1 // NavDataCache.cxx - defines a unified binary cache for navigation
2 // data, parsed from various text / XML sources.
4 // Written by James Turner, started 2012.
6 // Copyright (C) 2012 James Turner
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 // to ensure compatability between sqlite3_int64 and PositionedID,
27 // force the type used by sqlite to match PositionedID explicitly
28 #define SQLITE_INT64_TYPE int64_t
29 #define SQLITE_UINT64_TYPE uint64_t
31 #include "NavDataCache.hxx"
36 #include <stdint.h> // for int64_t
38 #include <boost/foreach.hpp>
43 #include <simgear/structure/exception.hxx>
44 #include <simgear/debug/logstream.hxx>
45 #include <simgear/bucket/newbucket.hxx>
46 #include <simgear/misc/sg_path.hxx>
47 #include <simgear/misc/strutils.hxx>
48 #include <simgear/threads/SGThread.hxx>
49 #include <simgear/threads/SGGuard.hxx>
51 #include <Main/globals.hxx>
52 #include "markerbeacon.hxx"
53 #include "navrecord.hxx"
54 #include <Airports/simple.hxx>
55 #include <Airports/runways.hxx>
56 #include <ATC/CommStation.hxx>
58 #include <Navaids/fixlist.hxx>
59 #include <Navaids/navdb.hxx>
60 #include "PositionedOctree.hxx"
61 #include <Airports/apt_loader.hxx>
62 #include <Navaids/airways.hxx>
63 #include <Airports/parking.hxx>
64 #include <Airports/gnnode.hxx>
68 #define SG_NAVCACHE SG_NAVAID
69 //#define LAZY_OCTREE_UPDATES 1
73 const int SCHEMA_VERSION = 6;
75 // bind a std::string to a sqlite statement. The std::string must live the
76 // entire duration of the statement execution - do not pass a temporary
77 // std::string, or the compiler may delete it, freeing the C-string storage,
78 // and causing subtle memory corruption bugs!
79 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
81 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
84 // variant of the above, which does not care about the lifetime of the
86 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
88 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
91 typedef sqlite3_stmt* sqlite3_stmt_ptr;
93 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
99 SGVec3d posA(sqlite3_value_double(argv[0]),
100 sqlite3_value_double(argv[1]),
101 sqlite3_value_double(argv[2]));
103 SGVec3d posB(sqlite3_value_double(argv[3]),
104 sqlite3_value_double(argv[4]),
105 sqlite3_value_double(argv[5]));
106 sqlite3_result_double(ctx, distSqr(posA, posB));
110 static string cleanRunwayNo(const string& aRwyNo)
112 if (aRwyNo[0] == 'x') {
113 return string(); // no ident for taxiways
116 string result(aRwyNo);
117 // canonicalise runway ident
118 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
119 result = "0" + aRwyNo;
122 // trim off trailing garbage
123 if (result.size() > 2) {
124 char suffix = toupper(result[2]);
126 result = result.substr(0, 2);
133 } // anonymous namespace
139 * Thread encapsulating a cache rebuild. This is not used to parallelise
140 * the rebuild - we must still wait until completion before doing other
141 * startup, since many things rely on a complete cache. The thread is used
142 * so we don't block the main event loop for an unacceptable duration,
143 * which causes 'not responding' / spinning beachballs on Windows & Mac
145 class RebuildThread : public SGThread
148 RebuildThread(NavDataCache* cache) :
155 bool isFinished() const
157 SGGuard<SGMutex> g(_lock);
166 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
168 SGGuard<SGMutex> g(_lock);
172 NavDataCache* _cache;
173 mutable SGMutex _lock;
177 ////////////////////////////////////////////////////////////////////////////
179 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
181 class AirportTower : public FGPositioned
184 AirportTower(PositionedID& guid, PositionedID airport,
185 const string& ident, const SGGeod& pos) :
186 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
191 class NavDataCache::NavDataCachePrivate
194 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
203 ~NavDataCachePrivate()
205 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
206 sqlite3_finalize(stmt);
215 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
216 sqlite3_open_v2(path.c_str(), &db,
217 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
220 sqlite3_stmt_ptr checkTables =
221 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
223 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
224 f_distanceCartSqrFunction, NULL, NULL);
226 execSelect(checkTables);
227 bool didCreate = false;
228 if (sqlite3_column_int(checkTables, 0) == 0) {
229 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
234 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
235 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
236 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
239 writeIntProperty("schema-version", SCHEMA_VERSION);
241 int schemaVersion = outer->readIntProperty("schema-version");
242 if (schemaVersion != SCHEMA_VERSION) {
243 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
244 throw sg_exception("Navcache schema has changed");
251 void checkCacheFile()
253 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
257 sqlite3_stmt_ptr stmt = prepare("PRAGMA integrity_check(1)");
258 if (!execSelect(stmt)) {
259 throw sg_exception("DB integrity check failed to run");
262 string v = (char*) sqlite3_column_text(stmt, 0);
264 throw sg_exception("DB integrity check returned:" + v);
267 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
271 void callSqlite(int result, const string& sql)
273 if (result == SQLITE_OK)
277 if (result == SQLITE_MISUSE) {
278 errMsg = "Sqlite API abuse";
279 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
281 errMsg = sqlite3_errmsg(db);
282 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
285 throw sg_exception("Sqlite error:" + errMsg, sql);
288 void runSQL(const string& sql)
290 sqlite3_stmt_ptr stmt;
291 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
295 } catch (sg_exception&) {
296 sqlite3_finalize(stmt);
300 sqlite3_finalize(stmt);
303 sqlite3_stmt_ptr prepare(const string& sql)
305 sqlite3_stmt_ptr stmt;
306 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
307 prepared.push_back(stmt);
311 void finalize(sqlite3_stmt_ptr s)
313 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
314 if (it == prepared.end()) {
315 throw sg_exception("Finalising statement that was not prepared");
322 void reset(sqlite3_stmt_ptr stmt)
325 if (sqlite3_reset(stmt) != SQLITE_OK) {
326 string errMsg = sqlite3_errmsg(db);
327 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
328 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
332 bool execSelect(sqlite3_stmt_ptr stmt)
334 return stepSelect(stmt);
337 static const int MAX_RETRIES = 10;
339 bool stepSelect(sqlite3_stmt_ptr stmt)
343 while (retries < MAX_RETRIES) {
344 result = sqlite3_step(stmt);
345 if (result == SQLITE_ROW) {
346 return true; // at least one result row
349 if (result == SQLITE_DONE) {
350 return false; // no result rows
353 if (result != SQLITE_LOCKED) {
358 } // of retry loop for DB locked
360 if (retries >= MAX_RETRIES) {
361 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_LOCKED retries");
366 if (result == SQLITE_MISUSE) {
367 errMsg = "Sqlite API abuse";
368 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
370 errMsg = sqlite3_errmsg(db);
371 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg
372 << " while running:\n\t" << sqlite3_sql(stmt));
375 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
378 void execSelect1(sqlite3_stmt_ptr stmt)
380 if (!execSelect(stmt)) {
381 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
382 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
386 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
389 return sqlite3_last_insert_rowid(db);
392 void execUpdate(sqlite3_stmt_ptr stmt)
399 runSQL("CREATE TABLE properties ("
404 runSQL("CREATE TABLE stat_cache ("
405 "path VARCHAR unique,"
409 runSQL("CREATE TABLE positioned ("
411 "ident VARCHAR collate nocase,"
412 "name VARCHAR collate nocase,"
423 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
424 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
425 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
426 // allow efficient querying of 'all ATIS at this airport' or
427 // 'all towers at this airport'
428 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
430 runSQL("CREATE TABLE airport ("
435 runSQL("CREATE TABLE comm ("
441 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
443 runSQL("CREATE TABLE runway ("
448 "displaced_threshold FLOAT,"
455 runSQL("CREATE TABLE navaid ("
464 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
466 runSQL("CREATE TABLE octree (children INT)");
468 runSQL("CREATE TABLE airway ("
469 "ident VARCHAR collate nocase,"
470 "network INT" // high-level or low-level
473 runSQL("CREATE INDEX airway_ident ON airway(ident)");
475 runSQL("CREATE TABLE airway_edge ("
482 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
484 runSQL("CREATE TABLE taxi_node ("
490 runSQL("CREATE TABLE parking ("
498 runSQL("CREATE TABLE groundnet_edge ("
504 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
505 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
508 void prepareQueries()
510 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
512 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
513 #define AND_TYPED "AND type>=?2 AND type <=?3"
514 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
515 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
516 "(path, stamp) VALUES (?,?)");
518 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
519 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
520 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
521 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
522 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
523 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
525 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
528 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
529 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
530 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
531 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
533 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
534 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
535 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
537 insertPositionedQuery = prepare("INSERT INTO positioned "
538 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
539 "cart_x, cart_y, cart_z)"
540 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
542 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
543 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
544 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
545 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
546 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
547 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
549 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
550 " VALUES (?, ?, ?)");
551 insertRunway = prepare("INSERT INTO runway "
552 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
553 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
554 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
557 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
558 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
560 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
561 "positioned.rowid=comm.rowid AND freq_khz=?1 "
562 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
564 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
565 "positioned.rowid=navaid.rowid "
566 "AND navaid.freq=?1 " AND_TYPED
567 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
569 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
570 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
572 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
573 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
575 // for an octree branch, return the child octree nodes which exist,
576 // described as a bit-mask
577 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
579 #ifdef LAZY_OCTREE_UPDATES
580 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
582 // mask the new child value into the existing one
583 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
586 // define a new octree node (with no children)
587 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
589 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
591 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
592 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
593 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
595 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
597 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
598 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
599 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
600 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
602 // three-way join to get the navaid ident and runway ident in a single select.
603 // we're joining positioned to itself by the navaid runway, with the complication
604 // that we need to join the navaids table to get the runway ID.
605 // we also need to filter by type to excluse glideslope (GS) matches
606 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
607 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
608 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
609 "AND (nav.type=?4 OR nav.type=?5)");
611 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
612 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
615 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
616 insertAirway = prepare("INSERT INTO airway (ident, network) "
619 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
620 "VALUES (?1, ?2, ?3, ?4)");
622 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
624 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
626 // parking / taxi-node graph
627 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
628 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
629 "VALUES (?1, ?2, ?3, ?4, ?5)");
630 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
632 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
633 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
634 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
635 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
636 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
638 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
640 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
641 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
642 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
643 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
645 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
646 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
647 "AND (type=?2 OR type=?3)");
648 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
649 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
651 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
652 "positioned.rowid = taxi_node.rowid AND airport=?1 "
653 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
656 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
657 "positioned.rowid = taxi_node.rowid AND airport=?1 "
659 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
661 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
662 "airport=?1 AND type=?4 AND "
663 "radius >= ?2 AND gate_type = ?3 AND "
664 "parking.rowid=positioned.rowid");
665 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
668 void writeIntProperty(const string& key, int value)
670 reset(clearProperty);
671 sqlite_bind_stdstring(clearProperty, 1, key);
672 execUpdate(clearProperty);
674 sqlite_bind_stdstring(writePropertyQuery, 1, key);
675 sqlite3_bind_int(writePropertyQuery, 2, value);
676 execSelect(writePropertyQuery);
680 FGPositioned* loadFromStmt(sqlite3_stmt_ptr query);
682 FGAirport* loadAirport(sqlite_int64 rowId,
683 FGPositioned::Type ty,
684 const string& id, const string& name, const SGGeod& pos)
686 reset(loadAirportStmt);
687 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
688 execSelect1(loadAirportStmt);
689 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
690 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
693 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
694 const string& id, const SGGeod& pos, PositionedID apt)
696 reset(loadRunwayStmt);
697 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
698 execSelect1(loadRunwayStmt);
700 double heading = sqlite3_column_double(loadRunwayStmt, 0);
701 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
702 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
703 int surface = sqlite3_column_int(loadRunwayStmt, 3);
705 if (ty == FGPositioned::TAXIWAY) {
706 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
708 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
709 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
710 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
711 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
712 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
713 displacedThreshold, stopway, surface, false);
715 if (reciprocal > 0) {
716 r->setReciprocalRunway(reciprocal);
727 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
728 const string& id, const string& name,
730 PositionedID airport)
732 reset(loadCommStation);
733 sqlite3_bind_int64(loadCommStation, 1, rowId);
734 execSelect1(loadCommStation);
736 int range = sqlite3_column_int(loadCommStation, 0);
737 int freqKhz = sqlite3_column_int(loadCommStation, 1);
739 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
740 c->setAirport(airport);
744 FGPositioned* loadNav(sqlite3_int64 rowId,
745 FGPositioned::Type ty, const string& id,
746 const string& name, const SGGeod& pos)
749 sqlite3_bind_int64(loadNavaid, 1, rowId);
750 execSelect1(loadNavaid);
752 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
753 // marker beacons are light-weight
754 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
755 (ty == FGPositioned::MM))
757 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
760 int rangeNm = sqlite3_column_int(loadNavaid, 0),
761 freq = sqlite3_column_int(loadNavaid, 1);
762 double mulituse = sqlite3_column_double(loadNavaid, 2);
763 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
765 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
768 FGPositioned* loadParking(sqlite3_int64 rowId,
769 const string& name, const SGGeod& pos,
770 PositionedID airport)
772 reset(loadParkingPos);
773 sqlite3_bind_int64(loadParkingPos, 1, rowId);
774 execSelect1(loadParkingPos);
776 double heading = sqlite3_column_double(loadParkingPos, 0);
777 int radius = sqlite3_column_int(loadParkingPos, 1);
778 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
779 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
780 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
782 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
785 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
786 PositionedID airport)
788 reset(loadTaxiNodeStmt);
789 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
790 execSelect1(loadTaxiNodeStmt);
792 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
793 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
794 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
797 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
798 const string& name, const SGGeod& pos, PositionedID apt,
801 SGVec3d cartPos(SGVec3d::fromGeod(pos));
803 reset(insertPositionedQuery);
804 sqlite3_bind_int(insertPositionedQuery, 1, ty);
805 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
806 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
807 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
808 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
809 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
810 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
813 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
814 assert(intersects(octreeLeaf->bbox(), cartPos));
815 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
817 sqlite3_bind_null(insertPositionedQuery, 8);
820 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
821 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
822 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
824 PositionedID r = execInsert(insertPositionedQuery);
828 FGPositioned::List findAllByString(const string& s, const string& column,
829 FGPositioned::Filter* filter, bool exact)
832 if (!exact) query += "%";
834 // build up SQL query text
835 string matchTerm = exact ? "=?1" : " LIKE ?1";
836 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
838 sql += " " AND_TYPED;
841 // find or prepare a suitable statement frrm the SQL
842 sqlite3_stmt_ptr stmt = findByStringDict[sql];
845 findByStringDict[sql] = stmt;
849 sqlite_bind_stdstring(stmt, 1, query);
851 sqlite3_bind_int(stmt, 2, filter->minType());
852 sqlite3_bind_int(stmt, 3, filter->maxType());
855 FGPositioned::List result;
856 // run the prepared SQL
857 while (stepSelect(stmt))
859 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
860 if (filter && !filter->pass(pos)) {
864 result.push_back(pos);
870 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
872 PositionedIDVec result;
873 while (stepSelect(query)) {
874 result.push_back(sqlite3_column_int64(query, 0));
879 double runwayLengthFt(PositionedID rwy)
881 reset(runwayLengthFtQuery);
882 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
883 execSelect1(runwayLengthFtQuery);
884 return sqlite3_column_double(runwayLengthFtQuery, 0);
887 void flushDeferredOctreeUpdates()
889 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
890 reset(updateOctreeChildren);
891 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
892 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
893 execUpdate(updateOctreeChildren);
896 deferredOctreeUpdates.clear();
903 /// the actual cache of ID -> instances. This holds an owning reference,
904 /// so once items are in the cache they will never be deleted until
905 /// the cache drops its reference
906 PositionedCache cache;
907 unsigned int cacheHits, cacheMisses;
909 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
910 carrierDatPath, airwayDatPath;
912 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
913 stampFileCache, statCacheCheck,
914 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
916 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
918 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
919 insertCommStation, insertNavaid;
920 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
921 setAirportPos, updateRunwayThreshold, updateILS;
923 sqlite3_stmt_ptr findClosestWithIdent;
924 // octree (spatial index) related queries
925 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
926 getOctreeLeafChildren;
928 sqlite3_stmt_ptr searchAirports;
929 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
930 findNavsByFreqNoPos, findNavaidForRunway;
931 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
932 sqlite3_stmt_ptr findAirportRunway,
935 sqlite3_stmt_ptr runwayLengthFtQuery;
938 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
941 // groundnet (parking, taxi node graph)
942 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
943 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
944 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
945 setParkingPushBack, findNearestRunwayTaxiNode;
947 // since there's many permutations of ident/name queries, we create
948 // them programtically, but cache the exact query by its raw SQL once
950 std::map<string, sqlite3_stmt_ptr> findByStringDict;
952 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
955 std::set<Octree::Branch*> deferredOctreeUpdates;
957 // if we're performing a rebuild, the thread that is doing the work.
959 std::auto_ptr<RebuildThread> rebuilder;
962 //////////////////////////////////////////////////////////////////////
964 FGPositioned* NavDataCache::NavDataCachePrivate::loadFromStmt(sqlite3_stmt_ptr query)
967 sqlite3_int64 rowid = sqlite3_column_int64(query, 0);
968 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(query, 1);
970 string ident = (char*) sqlite3_column_text(query, 2);
971 string name = (char*) sqlite3_column_text(query, 3);
972 sqlite3_int64 aptId = sqlite3_column_int64(query, 4);
973 double lon = sqlite3_column_double(query, 5);
974 double lat = sqlite3_column_double(query, 6);
975 double elev = sqlite3_column_double(query, 7);
976 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
979 case FGPositioned::AIRPORT:
980 case FGPositioned::SEAPORT:
981 case FGPositioned::HELIPORT:
982 return loadAirport(rowid, ty, ident, name, pos);
984 case FGPositioned::TOWER:
985 return new AirportTower(rowid, aptId, ident, pos);
987 case FGPositioned::RUNWAY:
988 case FGPositioned::TAXIWAY:
989 return loadRunway(rowid, ty, ident, pos, aptId);
991 case FGPositioned::LOC:
992 case FGPositioned::VOR:
993 case FGPositioned::GS:
994 case FGPositioned::ILS:
995 case FGPositioned::NDB:
996 case FGPositioned::OM:
997 case FGPositioned::MM:
998 case FGPositioned::IM:
999 case FGPositioned::DME:
1000 case FGPositioned::TACAN:
1001 case FGPositioned::MOBILE_TACAN:
1004 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
1005 if (apt->validateILSData()) {
1006 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1007 // queried data above is probably invalid, force us to go around again
1008 // (the next time through, validateILSData will return false)
1009 return outer->loadById(rowid);
1013 return loadNav(rowid, ty, ident, name, pos);
1016 case FGPositioned::FIX:
1017 return new FGFix(rowid, ident, pos);
1019 case FGPositioned::WAYPOINT:
1021 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
1025 case FGPositioned::FREQ_GROUND:
1026 case FGPositioned::FREQ_TOWER:
1027 case FGPositioned::FREQ_ATIS:
1028 case FGPositioned::FREQ_AWOS:
1029 case FGPositioned::FREQ_APP_DEP:
1030 case FGPositioned::FREQ_ENROUTE:
1031 case FGPositioned::FREQ_CLEARANCE:
1032 case FGPositioned::FREQ_UNICOM:
1033 return loadComm(rowid, ty, ident, name, pos, aptId);
1035 case FGPositioned::TAXI_NODE:
1036 return loadTaxiNode(rowid, pos, aptId);
1038 case FGPositioned::PARKING:
1039 return loadParking(rowid, ident, pos, aptId);
1047 static NavDataCache* static_instance = NULL;
1049 NavDataCache::NavDataCache()
1051 const int MAX_TRIES = 3;
1052 SGPath homePath(globals->get_fg_home());
1053 homePath.append("navdata.cache");
1055 for (int t=0; t < MAX_TRIES; ++t) {
1057 d.reset(new NavDataCachePrivate(homePath, this));
1059 //d->checkCacheFile();
1060 // reached this point with no exception, success
1062 } catch (sg_exception& e) {
1063 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1064 << " (attempt " << t << ")");
1070 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1071 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1072 Octree::global_spatialOctree =
1073 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1075 d->aptDatPath = SGPath(globals->get_fg_root());
1076 d->aptDatPath.append("Airports/apt.dat.gz");
1078 d->metarDatPath = SGPath(globals->get_fg_root());
1079 d->metarDatPath.append("Airports/metar.dat.gz");
1081 d->navDatPath = SGPath(globals->get_fg_root());
1082 d->navDatPath.append("Navaids/nav.dat.gz");
1084 d->fixDatPath = SGPath(globals->get_fg_root());
1085 d->fixDatPath.append("Navaids/fix.dat.gz");
1087 d->carrierDatPath = SGPath(globals->get_fg_root());
1088 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1090 d->airwayDatPath = SGPath(globals->get_fg_root());
1091 d->airwayDatPath.append("Navaids/awy.dat.gz");
1094 NavDataCache::~NavDataCache()
1096 assert(static_instance == this);
1097 static_instance = NULL;
1098 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1102 NavDataCache* NavDataCache::instance()
1104 if (!static_instance) {
1105 static_instance = new NavDataCache;
1108 return static_instance;
1111 bool NavDataCache::isRebuildRequired()
1113 if (isCachedFileModified(d->aptDatPath) ||
1114 isCachedFileModified(d->metarDatPath) ||
1115 isCachedFileModified(d->navDatPath) ||
1116 isCachedFileModified(d->fixDatPath) ||
1117 isCachedFileModified(d->airwayDatPath))
1119 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1123 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1124 if (readStringProperty("scenery_paths") != sceneryPaths) {
1125 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1129 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1133 bool NavDataCache::rebuild()
1135 if (!d->rebuilder.get()) {
1136 d->rebuilder.reset(new RebuildThread(this));
1137 d->rebuilder->start();
1140 // poll the rebuild thread
1141 bool fin = d->rebuilder->isFinished();
1143 d->rebuilder.reset(); // all done!
1148 void NavDataCache::doRebuild()
1152 d->runSQL("DELETE FROM positioned");
1153 d->runSQL("DELETE FROM airport");
1154 d->runSQL("DELETE FROM runway");
1155 d->runSQL("DELETE FROM navaid");
1156 d->runSQL("DELETE FROM comm");
1157 d->runSQL("DELETE FROM octree");
1158 d->runSQL("DELETE FROM airway");
1159 d->runSQL("DELETE FROM airway_edge");
1160 d->runSQL("DELETE FROM taxi_node");
1161 d->runSQL("DELETE FROM parking");
1162 d->runSQL("DELETE FROM groundnet_edge");
1163 d->runSQL("DELETE FROM stat_cache");
1165 // initialise the root octree node
1166 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1171 airportDBLoad(d->aptDatPath);
1172 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1174 metarDataLoad(d->metarDatPath);
1175 stampCacheFile(d->aptDatPath);
1176 stampCacheFile(d->metarDatPath);
1179 loadFixes(d->fixDatPath);
1180 stampCacheFile(d->fixDatPath);
1181 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1184 navDBInit(d->navDatPath);
1185 stampCacheFile(d->navDatPath);
1186 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1188 loadCarrierNav(d->carrierDatPath);
1189 stampCacheFile(d->carrierDatPath);
1192 Airway::load(d->airwayDatPath);
1193 stampCacheFile(d->airwayDatPath);
1194 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1196 d->flushDeferredOctreeUpdates();
1198 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1199 writeStringProperty("scenery_paths", sceneryPaths);
1201 d->runSQL("COMMIT");
1202 } catch (sg_exception& e) {
1203 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1204 // abandon the DB transation completely
1205 d->runSQL("ROLLBACK");
1209 int NavDataCache::readIntProperty(const string& key)
1211 d->reset(d->readPropertyQuery);
1212 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1214 if (d->execSelect(d->readPropertyQuery)) {
1215 return sqlite3_column_int(d->readPropertyQuery, 0);
1217 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1218 return 0; // no such property
1222 double NavDataCache::readDoubleProperty(const string& key)
1224 d->reset(d->readPropertyQuery);
1225 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1226 if (d->execSelect(d->readPropertyQuery)) {
1227 return sqlite3_column_double(d->readPropertyQuery, 0);
1229 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1230 return 0.0; // no such property
1234 string NavDataCache::readStringProperty(const string& key)
1236 d->reset(d->readPropertyQuery);
1237 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1238 if (d->execSelect(d->readPropertyQuery)) {
1239 return (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1241 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1242 return string(); // no such property
1246 void NavDataCache::writeIntProperty(const string& key, int value)
1248 d->writeIntProperty(key, value);
1251 void NavDataCache::writeStringProperty(const string& key, const string& value)
1253 d->reset(d->clearProperty);
1254 sqlite_bind_stdstring(d->clearProperty, 1, key);
1255 d->execUpdate(d->clearProperty);
1257 d->reset(d->writePropertyQuery);
1258 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1259 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1260 d->execSelect(d->writePropertyQuery);
1263 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1265 d->reset(d->clearProperty);
1266 sqlite_bind_stdstring(d->clearProperty, 1, key);
1267 d->execUpdate(d->clearProperty);
1269 d->reset(d->writePropertyQuery);
1270 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1271 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1272 d->execSelect(d->writePropertyQuery);
1275 string_list NavDataCache::readStringListProperty(const string& key)
1277 d->reset(d->readPropertyQuery);
1278 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1280 while (d->stepSelect(d->readPropertyQuery)) {
1281 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1287 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1289 d->reset(d->clearProperty);
1290 sqlite_bind_stdstring(d->clearProperty, 1, key);
1291 d->execUpdate(d->clearProperty);
1293 BOOST_FOREACH(string value, values) {
1294 d->reset(d->writePropertyMulti);
1295 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1296 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1297 d->execInsert(d->writePropertyMulti);
1301 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1303 if (!path.exists()) {
1304 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1307 d->reset(d->statCacheCheck);
1308 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1309 if (d->execSelect(d->statCacheCheck)) {
1310 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1311 time_t delta = std::labs(modtime - path.modTime());
1314 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1317 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1318 // and then changed file again within x seconds - so it's suspicious...
1319 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1320 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1325 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1327 return (delta != 0);
1329 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1334 void NavDataCache::stampCacheFile(const SGPath& path)
1336 d->reset(d->stampFileCache);
1337 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1338 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1339 d->execInsert(d->stampFileCache);
1342 void NavDataCache::beginTransaction()
1347 void NavDataCache::commitTransaction()
1349 d->runSQL("COMMIT");
1352 void NavDataCache::abortTransaction()
1354 d->runSQL("ROLLBACK");
1357 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1363 PositionedCache::iterator it = d->cache.find(rowid);
1364 if (it != d->cache.end()) {
1366 return it->second; // cache it
1369 d->reset(d->loadPositioned);
1370 sqlite3_bind_int64(d->loadPositioned, 1, rowid);
1371 FGPositioned* pos = d->loadFromStmt(d->loadPositioned);
1373 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1379 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1382 // airports have their pos computed based on the avergae runway centres
1383 // so the pos isn't available immediately. Pass a dummy pos and avoid
1384 // doing spatial indexing until later
1385 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1387 false /* spatial index */);
1389 d->reset(d->insertAirport);
1390 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1391 d->execInsert(d->insertAirport);
1396 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1398 if (d->cache.find(item) != d->cache.end()) {
1399 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1400 d->cache[item]->modifyPosition(pos);
1403 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1405 d->reset(d->setAirportPos);
1406 sqlite3_bind_int(d->setAirportPos, 1, item);
1407 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1408 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1409 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1411 // bug 905; the octree leaf may change here, but the leaf may already be
1412 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1413 // we may be called here as a result of loading one of those leaf's children.
1414 // instead of dealing with all those possibilites, such as modifying
1415 // the in-memory leaf's STL child container, we simply leave the runtime
1416 // structures alone. This is fine providing items do no move very far, since
1417 // all the spatial searches ultimately use the items' real cartesian position,
1418 // which was updated above.
1419 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1420 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1422 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1423 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1424 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1427 d->execUpdate(d->setAirportPos);
1430 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1432 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1433 pos, airportId, true /* spatial index */);
1437 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1438 const SGGeod& pos, PositionedID apt,
1439 double heading, double length, double width, double displacedThreshold,
1440 double stopway, int surfaceCode)
1442 // only runways are spatially indexed; don't bother indexing taxiways
1444 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1446 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1448 d->reset(d->insertRunway);
1449 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1450 sqlite3_bind_double(d->insertRunway, 2, heading);
1451 sqlite3_bind_double(d->insertRunway, 3, length);
1452 sqlite3_bind_double(d->insertRunway, 4, width);
1453 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1454 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1455 sqlite3_bind_double(d->insertRunway, 7, stopway);
1457 return d->execInsert(d->insertRunway);
1460 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1462 d->reset(d->setRunwayReciprocal);
1463 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1464 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1465 d->execUpdate(d->setRunwayReciprocal);
1467 // and the opposite direction too!
1468 d->reset(d->setRunwayReciprocal);
1469 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1470 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1471 d->execUpdate(d->setRunwayReciprocal);
1474 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1476 d->reset(d->setRunwayILS);
1477 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1478 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1479 d->execUpdate(d->setRunwayILS);
1482 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1483 double aHeading, double aDisplacedThreshold,
1486 // update the runway information
1487 d->reset(d->updateRunwayThreshold);
1488 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1489 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1490 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1491 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1492 d->execUpdate(d->updateRunwayThreshold);
1494 // compute the new runway center, based on the threshold lat/lon and length,
1495 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1498 SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER, newCenter, dummy);
1500 // now update the positional data
1501 updatePosition(runwayID, newCenter);
1505 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1506 const string& name, const SGGeod& pos,
1507 int freq, int range, double multiuse,
1508 PositionedID apt, PositionedID runway)
1510 bool spatialIndex = true;
1511 if (ty == FGPositioned::MOBILE_TACAN) {
1512 spatialIndex = false;
1515 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1517 d->reset(d->insertNavaid);
1518 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1519 sqlite3_bind_int(d->insertNavaid, 2, freq);
1520 sqlite3_bind_int(d->insertNavaid, 3, range);
1521 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1522 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1523 return d->execInsert(d->insertNavaid);
1526 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1528 d->reset(d->updateILS);
1529 sqlite3_bind_int64(d->updateILS, 1, ils);
1530 sqlite3_bind_double(d->updateILS, 2, aHdg);
1531 d->execUpdate(d->updateILS);
1532 updatePosition(ils, newPos);
1535 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1536 const string& name, const SGGeod& pos, int freq, int range,
1539 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1540 d->reset(d->insertCommStation);
1541 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1542 sqlite3_bind_int(d->insertCommStation, 2, freq);
1543 sqlite3_bind_int(d->insertCommStation, 3, range);
1544 return d->execInsert(d->insertCommStation);
1547 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1549 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1552 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1554 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1555 true /* spatial index */);
1558 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1560 d->reset(d->setAirportMetar);
1561 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1562 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1563 d->execUpdate(d->setAirportMetar);
1566 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1567 FGPositioned::Filter* filter, bool exact)
1569 return d->findAllByString(s, "ident", filter, exact);
1572 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1573 FGPositioned::Filter* filter, bool exact)
1575 return d->findAllByString(s, "name", filter, exact);
1578 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1579 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1581 d->reset(d->findClosestWithIdent);
1582 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1584 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1585 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1586 } else { // full type range
1587 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1588 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1591 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1592 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1593 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1594 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1596 while (d->stepSelect(d->findClosestWithIdent)) {
1597 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1598 if (aFilter && !aFilter->pass(pos)) {
1605 return NULL; // no matches at all
1609 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1611 d->reset(d->getOctreeChildren);
1612 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1613 d->execSelect1(d->getOctreeChildren);
1614 return sqlite3_column_int(d->getOctreeChildren, 0);
1617 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1619 d->reset(d->insertOctree);
1620 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1621 d->execInsert(d->insertOctree);
1623 #ifdef LAZY_OCTREE_UPDATES
1624 d->deferredOctreeUpdates.insert(pr);
1626 // lowest three bits of node ID are 0..7 index of the child in the parent
1627 int childIndex = nd->guid() & 0x07;
1629 d->reset(d->updateOctreeChildren);
1630 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1631 // mask has bit N set where child N exists
1632 int childMask = 1 << childIndex;
1633 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1634 d->execUpdate(d->updateOctreeChildren);
1639 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1641 d->reset(d->getOctreeLeafChildren);
1642 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1644 TypedPositionedVec r;
1645 while (d->stepSelect(d->getOctreeLeafChildren)) {
1646 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1647 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1648 r.push_back(std::make_pair(ty,
1649 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1657 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1658 * implement the AirportList dialog. It's unfortunate that it needs to reside
1659 * here, but for now it's least ugly solution.
1661 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1663 d->reset(d->searchAirports);
1664 string s = "%" + aFilter + "%";
1665 sqlite_bind_stdstring(d->searchAirports, 1, s);
1667 unsigned int numMatches = 0, numAllocated = 16;
1668 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1670 while (d->stepSelect(d->searchAirports)) {
1671 if ((numMatches + 1) >= numAllocated) {
1672 numAllocated <<= 1; // double in size!
1673 // reallocate results array
1674 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1675 memcpy(nresult, result, sizeof(char*) * numMatches);
1680 // nasty code to avoid excessive string copying and allocations.
1681 // We format results as follows (note whitespace!):
1682 // ' name-of-airport-chars (ident)'
1683 // so the total length is:
1684 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1685 // which gives a grand total of 7 + name-length + icao-length.
1686 // note the ident can be three letters (non-ICAO local strip), four
1687 // (default ICAO) or more (extended format ICAO)
1688 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1689 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1690 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1693 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1699 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1704 result[numMatches++] = entry;
1707 result[numMatches] = NULL; // end of list marker
1712 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1714 d->reset(d->findCommByFreq);
1715 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1717 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1718 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1719 } else { // full type range
1720 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1721 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1724 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1725 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1726 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1727 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1729 while (d->execSelect(d->findCommByFreq)) {
1730 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1731 if (aFilter && !aFilter->pass(p)) {
1742 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1744 d->reset(d->findNavsByFreq);
1745 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1747 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1748 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1749 } else { // full type range
1750 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1751 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1754 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1755 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1756 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1757 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1759 return d->selectIds(d->findNavsByFreq);
1763 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1765 d->reset(d->findNavsByFreqNoPos);
1766 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1768 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1769 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1770 } else { // full type range
1771 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1772 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1775 return d->selectIds(d->findNavsByFreqNoPos);
1779 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1780 FGPositioned::Type maxTy)
1782 if (maxTy == FGPositioned::INVALID) {
1783 maxTy = ty; // single-type range
1786 d->reset(d->getAirportItems);
1787 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1788 sqlite3_bind_int(d->getAirportItems, 2, ty);
1789 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1791 return d->selectIds(d->getAirportItems);
1795 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1796 const std::string& ident)
1798 d->reset(d->getAirportItemByIdent);
1799 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1800 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1801 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1803 if (!d->execSelect(d->getAirportItemByIdent)) {
1807 return sqlite3_column_int64(d->getAirportItemByIdent, 0);
1811 NavDataCache::findAirportRunway(const std::string& aName)
1813 if (aName.empty()) {
1814 return AirportRunwayPair();
1817 string_list parts = simgear::strutils::split(aName);
1818 if (parts.size() < 2) {
1819 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1820 return AirportRunwayPair();
1823 d->reset(d->findAirportRunway);
1824 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1825 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1826 if (!d->execSelect(d->findAirportRunway)) {
1827 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1828 return AirportRunwayPair();
1831 // success, extract the IDs and continue
1832 return AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1833 sqlite3_column_int64(d->findAirportRunway, 1));
1837 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1839 d->reset(d->findILS);
1840 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1841 sqlite3_bind_int64(d->findILS, 2, airport);
1842 sqlite_bind_stdstring(d->findILS, 3, runway);
1844 if (!d->execSelect(d->findILS)) {
1848 return sqlite3_column_int64(d->findILS, 0);
1851 int NavDataCache::findAirway(int network, const string& aName)
1853 d->reset(d->findAirway);
1854 sqlite3_bind_int(d->findAirway, 1, network);
1855 sqlite_bind_stdstring(d->findAirway, 2, aName);
1856 if (d->execSelect(d->findAirway)) {
1858 return sqlite3_column_int(d->findAirway, 0);
1861 d->reset(d->insertAirway);
1862 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1863 sqlite3_bind_int(d->insertAirway, 2, network);
1864 return d->execInsert(d->insertAirway);
1867 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1869 // assume all edges are bidirectional for the moment
1870 for (int i=0; i<2; ++i) {
1871 d->reset(d->insertAirwayEdge);
1872 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1873 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1874 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1875 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1876 d->execInsert(d->insertAirwayEdge);
1878 std::swap(from, to);
1882 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1884 d->reset(d->isPosInAirway);
1885 sqlite3_bind_int(d->isPosInAirway, 1, network);
1886 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1887 bool ok = d->execSelect(d->isPosInAirway);
1891 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1893 d->reset(d->airwayEdgesFrom);
1894 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1895 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1897 AirwayEdgeVec result;
1898 while (d->stepSelect(d->airwayEdgesFrom)) {
1899 result.push_back(AirwayEdge(
1900 sqlite3_column_int(d->airwayEdgesFrom, 0),
1901 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1907 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
1909 d->reset(d->findNavaidForRunway);
1910 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
1911 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
1912 if (!d->execSelect(d->findNavaidForRunway)) {
1916 return sqlite3_column_int64(d->findNavaidForRunway, 0);
1920 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
1921 PositionedID aAirport,
1922 double aHeading, int aRadius, const std::string& aAircraftType,
1923 const std::string& aAirlines)
1925 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
1927 // we need to insert a row into the taxi_node table, otherwise we can't maintain
1928 // the appropriate pushback flag.
1929 d->reset(d->insertTaxiNode);
1930 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
1931 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
1932 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
1933 d->execInsert(d->insertTaxiNode);
1935 d->reset(d->insertParkingPos);
1936 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
1937 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
1938 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
1939 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
1940 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
1941 return d->execInsert(d->insertParkingPos);
1944 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
1946 d->reset(d->setParkingPushBack);
1947 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
1948 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
1949 d->execUpdate(d->setParkingPushBack);
1953 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
1955 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
1956 d->reset(d->insertTaxiNode);
1957 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
1958 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
1959 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
1960 return d->execInsert(d->insertTaxiNode);
1963 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
1965 d->reset(d->insertTaxiEdge);
1966 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
1967 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
1968 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
1969 d->execInsert(d->insertTaxiEdge);
1972 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
1974 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
1976 sqlite3_bind_int64(q, 1, aAirport);
1977 return d->selectIds(q);
1980 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
1982 d->reset(d->markTaxiNodeAsPushback);
1983 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
1984 d->execUpdate(d->markTaxiNodeAsPushback);
1987 static double headingDifferenceDeg(double crs1, double crs2)
1989 double diff = crs2 - crs1;
1990 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
1994 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
1995 bool onRunway, FGRunway* aRunway)
1997 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
1999 sqlite3_bind_int64(q, 1, airport);
2001 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2002 sqlite3_bind_double(q, 2, cartPos.x());
2003 sqlite3_bind_double(q, 3, cartPos.y());
2004 sqlite3_bind_double(q, 4, cartPos.z());
2006 while (d->execSelect(q)) {
2007 PositionedID id = sqlite3_column_int64(q, 0);
2012 // ensure found node lies on the runway
2013 FGPositionedRef node = loadById(id);
2014 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2015 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2023 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2025 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2027 sqlite3_bind_int64(q, 1, pos);
2028 return d->selectIds(q);
2031 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2034 d->reset(d->findAirportParking);
2035 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2036 sqlite3_bind_int(d->findAirportParking, 2, radius);
2037 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2039 return d->selectIds(d->findAirportParking);
2042 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2044 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2045 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2046 sqlite3_bind_int64(q, 2, aAirport);
2049 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2050 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2051 sqlite3_bind_int64(q, 2, aAirport);
2054 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2055 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2056 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2057 sqlite3_bind_int64(q, 3, aAirport);
2060 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2061 sqlite3_bind_int64(q, 1, aAirport);
2065 } // of namespace flightgear