struct json_iter json_parse(struct json_pair *p, const struct json_iter* it) { struct json_iter next; next = json_read(&p->name, it); if (next.err) return next; return json_read(&p->value, &next); }
static muse_cell json_read_array_items( muse_env *env, muse_port_t p, muse_cell h, muse_cell t, int N ) { int i; if ( port_eof(p) ) { return muse_raise_error( env, _csymbol(L"json:end-of-file-in-array"), MUSE_NIL ); } else { muse_char c = port_getchar(p); if ( c == ']' ) { muse_cell v = muse_mk_vector( env, N ); for ( i = 0; i < N; ++i ) { muse_vector_put( env, v, i, _next(&h) ); } return v; } else { port_ungetchar( c, p ); } } if ( h ) { int sp = _spos(); muse_cell n = _cons( json_read(p), MUSE_NIL ); _sett( t, n ); t = n; _unwind(sp); } else { h = t = _cons( json_read(p), MUSE_NIL ); } json_skip_whitespace(p); if ( port_eof(p) ) { return muse_raise_error( env, _csymbol(L"json:end-of-file-in-array"), h ); } else { muse_char c = port_getchar(p); if ( c == ',' ) { return json_read_array_items( env, p, h, t, N+1 ); } else if ( c == ']' ) { port_ungetc( c, p ); return json_read_array_items( env, p, h, t, N+1 ); } else { return muse_raise_error( env, _csymbol(L"json:array-syntax-error"), h ); } } }
/** * @code (read-json [port]) @endcode * * Reads and returns a JSON compatible object - which is * either a number, a string, a vector or a hashtable. * The values in the vectors and hashtables themselves * must be JSON compatible objects. * * If you have nested containers expressed in JSON, you * can use the (get ...) function to index deeply into * the structure. For example, * @code * > (define j (read-json)) * {"kind":"prime-numbers","message":[2,3,5,7,11,13,17]} * {hashtable '((message . {vector 2 3 5 7 11 13 17}) (kind . "prime-numbers"))} * > (get j 'message 4) * 11 * @endcode * * @note Supports \ref fn_the "the" */ muse_cell fn_read_json( muse_env *env, void *context, muse_cell args ) { muse_port_t p = NULL; if ( args ) { p = muse_port( env, _evalnext(&args) ); } else { p = muse_current_port( env, MUSE_STDIN_PORT, NULL ); } muse_push_recent_scope( env ); return muse_pop_recent_scope( env, (muse_int)fn_read_json, json_read(p) ); }
int main(int argc, char *argv[]) { JSON *j; if(argc < 2) return EXIT_FAILURE; j = json_read(argv[1]); if(!j) { json_error("Unable to parse %s", argv[1]); return EXIT_FAILURE; } else { json_dump(j); json_free(j); return EXIT_SUCCESS; } }
static muse_cell json_read_object_items( muse_env *env, muse_port_t p, muse_cell table ) { json_skip_whitespace(p); if ( port_eof(p) ) return muse_raise_error( env, _csymbol(L"json:end-of-file-in-object"), MUSE_NIL ); else { muse_char c = port_getchar(p); if ( c == '}' ) { return table; } else { int sp = _spos(); muse_cell key, value; port_ungetchar(c,p); key = json_read_key(p); json_skip_whitespace(p); if ( port_eof(p) ) { return muse_raise_error( env, _csymbol(L"json:end-of-file-in-object"), MUSE_NIL ); } else { muse_char c = port_getchar(p); if ( c == ':' ) { value = json_read(p); muse_hashtable_put( env, table, key, value ); _unwind(sp); { muse_char c = port_getchar(p); if ( c == ',' ) { return json_read_object_items( env, p, table ); } else if ( c == '}' ) { return table; } else { return muse_raise_error( env, _csymbol(L"json:object-syntax-error"), table ); } } } else { return muse_raise_error( env, _csymbol(L"json:object-syntax-error"), table ); } } } } }
int read_json(int argc, char **argv, char *fname, const char *layername, int maxzoom, int minzoom, sqlite3 *outdb, struct pool *exclude, struct pool *include, int exclude_all, double droprate, int buffer, const char *tmpdir, double gamma, char *prevent) { int ret = EXIT_SUCCESS; char metaname[strlen(tmpdir) + strlen("/meta.XXXXXXXX") + 1]; char geomname[strlen(tmpdir) + strlen("/geom.XXXXXXXX") + 1]; char indexname[strlen(tmpdir) + strlen("/index.XXXXXXXX") + 1]; sprintf(metaname, "%s%s", tmpdir, "/meta.XXXXXXXX"); sprintf(geomname, "%s%s", tmpdir, "/geom.XXXXXXXX"); sprintf(indexname, "%s%s", tmpdir, "/index.XXXXXXXX"); int metafd = mkstemp(metaname); if (metafd < 0) { perror(metaname); exit(EXIT_FAILURE); } int geomfd = mkstemp(geomname); if (geomfd < 0) { perror(geomname); exit(EXIT_FAILURE); } int indexfd = mkstemp(indexname); if (indexfd < 0) { perror(indexname); exit(EXIT_FAILURE); } FILE *metafile = fopen(metaname, "wb"); if (metafile == NULL) { perror(metaname); exit(EXIT_FAILURE); } FILE *geomfile = fopen(geomname, "wb"); if (geomfile == NULL) { perror(geomname); exit(EXIT_FAILURE); } FILE *indexfile = fopen(indexname, "wb"); if (indexfile == NULL) { perror(indexname); exit(EXIT_FAILURE); } long long metapos = 0; long long geompos = 0; long long indexpos = 0; unlink(metaname); unlink(geomname); unlink(indexname); unsigned file_bbox[] = { UINT_MAX, UINT_MAX, 0, 0 }; unsigned midx = 0, midy = 0; long long seq = 0; int nlayers = argc; if (nlayers == 0) { nlayers = 1; } int n; for (n = 0; n < nlayers; n++) { json_pull *jp; const char *reading; FILE *fp; long long found_hashes = 0; long long found_features = 0; if (n >= argc) { reading = "standard input"; fp = stdin; } else { reading = argv[n]; fp = fopen(argv[n], "r"); if (fp == NULL) { perror(argv[n]); continue; } } jp = json_begin_file(fp); while (1) { json_object *j = json_read(jp); if (j == NULL) { if (jp->error != NULL) { fprintf(stderr, "%s:%d: %s\n", reading, jp->line, jp->error); } json_free(jp->root); break; } if (j->type == JSON_HASH) { found_hashes++; if (found_hashes == 50 && found_features == 0) { fprintf(stderr, "%s:%d: Not finding any GeoJSON features in input. Is your file just bare geometries?\n", reading, jp->line); break; } } json_object *type = json_hash_get(j, "type"); if (type == NULL || type->type != JSON_STRING || strcmp(type->string, "Feature") != 0) { continue; } found_features++; json_object *geometry = json_hash_get(j, "geometry"); if (geometry == NULL) { fprintf(stderr, "%s:%d: feature with no geometry\n", reading, jp->line); json_free(j); continue; } json_object *geometry_type = json_hash_get(geometry, "type"); if (geometry_type == NULL) { static int warned = 0; if (!warned) { fprintf(stderr, "%s:%d: null geometry (additional not reported)\n", reading, jp->line); warned = 1; } json_free(j); continue; } if (geometry_type->type != JSON_STRING) { fprintf(stderr, "%s:%d: geometry without type\n", reading, jp->line); json_free(j); continue; } json_object *properties = json_hash_get(j, "properties"); if (properties == NULL || (properties->type != JSON_HASH && properties->type != JSON_NULL)) { fprintf(stderr, "%s:%d: feature without properties hash\n", reading, jp->line); json_free(j); continue; } json_object *coordinates = json_hash_get(geometry, "coordinates"); if (coordinates == NULL || coordinates->type != JSON_ARRAY) { fprintf(stderr, "%s:%d: feature without coordinates array\n", reading, jp->line); json_free(j); continue; } int t; for (t = 0; t < GEOM_TYPES; t++) { if (strcmp(geometry_type->string, geometry_names[t]) == 0) { break; } } if (t >= GEOM_TYPES) { fprintf(stderr, "%s:%d: Can't handle geometry type %s\n", reading, jp->line, geometry_type->string); json_free(j); continue; } { unsigned bbox[] = { UINT_MAX, UINT_MAX, 0, 0 }; int nprop = 0; if (properties->type == JSON_HASH) { nprop = properties->length; } long long metastart = metapos; char *metakey[nprop]; char *metaval[nprop]; int metatype[nprop]; int m = 0; int i; for (i = 0; i < nprop; i++) { if (properties->keys[i]->type == JSON_STRING) { if (exclude_all) { if (!is_pooled(include, properties->keys[i]->string, VT_STRING)) { continue; } } else if (is_pooled(exclude, properties->keys[i]->string, VT_STRING)) { continue; } metakey[m] = properties->keys[i]->string; if (properties->values[i] != NULL && properties->values[i]->type == JSON_STRING) { metatype[m] = VT_STRING; metaval[m] = properties->values[i]->string; m++; } else if (properties->values[i] != NULL && properties->values[i]->type == JSON_NUMBER) { metatype[m] = VT_NUMBER; metaval[m] = properties->values[i]->string; m++; } else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_TRUE || properties->values[i]->type == JSON_FALSE)) { metatype[m] = VT_BOOLEAN; metaval[m] = properties->values[i]->type == JSON_TRUE ? "true" : "false"; m++; } else if (properties->values[i] != NULL && (properties->values[i]->type == JSON_NULL)) { ; } else { fprintf(stderr, "%s:%d: Unsupported property type for %s\n", reading, jp->line, properties->keys[i]->string); json_free(j); continue; } } } serialize_int(metafile, m, &metapos, fname); for (i = 0; i < m; i++) { serialize_int(metafile, metatype[i], &metapos, fname); serialize_string(metafile, metakey[i], &metapos, fname); serialize_string(metafile, metaval[i], &metapos, fname); } long long geomstart = geompos; serialize_byte(geomfile, mb_geometry[t], &geompos, fname); serialize_byte(geomfile, n, &geompos, fname); serialize_long_long(geomfile, metastart, &geompos, fname); parse_geometry(t, coordinates, bbox, &geompos, geomfile, VT_MOVETO, fname, jp); serialize_byte(geomfile, VT_END, &geompos, fname); /* * Note that minzoom for lines is the dimension * of the geometry in world coordinates, but * for points is the lowest zoom level (in tiles, * not in pixels) at which it should be drawn. * * So a line that is too small for, say, z8 * will have minzoom of 18 (if tile detail is 10), * not 8. */ int minzoom = 0; if (mb_geometry[t] == VT_LINE) { for (minzoom = 0; minzoom < 31; minzoom++) { unsigned mask = 1 << (32 - (minzoom + 1)); if (((bbox[0] & mask) != (bbox[2] & mask)) || ((bbox[1] & mask) != (bbox[3] & mask))) { break; } } } else if (mb_geometry[t] == VT_POINT) { double r = ((double) rand()) / RAND_MAX; if (r == 0) { r = .00000001; } minzoom = maxzoom - floor(log(r) / - log(droprate)); } serialize_byte(geomfile, minzoom, &geompos, fname); struct index index; index.start = geomstart; index.end = geompos; index.index = encode(bbox[0] / 2 + bbox[2] / 2, bbox[1] / 2 + bbox[3] / 2); fwrite_check(&index, sizeof(struct index), 1, indexfile, fname); indexpos += sizeof(struct index); for (i = 0; i < 2; i++) { if (bbox[i] < file_bbox[i]) { file_bbox[i] = bbox[i]; } } for (i = 2; i < 4; i++) { if (bbox[i] > file_bbox[i]) { file_bbox[i] = bbox[i]; } } if (seq % 10000 == 0) { fprintf(stderr, "Read %.2f million features\r", seq / 1000000.0); } seq++; } json_free(j); /* XXX check for any non-features in the outer object */ } json_end(jp); fclose(fp); } fclose(metafile); fclose(geomfile); fclose(indexfile); struct stat geomst; struct stat metast; if (fstat(geomfd, &geomst) != 0) { perror("stat geom\n"); exit(EXIT_FAILURE); } if (fstat(metafd, &metast) != 0) { perror("stat meta\n"); exit(EXIT_FAILURE); } if (geomst.st_size == 0 || metast.st_size == 0) { fprintf(stderr, "did not read any valid geometries\n"); exit(EXIT_FAILURE); } char *meta = (char *) mmap(NULL, metast.st_size, PROT_READ, MAP_PRIVATE, metafd, 0); if (meta == MAP_FAILED) { perror("mmap meta"); exit(EXIT_FAILURE); } struct pool file_keys1[nlayers]; struct pool *file_keys[nlayers]; int i; for (i = 0; i < nlayers; i++) { pool_init(&file_keys1[i], 0); file_keys[i] = &file_keys1[i]; } char *layernames[nlayers]; for (i = 0; i < nlayers; i++) { if (argc <= 1 && layername != NULL) { layernames[i] = strdup(layername); } else { char *src = argv[i]; if (argc < 1) { src = fname; } char *trunc = layernames[i] = malloc(strlen(src) + 1); const char *ocp, *use = src; for (ocp = src; *ocp; ocp++) { if (*ocp == '/' && ocp[1] != '\0') { use = ocp + 1; } } strcpy(trunc, use); char *cp = strstr(trunc, ".json"); if (cp != NULL) { *cp = '\0'; } cp = strstr(trunc, ".mbtiles"); if (cp != NULL) { *cp = '\0'; } layername = trunc; char *out = trunc; for (cp = trunc; *cp; cp++) { if (isalpha(*cp) || isdigit(*cp) || *cp == '_') { *out++ = *cp; } } *out = '\0'; printf("using layer %d name %s\n", i, trunc); } } /* Sort the index by geometry */ { int bytes = sizeof(struct index); fprintf(stderr, "Sorting %lld features\n", (long long) indexpos / bytes); int page = sysconf(_SC_PAGESIZE); long long unit = (50 * 1024 * 1024 / bytes) * bytes; while (unit % page != 0) { unit += bytes; } int nmerges = (indexpos + unit - 1) / unit; struct merge merges[nmerges]; long long start; for (start = 0; start < indexpos; start += unit) { long long end = start + unit; if (end > indexpos) { end = indexpos; } if (nmerges != 1) { fprintf(stderr, "Sorting part %lld of %d\r", start / unit + 1, nmerges); } merges[start / unit].start = start; merges[start / unit].end = end; merges[start / unit].next = NULL; void *map = mmap(NULL, end - start, PROT_READ | PROT_WRITE, MAP_PRIVATE, indexfd, start); if (map == MAP_FAILED) { perror("mmap"); exit(EXIT_FAILURE); } qsort(map, (end - start) / bytes, bytes, indexcmp); // Sorting and then copying avoids the need to // write out intermediate stages of the sort. void *map2 = mmap(NULL, end - start, PROT_READ | PROT_WRITE, MAP_SHARED, indexfd, start); if (map2 == MAP_FAILED) { perror("mmap (write)"); exit(EXIT_FAILURE); } memcpy(map2, map, end - start); munmap(map, end - start); munmap(map2, end - start); } if (nmerges != 1) { fprintf(stderr, "\n"); } void *map = mmap(NULL, indexpos, PROT_READ, MAP_PRIVATE, indexfd, 0); if (map == MAP_FAILED) { perror("mmap"); exit(EXIT_FAILURE); } FILE *f = fopen(indexname, "w"); if (f == NULL) { perror(indexname); exit(EXIT_FAILURE); } merge(merges, nmerges, (unsigned char *) map, f, bytes, indexpos / bytes); munmap(map, indexpos); fclose(f); close(indexfd); } /* Copy geometries to a new file in index order */ indexfd = open(indexname, O_RDONLY); if (indexfd < 0) { perror("reopen sorted index"); exit(EXIT_FAILURE); } struct index *index_map = mmap(NULL, indexpos, PROT_READ, MAP_PRIVATE, indexfd, 0); if (index_map == MAP_FAILED) { perror("mmap index"); exit(EXIT_FAILURE); } unlink(indexname); char *geom_map = mmap(NULL, geomst.st_size, PROT_READ, MAP_PRIVATE, geomfd, 0); if (geom_map == MAP_FAILED) { perror("mmap unsorted geometry"); exit(EXIT_FAILURE); } if (close(geomfd) != 0) { perror("close unsorted geometry"); } sprintf(geomname, "%s%s", tmpdir, "/geom.XXXXXXXX"); geomfd = mkstemp(geomname); if (geomfd < 0) { perror(geomname); exit(EXIT_FAILURE); } geomfile = fopen(geomname, "wb"); if (geomfile == NULL) { perror(geomname); exit(EXIT_FAILURE); } { geompos = 0; /* initial tile is 0/0/0 */ serialize_int(geomfile, 0, &geompos, fname); serialize_uint(geomfile, 0, &geompos, fname); serialize_uint(geomfile, 0, &geompos, fname); long long i; long long sum = 0; long long progress = 0; for (i = 0; i < indexpos / sizeof(struct index); i++) { fwrite_check(geom_map + index_map[i].start, sizeof(char), index_map[i].end - index_map[i].start, geomfile, fname); sum += index_map[i].end - index_map[i].start; long long p = 1000 * i / (indexpos / sizeof(struct index)); if (p != progress) { fprintf(stderr, "Reordering geometry: %3.1f%%\r", p / 10.0); progress = p; } } /* end of tile */ serialize_byte(geomfile, -2, &geompos, fname); fclose(geomfile); } if (munmap(index_map, indexpos) != 0) { perror("unmap sorted index"); } if (munmap(geom_map, geomst.st_size) != 0) { perror("unmap unsorted geometry"); } if (close(indexfd) != 0) { perror("close sorted index"); } /* Traverse and split the geometries for each zoom level */ geomfd = open(geomname, O_RDONLY); if (geomfd < 0) { perror("reopen sorted geometry"); exit(EXIT_FAILURE); } unlink(geomname); if (fstat(geomfd, &geomst) != 0) { perror("stat sorted geom\n"); exit(EXIT_FAILURE); } int fd[4]; off_t size[4]; fd[0] = geomfd; size[0] = geomst.st_size; int j; for (j = 1; j < 4; j++) { fd[j] = -1; size[j] = 0; } fprintf(stderr, "%lld features, %lld bytes of geometry, %lld bytes of metadata\n", seq, (long long) geomst.st_size, (long long) metast.st_size); int written = traverse_zooms(fd, size, meta, file_bbox, file_keys, &midx, &midy, layernames, maxzoom, minzoom, outdb, droprate, buffer, fname, tmpdir, gamma, nlayers, prevent); if (maxzoom != written) { fprintf(stderr, "\n\n\n*** NOTE TILES ONLY COMPLETE THROUGH ZOOM %d ***\n\n\n", written); maxzoom = written; ret = EXIT_FAILURE; } if (munmap(meta, metast.st_size) != 0) { perror("munmap meta"); } if (close(metafd) < 0) { perror("close meta"); } double minlat = 0, minlon = 0, maxlat = 0, maxlon = 0, midlat = 0, midlon = 0; tile2latlon(midx, midy, maxzoom, &maxlat, &minlon); tile2latlon(midx + 1, midy + 1, maxzoom, &minlat, &maxlon); midlat = (maxlat + minlat) / 2; midlon = (maxlon + minlon) / 2; tile2latlon(file_bbox[0], file_bbox[1], 32, &maxlat, &minlon); tile2latlon(file_bbox[2], file_bbox[3], 32, &minlat, &maxlon); if (midlat < minlat) { midlat = minlat; } if (midlat > maxlat) { midlat = maxlat; } if (midlon < minlon) { midlon = minlon; } if (midlon > maxlon) { midlon = maxlon; } mbtiles_write_metadata(outdb, fname, layernames, minzoom, maxzoom, minlat, minlon, maxlat, maxlon, midlat, midlon, file_keys, nlayers); // XXX layers for (i = 0; i < nlayers; i++) { pool_free_strings(&file_keys1[i]); free(layernames[i]); } return ret; }
/* * main() * * @function DronePi Application main * */ int main(int argc, char* argv[]) { //yaw pid int count; char ff; int cnt=0; int ycnt=0; //network about int tcp,udp; int flag,str_len,t=0; double x = 0,y=0,z=0; double pp,pi,pd; char pidbuf[100],tcp_flag,recv_flag; json_t *data; json_error_t error; // Yaw PID 상수 double yp,yi,yd; // Roll, Pitch PID 상수 double kp, ki, kd; // 모터 출력량 int throttle = 0; // 상대좌표 Yaw를 사용하기위한 보정 값 float adjustYaw=0.f; // Quardcopter 로 모터 4개 선언 Motor motor[4]; // imu 장치 MPU6050 선언 IMU imu; for(int i = 0 ; i < 4 ; i++) { motor[i].init(); } // Setting Pin to Raspberry pi gpio motor[0].setPin(22); motor[1].setPin(23); motor[2].setPin(24); motor[3].setPin(25); // ESC Calibration motor[0].calibration(); motor[1].calibration(); motor[2].calibration(); motor[3].calibration(); if(imu.init()) { printf("Plese check the MPU6050 device connection!!\n"); return 0; //센서 연결 실패 } // PID 연산을 위한 각 축의 PID 연산자 객체 선언 PID rollPid, pitchPid, yawPid; rollPid.init(); pitchPid.init(); yawPid.init(); kp = 2.0; // 1.2 ki = 0.1; // 0.00084 kd = 0.85; // 0.6134 rollPid.setTuning(2.0, 0.1, 0.78); pitchPid.setTuning(2.0, 0.1, 0.78); yawPid.setTuning(10.0, 0.f, 10.0); float roll, pitch, yaw, preYaw, rYaw; int pidRoll, pidPitch, pidYaw; // 자이로센서 init 및 calibration imu.calibration(); int Motor1_speed, Motor2_speed, Motor3_speed, Motor4_speed; printf("Connect Application!!\n"); // Network init if(network_init(&tcp,&udp)==-1) { printf("socket create error\n"); return 0; } printf("network init complete\n"); // 급격한 각도변화 발생시 비상제어. 착륙 실행 flag int Emergency = 0; // 상대 Yaw 좌표 preYaw = 0; /* * Drone Control routine * * 1. 조작 데이터 수신 * 2. 현재 각도 측정 * 3. PID 연산 * 4. 모터 속도 업데이트 * */ while(1) { // Get json data from android app flag=json_read(udp,&x,&y,&z,&t); if(flag==1) { throttle = t; } // 2. 현재 각도 측정 imu.getIMUData(&roll, &pitch, &yaw); // 센서 오류 및 오동작으로 인한 동작 방지 // 특정 각도 이상으로 기울어지면 종료할 수 있도록 함 if( pitch < -50 || pitch > 50 || roll < -50 || roll > 50) { Emergency = 1; } // 상대 Yaw 연산 if(preYaw>100&&yaw<-100) rYaw=360+yaw-preYaw; else if(preYaw<-100&&yaw>100) rYaw=360-yaw+preYaw; else rYaw= yaw - preYaw; if(ycnt==33) { printf("rYaw: %.2lf preYaw: %.2lf yaw: %.2lf\n",rYaw,preYaw,yaw); ycnt=0; } ycnt++; preYaw = yaw; // 각 축의 PID 연산 pidRoll = rollPid.calcPID(x, roll); pidPitch = pitchPid.calcPID(-y, pitch); pidYaw = yawPid.calcPID(0, rYaw-z); // Quardcopter type X 의 모터 속도 연산 Motor1_speed = throttle + pidRoll + pidPitch + pidYaw; Motor2_speed = throttle - pidRoll + pidPitch - pidYaw; Motor3_speed = throttle - pidRoll - pidPitch + pidYaw; Motor4_speed = throttle + pidRoll - pidPitch - pidYaw; if(cnt==33) { printf("X: %.2lf Y: %.2lf Z: %.2lf T:%d \n",x,y,z,t); printf("ROLL : %3.6f, PITCH %3.7f, YAW %3.7f\n", roll, pitch, yaw); printf("pidRoll : %d, pidPitch : %d pidYaw: %d\n", pidRoll,pidPitch,pidYaw); printf("motor speed [1]:%d [2]:%d [3]:%d [4]:%d\n\n\n", Motor1_speed, Motor2_speed, Motor3_speed, Motor4_speed); cnt=0; } cnt++; if(Emergency) { // 긴급상황. 모터속도 최소화 Motor1_speed = 700; Motor2_speed = 700; Motor3_speed = 700; Motor4_speed = 700; } if(Motor1_speed < 700) Motor1_speed = 700; if(Motor2_speed < 700) Motor2_speed = 700; if(Motor3_speed < 700) Motor3_speed = 700; if(Motor4_speed < 700) Motor4_speed = 700; // 모터 속도 업데이트 motor[0].setSpeed(Motor1_speed); motor[1].setSpeed(Motor2_speed); motor[2].setSpeed(Motor3_speed); motor[3].setSpeed(Motor4_speed); tcp_flag=tcp_read(tcp); if(tcp_flag==3) { motor[0].setSpeed(700); motor[1].setSpeed(700); motor[2].setSpeed(700); motor[3].setSpeed(700); memset(pidbuf,0,sizeof(pidbuf)); printf("pid reset flag\n"); str_len=recv(tcp,pidbuf,sizeof(pidbuf),MSG_DONTROUTE); pidbuf[str_len]=0; printf("pid reset data :%s\n",pidbuf); data=json_loads(pidbuf,JSON_DECODE_ANY,&error); if((json_unpack(data,"{s:f,s:f,s:f,s:f,s:f,s:f}","P_P",&pp,"P_I",&pi,"P_D",&pd,"Y_P",&yp,"Y_I",&yi,"Y_D",&yd))!=0) { printf("pid reset error\n"); recv_flag=0; send(tcp,&recv_flag,1,MSG_DONTROUTE); return 0; } recv_flag=1; send(tcp,&recv_flag,1,MSG_DONTROUTE); rollPid.initKpid(pp, pi, pd); pitchPid.initKpid(pp, pi, pd); yawPid.initKpid(yp, yi, yd); Emergency=0; printf("pid reset complete\n"); } else if(tcp_flag==5) { motor[0].setSpeed(700); motor[1].setSpeed(700); motor[2].setSpeed(700); motor[3].setSpeed(700); printf("drone exit\n"); break; } else if(tcp_flag==0) { motor[0].setSpeed(700); motor[1].setSpeed(700); motor[2].setSpeed(700); motor[3].setSpeed(700); printf("Controller connection less\n"); break; } }//end while(1) sleep(3); }//end int main()
void parse_json(json_feature_action *jfa, json_pull *jp) { long long found_hashes = 0; long long found_features = 0; long long found_geometries = 0; while (1) { json_object *j = json_read(jp); if (j == NULL) { if (jp->error != NULL) { fprintf(stderr, "%s:%d: %s\n", jfa->fname.c_str(), jp->line, jp->error); if (jp->root != NULL) { json_context(jp->root); } } json_free(jp->root); break; } if (j->type == JSON_HASH) { found_hashes++; if (found_hashes == 50 && found_features == 0 && found_geometries == 0) { fprintf(stderr, "%s:%d: Warning: not finding any GeoJSON features or geometries in input yet after 50 objects.\n", jfa->fname.c_str(), jp->line); } } json_object *type = json_hash_get(j, "type"); if (type == NULL || type->type != JSON_STRING) { continue; } if (found_features == 0) { int i; int is_geometry = 0; for (i = 0; i < GEOM_TYPES; i++) { if (strcmp(type->string, geometry_names[i]) == 0) { is_geometry = 1; break; } } if (is_geometry) { if (j->parent != NULL) { if (j->parent->type == JSON_ARRAY && j->parent->parent != NULL) { if (j->parent->parent->type == JSON_HASH) { json_object *geometries = json_hash_get(j->parent->parent, "geometries"); if (geometries != NULL) { // Parent of Parent must be a GeometryCollection is_geometry = 0; } } } else if (j->parent->type == JSON_HASH) { json_object *geometry = json_hash_get(j->parent, "geometry"); if (geometry != NULL) { // Parent must be a Feature is_geometry = 0; } } } } if (is_geometry) { json_object *jo = j; while (jo != NULL) { if (jo->parent != NULL && jo->parent->type == JSON_HASH) { if (json_hash_get(jo->parent, "properties") == jo) { // Ancestor is the value corresponding to a properties key is_geometry = 0; break; } } jo = jo->parent; } } if (is_geometry) { if (found_features != 0 && found_geometries == 0) { fprintf(stderr, "%s:%d: Warning: found a mixture of features and bare geometries\n", jfa->fname.c_str(), jp->line); } found_geometries++; jfa->add_feature(j, false, NULL, NULL, NULL, j); json_free(j); continue; } } if (strcmp(type->string, "Feature") != 0) { if (strcmp(type->string, "FeatureCollection") == 0) { jfa->check_crs(j); json_free(j); } continue; } if (found_features == 0 && found_geometries != 0) { fprintf(stderr, "%s:%d: Warning: found a mixture of features and bare geometries\n", jfa->fname.c_str(), jp->line); } found_features++; json_object *geometry = json_hash_get(j, "geometry"); if (geometry == NULL) { fprintf(stderr, "%s:%d: feature with no geometry\n", jfa->fname.c_str(), jp->line); json_context(j); json_free(j); continue; } json_object *properties = json_hash_get(j, "properties"); if (properties == NULL || (properties->type != JSON_HASH && properties->type != JSON_NULL)) { fprintf(stderr, "%s:%d: feature without properties hash\n", jfa->fname.c_str(), jp->line); json_context(j); json_free(j); continue; } bool is_feature = true; { json_object *jo = j; while (jo != NULL) { if (jo->parent != NULL && jo->parent->type == JSON_HASH) { if (json_hash_get(jo->parent, "properties") == jo) { // Ancestor is the value corresponding to a properties key is_feature = false; break; } } jo = jo->parent; } } if (!is_feature) { continue; } json_object *tippecanoe = json_hash_get(j, "tippecanoe"); json_object *id = json_hash_get(j, "id"); json_object *geometries = json_hash_get(geometry, "geometries"); if (geometries != NULL && geometries->type == JSON_ARRAY) { jfa->add_feature(geometries, true, properties, id, tippecanoe, j); } else { jfa->add_feature(geometry, false, properties, id, tippecanoe, j); } json_free(j); /* XXX check for any non-features in the outer object */ } }