viz1090/view1090.bak

// view1090, a Mode S messages viewer for dump1090 devices.
//
// Copyright (C) 2014 by Malcolm Robb <Support@ATTAvionics.com>
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//  *  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
//
//  *  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//

#include "view1090.h"
#include "structs.h"
#include "AircraftData.h"

int go = 1;


AppData appData;
Style style;

//
// ============================= Utility functions ==========================
//
void sigintHandler(int dummy) {
    NOTUSED(dummy);
    signal(SIGINT, SIG_DFL);  // reset signal handler - bit extra safety
    AircraftData.modes.exit = 1;           // Signal to threads that we are done
}

//
//=========================================================================
//

// Set up data connection
int setupConnection(struct client *c) {
    int fd;

    // Try to connect to the selected ip address and port. We only support *ONE* input connection which we initiate.here.
    if ((fd = anetTcpConnect(AircraftData.modes.aneterr, View1090.net_input_beast_ipaddr, AircraftData.modes.net_input_beast_port)) != ANET_ERR) {
		anetNonBlock(AircraftData.modes.aneterr, fd);
		//
		// Setup a service callback client structure for a beast binary input (from dump1090)
		// This is a bit dodgy under Windows. The fd parameter is a handle to the internet
		// socket on which we are receiving data. Under Linux, these seem to start at 0 and 
		// count upwards. However, Windows uses "HANDLES" and these don't nececeriy start at 0.
		// dump1090 limits fd to values less than 1024, and then uses the fd parameter to 
		// index into an array of clients. This is ok-ish if handles are allocated up from 0.
		// However, there is no gaurantee that Windows will behave like this, and if Windows 
		// allocates a handle greater than 1024, then dump1090 won't like it. On my test machine, 
		// the first Windows handle is usually in the 0x54 (84 decimal) region.

		c->next    = NULL;
		c->buflen  = 0;
		c->fd      = 
		c->service =
		AircraftData.modes.bis  = fd;
		AircraftData.modes.clients = c;
    }
    return fd;
}
//
// ================================ Main ====================================
//
void showHelp(void) {
    printf(
"-----------------------------------------------------------------------------\n"
"|                        view1090 dump1090 Viewer        Ver : "MODES_DUMP1090_VERSION " |\n"
"-----------------------------------------------------------------------------\n"
  "--server <IPv4/hosname>          TCP Beast output listen IPv4 (default: 127.0.0.1)\n"
  "--port <port>                    TCP Beast output listen port (default: 30005)\n"
  "--lat <latitude>                 Reference/receiver latitide for surface posn (opt)\n"
  "--lon <longitude>                Reference/receiver longitude for surface posn (opt)\n"
  "--metric                         Use metric units (meters, km/h, ...)\n"
  "--help                           Show this help\n"
  "--uiscale <factor>               UI global scaling (default: 1)\n"  
  "--screensize <width> <height>    Set frame buffer resolution (default: screen resolution)\n"
  "--fullscreen                     Start fullscreen\n"
    );
}

#ifdef _WIN32
void showCopyright(void) {
    uint64_t llTime = time(NULL) + 1;

    printf(
"-----------------------------------------------------------------------------\n"
"|                        view1090 ModeS Viewer           Ver : " MODES_DUMP1090_VERSION " |\n"
"-----------------------------------------------------------------------------\n"
"\n"
" Copyright (C) 2012 by Salvatore Sanfilippo <antirez@gmail.com>\n"
" Copyright (C) 2014 by Malcolm Robb <support@attavionics.com>\n"
" Copyright (C) 2020 by Nathan Matsuda <info@nathanmatsuda.com>\n"
"\n"
" All rights reserved.\n"
"\n"
" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS\n"
" ""AS IS"" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT\n"
" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR\n"
" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT\n"
" HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,\n"
" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT\n"
" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,\n"
" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY\n"
" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n"
" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE\n"
" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n"
"\n"
" For further details refer to <https://github.com/MalcolmRobb/dump1090>\n" 
"\n"
    );

  // delay for 1 second to give the user a chance to read the copyright
  while (llTime >= time(NULL)) {}
}
#endif
//
//=========================================================================
//

int main(int argc, char **argv) {
    int j, fd;
    struct client *c;
    char pk_buf[8];

    AircraftData aircraftData;

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


    aircraftData.initialize();

    // 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) {
            AircraftData.modes.net_input_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--port") && more) {
            AircraftData.modes.net_input_beast_port = atoi(argv[++j]);
        } else if (!strcmp(argv[j],"--net-bo-ipaddr") && more) {
            strcpy(View1090.net_input_beast_ipaddr, argv[++j]);
        } else if (!strcmp(argv[j],"--server") && more) {
            strcpy(View1090.net_input_beast_ipaddr, argv[++j]);            
        } else if (!strcmp(argv[j],"--lat") && more) {
            AircraftData.modes.fUserLat = atof(argv[++j]);
            appData.centerLat = AircraftData.modes.fUserLat;
        } else if (!strcmp(argv[j],"--lon") && more) {
            AircraftData.modes.fUserLon = atof(argv[++j]);
            appData.centerLon = AircraftData.modes.fUserLon;
        } else if (!strcmp(argv[j],"--metric")) {
            AircraftData.modes.metric = 1;
        } else if (!strcmp(argv[j],"--fullscreen")) {
            appData.fullscreen = 1;         
        } else if (!strcmp(argv[j],"--uiscale") && more) {
            appData.screen_uiscale = atoi(argv[++j]);   
         } else if (!strcmp(argv[j],"--screensize") && more) {
            appData.screen_width = atoi(argv[++j]);        
            appData.screen_height = atoi(argv[++j]);        
        } 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);
        }
    }

    // Try to connect to the selected ip address and port. We only support *ONE* input connection which we initiate.here.
    c = (struct client *) malloc(sizeof(*c));
    while(1) {
        if ((fd = setupConnection(c)) == ANET_ERR) {
            fprintf(stderr, "Waiting on %s:%d\n", View1090.net_input_beast_ipaddr, AircraftData.modes.net_input_beast_port);     
            sleep(1);      
        } else {
            break;
        }
    }

    int go;

    
    init("sdl1090");
    
    atexit(cleanup);
        
    go = 1;
          
    while (go == 1)
    {
        getInput();
    
        interactiveRemoveStaleAircrafts();
        draw();
        if ((fd == ANET_ERR) || (recv(c->fd, pk_buf, sizeof(pk_buf), MSG_PEEK | MSG_DONTWAIT) == 0)) {
            free(c);
            usleep(1000000);
            c = (struct client *) malloc(sizeof(*c));
            fd = setupConnection(c);
            continue;
        }
        modesReadFromClient(c,"",decodeBinMessage);
        //usleep(10000);
    }
    
    // The user has stopped us, so close any socket we opened
    if (fd != ANET_ERR) 
      {close(fd);}

    return (0);
}
//
//=========================================================================
//