int main(int argc, char *argv[])
{
char *server = NULL, *port = DEFAULT_GPSD_PORT;
GMainLoop *ml = g_main_loop_new(NULL, FALSE);
gpsdata = gps_open(server, port);
if (!gpsdata) perror("error connecting to gpsd");
gps_set_raw_hook(gpsdata, update_gps);
gps_stream(gpsdata, WATCH_ENABLE, NULL);
IvyInit ("GPSd2Ivy", "GPSd2Ivy READY", NULL, NULL, NULL, NULL);
IvyStart("127.255.255.255");
g_timeout_add(TIMEOUT_PERIOD, gps_periodic, NULL);
g_main_loop_run(ml);
return 0;
}
static int
gpsd_open(struct gpsd_priv *priv)
{
char *source = strdup(priv->url);
char *colon = index(source + 7, ':');
if (colon) {
*colon = '\0';
priv->gps = gps_open(source + 7, colon + 1);
} else
priv->gps = gps_open(source + 7, NULL);
free(source);
if (!priv->gps)
return 0;
priv->iochan = g_io_channel_unix_new(priv->gps->gps_fd);
priv->watch = g_io_add_watch(priv->iochan, IOFLAGS, gpsd_io, priv);
priv->timeout = g_timeout_source_new(1500);
g_source_set_callback(priv->timeout, gpsd_timeout_cb, priv, NULL);
priv->tag = g_source_attach(priv->timeout, NULL);
gps_query(priv->gps, "w+x\n");
gps_set_raw_hook(priv->gps, gpsd_callback);
return 1;
}
/*@ -globstate -branchstate @*/
void
handle_gps(XtPointer client_data, XtIntervalId *ignored)
{
char *err_str = NULL;
char error[128];
static bool dialog_posted = false;
/*@i@*/gpsdata = gps_open(server, port);
if (!gpsdata) {
switch (errno ){
case NL_NOSERVICE:
err_str = "can't get service entry";
break;
case NL_NOHOST:
err_str = "can't get host entry";
break;
case NL_NOPROTO:
err_str = "can't get protocol entry";
break;
case NL_NOSOCK:
err_str = "can't create socket";
break;
case NL_NOSOCKOPT:
err_str = "error SETSOCKOPT SO_REUSEADDR";
break;
case NL_NOCONNECT:
err_str = "can't connect to host";
break;
default:
err_str = "Unknown";
break;
}
if (!gps_lost && !dialog_posted) {
(void)snprintf(error, sizeof(error),
"No GPS data available.\n\n%s\n\n"
"Check the connection to gpsd and if "
"gpsd is running.", err_str);
(void)err_dialog(toplevel, error);
dialog_posted = true;
}
gps_timeout = XtAppAddTimeOut(app, 1000, handle_gps, app);
} else {
timeout = XtAppAddTimeOut(app, 2000, handle_time_out, app);
timer = time(NULL);
gps_set_raw_hook(gpsdata, update_panel);
if (jitteropt)
(void)gps_query(gpsdata, "J=1");
if (device)
(void)gps_query(gpsdata, "F=%s", device);
(void)gps_query(gpsdata, "w+x");
gps_input = XtAppAddInput(app, gpsdata->gps_fd,
(XtPointer)XtInputReadMask, handle_input, NULL);
if (gps_lost || dialog_posted)
(void)err_dialog(toplevel, "GPS data is available.");
dialog_posted = gps_lost = false;
}
}
int
main(int argc, char **argv){
int ch;
fd_set fds;
int casoc = 0;
progname = argv[0];
while ((ch = getopt(argc, argv, "hVi:j:s:p:")) != -1){
switch (ch) {
case 'i':
sl = (unsigned int)atoi(optarg);
if (sl < 1)
sl = 1;
if (sl >= 3600)
fprintf(stderr,
"WARNING: polling interval is an hour or more!\n");
break;
case 'j':
casoc = (unsigned int)atoi(optarg);
casoc = casoc ? 1 : 0;
break;
case 's':
host = optarg;
break;
case 'p':
port = optarg;
break;
case 'V':
(void)fprintf(stderr, "SVN ID: $Id: cgpxlogger.c 4406 2007-07-27 16:18:18Z ckuethe $ \n");
exit(0);
default:
usage();
/* NOTREACHED */
}
}
gpsdata = gps_open(host, port);
if (!gpsdata) {
char *err_str;
switch (errno) {
case NL_NOSERVICE:
err_str = "can't get service entry";
break;
case NL_NOHOST:
err_str = "can't get host entry";
break;
case NL_NOPROTO:
err_str = "can't get protocol entry";
break;
case NL_NOSOCK:
err_str = "can't create socket";
break;
case NL_NOSOCKOPT:
err_str = "error SETSOCKOPT SO_REUSEADDR";
break;
case NL_NOCONNECT:
err_str = "can't connect to host";
break;
default:
err_str = "Unknown";
break;
}
fprintf(stderr,
"cgpxlogger: no gpsd running or network error: %d, %s\n",
errno, err_str);
exit(1);
}
signal(SIGINT, bye);
signal(SIGTERM, bye);
signal(SIGQUIT, bye);
signal(SIGHUP, bye);
header();
if (casoc)
gps_query(gpsdata, "j1\n");
gps_set_raw_hook(gpsdata, process);
for(;;){
int data;
struct timeval tv;
FD_ZERO(&fds);
FD_SET(gpsdata->gps_fd, &fds);
gps_query(gpsdata, pollstr);
tv.tv_usec = 250000;
tv.tv_sec = 0;
data = select(gpsdata->gps_fd + 1, &fds, NULL, NULL, &tv);
if (data < 0) {
fprintf(stderr,"%s\n", strerror(errno));
footer();
exit(2);
}
else if (data)
gps_poll(gpsdata);
sleep(sl);
}
}
