
        } else if (!strcmp(argv[j],"--lat") && more) {
            Modes.fUserLat = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--lon") && more) {
            Modes.fUserLon = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--max-range") && more) {
            Modes.maxRange = atof(argv[++j]) * 1852.0; // convert to metres
        } else if (!strcmp(argv[j],"--help")) {
            showHelp();
            exit(0);
        } else if (!strcmp(argv[j],"--stdout")) {
            stdout_option = 1;
        } else {
            fprintf(stderr,
                "Unknown or not enough arguments for option '%s'.\n\n",
                argv[j]);
            showHelp();
            exit(1);
        }
    }

    if (!stdout_option) {
        fprintf(stderr,
                "--stdout is required, output always goes to stdout.\n");
            showHelp();
        exit(1);
    }

    // Initialization
    faupInit();
    modesInitNet();

    // Set up input connection
    beast_input = makeBeastInputService();
    c = serviceConnect(beast_input, bo_connect_ipaddr, bo_connect_port);
    if (!c) {
        fprintf (stderr,
                 "faup1090: failed to connect to %s:%d (is dump1090 running?): %s\n",
                 bo_connect_ipaddr, bo_connect_port, Modes.aneterr);
        exit (1);
    }

    // Set up output connection on stdout
    fatsv_output = makeFatsvOutputService();
    createGenericClient(fatsv_output, STDOUT_FILENO);

    // Run it until we've lost either connection
    while (!Modes.exit && beast_input->connections && fatsv_output->connections) {
        backgroundTasks();
        usleep(100000);
    }

    return 0;
}
Пример #4
0
//
//=========================================================================
//
int main(int argc, char **argv) {
    int j;
    struct client *c;
    struct net_service *s;
    char *bo_connect_ipaddr = "127.0.0.1";
    int bo_connect_port = 30005;

    // Set sane defaults

    view1090InitConfig();
    signal(SIGINT, sigintHandler); // Define Ctrl/C handler (exit program)

    // Parse the command line options
    for (j = 1; j < argc; j++) {
        int more = ((j + 1) < argc); // There are more arguments

        if        (!strcmp(argv[j],"--net-bo-port") && more) {
            bo_connect_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bo-ipaddr") && more) {
            bo_connect_ipaddr = argv[++j];
        } else if (!strcmp(argv[j],"--modeac")) {
            Modes.mode_ac = 1;
        } else if (!strcmp(argv[j],"--interactive-rows") && more) {
            Modes.interactive_rows = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--no-interactive")) {
            Modes.interactive = 0;
        } else if (!strcmp(argv[j],"--show-only") && more) {
            Modes.show_only = (uint32_t) strtoul(argv[++j], NULL, 16);
            Modes.interactive = 0;
        } else if (!strcmp(argv[j],"--interactive-ttl") && more) {
            Modes.interactive_display_ttl = (uint64_t)(1000 * atof(argv[++j]));
        } else if (!strcmp(argv[j],"--interactive-rtl1090")) {
            Modes.interactive = 1;
            Modes.interactive_rtl1090 = 1;
        } else if (!strcmp(argv[j],"--lat") && more) {
            Modes.fUserLat = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--lon") && more) {
            Modes.fUserLon = atof(argv[++j]);
        } else if (!strcmp(argv[j],"--metric")) {
            Modes.metric = 1;
        } else if (!strcmp(argv[j],"--no-crc-check")) {
            Modes.check_crc = 0;
        } else if (!strcmp(argv[j],"--fix")) {
            Modes.nfix_crc = 1;
        } else if (!strcmp(argv[j],"--no-fix")) {
            Modes.nfix_crc = 0;
        } else if (!strcmp(argv[j],"--aggressive")) {
            Modes.nfix_crc = MODES_MAX_BITERRORS;
        } else if (!strcmp(argv[j],"--max-range") && more) {
            Modes.maxRange = atof(argv[++j]) * 1852.0; // convert to metres
        } else if (!strcmp(argv[j],"--help")) {
            showHelp();
            exit(0);
        } else {
            fprintf(stderr, "Unknown or not enough arguments for option '%s'.\n\n", argv[j]);
            showHelp();
            exit(1);
        }
    }

#ifdef _WIN32
    // Try to comply with the Copyright license conditions for binary distribution
    if (!Modes.quiet) {showCopyright();}
#define MSG_DONTWAIT 0
#endif

#ifndef _WIN32
    // Setup for SIGWINCH for handling lines
    if (Modes.interactive) {signal(SIGWINCH, sigWinchCallback);}
#endif

    // Initialization
    view1090Init();
    modesInitNet();

    // Try to connect to the selected ip address and port. We only support *ONE* input connection which we initiate.here.
    s = makeBeastInputService();
    c = serviceConnect(s, bo_connect_ipaddr, bo_connect_port);
    if (!c) {
        fprintf(stderr, "Failed to connect to %s:%d: %s\n", bo_connect_ipaddr, bo_connect_port, Modes.aneterr);
        exit(1);
    }

    // Keep going till the user does something that stops us
    while (!Modes.exit) {
        icaoFilterExpire();
        trackPeriodicUpdate();
        modesNetPeriodicWork();

        if (Modes.interactive)
            interactiveShowData();

        if (s->connections == 0) {
            // lost input connection, try to reconnect
            usleep(1000000);
            c = serviceConnect(s, bo_connect_ipaddr, bo_connect_port);
            continue;
        }

        usleep(100000);
    }

    return (0);
}