int startLocationServices()
{
if (working) { return 0.0; }
gpsdata.status = STATUS_NO_FIX;
gpsdata.satellites_used = 0;
gps_clear_fix(&(gpsdata.fix));
gps_clear_dop(&(gpsdata.dop));
gpsdata.fix.latitude=0;
gpsdata.fix.longitude=0;
logfile=stdout;
gpsd_source_spec(NULL, &source);
unsigned int flags = WATCH_ENABLE;
if (gps_open("127.0.0.1" , "2947", &gpsdata) != 0)
{ fprintf(stderr,"LoacationService : no gpsd running or network error: %d, %s\n", errno, gps_errstr(errno)); return 0; }
if (source.device != NULL)
flags |= WATCH_DEVICE;
gps_stream(&gpsdata, flags, source.device);
fprintf(stderr,MAGENTA "Polling location services to determine if they will be used in this run : \n" NORMAL);
fprintf(stderr,MAGENTA "If you don't want to wait use `sudo service gpsd stop`\n" NORMAL);
unsigned int tries=3;
unsigned int success=0;
unsigned int i=0;
working=1; //lets assume that we are working so that pollLocationServices will work
for (i=0; i<tries; i++)
{
success+=pollLocationServices();
usleep(1000*1000);
}
if (success==0)
{
fprintf(stderr,RED "Location services failed to provide gps coordinates beeing switched off\n" NORMAL);
working=0;
} else
if (success<tries)
{
fprintf(stderr,YELLOW "Location services failed to provide gps coordinates beeing switched off\n" NORMAL);
working=1;
} else
if (success==tries)
{
fprintf(stderr,GREEN "Location services working fine.. :) \n" NORMAL);
working=1;
}
return working;
}
/*@-mustfreefresh -globstate@*/
int main(int argc, char **argv)
{
int ch;
bool daemonize = false;
struct method_t *mp, *method = NULL;
progname = argv[0];
logfile = stdout;
while ((ch = getopt(argc, argv, "dD:e:f:hi:lm:V")) != -1) {
switch (ch) {
case 'd':
openlog(basename(progname), LOG_PID | LOG_PERROR, LOG_DAEMON);
daemonize = true;
break;
#ifdef CLIENTDEBUG_ENABLE
case 'D':
debug = atoi(optarg);
gps_enable_debug(debug, logfile);
break;
#endif /* CLIENTDEBUG_ENABLE */
case 'e':
for (mp = methods;
mp < methods + NITEMS(methods);
mp++)
if (strcmp(mp->name, optarg) == 0)
method = mp;
if (method == NULL) {
(void)fprintf(stderr,
"%s: %s is not a known export method.\n",
progname, optarg);
exit(1);
}
break;
case 'f': /* Output file name. */
{
char fname[PATH_MAX];
time_t t;
size_t s;
t = time(NULL);
s = strftime(fname, sizeof(fname), optarg, localtime(&t));
if (s == 0) {
syslog(LOG_ERR,
"Bad template \"%s\", logging to stdout.", optarg);
break;
}
logfile = fopen(fname, "w");
if (logfile == NULL)
syslog(LOG_ERR,
"Failed to open %s: %s, logging to stdout.",
fname, strerror(errno));
break;
}
case 'i': /* set polling interfal */
timeout = (time_t) atoi(optarg);
if (timeout < 1)
timeout = 1;
if (timeout >= 3600)
fprintf(stderr,
"WARNING: track timeout is an hour or more!\n");
break;
case 'l':
for (method = methods;
method < methods + NITEMS(methods);
method++)
(void)printf("%s: %s\n", method->name, method->description);
exit(0);
case 'm':
minmove = (double )atoi(optarg);
break;
case 'V':
(void)fprintf(stderr, "gpxlogger revision " REVISION "\n");
exit(0);
default:
usage();
/* NOTREACHED */
}
}
if (daemonize && logfile == stdout) {
syslog(LOG_ERR, "Daemon mode with no valid logfile name - exiting.");
exit(1);
}
if (optind < argc) {
gpsd_source_spec(argv[optind], &source);
} else
gpsd_source_spec(NULL, &source);
#if 0
(void)fprintf(logfile,"<!-- server: %s port: %s device: %s -->\n",
source.server, source.port, source.device);
#endif
/* initializes the some gpsdata data structure */
gpsdata.status = STATUS_NO_FIX;
gpsdata.satellites_used = 0;
gps_clear_fix(&(gpsdata.fix));
gps_clear_dop(&(gpsdata.dop));
/* catch all interesting signals */
(void)signal(SIGTERM, quit_handler);
(void)signal(SIGQUIT, quit_handler);
(void)signal(SIGINT, quit_handler);
/*@-unrecog@*/
/* might be time to daemonize */
if (daemonize) {
/* not SuS/POSIX portable, but we have our own fallback version */
if (daemon(0, 0) != 0)
(void) fprintf(stderr,"demonization failed: %s\n", strerror(errno));
}
/*@+unrecog@*/
//syslog (LOG_INFO, "---------- STARTED ----------");
if (method != NULL) {
exit((*method->method)());
} else if (NITEMS(methods)) {
exit((methods[0].method)());
} else {
(void)fprintf(stderr, "%s: no export methods.\n", progname);
exit(1);
}
}
