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 MAX_RETRIES = 10;
74 const int SCHEMA_VERSION = 6;
76 // bind a std::string to a sqlite statement. The std::string must live the
77 // entire duration of the statement execution - do not pass a temporary
78 // std::string, or the compiler may delete it, freeing the C-string storage,
79 // and causing subtle memory corruption bugs!
80 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
82 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
85 // variant of the above, which does not care about the lifetime of the
87 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
89 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
92 typedef sqlite3_stmt* sqlite3_stmt_ptr;
94 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
100 SGVec3d posA(sqlite3_value_double(argv[0]),
101 sqlite3_value_double(argv[1]),
102 sqlite3_value_double(argv[2]));
104 SGVec3d posB(sqlite3_value_double(argv[3]),
105 sqlite3_value_double(argv[4]),
106 sqlite3_value_double(argv[5]));
107 sqlite3_result_double(ctx, distSqr(posA, posB));
111 static string cleanRunwayNo(const string& aRwyNo)
113 if (aRwyNo[0] == 'x') {
114 return string(); // no ident for taxiways
117 string result(aRwyNo);
118 // canonicalise runway ident
119 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
120 result = "0" + aRwyNo;
123 // trim off trailing garbage
124 if (result.size() > 2) {
125 char suffix = toupper(result[2]);
127 result = result.substr(0, 2);
134 } // anonymous namespace
140 * Thread encapsulating a cache rebuild. This is not used to parallelise
141 * the rebuild - we must still wait until completion before doing other
142 * startup, since many things rely on a complete cache. The thread is used
143 * so we don't block the main event loop for an unacceptable duration,
144 * which causes 'not responding' / spinning beachballs on Windows & Mac
146 class RebuildThread : public SGThread
149 RebuildThread(NavDataCache* cache) :
156 bool isFinished() const
158 SGGuard<SGMutex> g(_lock);
167 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
169 SGGuard<SGMutex> g(_lock);
173 NavDataCache* _cache;
174 mutable SGMutex _lock;
178 ////////////////////////////////////////////////////////////////////////////
180 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
182 class AirportTower : public FGPositioned
185 AirportTower(PositionedID& guid, PositionedID airport,
186 const string& ident, const SGGeod& pos) :
187 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
192 class NavDataCache::NavDataCachePrivate
195 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
202 transactionAborted(false)
206 ~NavDataCachePrivate()
208 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
209 sqlite3_finalize(stmt);
218 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
219 sqlite3_open_v2(path.c_str(), &db,
220 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
223 sqlite3_stmt_ptr checkTables =
224 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
226 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
227 f_distanceCartSqrFunction, NULL, NULL);
229 execSelect(checkTables);
230 bool didCreate = false;
231 if (sqlite3_column_int(checkTables, 0) == 0) {
232 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
237 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
238 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
239 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
242 writeIntProperty("schema-version", SCHEMA_VERSION);
244 int schemaVersion = outer->readIntProperty("schema-version");
245 if (schemaVersion != SCHEMA_VERSION) {
246 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
247 throw sg_exception("Navcache schema has changed");
254 void checkCacheFile()
256 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
260 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
261 if (!execSelect(stmt)) {
262 throw sg_exception("DB integrity check failed to run");
265 string v = (char*) sqlite3_column_text(stmt, 0);
267 throw sg_exception("DB integrity check returned:" + v);
270 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
274 void callSqlite(int result, const string& sql)
276 if (result == SQLITE_OK)
280 if (result == SQLITE_MISUSE) {
281 errMsg = "Sqlite API abuse";
282 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
284 errMsg = sqlite3_errmsg(db);
285 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
288 throw sg_exception("Sqlite error:" + errMsg, sql);
291 void runSQL(const string& sql)
293 sqlite3_stmt_ptr stmt;
294 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
298 } catch (sg_exception&) {
299 sqlite3_finalize(stmt);
303 sqlite3_finalize(stmt);
306 sqlite3_stmt_ptr prepare(const string& sql)
308 sqlite3_stmt_ptr stmt;
309 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
310 prepared.push_back(stmt);
314 void finalize(sqlite3_stmt_ptr s)
316 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
317 if (it == prepared.end()) {
318 throw sg_exception("Finalising statement that was not prepared");
325 void reset(sqlite3_stmt_ptr stmt)
328 if (sqlite3_reset(stmt) != SQLITE_OK) {
329 string errMsg = sqlite3_errmsg(db);
330 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
331 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
335 bool execSelect(sqlite3_stmt_ptr stmt)
337 return stepSelect(stmt);
340 bool stepSelect(sqlite3_stmt_ptr stmt)
344 while (retries < MAX_RETRIES) {
345 result = sqlite3_step(stmt);
346 if (result == SQLITE_ROW) {
347 return true; // at least one result row
350 if (result == SQLITE_DONE) {
351 return false; // no result rows
354 if (result != SQLITE_BUSY) {
358 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
359 SGTimeStamp::sleepForMSec(++retries * 10);
360 } // of retry loop for DB locked
362 if (retries >= MAX_RETRIES) {
363 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
368 if (result == SQLITE_MISUSE) {
369 errMsg = "Sqlite API abuse";
370 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
372 errMsg = sqlite3_errmsg(db);
373 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
374 << ") while running:\n\t" << sqlite3_sql(stmt));
377 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
380 void execSelect1(sqlite3_stmt_ptr stmt)
382 if (!execSelect(stmt)) {
383 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
384 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
388 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
391 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
396 void execUpdate(sqlite3_stmt_ptr stmt)
404 runSQL("CREATE TABLE properties ("
409 runSQL("CREATE TABLE stat_cache ("
410 "path VARCHAR unique,"
414 runSQL("CREATE TABLE positioned ("
416 "ident VARCHAR collate nocase,"
417 "name VARCHAR collate nocase,"
428 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
429 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
430 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
431 // allow efficient querying of 'all ATIS at this airport' or
432 // 'all towers at this airport'
433 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
435 runSQL("CREATE TABLE airport ("
440 runSQL("CREATE TABLE comm ("
446 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
448 runSQL("CREATE TABLE runway ("
453 "displaced_threshold FLOAT,"
460 runSQL("CREATE TABLE navaid ("
469 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
471 runSQL("CREATE TABLE octree (children INT)");
473 runSQL("CREATE TABLE airway ("
474 "ident VARCHAR collate nocase,"
475 "network INT" // high-level or low-level
478 runSQL("CREATE INDEX airway_ident ON airway(ident)");
480 runSQL("CREATE TABLE airway_edge ("
487 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
489 runSQL("CREATE TABLE taxi_node ("
495 runSQL("CREATE TABLE parking ("
503 runSQL("CREATE TABLE groundnet_edge ("
509 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
510 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
513 void prepareQueries()
515 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
517 beginTransactionStmt = prepare("BEGIN");
518 commitTransactionStmt = prepare("COMMIT");
519 rollbackTransactionStmt = prepare("ROLLBACK");
522 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
523 #define AND_TYPED "AND type>=?2 AND type <=?3"
524 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
525 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
526 "(path, stamp) VALUES (?,?)");
528 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
529 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
530 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
531 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
532 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
533 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
535 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
538 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
539 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
540 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
541 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
543 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
544 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
545 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
547 insertPositionedQuery = prepare("INSERT INTO positioned "
548 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
549 "cart_x, cart_y, cart_z)"
550 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
552 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
553 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
554 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
555 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
556 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
557 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
559 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
560 " VALUES (?, ?, ?)");
561 insertRunway = prepare("INSERT INTO runway "
562 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
563 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
564 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
567 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
568 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
570 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
571 "positioned.rowid=comm.rowid AND freq_khz=?1 "
572 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
574 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
575 "positioned.rowid=navaid.rowid "
576 "AND navaid.freq=?1 " AND_TYPED
577 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
579 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
580 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
582 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
583 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
585 // for an octree branch, return the child octree nodes which exist,
586 // described as a bit-mask
587 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
589 #ifdef LAZY_OCTREE_UPDATES
590 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
592 // mask the new child value into the existing one
593 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
596 // define a new octree node (with no children)
597 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
599 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
601 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
602 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
603 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
605 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
607 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
608 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
609 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
610 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
612 // three-way join to get the navaid ident and runway ident in a single select.
613 // we're joining positioned to itself by the navaid runway, with the complication
614 // that we need to join the navaids table to get the runway ID.
615 // we also need to filter by type to excluse glideslope (GS) matches
616 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
617 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
618 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
619 "AND (nav.type=?4 OR nav.type=?5)");
621 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
622 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
625 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
626 insertAirway = prepare("INSERT INTO airway (ident, network) "
629 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
630 "VALUES (?1, ?2, ?3, ?4)");
632 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
634 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
636 // parking / taxi-node graph
637 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
638 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
639 "VALUES (?1, ?2, ?3, ?4, ?5)");
640 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
642 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
643 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
644 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
645 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
646 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
648 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
650 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
651 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
652 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
653 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
655 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
656 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
657 "AND (type=?2 OR type=?3)");
658 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
659 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
661 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
662 "positioned.rowid = taxi_node.rowid AND airport=?1 "
663 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
666 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
667 "positioned.rowid = taxi_node.rowid AND airport=?1 "
669 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
671 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
672 "airport=?1 AND type=?4 AND "
673 "radius >= ?2 AND gate_type = ?3 AND "
674 "parking.rowid=positioned.rowid");
675 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
678 void writeIntProperty(const string& key, int value)
680 sqlite_bind_stdstring(clearProperty, 1, key);
681 execUpdate(clearProperty);
683 sqlite_bind_stdstring(writePropertyQuery, 1, key);
684 sqlite3_bind_int(writePropertyQuery, 2, value);
685 execUpdate(writePropertyQuery);
689 FGPositioned* loadById(sqlite_int64 rowId);
691 FGAirport* loadAirport(sqlite_int64 rowId,
692 FGPositioned::Type ty,
693 const string& id, const string& name, const SGGeod& pos)
695 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
696 execSelect1(loadAirportStmt);
697 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
698 reset(loadAirportStmt);
700 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
703 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
704 const string& id, const SGGeod& pos, PositionedID apt)
706 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
707 execSelect1(loadRunwayStmt);
709 double heading = sqlite3_column_double(loadRunwayStmt, 0);
710 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
711 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
712 int surface = sqlite3_column_int(loadRunwayStmt, 3);
714 if (ty == FGPositioned::TAXIWAY) {
715 reset(loadRunwayStmt);
716 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
718 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
719 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
720 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
721 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
722 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
723 displacedThreshold, stopway, surface, false);
725 if (reciprocal > 0) {
726 r->setReciprocalRunway(reciprocal);
733 reset(loadRunwayStmt);
738 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
739 const string& id, const string& name,
741 PositionedID airport)
743 sqlite3_bind_int64(loadCommStation, 1, rowId);
744 execSelect1(loadCommStation);
746 int range = sqlite3_column_int(loadCommStation, 0);
747 int freqKhz = sqlite3_column_int(loadCommStation, 1);
748 reset(loadCommStation);
750 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
751 c->setAirport(airport);
755 FGPositioned* loadNav(sqlite3_int64 rowId,
756 FGPositioned::Type ty, const string& id,
757 const string& name, const SGGeod& pos)
759 sqlite3_bind_int64(loadNavaid, 1, rowId);
760 execSelect1(loadNavaid);
762 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
763 // marker beacons are light-weight
764 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
765 (ty == FGPositioned::MM))
768 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
771 int rangeNm = sqlite3_column_int(loadNavaid, 0),
772 freq = sqlite3_column_int(loadNavaid, 1);
773 double mulituse = sqlite3_column_double(loadNavaid, 2);
774 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
777 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
780 FGPositioned* loadParking(sqlite3_int64 rowId,
781 const string& name, const SGGeod& pos,
782 PositionedID airport)
784 sqlite3_bind_int64(loadParkingPos, 1, rowId);
785 execSelect1(loadParkingPos);
787 double heading = sqlite3_column_double(loadParkingPos, 0);
788 int radius = sqlite3_column_int(loadParkingPos, 1);
789 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
790 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
791 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
792 reset(loadParkingPos);
794 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
797 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
798 PositionedID airport)
800 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
801 execSelect1(loadTaxiNodeStmt);
803 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
804 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
805 reset(loadTaxiNodeStmt);
807 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
810 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
811 const string& name, const SGGeod& pos, PositionedID apt,
814 SGVec3d cartPos(SGVec3d::fromGeod(pos));
816 sqlite3_bind_int(insertPositionedQuery, 1, ty);
817 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
818 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
819 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
820 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
821 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
822 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
825 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
826 assert(intersects(octreeLeaf->bbox(), cartPos));
827 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
829 sqlite3_bind_null(insertPositionedQuery, 8);
832 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
833 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
834 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
836 PositionedID r = execInsert(insertPositionedQuery);
840 FGPositioned::List findAllByString(const string& s, const string& column,
841 FGPositioned::Filter* filter, bool exact)
844 if (!exact) query += "%";
846 // build up SQL query text
847 string matchTerm = exact ? "=?1" : " LIKE ?1";
848 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
850 sql += " " AND_TYPED;
853 // find or prepare a suitable statement frrm the SQL
854 sqlite3_stmt_ptr stmt = findByStringDict[sql];
857 findByStringDict[sql] = stmt;
860 sqlite_bind_stdstring(stmt, 1, query);
862 sqlite3_bind_int(stmt, 2, filter->minType());
863 sqlite3_bind_int(stmt, 3, filter->maxType());
866 FGPositioned::List result;
867 // run the prepared SQL
868 while (stepSelect(stmt))
870 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
871 if (filter && !filter->pass(pos)) {
875 result.push_back(pos);
882 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
884 PositionedIDVec result;
885 while (stepSelect(query)) {
886 result.push_back(sqlite3_column_int64(query, 0));
892 double runwayLengthFt(PositionedID rwy)
894 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
895 execSelect1(runwayLengthFtQuery);
896 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
897 reset(runwayLengthFtQuery);
901 void flushDeferredOctreeUpdates()
903 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
904 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
905 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
906 execUpdate(updateOctreeChildren);
909 deferredOctreeUpdates.clear();
916 /// the actual cache of ID -> instances. This holds an owning reference,
917 /// so once items are in the cache they will never be deleted until
918 /// the cache drops its reference
919 PositionedCache cache;
920 unsigned int cacheHits, cacheMisses;
923 * record the levels of open transaction objects we have
925 unsigned int transactionLevel;
926 bool transactionAborted;
927 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
929 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
930 carrierDatPath, airwayDatPath;
932 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
933 stampFileCache, statCacheCheck,
934 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
936 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
938 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
939 insertCommStation, insertNavaid;
940 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
941 setAirportPos, updateRunwayThreshold, updateILS;
943 sqlite3_stmt_ptr findClosestWithIdent;
944 // octree (spatial index) related queries
945 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
946 getOctreeLeafChildren;
948 sqlite3_stmt_ptr searchAirports;
949 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
950 findNavsByFreqNoPos, findNavaidForRunway;
951 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
952 sqlite3_stmt_ptr findAirportRunway,
955 sqlite3_stmt_ptr runwayLengthFtQuery;
958 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
961 // groundnet (parking, taxi node graph)
962 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
963 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
964 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
965 setParkingPushBack, findNearestRunwayTaxiNode;
967 // since there's many permutations of ident/name queries, we create
968 // them programtically, but cache the exact query by its raw SQL once
970 std::map<string, sqlite3_stmt_ptr> findByStringDict;
972 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
975 std::set<Octree::Branch*> deferredOctreeUpdates;
977 // if we're performing a rebuild, the thread that is doing the work.
979 std::auto_ptr<RebuildThread> rebuilder;
982 //////////////////////////////////////////////////////////////////////
984 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
987 sqlite3_bind_int64(loadPositioned, 1, rowid);
988 execSelect1(loadPositioned);
990 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
991 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
993 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
994 string name = (char*) sqlite3_column_text(loadPositioned, 3);
995 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
996 double lon = sqlite3_column_double(loadPositioned, 5);
997 double lat = sqlite3_column_double(loadPositioned, 6);
998 double elev = sqlite3_column_double(loadPositioned, 7);
999 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1001 reset(loadPositioned);
1004 case FGPositioned::AIRPORT:
1005 case FGPositioned::SEAPORT:
1006 case FGPositioned::HELIPORT:
1007 return loadAirport(rowid, ty, ident, name, pos);
1009 case FGPositioned::TOWER:
1010 return new AirportTower(rowid, aptId, ident, pos);
1012 case FGPositioned::RUNWAY:
1013 case FGPositioned::TAXIWAY:
1014 return loadRunway(rowid, ty, ident, pos, aptId);
1016 case FGPositioned::LOC:
1017 case FGPositioned::VOR:
1018 case FGPositioned::GS:
1019 case FGPositioned::ILS:
1020 case FGPositioned::NDB:
1021 case FGPositioned::OM:
1022 case FGPositioned::MM:
1023 case FGPositioned::IM:
1024 case FGPositioned::DME:
1025 case FGPositioned::TACAN:
1026 case FGPositioned::MOBILE_TACAN:
1029 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
1030 if (apt->validateILSData()) {
1031 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1032 // queried data above is probably invalid, force us to go around again
1033 // (the next time through, validateILSData will return false)
1034 return outer->loadById(rowid);
1038 return loadNav(rowid, ty, ident, name, pos);
1041 case FGPositioned::FIX:
1042 return new FGFix(rowid, ident, pos);
1044 case FGPositioned::WAYPOINT:
1046 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
1050 case FGPositioned::FREQ_GROUND:
1051 case FGPositioned::FREQ_TOWER:
1052 case FGPositioned::FREQ_ATIS:
1053 case FGPositioned::FREQ_AWOS:
1054 case FGPositioned::FREQ_APP_DEP:
1055 case FGPositioned::FREQ_ENROUTE:
1056 case FGPositioned::FREQ_CLEARANCE:
1057 case FGPositioned::FREQ_UNICOM:
1058 return loadComm(rowid, ty, ident, name, pos, aptId);
1060 case FGPositioned::TAXI_NODE:
1061 return loadTaxiNode(rowid, pos, aptId);
1063 case FGPositioned::PARKING:
1064 return loadParking(rowid, ident, pos, aptId);
1072 static NavDataCache* static_instance = NULL;
1074 NavDataCache::NavDataCache()
1076 const int MAX_TRIES = 3;
1077 SGPath homePath(globals->get_fg_home());
1078 homePath.append("navdata.cache");
1080 for (int t=0; t < MAX_TRIES; ++t) {
1082 d.reset(new NavDataCachePrivate(homePath, this));
1084 //d->checkCacheFile();
1085 // reached this point with no exception, success
1087 } catch (sg_exception& e) {
1088 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1089 << " (attempt " << t << ")");
1095 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1096 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1097 Octree::global_spatialOctree =
1098 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1100 d->aptDatPath = SGPath(globals->get_fg_root());
1101 d->aptDatPath.append("Airports/apt.dat.gz");
1103 d->metarDatPath = SGPath(globals->get_fg_root());
1104 d->metarDatPath.append("Airports/metar.dat.gz");
1106 d->navDatPath = SGPath(globals->get_fg_root());
1107 d->navDatPath.append("Navaids/nav.dat.gz");
1109 d->fixDatPath = SGPath(globals->get_fg_root());
1110 d->fixDatPath.append("Navaids/fix.dat.gz");
1112 d->carrierDatPath = SGPath(globals->get_fg_root());
1113 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1115 d->airwayDatPath = SGPath(globals->get_fg_root());
1116 d->airwayDatPath.append("Navaids/awy.dat.gz");
1119 NavDataCache::~NavDataCache()
1121 assert(static_instance == this);
1122 static_instance = NULL;
1123 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1127 NavDataCache* NavDataCache::instance()
1129 if (!static_instance) {
1130 static_instance = new NavDataCache;
1133 return static_instance;
1136 bool NavDataCache::isRebuildRequired()
1138 if (isCachedFileModified(d->aptDatPath) ||
1139 isCachedFileModified(d->metarDatPath) ||
1140 isCachedFileModified(d->navDatPath) ||
1141 isCachedFileModified(d->fixDatPath) ||
1142 isCachedFileModified(d->airwayDatPath))
1144 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1148 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1149 if (readStringProperty("scenery_paths") != sceneryPaths) {
1150 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1154 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1158 bool NavDataCache::rebuild()
1160 if (!d->rebuilder.get()) {
1161 d->rebuilder.reset(new RebuildThread(this));
1162 d->rebuilder->start();
1165 // poll the rebuild thread
1166 bool fin = d->rebuilder->isFinished();
1168 d->rebuilder.reset(); // all done!
1173 void NavDataCache::doRebuild()
1176 Transaction txn(this);
1177 d->runSQL("DELETE FROM positioned");
1178 d->runSQL("DELETE FROM airport");
1179 d->runSQL("DELETE FROM runway");
1180 d->runSQL("DELETE FROM navaid");
1181 d->runSQL("DELETE FROM comm");
1182 d->runSQL("DELETE FROM octree");
1183 d->runSQL("DELETE FROM airway");
1184 d->runSQL("DELETE FROM airway_edge");
1185 d->runSQL("DELETE FROM taxi_node");
1186 d->runSQL("DELETE FROM parking");
1187 d->runSQL("DELETE FROM groundnet_edge");
1188 d->runSQL("DELETE FROM stat_cache");
1190 // initialise the root octree node
1191 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1196 airportDBLoad(d->aptDatPath);
1197 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1199 metarDataLoad(d->metarDatPath);
1200 stampCacheFile(d->aptDatPath);
1201 stampCacheFile(d->metarDatPath);
1204 loadFixes(d->fixDatPath);
1205 stampCacheFile(d->fixDatPath);
1206 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1209 navDBInit(d->navDatPath);
1210 stampCacheFile(d->navDatPath);
1211 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1213 loadCarrierNav(d->carrierDatPath);
1214 stampCacheFile(d->carrierDatPath);
1217 Airway::load(d->airwayDatPath);
1218 stampCacheFile(d->airwayDatPath);
1219 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1221 d->flushDeferredOctreeUpdates();
1223 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1224 writeStringProperty("scenery_paths", sceneryPaths);
1227 } catch (sg_exception& e) {
1228 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1232 int NavDataCache::readIntProperty(const string& key)
1234 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1237 if (d->execSelect(d->readPropertyQuery)) {
1238 result = sqlite3_column_int(d->readPropertyQuery, 0);
1240 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1243 d->reset(d->readPropertyQuery);
1247 double NavDataCache::readDoubleProperty(const string& key)
1249 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1250 double result = 0.0;
1251 if (d->execSelect(d->readPropertyQuery)) {
1252 result = sqlite3_column_double(d->readPropertyQuery, 0);
1254 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1257 d->reset(d->readPropertyQuery);
1261 string NavDataCache::readStringProperty(const string& key)
1263 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1265 if (d->execSelect(d->readPropertyQuery)) {
1266 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1268 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1271 d->reset(d->readPropertyQuery);
1275 void NavDataCache::writeIntProperty(const string& key, int value)
1277 d->writeIntProperty(key, value);
1280 void NavDataCache::writeStringProperty(const string& key, const string& value)
1282 sqlite_bind_stdstring(d->clearProperty, 1, key);
1283 d->execUpdate(d->clearProperty);
1285 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1286 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1287 d->execUpdate(d->writePropertyQuery);
1290 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1292 sqlite_bind_stdstring(d->clearProperty, 1, key);
1293 d->execUpdate(d->clearProperty);
1295 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1296 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1297 d->execUpdate(d->writePropertyQuery);
1300 string_list NavDataCache::readStringListProperty(const string& key)
1302 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1304 while (d->stepSelect(d->readPropertyQuery)) {
1305 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1307 d->reset(d->readPropertyQuery);
1312 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1314 sqlite_bind_stdstring(d->clearProperty, 1, key);
1315 d->execUpdate(d->clearProperty);
1317 BOOST_FOREACH(string value, values) {
1318 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1319 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1320 d->execInsert(d->writePropertyMulti);
1324 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1326 if (!path.exists()) {
1327 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1330 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1331 bool isModified = true;
1333 if (d->execSelect(d->statCacheCheck)) {
1334 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1335 time_t delta = std::labs(modtime - path.modTime());
1338 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1341 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1342 // and then changed file again within x seconds - so it's suspicious...
1343 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1344 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1349 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1352 isModified = (delta != 0);
1354 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1357 d->reset(d->statCacheCheck);
1361 void NavDataCache::stampCacheFile(const SGPath& path)
1363 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1364 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1365 d->execInsert(d->stampFileCache);
1368 void NavDataCache::beginTransaction()
1370 if (d->transactionLevel == 0) {
1371 d->transactionAborted = false;
1372 d->stepSelect(d->beginTransactionStmt);
1373 sqlite3_reset(d->beginTransactionStmt);
1376 ++d->transactionLevel;
1379 void NavDataCache::commitTransaction()
1381 assert(d->transactionLevel > 0);
1382 if (--d->transactionLevel == 0) {
1383 // if a nested transaction aborted, we might end up here, but must
1384 // still abort the entire transaction. That's bad, but safer than
1386 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1390 while (retries < MAX_RETRIES) {
1391 result = sqlite3_step(q);
1392 if (result == SQLITE_DONE) {
1396 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1397 // what's going on here: autocommit in inactive inside BEGIN, so if
1398 // it's active, the DB was rolled-back
1399 if (sqlite3_get_autocommit(d->db)) {
1400 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1401 d->transactionAborted = true;
1405 if (result != SQLITE_BUSY) {
1409 SGTimeStamp::sleepForMSec(++retries * 10);
1410 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1411 } // of retry loop for DB busy
1414 if (result != SQLITE_DONE) {
1415 errMsg = sqlite3_errmsg(d->db);
1416 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1417 << " while running:\n\t" << sqlite3_sql(q));
1424 void NavDataCache::abortTransaction()
1426 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1428 assert(d->transactionLevel > 0);
1429 if (--d->transactionLevel == 0) {
1430 d->stepSelect(d->rollbackTransactionStmt);
1431 sqlite3_reset(d->rollbackTransactionStmt);
1434 d->transactionAborted = true;
1437 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1443 PositionedCache::iterator it = d->cache.find(rowid);
1444 if (it != d->cache.end()) {
1446 return it->second; // cache it
1449 FGPositioned* pos = d->loadById(rowid);
1450 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1455 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1458 // airports have their pos computed based on the avergae runway centres
1459 // so the pos isn't available immediately. Pass a dummy pos and avoid
1460 // doing spatial indexing until later
1461 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1463 false /* spatial index */);
1465 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1466 d->execInsert(d->insertAirport);
1471 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1473 if (d->cache.find(item) != d->cache.end()) {
1474 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1475 d->cache[item]->modifyPosition(pos);
1478 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1480 sqlite3_bind_int(d->setAirportPos, 1, item);
1481 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1482 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1483 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1485 // bug 905; the octree leaf may change here, but the leaf may already be
1486 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1487 // we may be called here as a result of loading one of those leaf's children.
1488 // instead of dealing with all those possibilites, such as modifying
1489 // the in-memory leaf's STL child container, we simply leave the runtime
1490 // structures alone. This is fine providing items do no move very far, since
1491 // all the spatial searches ultimately use the items' real cartesian position,
1492 // which was updated above.
1493 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1494 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1496 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1497 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1498 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1501 d->execUpdate(d->setAirportPos);
1504 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1506 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1507 pos, airportId, true /* spatial index */);
1511 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1512 const SGGeod& pos, PositionedID apt,
1513 double heading, double length, double width, double displacedThreshold,
1514 double stopway, int surfaceCode)
1516 // only runways are spatially indexed; don't bother indexing taxiways
1518 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1520 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1522 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1523 sqlite3_bind_double(d->insertRunway, 2, heading);
1524 sqlite3_bind_double(d->insertRunway, 3, length);
1525 sqlite3_bind_double(d->insertRunway, 4, width);
1526 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1527 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1528 sqlite3_bind_double(d->insertRunway, 7, stopway);
1530 return d->execInsert(d->insertRunway);
1533 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1535 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1536 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1537 d->execUpdate(d->setRunwayReciprocal);
1539 // and the opposite direction too!
1540 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1541 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1542 d->execUpdate(d->setRunwayReciprocal);
1545 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1547 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1548 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1549 d->execUpdate(d->setRunwayILS);
1552 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1553 double aHeading, double aDisplacedThreshold,
1556 // update the runway information
1557 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1558 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1559 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1560 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1561 d->execUpdate(d->updateRunwayThreshold);
1563 // compute the new runway center, based on the threshold lat/lon and length,
1564 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1567 SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER, newCenter, dummy);
1569 // now update the positional data
1570 updatePosition(runwayID, newCenter);
1574 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1575 const string& name, const SGGeod& pos,
1576 int freq, int range, double multiuse,
1577 PositionedID apt, PositionedID runway)
1579 bool spatialIndex = true;
1580 if (ty == FGPositioned::MOBILE_TACAN) {
1581 spatialIndex = false;
1584 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1586 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1587 sqlite3_bind_int(d->insertNavaid, 2, freq);
1588 sqlite3_bind_int(d->insertNavaid, 3, range);
1589 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1590 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1591 return d->execInsert(d->insertNavaid);
1594 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1596 sqlite3_bind_int64(d->updateILS, 1, ils);
1597 sqlite3_bind_double(d->updateILS, 2, aHdg);
1598 d->execUpdate(d->updateILS);
1599 updatePosition(ils, newPos);
1602 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1603 const string& name, const SGGeod& pos, int freq, int range,
1606 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1607 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1608 sqlite3_bind_int(d->insertCommStation, 2, freq);
1609 sqlite3_bind_int(d->insertCommStation, 3, range);
1610 return d->execInsert(d->insertCommStation);
1613 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1615 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1618 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1620 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1621 true /* spatial index */);
1624 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1626 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1627 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1628 d->execUpdate(d->setAirportMetar);
1631 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1632 FGPositioned::Filter* filter, bool exact)
1634 return d->findAllByString(s, "ident", filter, exact);
1637 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1638 FGPositioned::Filter* filter, bool exact)
1640 return d->findAllByString(s, "name", filter, exact);
1643 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1644 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1646 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1648 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1649 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1650 } else { // full type range
1651 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1652 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1655 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1656 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1657 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1658 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1660 FGPositionedRef result;
1662 while (d->stepSelect(d->findClosestWithIdent)) {
1663 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1664 if (aFilter && !aFilter->pass(pos)) {
1672 d->reset(d->findClosestWithIdent);
1677 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1679 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1680 d->execSelect1(d->getOctreeChildren);
1681 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1682 d->reset(d->getOctreeChildren);
1686 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1688 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1689 d->execInsert(d->insertOctree);
1691 #ifdef LAZY_OCTREE_UPDATES
1692 d->deferredOctreeUpdates.insert(pr);
1694 // lowest three bits of node ID are 0..7 index of the child in the parent
1695 int childIndex = nd->guid() & 0x07;
1697 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1698 // mask has bit N set where child N exists
1699 int childMask = 1 << childIndex;
1700 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1701 d->execUpdate(d->updateOctreeChildren);
1706 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1708 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1710 TypedPositionedVec r;
1711 while (d->stepSelect(d->getOctreeLeafChildren)) {
1712 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1713 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1714 r.push_back(std::make_pair(ty,
1715 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1718 d->reset(d->getOctreeLeafChildren);
1724 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1725 * implement the AirportList dialog. It's unfortunate that it needs to reside
1726 * here, but for now it's least ugly solution.
1728 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1730 string s = "%" + aFilter + "%";
1731 sqlite_bind_stdstring(d->searchAirports, 1, s);
1733 unsigned int numMatches = 0, numAllocated = 16;
1734 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1736 while (d->stepSelect(d->searchAirports)) {
1737 if ((numMatches + 1) >= numAllocated) {
1738 numAllocated <<= 1; // double in size!
1739 // reallocate results array
1740 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1741 memcpy(nresult, result, sizeof(char*) * numMatches);
1746 // nasty code to avoid excessive string copying and allocations.
1747 // We format results as follows (note whitespace!):
1748 // ' name-of-airport-chars (ident)'
1749 // so the total length is:
1750 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1751 // which gives a grand total of 7 + name-length + icao-length.
1752 // note the ident can be three letters (non-ICAO local strip), four
1753 // (default ICAO) or more (extended format ICAO)
1754 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1755 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1756 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1759 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1765 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1770 result[numMatches++] = entry;
1773 result[numMatches] = NULL; // end of list marker
1774 d->reset(d->searchAirports);
1779 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1781 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1783 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1784 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1785 } else { // full type range
1786 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1787 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1790 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1791 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1792 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1793 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1794 FGPositionedRef result;
1796 while (d->execSelect(d->findCommByFreq)) {
1797 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1798 if (aFilter && !aFilter->pass(p)) {
1806 d->reset(d->findCommByFreq);
1811 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1813 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1815 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1816 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1817 } else { // full type range
1818 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1819 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1822 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1823 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1824 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1825 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1827 return d->selectIds(d->findNavsByFreq);
1831 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1833 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1835 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1836 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1837 } else { // full type range
1838 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1839 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1842 return d->selectIds(d->findNavsByFreqNoPos);
1846 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1847 FGPositioned::Type maxTy)
1849 if (maxTy == FGPositioned::INVALID) {
1850 maxTy = ty; // single-type range
1853 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1854 sqlite3_bind_int(d->getAirportItems, 2, ty);
1855 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1857 return d->selectIds(d->getAirportItems);
1861 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1862 const std::string& ident)
1864 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1865 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1866 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1867 PositionedID result = 0;
1869 if (d->execSelect(d->getAirportItemByIdent)) {
1870 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1873 d->reset(d->getAirportItemByIdent);
1878 NavDataCache::findAirportRunway(const std::string& aName)
1880 if (aName.empty()) {
1881 return AirportRunwayPair();
1884 string_list parts = simgear::strutils::split(aName);
1885 if (parts.size() < 2) {
1886 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1887 return AirportRunwayPair();
1890 AirportRunwayPair result;
1891 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1892 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1894 if (d->execSelect(d->findAirportRunway)) {
1895 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1896 sqlite3_column_int64(d->findAirportRunway, 1));
1899 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1902 d->reset(d->findAirportRunway);
1907 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1909 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1910 sqlite3_bind_int64(d->findILS, 2, airport);
1911 sqlite_bind_stdstring(d->findILS, 3, runway);
1912 PositionedID result = 0;
1913 if (d->execSelect(d->findILS)) {
1914 result = sqlite3_column_int64(d->findILS, 0);
1917 d->reset(d->findILS);
1921 int NavDataCache::findAirway(int network, const string& aName)
1923 sqlite3_bind_int(d->findAirway, 1, network);
1924 sqlite_bind_stdstring(d->findAirway, 2, aName);
1927 if (d->execSelect(d->findAirway)) {
1929 airway = sqlite3_column_int(d->findAirway, 0);
1931 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1932 sqlite3_bind_int(d->insertAirway, 2, network);
1933 airway = d->execInsert(d->insertAirway);
1936 d->reset(d->findAirway);
1940 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1942 // assume all edges are bidirectional for the moment
1943 for (int i=0; i<2; ++i) {
1944 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1945 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1946 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1947 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1948 d->execInsert(d->insertAirwayEdge);
1950 std::swap(from, to);
1954 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1956 sqlite3_bind_int(d->isPosInAirway, 1, network);
1957 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1958 bool ok = d->execSelect(d->isPosInAirway);
1959 d->reset(d->isPosInAirway);
1964 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1966 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1967 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1969 AirwayEdgeVec result;
1970 while (d->stepSelect(d->airwayEdgesFrom)) {
1971 result.push_back(AirwayEdge(
1972 sqlite3_column_int(d->airwayEdgesFrom, 0),
1973 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1977 d->reset(d->airwayEdgesFrom);
1981 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
1983 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
1984 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
1986 PositionedID result = 0;
1987 if (d->execSelect(d->findNavaidForRunway)) {
1988 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
1991 d->reset(d->findNavaidForRunway);
1996 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
1997 PositionedID aAirport,
1998 double aHeading, int aRadius, const std::string& aAircraftType,
1999 const std::string& aAirlines)
2001 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2003 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2004 // the appropriate pushback flag.
2005 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2006 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2007 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2008 d->execInsert(d->insertTaxiNode);
2010 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2011 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2012 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2013 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2014 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2015 return d->execInsert(d->insertParkingPos);
2018 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2020 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2021 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2022 d->execUpdate(d->setParkingPushBack);
2026 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2028 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2029 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2030 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2031 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2032 return d->execInsert(d->insertTaxiNode);
2035 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2037 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2038 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2039 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2040 d->execInsert(d->insertTaxiEdge);
2043 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2045 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2046 sqlite3_bind_int64(q, 1, aAirport);
2047 return d->selectIds(q);
2050 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2052 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2053 d->execUpdate(d->markTaxiNodeAsPushback);
2056 static double headingDifferenceDeg(double crs1, double crs2)
2058 double diff = crs2 - crs1;
2059 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2063 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2064 bool onRunway, FGRunway* aRunway)
2066 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2067 sqlite3_bind_int64(q, 1, airport);
2069 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2070 sqlite3_bind_double(q, 2, cartPos.x());
2071 sqlite3_bind_double(q, 3, cartPos.y());
2072 sqlite3_bind_double(q, 4, cartPos.z());
2074 PositionedID result = 0;
2075 while (d->execSelect(q)) {
2076 PositionedID id = sqlite3_column_int64(q, 0);
2082 // ensure found node lies on the runway
2083 FGPositionedRef node = loadById(id);
2084 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2085 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2095 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2097 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2098 sqlite3_bind_int64(q, 1, pos);
2099 return d->selectIds(q);
2102 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2105 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2106 sqlite3_bind_int(d->findAirportParking, 2, radius);
2107 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2109 return d->selectIds(d->findAirportParking);
2112 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2114 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2115 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2116 sqlite3_bind_int64(q, 2, aAirport);
2119 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2120 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2121 sqlite3_bind_int64(q, 2, aAirport);
2124 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2125 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2126 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2127 sqlite3_bind_int64(q, 3, aAirport);
2130 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2131 sqlite3_bind_int64(q, 1, aAirport);
2135 /////////////////////////////////////////////////////////////////////////////////////////
2136 // Transaction RAII object
2138 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2143 _instance->beginTransaction();
2146 NavDataCache::Transaction::~Transaction()
2149 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2150 _instance->abortTransaction();
2154 void NavDataCache::Transaction::commit()
2156 assert(!_committed);
2158 _instance->commitTransaction();
2161 } // of namespace flightgear