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;
75 const int CACHE_SIZE_KBYTES= 16000;
77 // bind a std::string to a sqlite statement. The std::string must live the
78 // entire duration of the statement execution - do not pass a temporary
79 // std::string, or the compiler may delete it, freeing the C-string storage,
80 // and causing subtle memory corruption bugs!
81 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
83 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
86 // variant of the above, which does not care about the lifetime of the
88 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
90 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
93 typedef sqlite3_stmt* sqlite3_stmt_ptr;
95 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
101 SGVec3d posA(sqlite3_value_double(argv[0]),
102 sqlite3_value_double(argv[1]),
103 sqlite3_value_double(argv[2]));
105 SGVec3d posB(sqlite3_value_double(argv[3]),
106 sqlite3_value_double(argv[4]),
107 sqlite3_value_double(argv[5]));
108 sqlite3_result_double(ctx, distSqr(posA, posB));
112 static string cleanRunwayNo(const string& aRwyNo)
114 if (aRwyNo[0] == 'x') {
115 return string(); // no ident for taxiways
118 string result(aRwyNo);
119 // canonicalise runway ident
120 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
121 result = "0" + aRwyNo;
124 // trim off trailing garbage
125 if (result.size() > 2) {
126 char suffix = toupper(result[2]);
128 result = result.substr(0, 2);
135 } // anonymous namespace
141 * Thread encapsulating a cache rebuild. This is not used to parallelise
142 * the rebuild - we must still wait until completion before doing other
143 * startup, since many things rely on a complete cache. The thread is used
144 * so we don't block the main event loop for an unacceptable duration,
145 * which causes 'not responding' / spinning beachballs on Windows & Mac
147 class RebuildThread : public SGThread
150 RebuildThread(NavDataCache* cache) :
157 bool isFinished() const
159 SGGuard<SGMutex> g(_lock);
168 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
170 SGGuard<SGMutex> g(_lock);
174 NavDataCache* _cache;
175 mutable SGMutex _lock;
179 ////////////////////////////////////////////////////////////////////////////
181 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
183 class AirportTower : public FGPositioned
186 AirportTower(PositionedID& guid, PositionedID airport,
187 const string& ident, const SGGeod& pos) :
188 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
193 class NavDataCache::NavDataCachePrivate
196 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
203 transactionAborted(false)
207 ~NavDataCachePrivate()
209 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
210 sqlite3_finalize(stmt);
219 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
220 sqlite3_open_v2(path.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 << ";";
260 void checkCacheFile()
262 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
266 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
267 if (!execSelect(stmt)) {
268 throw sg_exception("DB integrity check failed to run");
271 string v = (char*) sqlite3_column_text(stmt, 0);
273 throw sg_exception("DB integrity check returned:" + v);
276 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
280 void callSqlite(int result, const string& sql)
282 if (result == SQLITE_OK)
286 if (result == SQLITE_MISUSE) {
287 errMsg = "Sqlite API abuse";
288 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
290 errMsg = sqlite3_errmsg(db);
291 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
294 throw sg_exception("Sqlite error:" + errMsg, sql);
297 void runSQL(const string& sql)
299 sqlite3_stmt_ptr stmt;
300 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
304 } catch (sg_exception&) {
305 sqlite3_finalize(stmt);
309 sqlite3_finalize(stmt);
312 sqlite3_stmt_ptr prepare(const string& sql)
314 sqlite3_stmt_ptr stmt;
315 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
316 prepared.push_back(stmt);
320 void finalize(sqlite3_stmt_ptr s)
322 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
323 if (it == prepared.end()) {
324 throw sg_exception("Finalising statement that was not prepared");
331 void reset(sqlite3_stmt_ptr stmt)
334 if (sqlite3_reset(stmt) != SQLITE_OK) {
335 string errMsg = sqlite3_errmsg(db);
336 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
337 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
341 bool execSelect(sqlite3_stmt_ptr stmt)
343 return stepSelect(stmt);
346 bool stepSelect(sqlite3_stmt_ptr stmt)
350 while (retries < MAX_RETRIES) {
351 result = sqlite3_step(stmt);
352 if (result == SQLITE_ROW) {
353 return true; // at least one result row
356 if (result == SQLITE_DONE) {
357 return false; // no result rows
360 if (result != SQLITE_BUSY) {
364 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
365 SGTimeStamp::sleepForMSec(++retries * 10);
366 } // of retry loop for DB locked
368 if (retries >= MAX_RETRIES) {
369 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
374 if (result == SQLITE_MISUSE) {
375 errMsg = "Sqlite API abuse";
376 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
378 errMsg = sqlite3_errmsg(db);
379 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
380 << ") while running:\n\t" << sqlite3_sql(stmt));
383 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
386 void execSelect1(sqlite3_stmt_ptr stmt)
388 if (!execSelect(stmt)) {
389 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
390 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
394 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
397 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
402 void execUpdate(sqlite3_stmt_ptr stmt)
410 runSQL("CREATE TABLE properties ("
415 runSQL("CREATE TABLE stat_cache ("
416 "path VARCHAR unique,"
420 runSQL("CREATE TABLE positioned ("
422 "ident VARCHAR collate nocase,"
423 "name VARCHAR collate nocase,"
434 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
435 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
436 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
437 // allow efficient querying of 'all ATIS at this airport' or
438 // 'all towers at this airport'
439 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
441 runSQL("CREATE TABLE airport ("
446 runSQL("CREATE TABLE comm ("
452 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
454 runSQL("CREATE TABLE runway ("
459 "displaced_threshold FLOAT,"
466 runSQL("CREATE TABLE navaid ("
475 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
477 runSQL("CREATE TABLE octree (children INT)");
479 runSQL("CREATE TABLE airway ("
480 "ident VARCHAR collate nocase,"
481 "network INT" // high-level or low-level
484 runSQL("CREATE INDEX airway_ident ON airway(ident)");
486 runSQL("CREATE TABLE airway_edge ("
493 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
495 runSQL("CREATE TABLE taxi_node ("
501 runSQL("CREATE TABLE parking ("
509 runSQL("CREATE TABLE groundnet_edge ("
515 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
516 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
519 void prepareQueries()
521 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
523 beginTransactionStmt = prepare("BEGIN");
524 commitTransactionStmt = prepare("COMMIT");
525 rollbackTransactionStmt = prepare("ROLLBACK");
528 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
529 #define AND_TYPED "AND type>=?2 AND type <=?3"
530 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
531 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
532 "(path, stamp) VALUES (?,?)");
534 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
535 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
536 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
537 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
538 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
539 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
541 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
544 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
545 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
546 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
547 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
549 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
550 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
551 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
553 insertPositionedQuery = prepare("INSERT INTO positioned "
554 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
555 "cart_x, cart_y, cart_z)"
556 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
558 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
559 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
560 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
561 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
562 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
563 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
565 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
566 " VALUES (?, ?, ?)");
567 insertRunway = prepare("INSERT INTO runway "
568 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
569 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
570 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
573 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
574 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
576 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
577 "positioned.rowid=comm.rowid AND freq_khz=?1 "
578 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
580 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
581 "positioned.rowid=navaid.rowid "
582 "AND navaid.freq=?1 " AND_TYPED
583 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
585 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
586 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
588 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
589 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
591 // for an octree branch, return the child octree nodes which exist,
592 // described as a bit-mask
593 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
595 #ifdef LAZY_OCTREE_UPDATES
596 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
598 // mask the new child value into the existing one
599 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
602 // define a new octree node (with no children)
603 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
605 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
607 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
608 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
609 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
611 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
613 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
614 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
615 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
616 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
618 // three-way join to get the navaid ident and runway ident in a single select.
619 // we're joining positioned to itself by the navaid runway, with the complication
620 // that we need to join the navaids table to get the runway ID.
621 // we also need to filter by type to excluse glideslope (GS) matches
622 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
623 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
624 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
625 "AND (nav.type=?4 OR nav.type=?5)");
627 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
628 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
631 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
632 insertAirway = prepare("INSERT INTO airway (ident, network) "
635 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
636 "VALUES (?1, ?2, ?3, ?4)");
638 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
640 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
642 // parking / taxi-node graph
643 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
644 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
645 "VALUES (?1, ?2, ?3, ?4, ?5)");
646 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
648 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
649 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
650 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
651 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
652 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
654 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
656 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
657 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
658 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
659 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
661 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
662 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
663 "AND (type=?2 OR type=?3)");
664 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
665 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
667 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
668 "positioned.rowid = taxi_node.rowid AND airport=?1 "
669 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
672 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
673 "positioned.rowid = taxi_node.rowid AND airport=?1 "
675 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
677 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
678 "airport=?1 AND type=?4 AND "
679 "radius >= ?2 AND gate_type = ?3 AND "
680 "parking.rowid=positioned.rowid");
681 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
684 void writeIntProperty(const string& key, int value)
686 sqlite_bind_stdstring(clearProperty, 1, key);
687 execUpdate(clearProperty);
689 sqlite_bind_stdstring(writePropertyQuery, 1, key);
690 sqlite3_bind_int(writePropertyQuery, 2, value);
691 execUpdate(writePropertyQuery);
695 FGPositioned* loadById(sqlite_int64 rowId);
697 FGAirport* loadAirport(sqlite_int64 rowId,
698 FGPositioned::Type ty,
699 const string& id, const string& name, const SGGeod& pos)
701 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
702 execSelect1(loadAirportStmt);
703 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
704 reset(loadAirportStmt);
706 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
709 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
710 const string& id, const SGGeod& pos, PositionedID apt)
712 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
713 execSelect1(loadRunwayStmt);
715 double heading = sqlite3_column_double(loadRunwayStmt, 0);
716 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
717 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
718 int surface = sqlite3_column_int(loadRunwayStmt, 3);
720 if (ty == FGPositioned::TAXIWAY) {
721 reset(loadRunwayStmt);
722 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
724 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
725 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
726 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
727 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
728 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
729 displacedThreshold, stopway, surface, false);
731 if (reciprocal > 0) {
732 r->setReciprocalRunway(reciprocal);
739 reset(loadRunwayStmt);
744 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
745 const string& id, const string& name,
747 PositionedID airport)
749 sqlite3_bind_int64(loadCommStation, 1, rowId);
750 execSelect1(loadCommStation);
752 int range = sqlite3_column_int(loadCommStation, 0);
753 int freqKhz = sqlite3_column_int(loadCommStation, 1);
754 reset(loadCommStation);
756 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
757 c->setAirport(airport);
761 FGPositioned* loadNav(sqlite3_int64 rowId,
762 FGPositioned::Type ty, const string& id,
763 const string& name, const SGGeod& pos)
765 sqlite3_bind_int64(loadNavaid, 1, rowId);
766 execSelect1(loadNavaid);
768 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
769 // marker beacons are light-weight
770 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
771 (ty == FGPositioned::MM))
774 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
777 int rangeNm = sqlite3_column_int(loadNavaid, 0),
778 freq = sqlite3_column_int(loadNavaid, 1);
779 double mulituse = sqlite3_column_double(loadNavaid, 2);
780 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
783 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
786 FGPositioned* loadParking(sqlite3_int64 rowId,
787 const string& name, const SGGeod& pos,
788 PositionedID airport)
790 sqlite3_bind_int64(loadParkingPos, 1, rowId);
791 execSelect1(loadParkingPos);
793 double heading = sqlite3_column_double(loadParkingPos, 0);
794 int radius = sqlite3_column_int(loadParkingPos, 1);
795 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
796 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
797 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
798 reset(loadParkingPos);
800 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
803 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
804 PositionedID airport)
806 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
807 execSelect1(loadTaxiNodeStmt);
809 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
810 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
811 reset(loadTaxiNodeStmt);
813 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
816 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
817 const string& name, const SGGeod& pos, PositionedID apt,
820 SGVec3d cartPos(SGVec3d::fromGeod(pos));
822 sqlite3_bind_int(insertPositionedQuery, 1, ty);
823 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
824 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
825 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
826 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
827 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
828 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
831 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
832 assert(intersects(octreeLeaf->bbox(), cartPos));
833 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
835 sqlite3_bind_null(insertPositionedQuery, 8);
838 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
839 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
840 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
842 PositionedID r = execInsert(insertPositionedQuery);
846 FGPositioned::List findAllByString(const string& s, const string& column,
847 FGPositioned::Filter* filter, bool exact)
850 if (!exact) query += "%";
852 // build up SQL query text
853 string matchTerm = exact ? "=?1" : " LIKE ?1";
854 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
856 sql += " " AND_TYPED;
859 // find or prepare a suitable statement frrm the SQL
860 sqlite3_stmt_ptr stmt = findByStringDict[sql];
863 findByStringDict[sql] = stmt;
866 sqlite_bind_stdstring(stmt, 1, query);
868 sqlite3_bind_int(stmt, 2, filter->minType());
869 sqlite3_bind_int(stmt, 3, filter->maxType());
872 FGPositioned::List result;
873 // run the prepared SQL
874 while (stepSelect(stmt))
876 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
877 if (filter && !filter->pass(pos)) {
881 result.push_back(pos);
888 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
890 PositionedIDVec result;
891 while (stepSelect(query)) {
892 result.push_back(sqlite3_column_int64(query, 0));
898 double runwayLengthFt(PositionedID rwy)
900 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
901 execSelect1(runwayLengthFtQuery);
902 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
903 reset(runwayLengthFtQuery);
907 void flushDeferredOctreeUpdates()
909 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
910 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
911 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
912 execUpdate(updateOctreeChildren);
915 deferredOctreeUpdates.clear();
922 /// the actual cache of ID -> instances. This holds an owning reference,
923 /// so once items are in the cache they will never be deleted until
924 /// the cache drops its reference
925 PositionedCache cache;
926 unsigned int cacheHits, cacheMisses;
929 * record the levels of open transaction objects we have
931 unsigned int transactionLevel;
932 bool transactionAborted;
933 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
935 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
936 carrierDatPath, airwayDatPath;
938 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
939 stampFileCache, statCacheCheck,
940 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
942 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
944 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
945 insertCommStation, insertNavaid;
946 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
947 setAirportPos, updateRunwayThreshold, updateILS;
949 sqlite3_stmt_ptr findClosestWithIdent;
950 // octree (spatial index) related queries
951 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
952 getOctreeLeafChildren;
954 sqlite3_stmt_ptr searchAirports;
955 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
956 findNavsByFreqNoPos, findNavaidForRunway;
957 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
958 sqlite3_stmt_ptr findAirportRunway,
961 sqlite3_stmt_ptr runwayLengthFtQuery;
964 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
967 // groundnet (parking, taxi node graph)
968 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
969 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
970 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
971 setParkingPushBack, findNearestRunwayTaxiNode;
973 // since there's many permutations of ident/name queries, we create
974 // them programtically, but cache the exact query by its raw SQL once
976 std::map<string, sqlite3_stmt_ptr> findByStringDict;
978 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
981 std::set<Octree::Branch*> deferredOctreeUpdates;
983 // if we're performing a rebuild, the thread that is doing the work.
985 std::auto_ptr<RebuildThread> rebuilder;
988 //////////////////////////////////////////////////////////////////////
990 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
993 sqlite3_bind_int64(loadPositioned, 1, rowid);
994 execSelect1(loadPositioned);
996 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
997 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
999 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
1000 string name = (char*) sqlite3_column_text(loadPositioned, 3);
1001 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
1002 double lon = sqlite3_column_double(loadPositioned, 5);
1003 double lat = sqlite3_column_double(loadPositioned, 6);
1004 double elev = sqlite3_column_double(loadPositioned, 7);
1005 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1007 reset(loadPositioned);
1010 case FGPositioned::AIRPORT:
1011 case FGPositioned::SEAPORT:
1012 case FGPositioned::HELIPORT:
1013 return loadAirport(rowid, ty, ident, name, pos);
1015 case FGPositioned::TOWER:
1016 return new AirportTower(rowid, aptId, ident, pos);
1018 case FGPositioned::RUNWAY:
1019 case FGPositioned::TAXIWAY:
1020 return loadRunway(rowid, ty, ident, pos, aptId);
1022 case FGPositioned::LOC:
1023 case FGPositioned::VOR:
1024 case FGPositioned::GS:
1025 case FGPositioned::ILS:
1026 case FGPositioned::NDB:
1027 case FGPositioned::OM:
1028 case FGPositioned::MM:
1029 case FGPositioned::IM:
1030 case FGPositioned::DME:
1031 case FGPositioned::TACAN:
1032 case FGPositioned::MOBILE_TACAN:
1035 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
1036 if (apt->validateILSData()) {
1037 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1038 // queried data above is probably invalid, force us to go around again
1039 // (the next time through, validateILSData will return false)
1040 return outer->loadById(rowid);
1044 return loadNav(rowid, ty, ident, name, pos);
1047 case FGPositioned::FIX:
1048 return new FGFix(rowid, ident, pos);
1050 case FGPositioned::WAYPOINT:
1052 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
1056 case FGPositioned::FREQ_GROUND:
1057 case FGPositioned::FREQ_TOWER:
1058 case FGPositioned::FREQ_ATIS:
1059 case FGPositioned::FREQ_AWOS:
1060 case FGPositioned::FREQ_APP_DEP:
1061 case FGPositioned::FREQ_ENROUTE:
1062 case FGPositioned::FREQ_CLEARANCE:
1063 case FGPositioned::FREQ_UNICOM:
1064 return loadComm(rowid, ty, ident, name, pos, aptId);
1066 case FGPositioned::TAXI_NODE:
1067 return loadTaxiNode(rowid, pos, aptId);
1069 case FGPositioned::PARKING:
1070 return loadParking(rowid, ident, pos, aptId);
1078 static NavDataCache* static_instance = NULL;
1080 NavDataCache::NavDataCache()
1082 const int MAX_TRIES = 3;
1083 SGPath homePath(globals->get_fg_home());
1084 homePath.append("navdata.cache");
1086 for (int t=0; t < MAX_TRIES; ++t) {
1088 d.reset(new NavDataCachePrivate(homePath, this));
1090 //d->checkCacheFile();
1091 // reached this point with no exception, success
1093 } catch (sg_exception& e) {
1094 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1095 << " (attempt " << t << ")");
1101 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1102 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1103 Octree::global_spatialOctree =
1104 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1106 d->aptDatPath = SGPath(globals->get_fg_root());
1107 d->aptDatPath.append("Airports/apt.dat.gz");
1109 d->metarDatPath = SGPath(globals->get_fg_root());
1110 d->metarDatPath.append("Airports/metar.dat.gz");
1112 d->navDatPath = SGPath(globals->get_fg_root());
1113 d->navDatPath.append("Navaids/nav.dat.gz");
1115 d->fixDatPath = SGPath(globals->get_fg_root());
1116 d->fixDatPath.append("Navaids/fix.dat.gz");
1118 d->carrierDatPath = SGPath(globals->get_fg_root());
1119 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1121 d->airwayDatPath = SGPath(globals->get_fg_root());
1122 d->airwayDatPath.append("Navaids/awy.dat.gz");
1125 NavDataCache::~NavDataCache()
1127 assert(static_instance == this);
1128 static_instance = NULL;
1129 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1133 NavDataCache* NavDataCache::instance()
1135 if (!static_instance) {
1136 static_instance = new NavDataCache;
1139 return static_instance;
1142 bool NavDataCache::isRebuildRequired()
1144 if (isCachedFileModified(d->aptDatPath) ||
1145 isCachedFileModified(d->metarDatPath) ||
1146 isCachedFileModified(d->navDatPath) ||
1147 isCachedFileModified(d->fixDatPath) ||
1148 isCachedFileModified(d->airwayDatPath))
1150 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1154 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1155 if (readStringProperty("scenery_paths") != sceneryPaths) {
1156 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1160 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1164 bool NavDataCache::rebuild()
1166 if (!d->rebuilder.get()) {
1167 d->rebuilder.reset(new RebuildThread(this));
1168 d->rebuilder->start();
1171 // poll the rebuild thread
1172 bool fin = d->rebuilder->isFinished();
1174 d->rebuilder.reset(); // all done!
1179 void NavDataCache::doRebuild()
1182 Transaction txn(this);
1183 d->runSQL("DELETE FROM positioned");
1184 d->runSQL("DELETE FROM airport");
1185 d->runSQL("DELETE FROM runway");
1186 d->runSQL("DELETE FROM navaid");
1187 d->runSQL("DELETE FROM comm");
1188 d->runSQL("DELETE FROM octree");
1189 d->runSQL("DELETE FROM airway");
1190 d->runSQL("DELETE FROM airway_edge");
1191 d->runSQL("DELETE FROM taxi_node");
1192 d->runSQL("DELETE FROM parking");
1193 d->runSQL("DELETE FROM groundnet_edge");
1194 d->runSQL("DELETE FROM stat_cache");
1196 // initialise the root octree node
1197 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1202 airportDBLoad(d->aptDatPath);
1203 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1205 metarDataLoad(d->metarDatPath);
1206 stampCacheFile(d->aptDatPath);
1207 stampCacheFile(d->metarDatPath);
1210 loadFixes(d->fixDatPath);
1211 stampCacheFile(d->fixDatPath);
1212 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1215 navDBInit(d->navDatPath);
1216 stampCacheFile(d->navDatPath);
1217 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1219 loadCarrierNav(d->carrierDatPath);
1220 stampCacheFile(d->carrierDatPath);
1223 Airway::load(d->airwayDatPath);
1224 stampCacheFile(d->airwayDatPath);
1225 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1227 d->flushDeferredOctreeUpdates();
1229 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1230 writeStringProperty("scenery_paths", sceneryPaths);
1233 } catch (sg_exception& e) {
1234 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1238 int NavDataCache::readIntProperty(const string& key)
1240 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1243 if (d->execSelect(d->readPropertyQuery)) {
1244 result = sqlite3_column_int(d->readPropertyQuery, 0);
1246 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1249 d->reset(d->readPropertyQuery);
1253 double NavDataCache::readDoubleProperty(const string& key)
1255 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1256 double result = 0.0;
1257 if (d->execSelect(d->readPropertyQuery)) {
1258 result = sqlite3_column_double(d->readPropertyQuery, 0);
1260 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1263 d->reset(d->readPropertyQuery);
1267 string NavDataCache::readStringProperty(const string& key)
1269 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1271 if (d->execSelect(d->readPropertyQuery)) {
1272 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1274 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1277 d->reset(d->readPropertyQuery);
1281 void NavDataCache::writeIntProperty(const string& key, int value)
1283 d->writeIntProperty(key, value);
1286 void NavDataCache::writeStringProperty(const string& key, const string& value)
1288 sqlite_bind_stdstring(d->clearProperty, 1, key);
1289 d->execUpdate(d->clearProperty);
1291 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1292 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1293 d->execUpdate(d->writePropertyQuery);
1296 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1298 sqlite_bind_stdstring(d->clearProperty, 1, key);
1299 d->execUpdate(d->clearProperty);
1301 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1302 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1303 d->execUpdate(d->writePropertyQuery);
1306 string_list NavDataCache::readStringListProperty(const string& key)
1308 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1310 while (d->stepSelect(d->readPropertyQuery)) {
1311 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1313 d->reset(d->readPropertyQuery);
1318 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1320 sqlite_bind_stdstring(d->clearProperty, 1, key);
1321 d->execUpdate(d->clearProperty);
1323 BOOST_FOREACH(string value, values) {
1324 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1325 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1326 d->execInsert(d->writePropertyMulti);
1330 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1332 if (!path.exists()) {
1333 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1336 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1337 bool isModified = true;
1339 if (d->execSelect(d->statCacheCheck)) {
1340 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1341 time_t delta = std::labs(modtime - path.modTime());
1344 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1347 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1348 // and then changed file again within x seconds - so it's suspicious...
1349 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1350 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1355 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1358 isModified = (delta != 0);
1360 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1363 d->reset(d->statCacheCheck);
1367 void NavDataCache::stampCacheFile(const SGPath& path)
1369 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1370 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1371 d->execInsert(d->stampFileCache);
1374 void NavDataCache::beginTransaction()
1376 if (d->transactionLevel == 0) {
1377 d->transactionAborted = false;
1378 d->stepSelect(d->beginTransactionStmt);
1379 sqlite3_reset(d->beginTransactionStmt);
1382 ++d->transactionLevel;
1385 void NavDataCache::commitTransaction()
1387 assert(d->transactionLevel > 0);
1388 if (--d->transactionLevel == 0) {
1389 // if a nested transaction aborted, we might end up here, but must
1390 // still abort the entire transaction. That's bad, but safer than
1392 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1396 while (retries < MAX_RETRIES) {
1397 result = sqlite3_step(q);
1398 if (result == SQLITE_DONE) {
1402 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1403 // what's going on here: autocommit in inactive inside BEGIN, so if
1404 // it's active, the DB was rolled-back
1405 if (sqlite3_get_autocommit(d->db)) {
1406 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1407 d->transactionAborted = true;
1411 if (result != SQLITE_BUSY) {
1415 SGTimeStamp::sleepForMSec(++retries * 10);
1416 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1417 } // of retry loop for DB busy
1420 if (result != SQLITE_DONE) {
1421 errMsg = sqlite3_errmsg(d->db);
1422 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1423 << " while running:\n\t" << sqlite3_sql(q));
1430 void NavDataCache::abortTransaction()
1432 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1434 assert(d->transactionLevel > 0);
1435 if (--d->transactionLevel == 0) {
1436 d->stepSelect(d->rollbackTransactionStmt);
1437 sqlite3_reset(d->rollbackTransactionStmt);
1440 d->transactionAborted = true;
1443 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1449 PositionedCache::iterator it = d->cache.find(rowid);
1450 if (it != d->cache.end()) {
1452 return it->second; // cache it
1455 FGPositioned* pos = d->loadById(rowid);
1456 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1461 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1464 // airports have their pos computed based on the avergae runway centres
1465 // so the pos isn't available immediately. Pass a dummy pos and avoid
1466 // doing spatial indexing until later
1467 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1469 false /* spatial index */);
1471 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1472 d->execInsert(d->insertAirport);
1477 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1479 if (d->cache.find(item) != d->cache.end()) {
1480 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1481 d->cache[item]->modifyPosition(pos);
1484 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1486 sqlite3_bind_int(d->setAirportPos, 1, item);
1487 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1488 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1489 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1491 // bug 905; the octree leaf may change here, but the leaf may already be
1492 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1493 // we may be called here as a result of loading one of those leaf's children.
1494 // instead of dealing with all those possibilites, such as modifying
1495 // the in-memory leaf's STL child container, we simply leave the runtime
1496 // structures alone. This is fine providing items do no move very far, since
1497 // all the spatial searches ultimately use the items' real cartesian position,
1498 // which was updated above.
1499 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1500 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1502 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1503 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1504 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1507 d->execUpdate(d->setAirportPos);
1510 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1512 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1513 pos, airportId, true /* spatial index */);
1517 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1518 const SGGeod& pos, PositionedID apt,
1519 double heading, double length, double width, double displacedThreshold,
1520 double stopway, int surfaceCode)
1522 // only runways are spatially indexed; don't bother indexing taxiways
1524 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1526 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1528 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1529 sqlite3_bind_double(d->insertRunway, 2, heading);
1530 sqlite3_bind_double(d->insertRunway, 3, length);
1531 sqlite3_bind_double(d->insertRunway, 4, width);
1532 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1533 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1534 sqlite3_bind_double(d->insertRunway, 7, stopway);
1536 return d->execInsert(d->insertRunway);
1539 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1541 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1542 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1543 d->execUpdate(d->setRunwayReciprocal);
1545 // and the opposite direction too!
1546 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1547 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1548 d->execUpdate(d->setRunwayReciprocal);
1551 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1553 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1554 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1555 d->execUpdate(d->setRunwayILS);
1558 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1559 double aHeading, double aDisplacedThreshold,
1562 // update the runway information
1563 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1564 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1565 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1566 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1567 d->execUpdate(d->updateRunwayThreshold);
1569 // compute the new runway center, based on the threshold lat/lon and length,
1570 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1571 SGGeod newCenter= SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER);
1572 newCenter.setElevationM(aThreshold.getElevationM());
1574 // now update the positional data
1575 updatePosition(runwayID, newCenter);
1579 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1580 const string& name, const SGGeod& pos,
1581 int freq, int range, double multiuse,
1582 PositionedID apt, PositionedID runway)
1584 bool spatialIndex = true;
1585 if (ty == FGPositioned::MOBILE_TACAN) {
1586 spatialIndex = false;
1589 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1591 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1592 sqlite3_bind_int(d->insertNavaid, 2, freq);
1593 sqlite3_bind_int(d->insertNavaid, 3, range);
1594 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1595 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1596 return d->execInsert(d->insertNavaid);
1599 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1601 sqlite3_bind_int64(d->updateILS, 1, ils);
1602 sqlite3_bind_double(d->updateILS, 2, aHdg);
1603 d->execUpdate(d->updateILS);
1604 updatePosition(ils, newPos);
1607 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1608 const string& name, const SGGeod& pos, int freq, int range,
1611 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1612 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1613 sqlite3_bind_int(d->insertCommStation, 2, freq);
1614 sqlite3_bind_int(d->insertCommStation, 3, range);
1615 return d->execInsert(d->insertCommStation);
1618 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1620 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1623 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1625 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1626 true /* spatial index */);
1629 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1631 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1632 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1633 d->execUpdate(d->setAirportMetar);
1636 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1637 FGPositioned::Filter* filter, bool exact)
1639 return d->findAllByString(s, "ident", filter, exact);
1642 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1643 FGPositioned::Filter* filter, bool exact)
1645 return d->findAllByString(s, "name", filter, exact);
1648 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1649 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1651 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1653 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1654 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1655 } else { // full type range
1656 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1657 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1660 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1661 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1662 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1663 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1665 FGPositionedRef result;
1667 while (d->stepSelect(d->findClosestWithIdent)) {
1668 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1669 if (aFilter && !aFilter->pass(pos)) {
1677 d->reset(d->findClosestWithIdent);
1682 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1684 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1685 d->execSelect1(d->getOctreeChildren);
1686 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1687 d->reset(d->getOctreeChildren);
1691 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1693 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1694 d->execInsert(d->insertOctree);
1696 #ifdef LAZY_OCTREE_UPDATES
1697 d->deferredOctreeUpdates.insert(pr);
1699 // lowest three bits of node ID are 0..7 index of the child in the parent
1700 int childIndex = nd->guid() & 0x07;
1702 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1703 // mask has bit N set where child N exists
1704 int childMask = 1 << childIndex;
1705 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1706 d->execUpdate(d->updateOctreeChildren);
1711 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1713 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1715 TypedPositionedVec r;
1716 while (d->stepSelect(d->getOctreeLeafChildren)) {
1717 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1718 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1719 r.push_back(std::make_pair(ty,
1720 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1723 d->reset(d->getOctreeLeafChildren);
1729 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1730 * implement the AirportList dialog. It's unfortunate that it needs to reside
1731 * here, but for now it's least ugly solution.
1733 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1735 string s = "%" + aFilter + "%";
1736 sqlite_bind_stdstring(d->searchAirports, 1, s);
1738 unsigned int numMatches = 0, numAllocated = 16;
1739 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1741 while (d->stepSelect(d->searchAirports)) {
1742 if ((numMatches + 1) >= numAllocated) {
1743 numAllocated <<= 1; // double in size!
1744 // reallocate results array
1745 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1746 memcpy(nresult, result, sizeof(char*) * numMatches);
1751 // nasty code to avoid excessive string copying and allocations.
1752 // We format results as follows (note whitespace!):
1753 // ' name-of-airport-chars (ident)'
1754 // so the total length is:
1755 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1756 // which gives a grand total of 7 + name-length + icao-length.
1757 // note the ident can be three letters (non-ICAO local strip), four
1758 // (default ICAO) or more (extended format ICAO)
1759 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1760 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1761 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1764 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1770 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1775 result[numMatches++] = entry;
1778 result[numMatches] = NULL; // end of list marker
1779 d->reset(d->searchAirports);
1784 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1786 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1788 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1789 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1790 } else { // full type range
1791 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1792 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1795 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1796 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1797 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1798 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1799 FGPositionedRef result;
1801 while (d->execSelect(d->findCommByFreq)) {
1802 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1803 if (aFilter && !aFilter->pass(p)) {
1811 d->reset(d->findCommByFreq);
1816 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1818 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1820 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1821 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1822 } else { // full type range
1823 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1824 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1827 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1828 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1829 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1830 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1832 return d->selectIds(d->findNavsByFreq);
1836 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1838 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1840 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1841 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1842 } else { // full type range
1843 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1844 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1847 return d->selectIds(d->findNavsByFreqNoPos);
1851 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1852 FGPositioned::Type maxTy)
1854 if (maxTy == FGPositioned::INVALID) {
1855 maxTy = ty; // single-type range
1858 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1859 sqlite3_bind_int(d->getAirportItems, 2, ty);
1860 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1862 return d->selectIds(d->getAirportItems);
1866 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1867 const std::string& ident)
1869 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1870 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1871 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1872 PositionedID result = 0;
1874 if (d->execSelect(d->getAirportItemByIdent)) {
1875 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1878 d->reset(d->getAirportItemByIdent);
1883 NavDataCache::findAirportRunway(const std::string& aName)
1885 if (aName.empty()) {
1886 return AirportRunwayPair();
1889 string_list parts = simgear::strutils::split(aName);
1890 if (parts.size() < 2) {
1891 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1892 return AirportRunwayPair();
1895 AirportRunwayPair result;
1896 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1897 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1899 if (d->execSelect(d->findAirportRunway)) {
1900 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1901 sqlite3_column_int64(d->findAirportRunway, 1));
1904 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1907 d->reset(d->findAirportRunway);
1912 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1914 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1915 sqlite3_bind_int64(d->findILS, 2, airport);
1916 sqlite_bind_stdstring(d->findILS, 3, runway);
1917 PositionedID result = 0;
1918 if (d->execSelect(d->findILS)) {
1919 result = sqlite3_column_int64(d->findILS, 0);
1922 d->reset(d->findILS);
1926 int NavDataCache::findAirway(int network, const string& aName)
1928 sqlite3_bind_int(d->findAirway, 1, network);
1929 sqlite_bind_stdstring(d->findAirway, 2, aName);
1932 if (d->execSelect(d->findAirway)) {
1934 airway = sqlite3_column_int(d->findAirway, 0);
1936 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1937 sqlite3_bind_int(d->insertAirway, 2, network);
1938 airway = d->execInsert(d->insertAirway);
1941 d->reset(d->findAirway);
1945 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1947 // assume all edges are bidirectional for the moment
1948 for (int i=0; i<2; ++i) {
1949 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1950 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1951 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1952 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1953 d->execInsert(d->insertAirwayEdge);
1955 std::swap(from, to);
1959 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1961 sqlite3_bind_int(d->isPosInAirway, 1, network);
1962 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1963 bool ok = d->execSelect(d->isPosInAirway);
1964 d->reset(d->isPosInAirway);
1969 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1971 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1972 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1974 AirwayEdgeVec result;
1975 while (d->stepSelect(d->airwayEdgesFrom)) {
1976 result.push_back(AirwayEdge(
1977 sqlite3_column_int(d->airwayEdgesFrom, 0),
1978 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1982 d->reset(d->airwayEdgesFrom);
1986 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
1988 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
1989 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
1991 PositionedID result = 0;
1992 if (d->execSelect(d->findNavaidForRunway)) {
1993 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
1996 d->reset(d->findNavaidForRunway);
2001 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2002 PositionedID aAirport,
2003 double aHeading, int aRadius, const std::string& aAircraftType,
2004 const std::string& aAirlines)
2006 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2008 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2009 // the appropriate pushback flag.
2010 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2011 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2012 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2013 d->execInsert(d->insertTaxiNode);
2015 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2016 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2017 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2018 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2019 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2020 return d->execInsert(d->insertParkingPos);
2023 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2025 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2026 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2027 d->execUpdate(d->setParkingPushBack);
2031 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2033 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2034 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2035 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2036 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2037 return d->execInsert(d->insertTaxiNode);
2040 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2042 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2043 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2044 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2045 d->execInsert(d->insertTaxiEdge);
2048 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2050 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2051 sqlite3_bind_int64(q, 1, aAirport);
2052 return d->selectIds(q);
2055 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2057 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2058 d->execUpdate(d->markTaxiNodeAsPushback);
2061 static double headingDifferenceDeg(double crs1, double crs2)
2063 double diff = crs2 - crs1;
2064 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2068 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2069 bool onRunway, FGRunway* aRunway)
2071 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2072 sqlite3_bind_int64(q, 1, airport);
2074 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2075 sqlite3_bind_double(q, 2, cartPos.x());
2076 sqlite3_bind_double(q, 3, cartPos.y());
2077 sqlite3_bind_double(q, 4, cartPos.z());
2079 PositionedID result = 0;
2080 while (d->execSelect(q)) {
2081 PositionedID id = sqlite3_column_int64(q, 0);
2087 // ensure found node lies on the runway
2088 FGPositionedRef node = loadById(id);
2089 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2090 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2100 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2102 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2103 sqlite3_bind_int64(q, 1, pos);
2104 return d->selectIds(q);
2107 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2110 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2111 sqlite3_bind_int(d->findAirportParking, 2, radius);
2112 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2114 return d->selectIds(d->findAirportParking);
2117 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2119 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2120 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2121 sqlite3_bind_int64(q, 2, aAirport);
2124 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid 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 positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2131 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2132 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2133 sqlite3_bind_int64(q, 3, aAirport);
2136 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2137 sqlite3_bind_int64(q, 1, aAirport);
2141 /////////////////////////////////////////////////////////////////////////////////////////
2142 // Transaction RAII object
2144 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2149 _instance->beginTransaction();
2152 NavDataCache::Transaction::~Transaction()
2155 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2156 _instance->abortTransaction();
2160 void NavDataCache::Transaction::commit()
2162 assert(!_committed);
2164 _instance->commitTransaction();
2167 } // of namespace flightgear