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/airport.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>
64 #include <Airports/parking.hxx>
65 #include <Airports/gnnode.hxx>
69 #define SG_NAVCACHE SG_NAVAID
70 //#define LAZY_OCTREE_UPDATES 1
74 const int MAX_RETRIES = 10;
75 const int SCHEMA_VERSION = 8;
76 const int CACHE_SIZE_KBYTES= 16000;
78 // bind a std::string to a sqlite statement. The std::string must live the
79 // entire duration of the statement execution - do not pass a temporary
80 // std::string, or the compiler may delete it, freeing the C-string storage,
81 // and causing subtle memory corruption bugs!
82 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
84 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
87 // variant of the above, which does not care about the lifetime of the
89 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
91 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
94 typedef sqlite3_stmt* sqlite3_stmt_ptr;
96 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
102 SGVec3d posA(sqlite3_value_double(argv[0]),
103 sqlite3_value_double(argv[1]),
104 sqlite3_value_double(argv[2]));
106 SGVec3d posB(sqlite3_value_double(argv[3]),
107 sqlite3_value_double(argv[4]),
108 sqlite3_value_double(argv[5]));
109 sqlite3_result_double(ctx, distSqr(posA, posB));
113 static string cleanRunwayNo(const string& aRwyNo)
115 if (aRwyNo[0] == 'x') {
116 return string(); // no ident for taxiways
119 string result(aRwyNo);
120 // canonicalise runway ident
121 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
122 result = "0" + aRwyNo;
125 // trim off trailing garbage
126 if (result.size() > 2) {
127 char suffix = toupper(result[2]);
129 result = result.substr(0, 2);
136 } // anonymous namespace
142 * Thread encapsulating a cache rebuild. This is not used to parallelise
143 * the rebuild - we must still wait until completion before doing other
144 * startup, since many things rely on a complete cache. The thread is used
145 * so we don't block the main event loop for an unacceptable duration,
146 * which causes 'not responding' / spinning beachballs on Windows & Mac
148 class RebuildThread : public SGThread
151 RebuildThread(NavDataCache* cache) :
158 bool isFinished() const
160 SGGuard<SGMutex> g(_lock);
169 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
171 SGGuard<SGMutex> g(_lock);
175 NavDataCache* _cache;
176 mutable SGMutex _lock;
180 ////////////////////////////////////////////////////////////////////////////
182 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
184 class AirportTower : public FGPositioned
187 AirportTower(PositionedID& guid, PositionedID airport,
188 const string& ident, const SGGeod& pos) :
189 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
194 class NavDataCache::NavDataCachePrivate
197 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
204 transactionAborted(false)
208 ~NavDataCachePrivate()
215 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
217 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
218 // for the logic here. Sigh.
219 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
220 sqlite3_open_v2(pathUtf8.c_str(), &db,
221 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
224 sqlite3_stmt_ptr checkTables =
225 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
227 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
228 f_distanceCartSqrFunction, NULL, NULL);
230 execSelect(checkTables);
231 bool didCreate = false;
232 if (sqlite3_column_int(checkTables, 0) == 0) {
233 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
238 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
239 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
240 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
243 writeIntProperty("schema-version", SCHEMA_VERSION);
245 int schemaVersion = outer->readIntProperty("schema-version");
246 if (schemaVersion != SCHEMA_VERSION) {
247 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
248 throw sg_exception("Navcache schema has changed");
252 // see http://www.sqlite.org/pragma.html#pragma_cache_size
253 // for the details, small cache would cause thrashing.
254 std::ostringstream q;
255 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
262 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
263 sqlite3_finalize(stmt);
269 void checkCacheFile()
271 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
275 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
276 if (!execSelect(stmt)) {
277 throw sg_exception("DB integrity check failed to run");
280 string v = (char*) sqlite3_column_text(stmt, 0);
282 throw sg_exception("DB integrity check returned:" + v);
285 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
289 void callSqlite(int result, const string& sql)
291 if (result == SQLITE_OK)
295 if (result == SQLITE_MISUSE) {
296 errMsg = "Sqlite API abuse";
297 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
299 errMsg = sqlite3_errmsg(db);
300 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
303 throw sg_exception("Sqlite error:" + errMsg, sql);
306 void runSQL(const string& sql)
308 sqlite3_stmt_ptr stmt;
309 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
313 } catch (sg_exception&) {
314 sqlite3_finalize(stmt);
318 sqlite3_finalize(stmt);
321 sqlite3_stmt_ptr prepare(const string& sql)
323 sqlite3_stmt_ptr stmt;
324 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
325 prepared.push_back(stmt);
329 void finalize(sqlite3_stmt_ptr s)
331 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
332 if (it == prepared.end()) {
333 throw sg_exception("Finalising statement that was not prepared");
340 void reset(sqlite3_stmt_ptr stmt)
343 if (sqlite3_reset(stmt) != SQLITE_OK) {
344 string errMsg = sqlite3_errmsg(db);
345 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
346 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
350 bool execSelect(sqlite3_stmt_ptr stmt)
352 return stepSelect(stmt);
355 bool stepSelect(sqlite3_stmt_ptr stmt)
359 while (retries < MAX_RETRIES) {
360 result = sqlite3_step(stmt);
361 if (result == SQLITE_ROW) {
362 return true; // at least one result row
365 if (result == SQLITE_DONE) {
366 return false; // no result rows
369 if (result != SQLITE_BUSY) {
373 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
374 SGTimeStamp::sleepForMSec(++retries * 10);
375 } // of retry loop for DB locked
377 if (retries >= MAX_RETRIES) {
378 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
383 if (result == SQLITE_MISUSE) {
384 errMsg = "Sqlite API abuse";
385 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
387 errMsg = sqlite3_errmsg(db);
388 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
389 << ") while running:\n\t" << sqlite3_sql(stmt));
392 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
395 void execSelect1(sqlite3_stmt_ptr stmt)
397 if (!execSelect(stmt)) {
398 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
399 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
403 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
406 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
411 void execUpdate(sqlite3_stmt_ptr stmt)
419 runSQL("CREATE TABLE properties ("
424 runSQL("CREATE TABLE stat_cache ("
425 "path VARCHAR unique,"
429 runSQL("CREATE TABLE positioned ("
431 "ident VARCHAR collate nocase,"
432 "name VARCHAR collate nocase,"
443 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
444 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
445 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
446 // allow efficient querying of 'all ATIS at this airport' or
447 // 'all towers at this airport'
448 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
450 runSQL("CREATE TABLE airport ("
455 runSQL("CREATE TABLE comm ("
461 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
463 runSQL("CREATE TABLE runway ("
468 "displaced_threshold FLOAT,"
475 runSQL("CREATE TABLE navaid ("
484 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
486 runSQL("CREATE TABLE octree (children INT)");
488 runSQL("CREATE TABLE airway ("
489 "ident VARCHAR collate nocase,"
490 "network INT" // high-level or low-level
493 runSQL("CREATE INDEX airway_ident ON airway(ident)");
495 runSQL("CREATE TABLE airway_edge ("
502 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
504 runSQL("CREATE TABLE taxi_node ("
510 runSQL("CREATE TABLE parking ("
518 runSQL("CREATE TABLE groundnet_edge ("
524 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
525 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
528 void prepareQueries()
530 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
532 beginTransactionStmt = prepare("BEGIN");
533 commitTransactionStmt = prepare("COMMIT");
534 rollbackTransactionStmt = prepare("ROLLBACK");
537 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
538 #define AND_TYPED "AND type>=?2 AND type <=?3"
539 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
540 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
541 "(path, stamp) VALUES (?,?)");
543 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
544 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
545 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
546 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
547 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
548 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
550 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
553 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
554 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
555 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
556 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
558 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
559 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
560 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
561 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
563 insertPositionedQuery = prepare("INSERT INTO positioned "
564 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
565 "cart_x, cart_y, cart_z)"
566 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
568 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
569 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
570 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
571 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
572 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
573 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
575 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
576 " VALUES (?, ?, ?)");
577 insertRunway = prepare("INSERT INTO runway "
578 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
579 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
580 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
582 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
585 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
586 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
588 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
589 "positioned.rowid=comm.rowid AND freq_khz=?1 "
590 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
592 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
593 "positioned.rowid=navaid.rowid "
594 "AND navaid.freq=?1 " AND_TYPED
595 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
597 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
598 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
600 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
601 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
603 // for an octree branch, return the child octree nodes which exist,
604 // described as a bit-mask
605 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
607 #ifdef LAZY_OCTREE_UPDATES
608 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
610 // mask the new child value into the existing one
611 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
614 // define a new octree node (with no children)
615 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
617 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
619 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
620 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
621 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
623 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
625 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
626 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
627 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
628 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
630 // three-way join to get the navaid ident and runway ident in a single select.
631 // we're joining positioned to itself by the navaid runway, with the complication
632 // that we need to join the navaids table to get the runway ID.
633 // we also need to filter by type to excluse glideslope (GS) matches
634 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
635 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
636 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
637 "AND (nav.type=?4 OR nav.type=?5)");
639 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
640 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
643 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
644 insertAirway = prepare("INSERT INTO airway (ident, network) "
647 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
648 "VALUES (?1, ?2, ?3, ?4)");
650 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
652 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
654 // parking / taxi-node graph
655 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
656 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
657 "VALUES (?1, ?2, ?3, ?4, ?5)");
658 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
660 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
661 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
662 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
663 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
664 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
666 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
668 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
669 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
670 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
671 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
673 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
674 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
675 "AND (type=?2 OR type=?3)");
676 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
677 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
679 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
680 "positioned.rowid = taxi_node.rowid AND airport=?1 "
681 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
684 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
685 "positioned.rowid = taxi_node.rowid AND airport=?1 "
687 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
689 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
690 "airport=?1 AND type=?4 AND "
691 "radius >= ?2 AND gate_type = ?3 AND "
692 "parking.rowid=positioned.rowid");
693 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
696 void writeIntProperty(const string& key, int value)
698 sqlite_bind_stdstring(clearProperty, 1, key);
699 execUpdate(clearProperty);
701 sqlite_bind_stdstring(writePropertyQuery, 1, key);
702 sqlite3_bind_int(writePropertyQuery, 2, value);
703 execUpdate(writePropertyQuery);
707 FGPositioned* loadById(sqlite_int64 rowId);
709 FGAirport* loadAirport(sqlite_int64 rowId,
710 FGPositioned::Type ty,
711 const string& id, const string& name, const SGGeod& pos)
713 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
714 execSelect1(loadAirportStmt);
715 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
716 reset(loadAirportStmt);
718 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
721 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
722 const string& id, const SGGeod& pos, PositionedID apt)
724 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
725 execSelect1(loadRunwayStmt);
727 double heading = sqlite3_column_double(loadRunwayStmt, 0);
728 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
729 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
730 int surface = sqlite3_column_int(loadRunwayStmt, 3);
732 if (ty == FGPositioned::TAXIWAY) {
733 reset(loadRunwayStmt);
734 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
735 } else if (ty == FGPositioned::HELIPAD) {
736 reset(loadRunwayStmt);
737 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
739 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
740 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
741 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
742 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
743 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
744 displacedThreshold, stopway, surface);
746 if (reciprocal > 0) {
747 r->setReciprocalRunway(reciprocal);
754 reset(loadRunwayStmt);
759 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
760 const string& id, const string& name,
762 PositionedID airport)
764 sqlite3_bind_int64(loadCommStation, 1, rowId);
765 execSelect1(loadCommStation);
767 int range = sqlite3_column_int(loadCommStation, 0);
768 int freqKhz = sqlite3_column_int(loadCommStation, 1);
769 reset(loadCommStation);
771 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
772 c->setAirport(airport);
776 FGPositioned* loadNav(sqlite3_int64 rowId,
777 FGPositioned::Type ty, const string& id,
778 const string& name, const SGGeod& pos)
780 sqlite3_bind_int64(loadNavaid, 1, rowId);
781 execSelect1(loadNavaid);
783 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
784 // marker beacons are light-weight
785 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
786 (ty == FGPositioned::MM))
789 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
792 int rangeNm = sqlite3_column_int(loadNavaid, 0),
793 freq = sqlite3_column_int(loadNavaid, 1);
794 double mulituse = sqlite3_column_double(loadNavaid, 2);
795 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
798 FGNavRecord* n = new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
800 n->setColocatedDME(colocated);
806 FGPositioned* loadParking(sqlite3_int64 rowId,
807 const string& name, const SGGeod& pos,
808 PositionedID airport)
810 sqlite3_bind_int64(loadParkingPos, 1, rowId);
811 execSelect1(loadParkingPos);
813 double heading = sqlite3_column_double(loadParkingPos, 0);
814 int radius = sqlite3_column_int(loadParkingPos, 1);
815 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
816 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
817 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
818 reset(loadParkingPos);
820 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
823 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
824 PositionedID airport)
826 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
827 execSelect1(loadTaxiNodeStmt);
829 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
830 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
831 reset(loadTaxiNodeStmt);
833 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
836 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
837 const string& name, const SGGeod& pos, PositionedID apt,
840 SGVec3d cartPos(SGVec3d::fromGeod(pos));
842 sqlite3_bind_int(insertPositionedQuery, 1, ty);
843 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
844 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
845 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
846 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
847 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
848 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
851 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
852 assert(intersects(octreeLeaf->bbox(), cartPos));
853 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
855 sqlite3_bind_null(insertPositionedQuery, 8);
858 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
859 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
860 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
862 PositionedID r = execInsert(insertPositionedQuery);
866 FGPositionedList findAllByString(const string& s, const string& column,
867 FGPositioned::Filter* filter, bool exact)
870 if (!exact) query += "%";
872 // build up SQL query text
873 string matchTerm = exact ? "=?1" : " LIKE ?1";
874 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
876 sql += " " AND_TYPED;
879 // find or prepare a suitable statement frrm the SQL
880 sqlite3_stmt_ptr stmt = findByStringDict[sql];
883 findByStringDict[sql] = stmt;
886 sqlite_bind_stdstring(stmt, 1, query);
888 sqlite3_bind_int(stmt, 2, filter->minType());
889 sqlite3_bind_int(stmt, 3, filter->maxType());
892 FGPositionedList result;
893 // run the prepared SQL
894 while (stepSelect(stmt))
896 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
897 if (filter && !filter->pass(pos)) {
901 result.push_back(pos);
908 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
910 PositionedIDVec result;
911 while (stepSelect(query)) {
912 result.push_back(sqlite3_column_int64(query, 0));
918 double runwayLengthFt(PositionedID rwy)
920 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
921 execSelect1(runwayLengthFtQuery);
922 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
923 reset(runwayLengthFtQuery);
927 void flushDeferredOctreeUpdates()
929 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
930 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
931 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
932 execUpdate(updateOctreeChildren);
935 deferredOctreeUpdates.clear();
938 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
940 sqlite3_bind_int(removePOIQuery, 1, ty);
941 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
942 execUpdate(removePOIQuery);
943 reset(removePOIQuery);
950 /// the actual cache of ID -> instances. This holds an owning reference,
951 /// so once items are in the cache they will never be deleted until
952 /// the cache drops its reference
953 PositionedCache cache;
954 unsigned int cacheHits, cacheMisses;
957 * record the levels of open transaction objects we have
959 unsigned int transactionLevel;
960 bool transactionAborted;
961 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
963 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
964 carrierDatPath, airwayDatPath;
966 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
967 stampFileCache, statCacheCheck,
968 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
970 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
972 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
973 insertCommStation, insertNavaid;
974 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
975 setAirportPos, updateRunwayThreshold, updateILS;
976 sqlite3_stmt_ptr removePOIQuery;
978 sqlite3_stmt_ptr findClosestWithIdent;
979 // octree (spatial index) related queries
980 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
981 getOctreeLeafChildren;
983 sqlite3_stmt_ptr searchAirports;
984 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
985 findNavsByFreqNoPos, findNavaidForRunway;
986 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
987 sqlite3_stmt_ptr findAirportRunway,
990 sqlite3_stmt_ptr runwayLengthFtQuery;
993 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
996 // groundnet (parking, taxi node graph)
997 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
998 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
999 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
1000 setParkingPushBack, findNearestRunwayTaxiNode;
1002 // since there's many permutations of ident/name queries, we create
1003 // them programtically, but cache the exact query by its raw SQL once
1005 std::map<string, sqlite3_stmt_ptr> findByStringDict;
1007 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
1010 std::set<Octree::Branch*> deferredOctreeUpdates;
1012 // if we're performing a rebuild, the thread that is doing the work.
1014 std::auto_ptr<RebuildThread> rebuilder;
1017 //////////////////////////////////////////////////////////////////////
1019 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
1022 sqlite3_bind_int64(loadPositioned, 1, rowid);
1023 execSelect1(loadPositioned);
1025 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
1026 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
1028 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
1029 string name = (char*) sqlite3_column_text(loadPositioned, 3);
1030 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
1031 double lon = sqlite3_column_double(loadPositioned, 5);
1032 double lat = sqlite3_column_double(loadPositioned, 6);
1033 double elev = sqlite3_column_double(loadPositioned, 7);
1034 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1036 reset(loadPositioned);
1039 case FGPositioned::AIRPORT:
1040 case FGPositioned::SEAPORT:
1041 case FGPositioned::HELIPORT:
1042 return loadAirport(rowid, ty, ident, name, pos);
1044 case FGPositioned::TOWER:
1045 return new AirportTower(rowid, aptId, ident, pos);
1047 case FGPositioned::RUNWAY:
1048 case FGPositioned::HELIPAD:
1049 case FGPositioned::TAXIWAY:
1050 return loadRunway(rowid, ty, ident, pos, aptId);
1052 case FGPositioned::LOC:
1053 case FGPositioned::VOR:
1054 case FGPositioned::GS:
1055 case FGPositioned::ILS:
1056 case FGPositioned::NDB:
1057 case FGPositioned::OM:
1058 case FGPositioned::MM:
1059 case FGPositioned::IM:
1060 case FGPositioned::DME:
1061 case FGPositioned::TACAN:
1062 case FGPositioned::MOBILE_TACAN:
1065 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1066 if (apt->validateILSData()) {
1067 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1068 // queried data above is probably invalid, force us to go around again
1069 // (the next time through, validateILSData will return false)
1070 return outer->loadById(rowid);
1074 return loadNav(rowid, ty, ident, name, pos);
1077 case FGPositioned::FIX:
1078 return new FGFix(rowid, ident, pos);
1080 case FGPositioned::WAYPOINT:
1081 case FGPositioned::COUNTRY:
1082 case FGPositioned::CITY:
1083 case FGPositioned::TOWN:
1084 case FGPositioned::VILLAGE:
1086 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1090 case FGPositioned::FREQ_GROUND:
1091 case FGPositioned::FREQ_TOWER:
1092 case FGPositioned::FREQ_ATIS:
1093 case FGPositioned::FREQ_AWOS:
1094 case FGPositioned::FREQ_APP_DEP:
1095 case FGPositioned::FREQ_ENROUTE:
1096 case FGPositioned::FREQ_CLEARANCE:
1097 case FGPositioned::FREQ_UNICOM:
1098 return loadComm(rowid, ty, ident, name, pos, aptId);
1100 case FGPositioned::TAXI_NODE:
1101 return loadTaxiNode(rowid, pos, aptId);
1103 case FGPositioned::PARKING:
1104 return loadParking(rowid, ident, pos, aptId);
1112 static NavDataCache* static_instance = NULL;
1114 NavDataCache::NavDataCache()
1116 const int MAX_TRIES = 3;
1117 SGPath homePath(globals->get_fg_home());
1119 std::ostringstream os;
1120 string_list versionParts = simgear::strutils::split(VERSION, ".");
1121 if (versionParts.size() < 2) {
1122 os << "navdata.cache";
1124 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1127 homePath.append(os.str());
1129 for (int t=0; t < MAX_TRIES; ++t) {
1131 d.reset(new NavDataCachePrivate(homePath, this));
1133 //d->checkCacheFile();
1134 // reached this point with no exception, success
1136 } catch (sg_exception& e) {
1137 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1138 << " (attempt " << t << ")");
1144 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1145 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1146 Octree::global_spatialOctree =
1147 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1149 d->aptDatPath = SGPath(globals->get_fg_root());
1150 d->aptDatPath.append("Airports/apt.dat.gz");
1152 d->metarDatPath = SGPath(globals->get_fg_root());
1153 d->metarDatPath.append("Airports/metar.dat.gz");
1155 d->navDatPath = SGPath(globals->get_fg_root());
1156 d->navDatPath.append("Navaids/nav.dat.gz");
1158 d->fixDatPath = SGPath(globals->get_fg_root());
1159 d->fixDatPath.append("Navaids/fix.dat.gz");
1161 d->poiDatPath = SGPath(globals->get_fg_root());
1162 d->poiDatPath.append("Navaids/poi.dat.gz");
1164 d->carrierDatPath = SGPath(globals->get_fg_root());
1165 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1167 d->airwayDatPath = SGPath(globals->get_fg_root());
1168 d->airwayDatPath.append("Navaids/awy.dat.gz");
1171 NavDataCache::~NavDataCache()
1173 assert(static_instance == this);
1174 static_instance = NULL;
1175 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1179 NavDataCache* NavDataCache::instance()
1181 if (!static_instance) {
1182 static_instance = new NavDataCache;
1185 return static_instance;
1188 bool NavDataCache::isRebuildRequired()
1190 if (isCachedFileModified(d->aptDatPath) ||
1191 isCachedFileModified(d->metarDatPath) ||
1192 isCachedFileModified(d->navDatPath) ||
1193 isCachedFileModified(d->fixDatPath) ||
1194 isCachedFileModified(d->poiDatPath) ||
1195 isCachedFileModified(d->airwayDatPath))
1197 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1201 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1202 if (readStringProperty("scenery_paths") != sceneryPaths) {
1203 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1207 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1211 bool NavDataCache::rebuild()
1213 if (!d->rebuilder.get()) {
1214 d->rebuilder.reset(new RebuildThread(this));
1215 d->rebuilder->start();
1218 // poll the rebuild thread
1219 bool fin = d->rebuilder->isFinished();
1221 d->rebuilder.reset(); // all done!
1226 void NavDataCache::doRebuild()
1229 d->close(); // completely close the sqlite object
1230 d->path.remove(); // remove the file on disk
1231 d->init(); // star again from scratch
1233 Transaction txn(this);
1234 // initialise the root octree node
1235 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1240 airportDBLoad(d->aptDatPath);
1241 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1243 metarDataLoad(d->metarDatPath);
1244 stampCacheFile(d->aptDatPath);
1245 stampCacheFile(d->metarDatPath);
1248 loadFixes(d->fixDatPath);
1249 stampCacheFile(d->fixDatPath);
1250 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1253 navDBInit(d->navDatPath);
1254 stampCacheFile(d->navDatPath);
1255 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1258 poiDBInit(d->poiDatPath);
1259 stampCacheFile(d->poiDatPath);
1260 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1262 loadCarrierNav(d->carrierDatPath);
1263 stampCacheFile(d->carrierDatPath);
1266 Airway::load(d->airwayDatPath);
1267 stampCacheFile(d->airwayDatPath);
1268 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1270 d->flushDeferredOctreeUpdates();
1272 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1273 writeStringProperty("scenery_paths", sceneryPaths);
1276 } catch (sg_exception& e) {
1277 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1281 int NavDataCache::readIntProperty(const string& key)
1283 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1286 if (d->execSelect(d->readPropertyQuery)) {
1287 result = sqlite3_column_int(d->readPropertyQuery, 0);
1289 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1292 d->reset(d->readPropertyQuery);
1296 double NavDataCache::readDoubleProperty(const string& key)
1298 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1299 double result = 0.0;
1300 if (d->execSelect(d->readPropertyQuery)) {
1301 result = sqlite3_column_double(d->readPropertyQuery, 0);
1303 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1306 d->reset(d->readPropertyQuery);
1310 string NavDataCache::readStringProperty(const string& key)
1312 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1314 if (d->execSelect(d->readPropertyQuery)) {
1315 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1317 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1320 d->reset(d->readPropertyQuery);
1324 void NavDataCache::writeIntProperty(const string& key, int value)
1326 d->writeIntProperty(key, value);
1329 void NavDataCache::writeStringProperty(const string& key, const string& value)
1331 sqlite_bind_stdstring(d->clearProperty, 1, key);
1332 d->execUpdate(d->clearProperty);
1334 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1335 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1336 d->execUpdate(d->writePropertyQuery);
1339 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1341 sqlite_bind_stdstring(d->clearProperty, 1, key);
1342 d->execUpdate(d->clearProperty);
1344 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1345 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1346 d->execUpdate(d->writePropertyQuery);
1349 string_list NavDataCache::readStringListProperty(const string& key)
1351 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1353 while (d->stepSelect(d->readPropertyQuery)) {
1354 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1356 d->reset(d->readPropertyQuery);
1361 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1363 sqlite_bind_stdstring(d->clearProperty, 1, key);
1364 d->execUpdate(d->clearProperty);
1366 BOOST_FOREACH(string value, values) {
1367 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1368 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1369 d->execInsert(d->writePropertyMulti);
1373 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1375 if (!path.exists()) {
1376 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1379 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1380 bool isModified = true;
1382 if (d->execSelect(d->statCacheCheck)) {
1383 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1384 time_t delta = std::labs(modtime - path.modTime());
1387 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1390 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1391 // and then changed file again within x seconds - so it's suspicious...
1392 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1393 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1398 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1401 isModified = (delta != 0);
1403 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1406 d->reset(d->statCacheCheck);
1410 void NavDataCache::stampCacheFile(const SGPath& path)
1412 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1413 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1414 d->execInsert(d->stampFileCache);
1417 void NavDataCache::beginTransaction()
1419 if (d->transactionLevel == 0) {
1420 d->transactionAborted = false;
1421 d->stepSelect(d->beginTransactionStmt);
1422 sqlite3_reset(d->beginTransactionStmt);
1425 ++d->transactionLevel;
1428 void NavDataCache::commitTransaction()
1430 assert(d->transactionLevel > 0);
1431 if (--d->transactionLevel == 0) {
1432 // if a nested transaction aborted, we might end up here, but must
1433 // still abort the entire transaction. That's bad, but safer than
1435 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1439 while (retries < MAX_RETRIES) {
1440 result = sqlite3_step(q);
1441 if (result == SQLITE_DONE) {
1445 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1446 // what's going on here: autocommit in inactive inside BEGIN, so if
1447 // it's active, the DB was rolled-back
1448 if (sqlite3_get_autocommit(d->db)) {
1449 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1450 d->transactionAborted = true;
1454 if (result != SQLITE_BUSY) {
1458 SGTimeStamp::sleepForMSec(++retries * 10);
1459 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1460 } // of retry loop for DB busy
1463 if (result != SQLITE_DONE) {
1464 errMsg = sqlite3_errmsg(d->db);
1465 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1466 << " while running:\n\t" << sqlite3_sql(q));
1473 void NavDataCache::abortTransaction()
1475 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1477 assert(d->transactionLevel > 0);
1478 if (--d->transactionLevel == 0) {
1479 d->stepSelect(d->rollbackTransactionStmt);
1480 sqlite3_reset(d->rollbackTransactionStmt);
1483 d->transactionAborted = true;
1486 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1492 PositionedCache::iterator it = d->cache.find(rowid);
1493 if (it != d->cache.end()) {
1495 return it->second; // cache it
1498 FGPositioned* pos = d->loadById(rowid);
1499 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1504 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1507 // airports have their pos computed based on the avergae runway centres
1508 // so the pos isn't available immediately. Pass a dummy pos and avoid
1509 // doing spatial indexing until later
1510 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1512 false /* spatial index */);
1514 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1515 d->execInsert(d->insertAirport);
1520 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1522 if (d->cache.find(item) != d->cache.end()) {
1523 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1524 d->cache[item]->modifyPosition(pos);
1527 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1529 sqlite3_bind_int(d->setAirportPos, 1, item);
1530 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1531 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1532 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1534 // bug 905; the octree leaf may change here, but the leaf may already be
1535 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1536 // we may be called here as a result of loading one of those leaf's children.
1537 // instead of dealing with all those possibilites, such as modifying
1538 // the in-memory leaf's STL child container, we simply leave the runtime
1539 // structures alone. This is fine providing items do no move very far, since
1540 // all the spatial searches ultimately use the items' real cartesian position,
1541 // which was updated above.
1542 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1543 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1545 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1546 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1547 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1550 d->execUpdate(d->setAirportPos);
1553 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1555 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1556 pos, airportId, true /* spatial index */);
1560 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1561 const SGGeod& pos, PositionedID apt,
1562 double heading, double length, double width, double displacedThreshold,
1563 double stopway, int surfaceCode)
1565 // only runways are spatially indexed; don't bother indexing taxiways
1567 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1569 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1571 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1572 sqlite3_bind_double(d->insertRunway, 2, heading);
1573 sqlite3_bind_double(d->insertRunway, 3, length);
1574 sqlite3_bind_double(d->insertRunway, 4, width);
1575 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1576 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1577 sqlite3_bind_double(d->insertRunway, 7, stopway);
1579 return d->execInsert(d->insertRunway);
1582 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1584 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1585 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1586 d->execUpdate(d->setRunwayReciprocal);
1588 // and the opposite direction too!
1589 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1590 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1591 d->execUpdate(d->setRunwayReciprocal);
1594 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1596 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1597 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1598 d->execUpdate(d->setRunwayILS);
1600 // and the in-memory one
1601 if (d->cache.find(runway) != d->cache.end()) {
1602 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1603 instance->setILS(ils);
1607 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1608 double aHeading, double aDisplacedThreshold,
1611 // update the runway information
1612 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1613 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1614 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1615 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1616 d->execUpdate(d->updateRunwayThreshold);
1618 // now update the positional data
1619 updatePosition(runwayID, aThreshold);
1623 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1624 const string& name, const SGGeod& pos,
1625 int freq, int range, double multiuse,
1626 PositionedID apt, PositionedID runway)
1628 bool spatialIndex = true;
1629 if (ty == FGPositioned::MOBILE_TACAN) {
1630 spatialIndex = false;
1633 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1635 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1636 sqlite3_bind_int(d->insertNavaid, 2, freq);
1637 sqlite3_bind_int(d->insertNavaid, 3, range);
1638 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1639 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1640 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1641 return d->execInsert(d->insertNavaid);
1644 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1646 // Update DB entries...
1647 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1648 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1649 d->execUpdate(d->setNavaidColocated);
1651 // ...and the in-memory copy of the navrecord
1652 if (d->cache.find(navaid) != d->cache.end()) {
1653 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1654 rec->setColocatedDME(colocatedDME);
1658 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1660 sqlite3_bind_int64(d->updateILS, 1, ils);
1661 sqlite3_bind_double(d->updateILS, 2, aHdg);
1662 d->execUpdate(d->updateILS);
1663 updatePosition(ils, newPos);
1666 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1667 const string& name, const SGGeod& pos, int freq, int range,
1670 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1671 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1672 sqlite3_bind_int(d->insertCommStation, 2, freq);
1673 sqlite3_bind_int(d->insertCommStation, 3, range);
1674 return d->execInsert(d->insertCommStation);
1677 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1679 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1682 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1684 return d->insertPositioned(ty, ident, string(), aPos, 0,
1685 true /* spatial index */);
1688 void NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1690 d->removePositionedWithIdent(ty, aIdent);
1691 // should remove from the live cache too?
1694 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1696 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1697 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1698 d->execUpdate(d->setAirportMetar);
1701 //------------------------------------------------------------------------------
1702 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1703 FGPositioned::Filter* filter,
1706 return d->findAllByString(s, "ident", filter, exact);
1709 //------------------------------------------------------------------------------
1710 FGPositionedList NavDataCache::findAllWithName( const string& s,
1711 FGPositioned::Filter* filter,
1714 return d->findAllByString(s, "name", filter, exact);
1717 //------------------------------------------------------------------------------
1718 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1720 FGPositioned::Filter* aFilter )
1722 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1724 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1725 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1726 } else { // full type range
1727 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1728 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1731 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1732 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1733 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1734 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1736 FGPositionedRef result;
1738 while (d->stepSelect(d->findClosestWithIdent)) {
1739 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1740 if (aFilter && !aFilter->pass(pos)) {
1748 d->reset(d->findClosestWithIdent);
1753 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1755 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1756 d->execSelect1(d->getOctreeChildren);
1757 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1758 d->reset(d->getOctreeChildren);
1762 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1764 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1765 d->execInsert(d->insertOctree);
1767 #ifdef LAZY_OCTREE_UPDATES
1768 d->deferredOctreeUpdates.insert(pr);
1770 // lowest three bits of node ID are 0..7 index of the child in the parent
1771 int childIndex = nd->guid() & 0x07;
1773 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1774 // mask has bit N set where child N exists
1775 int childMask = 1 << childIndex;
1776 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1777 d->execUpdate(d->updateOctreeChildren);
1782 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1784 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1786 TypedPositionedVec r;
1787 while (d->stepSelect(d->getOctreeLeafChildren)) {
1788 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1789 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1790 r.push_back(std::make_pair(ty,
1791 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1794 d->reset(d->getOctreeLeafChildren);
1800 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1801 * implement the AirportList dialog. It's unfortunate that it needs to reside
1802 * here, but for now it's least ugly solution.
1804 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1806 string s = "%" + aFilter + "%";
1807 sqlite_bind_stdstring(d->searchAirports, 1, s);
1809 unsigned int numMatches = 0, numAllocated = 16;
1810 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1812 while (d->stepSelect(d->searchAirports)) {
1813 if ((numMatches + 1) >= numAllocated) {
1814 numAllocated <<= 1; // double in size!
1815 // reallocate results array
1816 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1817 memcpy(nresult, result, sizeof(char*) * numMatches);
1822 // nasty code to avoid excessive string copying and allocations.
1823 // We format results as follows (note whitespace!):
1824 // ' name-of-airport-chars (ident)'
1825 // so the total length is:
1826 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1827 // which gives a grand total of 7 + name-length + icao-length.
1828 // note the ident can be three letters (non-ICAO local strip), four
1829 // (default ICAO) or more (extended format ICAO)
1830 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1831 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1832 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1835 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1841 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1846 result[numMatches++] = entry;
1849 result[numMatches] = NULL; // end of list marker
1850 d->reset(d->searchAirports);
1855 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1857 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1859 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1860 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1861 } else { // full type range
1862 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1863 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1866 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1867 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1868 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1869 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1870 FGPositionedRef result;
1872 while (d->execSelect(d->findCommByFreq)) {
1873 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1874 if (aFilter && !aFilter->pass(p)) {
1882 d->reset(d->findCommByFreq);
1887 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1889 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1891 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1892 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1893 } else { // full type range
1894 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1895 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1898 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1899 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1900 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1901 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1903 return d->selectIds(d->findNavsByFreq);
1907 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1909 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1911 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1912 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1913 } else { // full type range
1914 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1915 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1918 return d->selectIds(d->findNavsByFreqNoPos);
1922 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1923 FGPositioned::Type maxTy)
1925 if (maxTy == FGPositioned::INVALID) {
1926 maxTy = ty; // single-type range
1929 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1930 sqlite3_bind_int(d->getAirportItems, 2, ty);
1931 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1933 return d->selectIds(d->getAirportItems);
1937 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1938 const std::string& ident)
1940 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1941 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1942 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1943 PositionedID result = 0;
1945 if (d->execSelect(d->getAirportItemByIdent)) {
1946 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1949 d->reset(d->getAirportItemByIdent);
1954 NavDataCache::findAirportRunway(const std::string& aName)
1956 if (aName.empty()) {
1957 return AirportRunwayPair();
1960 string_list parts = simgear::strutils::split(aName);
1961 if (parts.size() < 2) {
1962 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1963 return AirportRunwayPair();
1966 AirportRunwayPair result;
1967 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1968 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1970 if (d->execSelect(d->findAirportRunway)) {
1971 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1972 sqlite3_column_int64(d->findAirportRunway, 1));
1975 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1978 d->reset(d->findAirportRunway);
1983 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1985 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1986 sqlite3_bind_int64(d->findILS, 2, airport);
1987 sqlite_bind_stdstring(d->findILS, 3, runway);
1988 PositionedID result = 0;
1989 if (d->execSelect(d->findILS)) {
1990 result = sqlite3_column_int64(d->findILS, 0);
1993 d->reset(d->findILS);
1997 int NavDataCache::findAirway(int network, const string& aName)
1999 sqlite3_bind_int(d->findAirway, 1, network);
2000 sqlite_bind_stdstring(d->findAirway, 2, aName);
2003 if (d->execSelect(d->findAirway)) {
2005 airway = sqlite3_column_int(d->findAirway, 0);
2007 sqlite_bind_stdstring(d->insertAirway, 1, aName);
2008 sqlite3_bind_int(d->insertAirway, 2, network);
2009 airway = d->execInsert(d->insertAirway);
2012 d->reset(d->findAirway);
2016 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
2018 // assume all edges are bidirectional for the moment
2019 for (int i=0; i<2; ++i) {
2020 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
2021 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
2022 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
2023 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
2024 d->execInsert(d->insertAirwayEdge);
2026 std::swap(from, to);
2030 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
2032 sqlite3_bind_int(d->isPosInAirway, 1, network);
2033 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
2034 bool ok = d->execSelect(d->isPosInAirway);
2035 d->reset(d->isPosInAirway);
2040 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
2042 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
2043 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
2045 AirwayEdgeVec result;
2046 while (d->stepSelect(d->airwayEdgesFrom)) {
2047 result.push_back(AirwayEdge(
2048 sqlite3_column_int(d->airwayEdgesFrom, 0),
2049 sqlite3_column_int64(d->airwayEdgesFrom, 1)
2053 d->reset(d->airwayEdgesFrom);
2057 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2059 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2060 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2062 PositionedID result = 0;
2063 if (d->execSelect(d->findNavaidForRunway)) {
2064 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2067 d->reset(d->findNavaidForRunway);
2072 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2073 PositionedID aAirport,
2074 double aHeading, int aRadius, const std::string& aAircraftType,
2075 const std::string& aAirlines)
2077 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2079 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2080 // the appropriate pushback flag.
2081 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2082 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2083 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2084 d->execInsert(d->insertTaxiNode);
2086 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2087 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2088 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2089 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2090 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2091 return d->execInsert(d->insertParkingPos);
2094 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2096 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2097 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2098 d->execUpdate(d->setParkingPushBack);
2102 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2104 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2105 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2106 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2107 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2108 return d->execInsert(d->insertTaxiNode);
2111 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2113 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2114 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2115 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2116 d->execInsert(d->insertTaxiEdge);
2119 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2121 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2122 sqlite3_bind_int64(q, 1, aAirport);
2123 return d->selectIds(q);
2126 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2128 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2129 d->execUpdate(d->markTaxiNodeAsPushback);
2132 static double headingDifferenceDeg(double crs1, double crs2)
2134 double diff = crs2 - crs1;
2135 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2139 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2140 bool onRunway, FGRunway* aRunway)
2142 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2143 sqlite3_bind_int64(q, 1, airport);
2145 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2146 sqlite3_bind_double(q, 2, cartPos.x());
2147 sqlite3_bind_double(q, 3, cartPos.y());
2148 sqlite3_bind_double(q, 4, cartPos.z());
2150 PositionedID result = 0;
2151 while (d->execSelect(q)) {
2152 PositionedID id = sqlite3_column_int64(q, 0);
2158 // ensure found node lies on the runway
2159 FGPositionedRef node = loadById(id);
2160 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2161 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2171 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2173 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2174 sqlite3_bind_int64(q, 1, pos);
2175 return d->selectIds(q);
2178 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2181 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2182 sqlite3_bind_int(d->findAirportParking, 2, radius);
2183 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2185 return d->selectIds(d->findAirportParking);
2188 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2190 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2191 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2192 sqlite3_bind_int64(q, 2, aAirport);
2195 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2196 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2197 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2198 sqlite3_bind_int64(q, 3, aAirport);
2201 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2202 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2203 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2204 sqlite3_bind_int64(q, 3, aAirport);
2207 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2208 sqlite3_bind_int64(q, 1, aAirport);
2212 /////////////////////////////////////////////////////////////////////////////////////////
2213 // Transaction RAII object
2215 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2220 _instance->beginTransaction();
2223 NavDataCache::Transaction::~Transaction()
2226 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2227 _instance->abortTransaction();
2231 void NavDataCache::Transaction::commit()
2233 assert(!_committed);
2235 _instance->commitTransaction();
2238 } // of namespace flightgear