diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/af-gps-binding.c | 89 |
1 files changed, 61 insertions, 28 deletions
diff --git a/src/af-gps-binding.c b/src/af-gps-binding.c index a5b0c94..602ed91 100644 --- a/src/af-gps-binding.c +++ b/src/af-gps-binding.c @@ -50,14 +50,33 @@ static int nmea_connect(); const struct afb_binding_interface *afbitf; struct gps { + unsigned time_is_set: 1; + unsigned latitude_is_set: 1; + unsigned longitude_is_set: 1; + unsigned altitude_is_set: 1; + unsigned speed_is_set: 1; + unsigned track_is_set: 1; + uint32_t time; double latitude; double longitude; -} gps; + double altitude; + double speed; + double track; +}; + +static struct gps frames[10]; +static int frameidx; +static int newframes; + +static struct json_object *last_position; static struct json_object *position() { - return NULL; + if (newframes) { + newframes = 0; + } + return last_position; } static int nmea_time(const char *text, uint32_t *result) @@ -153,56 +172,77 @@ static int nmea_set( const char *dat ) { - uint32_t time; - double latitude, longitude, altitude, speed, track; - struct gps *gps; + struct gps gps; DEBUG(afbitf, "time=%s latitude=%s%s longitude=%s%s altitude=%s%s speed=%s track=%s date=%s", tim, lat, latu, lon, lonu, alt, altu, spe, tra, dat); /* get the time in milliseconds */ - if (tim != NULL) { - if (!nmea_time(tim, &time)) + if (tim == NULL) + gps.time_is_set = 0; + else { + if (!nmea_time(tim, &gps.time)) return 0; + gps.time_is_set = 1; } /* get the latitude */ - if (lat != NULL && latu != NULL) { + if (lat == NULL || latu == NULL) + gps.latitude_is_set = 0; + else { if ((latu[0] != 'N' && latu[0] != 'S') || latu[1] != 0) return 0; - if (!nmea_angle(lat, &latitude)) + if (!nmea_angle(lat, &gps.latitude)) return 0; if (latu[0] == 'S') - latitude = -latitude; + gps.latitude = -gps.latitude; + gps.latitude_is_set = 1; } /* get the longitude */ - if (lon != NULL && lonu != NULL) { + if (lon == NULL || lonu == NULL) + gps.longitude_is_set = 0; + else { if ((lonu[0] != 'E' && lonu[0] != 'W') || lonu[1] != 0) return 0; - if (!nmea_angle(lon, &longitude)) + if (!nmea_angle(lon, &gps.longitude)) return 0; if (lonu[0] == 'W') - longitude = 360.0 - longitude; + gps.longitude = 360.0 - gps.longitude; + gps.longitude_is_set = 1; } /* get the altitude */ - if (alt != NULL && altu != NULL) { + if (alt == NULL || altu == NULL) + gps.altitude_is_set = 0; + else { if (altu[0] != 'M' || altu[1] != 0) return 0; - altitude = atof(alt); + gps.altitude = atof(alt); + gps.altitude_is_set = 1; } /* get the speed */ - if (spe != NULL) { - speed = atof(spe) * KNOT_TO_METER_PER_SECOND; + if (spe == NULL) + gps.speed_is_set = 0; + else { + gps.speed = atof(spe) * KNOT_TO_METER_PER_SECOND; + gps.speed_is_set = 1; } /* get the track */ - if (tra != NULL) { - track = atof(tra); + if (tra != NULL) + gps.track_is_set = 0; + else { + gps.track = atof(tra); + gps.track_is_set = 1; } + /* push the frame */ + frameidx = (frameidx ? : (int)(sizeof frames / sizeof *frames)) - 1; + frames[frameidx] = gps; + newframes++; + return 1; } @@ -340,7 +380,6 @@ static int open_socket_to(const char *host, const char *service) { int rc, fd; struct addrinfo hint, *rai, *iai; - char xhost[32]; /* get addr */ memset(&hint, 0, sizeof hint); @@ -353,12 +392,6 @@ static int open_socket_to(const char *host, const char *service) /* get the socket */ iai = rai; while (iai != NULL) { - struct sockaddr_in *a = (struct sockaddr_in*)(iai->ai_addr); - unsigned char *ipv4 = (unsigned char*)&(a->sin_addr.s_addr); - unsigned char *port = (unsigned char*)&(a->sin_port); - sprintf(xhost, "%d.%d.%d.%d:%d", - (int)ipv4[0], (int)ipv4[1], (int)ipv4[2], (int)ipv4[3], - (((int)port[0]) << 8)|(int)port[1]); fd = socket(iai->ai_family, iai->ai_socktype, iai->ai_protocol); if (fd >= 0) { rc = connect(fd, iai->ai_addr, iai->ai_addrlen); @@ -416,7 +449,7 @@ static void get(struct afb_req req) */ static void subscribe(struct afb_req req) { - afb_req_success(req, position(), NULL); + afb_req_success(req, NULL, NULL); } /* @@ -424,7 +457,7 @@ static void subscribe(struct afb_req req) */ static void unsubscribe(struct afb_req req) { - afb_req_success(req, position(), NULL); + afb_req_success(req, NULL, NULL); } /* |