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);
216 sqlite3_open_v2(path.c_str(), &db,
217 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
220 sqlite3_stmt_ptr checkTables =
221 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
223 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
224 f_distanceCartSqrFunction, NULL, NULL);
226 execSelect(checkTables);
227 bool didCreate = false;
228 if (sqlite3_column_int(checkTables, 0) == 0) {
229 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
234 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
235 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
236 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
239 writeIntProperty("schema-version", SCHEMA_VERSION);
241 int schemaVersion = outer->readIntProperty("schema-version");
242 if (schemaVersion != SCHEMA_VERSION) {
243 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
244 throw sg_exception("Navcache schema has changed");
248 // see http://www.sqlite.org/pragma.html#pragma_cache_size
249 // for the details, small cache would cause thrashing.
250 std::ostringstream q;
251 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
258 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
259 sqlite3_finalize(stmt);
265 void checkCacheFile()
267 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
271 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
272 if (!execSelect(stmt)) {
273 throw sg_exception("DB integrity check failed to run");
276 string v = (char*) sqlite3_column_text(stmt, 0);
278 throw sg_exception("DB integrity check returned:" + v);
281 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
285 void callSqlite(int result, const string& sql)
287 if (result == SQLITE_OK)
291 if (result == SQLITE_MISUSE) {
292 errMsg = "Sqlite API abuse";
293 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
295 errMsg = sqlite3_errmsg(db);
296 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
299 throw sg_exception("Sqlite error:" + errMsg, sql);
302 void runSQL(const string& sql)
304 sqlite3_stmt_ptr stmt;
305 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
309 } catch (sg_exception&) {
310 sqlite3_finalize(stmt);
314 sqlite3_finalize(stmt);
317 sqlite3_stmt_ptr prepare(const string& sql)
319 sqlite3_stmt_ptr stmt;
320 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
321 prepared.push_back(stmt);
325 void finalize(sqlite3_stmt_ptr s)
327 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
328 if (it == prepared.end()) {
329 throw sg_exception("Finalising statement that was not prepared");
336 void reset(sqlite3_stmt_ptr stmt)
339 if (sqlite3_reset(stmt) != SQLITE_OK) {
340 string errMsg = sqlite3_errmsg(db);
341 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
342 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
346 bool execSelect(sqlite3_stmt_ptr stmt)
348 return stepSelect(stmt);
351 bool stepSelect(sqlite3_stmt_ptr stmt)
355 while (retries < MAX_RETRIES) {
356 result = sqlite3_step(stmt);
357 if (result == SQLITE_ROW) {
358 return true; // at least one result row
361 if (result == SQLITE_DONE) {
362 return false; // no result rows
365 if (result != SQLITE_BUSY) {
369 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
370 SGTimeStamp::sleepForMSec(++retries * 10);
371 } // of retry loop for DB locked
373 if (retries >= MAX_RETRIES) {
374 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
379 if (result == SQLITE_MISUSE) {
380 errMsg = "Sqlite API abuse";
381 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
383 errMsg = sqlite3_errmsg(db);
384 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
385 << ") while running:\n\t" << sqlite3_sql(stmt));
388 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
391 void execSelect1(sqlite3_stmt_ptr stmt)
393 if (!execSelect(stmt)) {
394 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
395 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
399 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
402 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
407 void execUpdate(sqlite3_stmt_ptr stmt)
415 runSQL("CREATE TABLE properties ("
420 runSQL("CREATE TABLE stat_cache ("
421 "path VARCHAR unique,"
425 runSQL("CREATE TABLE positioned ("
427 "ident VARCHAR collate nocase,"
428 "name VARCHAR collate nocase,"
439 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
440 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
441 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
442 // allow efficient querying of 'all ATIS at this airport' or
443 // 'all towers at this airport'
444 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
446 runSQL("CREATE TABLE airport ("
451 runSQL("CREATE TABLE comm ("
457 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
459 runSQL("CREATE TABLE runway ("
464 "displaced_threshold FLOAT,"
471 runSQL("CREATE TABLE navaid ("
480 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
482 runSQL("CREATE TABLE octree (children INT)");
484 runSQL("CREATE TABLE airway ("
485 "ident VARCHAR collate nocase,"
486 "network INT" // high-level or low-level
489 runSQL("CREATE INDEX airway_ident ON airway(ident)");
491 runSQL("CREATE TABLE airway_edge ("
498 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
500 runSQL("CREATE TABLE taxi_node ("
506 runSQL("CREATE TABLE parking ("
514 runSQL("CREATE TABLE groundnet_edge ("
520 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
521 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
524 void prepareQueries()
526 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
528 beginTransactionStmt = prepare("BEGIN");
529 commitTransactionStmt = prepare("COMMIT");
530 rollbackTransactionStmt = prepare("ROLLBACK");
533 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
534 #define AND_TYPED "AND type>=?2 AND type <=?3"
535 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
536 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
537 "(path, stamp) VALUES (?,?)");
539 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
540 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
541 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
542 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
543 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
544 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
546 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
549 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
550 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
551 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
552 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
554 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
555 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
556 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
558 insertPositionedQuery = prepare("INSERT INTO positioned "
559 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
560 "cart_x, cart_y, cart_z)"
561 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
563 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
564 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
565 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
566 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
567 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
568 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
570 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
571 " VALUES (?, ?, ?)");
572 insertRunway = prepare("INSERT INTO runway "
573 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
574 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
575 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
577 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
580 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
581 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
583 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
584 "positioned.rowid=comm.rowid AND freq_khz=?1 "
585 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
587 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
588 "positioned.rowid=navaid.rowid "
589 "AND navaid.freq=?1 " AND_TYPED
590 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
592 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
593 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
595 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
596 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
598 // for an octree branch, return the child octree nodes which exist,
599 // described as a bit-mask
600 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
602 #ifdef LAZY_OCTREE_UPDATES
603 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
605 // mask the new child value into the existing one
606 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
609 // define a new octree node (with no children)
610 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
612 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
614 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
615 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
616 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
618 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
620 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
621 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
622 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
623 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
625 // three-way join to get the navaid ident and runway ident in a single select.
626 // we're joining positioned to itself by the navaid runway, with the complication
627 // that we need to join the navaids table to get the runway ID.
628 // we also need to filter by type to excluse glideslope (GS) matches
629 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
630 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
631 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
632 "AND (nav.type=?4 OR nav.type=?5)");
634 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
635 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
638 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
639 insertAirway = prepare("INSERT INTO airway (ident, network) "
642 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
643 "VALUES (?1, ?2, ?3, ?4)");
645 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
647 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
649 // parking / taxi-node graph
650 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
651 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
652 "VALUES (?1, ?2, ?3, ?4, ?5)");
653 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
655 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
656 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
657 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
658 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
659 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
661 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
663 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
664 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
665 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
666 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
668 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
669 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
670 "AND (type=?2 OR type=?3)");
671 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
672 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
674 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
675 "positioned.rowid = taxi_node.rowid AND airport=?1 "
676 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
679 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
680 "positioned.rowid = taxi_node.rowid AND airport=?1 "
682 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
684 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
685 "airport=?1 AND type=?4 AND "
686 "radius >= ?2 AND gate_type = ?3 AND "
687 "parking.rowid=positioned.rowid");
688 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
691 void writeIntProperty(const string& key, int value)
693 sqlite_bind_stdstring(clearProperty, 1, key);
694 execUpdate(clearProperty);
696 sqlite_bind_stdstring(writePropertyQuery, 1, key);
697 sqlite3_bind_int(writePropertyQuery, 2, value);
698 execUpdate(writePropertyQuery);
702 FGPositioned* loadById(sqlite_int64 rowId);
704 FGAirport* loadAirport(sqlite_int64 rowId,
705 FGPositioned::Type ty,
706 const string& id, const string& name, const SGGeod& pos)
708 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
709 execSelect1(loadAirportStmt);
710 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
711 reset(loadAirportStmt);
713 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
716 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
717 const string& id, const SGGeod& pos, PositionedID apt)
719 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
720 execSelect1(loadRunwayStmt);
722 double heading = sqlite3_column_double(loadRunwayStmt, 0);
723 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
724 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
725 int surface = sqlite3_column_int(loadRunwayStmt, 3);
727 if (ty == FGPositioned::TAXIWAY) {
728 reset(loadRunwayStmt);
729 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
730 } else if (ty == FGPositioned::HELIPAD) {
731 reset(loadRunwayStmt);
732 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
734 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
735 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
736 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
737 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
738 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
739 displacedThreshold, stopway, surface);
741 if (reciprocal > 0) {
742 r->setReciprocalRunway(reciprocal);
749 reset(loadRunwayStmt);
754 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
755 const string& id, const string& name,
757 PositionedID airport)
759 sqlite3_bind_int64(loadCommStation, 1, rowId);
760 execSelect1(loadCommStation);
762 int range = sqlite3_column_int(loadCommStation, 0);
763 int freqKhz = sqlite3_column_int(loadCommStation, 1);
764 reset(loadCommStation);
766 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
767 c->setAirport(airport);
771 FGPositioned* loadNav(sqlite3_int64 rowId,
772 FGPositioned::Type ty, const string& id,
773 const string& name, const SGGeod& pos)
775 sqlite3_bind_int64(loadNavaid, 1, rowId);
776 execSelect1(loadNavaid);
778 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
779 // marker beacons are light-weight
780 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
781 (ty == FGPositioned::MM))
784 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
787 int rangeNm = sqlite3_column_int(loadNavaid, 0),
788 freq = sqlite3_column_int(loadNavaid, 1);
789 double mulituse = sqlite3_column_double(loadNavaid, 2);
790 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
793 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
796 FGPositioned* loadParking(sqlite3_int64 rowId,
797 const string& name, const SGGeod& pos,
798 PositionedID airport)
800 sqlite3_bind_int64(loadParkingPos, 1, rowId);
801 execSelect1(loadParkingPos);
803 double heading = sqlite3_column_double(loadParkingPos, 0);
804 int radius = sqlite3_column_int(loadParkingPos, 1);
805 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
806 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
807 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
808 reset(loadParkingPos);
810 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
813 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
814 PositionedID airport)
816 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
817 execSelect1(loadTaxiNodeStmt);
819 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
820 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
821 reset(loadTaxiNodeStmt);
823 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
826 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
827 const string& name, const SGGeod& pos, PositionedID apt,
830 SGVec3d cartPos(SGVec3d::fromGeod(pos));
832 sqlite3_bind_int(insertPositionedQuery, 1, ty);
833 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
834 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
835 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
836 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
837 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
838 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
841 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
842 assert(intersects(octreeLeaf->bbox(), cartPos));
843 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
845 sqlite3_bind_null(insertPositionedQuery, 8);
848 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
849 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
850 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
852 PositionedID r = execInsert(insertPositionedQuery);
856 FGPositioned::List findAllByString(const string& s, const string& column,
857 FGPositioned::Filter* filter, bool exact)
860 if (!exact) query += "%";
862 // build up SQL query text
863 string matchTerm = exact ? "=?1" : " LIKE ?1";
864 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
866 sql += " " AND_TYPED;
869 // find or prepare a suitable statement frrm the SQL
870 sqlite3_stmt_ptr stmt = findByStringDict[sql];
873 findByStringDict[sql] = stmt;
876 sqlite_bind_stdstring(stmt, 1, query);
878 sqlite3_bind_int(stmt, 2, filter->minType());
879 sqlite3_bind_int(stmt, 3, filter->maxType());
882 FGPositioned::List result;
883 // run the prepared SQL
884 while (stepSelect(stmt))
886 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
887 if (filter && !filter->pass(pos)) {
891 result.push_back(pos);
898 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
900 PositionedIDVec result;
901 while (stepSelect(query)) {
902 result.push_back(sqlite3_column_int64(query, 0));
908 double runwayLengthFt(PositionedID rwy)
910 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
911 execSelect1(runwayLengthFtQuery);
912 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
913 reset(runwayLengthFtQuery);
917 void flushDeferredOctreeUpdates()
919 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
920 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
921 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
922 execUpdate(updateOctreeChildren);
925 deferredOctreeUpdates.clear();
928 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
930 sqlite3_bind_int(removePOIQuery, 1, ty);
931 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
932 execUpdate(removePOIQuery);
933 reset(removePOIQuery);
940 /// the actual cache of ID -> instances. This holds an owning reference,
941 /// so once items are in the cache they will never be deleted until
942 /// the cache drops its reference
943 PositionedCache cache;
944 unsigned int cacheHits, cacheMisses;
947 * record the levels of open transaction objects we have
949 unsigned int transactionLevel;
950 bool transactionAborted;
951 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
953 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
954 carrierDatPath, airwayDatPath;
956 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
957 stampFileCache, statCacheCheck,
958 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
960 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
962 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
963 insertCommStation, insertNavaid;
964 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
965 setAirportPos, updateRunwayThreshold, updateILS;
966 sqlite3_stmt_ptr removePOIQuery;
968 sqlite3_stmt_ptr findClosestWithIdent;
969 // octree (spatial index) related queries
970 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
971 getOctreeLeafChildren;
973 sqlite3_stmt_ptr searchAirports;
974 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
975 findNavsByFreqNoPos, findNavaidForRunway;
976 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
977 sqlite3_stmt_ptr findAirportRunway,
980 sqlite3_stmt_ptr runwayLengthFtQuery;
983 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
986 // groundnet (parking, taxi node graph)
987 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
988 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
989 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
990 setParkingPushBack, findNearestRunwayTaxiNode;
992 // since there's many permutations of ident/name queries, we create
993 // them programtically, but cache the exact query by its raw SQL once
995 std::map<string, sqlite3_stmt_ptr> findByStringDict;
997 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
1000 std::set<Octree::Branch*> deferredOctreeUpdates;
1002 // if we're performing a rebuild, the thread that is doing the work.
1004 std::auto_ptr<RebuildThread> rebuilder;
1007 //////////////////////////////////////////////////////////////////////
1009 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
1012 sqlite3_bind_int64(loadPositioned, 1, rowid);
1013 execSelect1(loadPositioned);
1015 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
1016 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
1018 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
1019 string name = (char*) sqlite3_column_text(loadPositioned, 3);
1020 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
1021 double lon = sqlite3_column_double(loadPositioned, 5);
1022 double lat = sqlite3_column_double(loadPositioned, 6);
1023 double elev = sqlite3_column_double(loadPositioned, 7);
1024 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1026 reset(loadPositioned);
1029 case FGPositioned::AIRPORT:
1030 case FGPositioned::SEAPORT:
1031 case FGPositioned::HELIPORT:
1032 return loadAirport(rowid, ty, ident, name, pos);
1034 case FGPositioned::TOWER:
1035 return new AirportTower(rowid, aptId, ident, pos);
1037 case FGPositioned::RUNWAY:
1038 case FGPositioned::HELIPAD:
1039 case FGPositioned::TAXIWAY:
1040 return loadRunway(rowid, ty, ident, pos, aptId);
1042 case FGPositioned::LOC:
1043 case FGPositioned::VOR:
1044 case FGPositioned::GS:
1045 case FGPositioned::ILS:
1046 case FGPositioned::NDB:
1047 case FGPositioned::OM:
1048 case FGPositioned::MM:
1049 case FGPositioned::IM:
1050 case FGPositioned::DME:
1051 case FGPositioned::TACAN:
1052 case FGPositioned::MOBILE_TACAN:
1055 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
1056 if (apt->validateILSData()) {
1057 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1058 // queried data above is probably invalid, force us to go around again
1059 // (the next time through, validateILSData will return false)
1060 return outer->loadById(rowid);
1064 return loadNav(rowid, ty, ident, name, pos);
1067 case FGPositioned::FIX:
1068 return new FGFix(rowid, ident, pos);
1070 case FGPositioned::WAYPOINT:
1071 case FGPositioned::COUNTRY:
1072 case FGPositioned::CITY:
1073 case FGPositioned::TOWN:
1074 case FGPositioned::VILLAGE:
1076 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1080 case FGPositioned::FREQ_GROUND:
1081 case FGPositioned::FREQ_TOWER:
1082 case FGPositioned::FREQ_ATIS:
1083 case FGPositioned::FREQ_AWOS:
1084 case FGPositioned::FREQ_APP_DEP:
1085 case FGPositioned::FREQ_ENROUTE:
1086 case FGPositioned::FREQ_CLEARANCE:
1087 case FGPositioned::FREQ_UNICOM:
1088 return loadComm(rowid, ty, ident, name, pos, aptId);
1090 case FGPositioned::TAXI_NODE:
1091 return loadTaxiNode(rowid, pos, aptId);
1093 case FGPositioned::PARKING:
1094 return loadParking(rowid, ident, pos, aptId);
1102 static NavDataCache* static_instance = NULL;
1104 NavDataCache::NavDataCache()
1106 const int MAX_TRIES = 3;
1107 SGPath homePath(globals->get_fg_home());
1109 std::ostringstream os;
1110 string_list versionParts = simgear::strutils::split(VERSION, ".");
1111 if (versionParts.size() < 2) {
1112 os << "navdata.cache";
1114 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1117 homePath.append(os.str());
1119 for (int t=0; t < MAX_TRIES; ++t) {
1121 d.reset(new NavDataCachePrivate(homePath, this));
1123 //d->checkCacheFile();
1124 // reached this point with no exception, success
1126 } catch (sg_exception& e) {
1127 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1128 << " (attempt " << t << ")");
1134 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1135 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1136 Octree::global_spatialOctree =
1137 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1139 d->aptDatPath = SGPath(globals->get_fg_root());
1140 d->aptDatPath.append("Airports/apt.dat.gz");
1142 d->metarDatPath = SGPath(globals->get_fg_root());
1143 d->metarDatPath.append("Airports/metar.dat.gz");
1145 d->navDatPath = SGPath(globals->get_fg_root());
1146 d->navDatPath.append("Navaids/nav.dat.gz");
1148 d->fixDatPath = SGPath(globals->get_fg_root());
1149 d->fixDatPath.append("Navaids/fix.dat.gz");
1151 d->poiDatPath = SGPath(globals->get_fg_root());
1152 d->poiDatPath.append("Navaids/poi.dat.gz");
1154 d->carrierDatPath = SGPath(globals->get_fg_root());
1155 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1157 d->airwayDatPath = SGPath(globals->get_fg_root());
1158 d->airwayDatPath.append("Navaids/awy.dat.gz");
1161 NavDataCache::~NavDataCache()
1163 assert(static_instance == this);
1164 static_instance = NULL;
1165 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1169 NavDataCache* NavDataCache::instance()
1171 if (!static_instance) {
1172 static_instance = new NavDataCache;
1175 return static_instance;
1178 bool NavDataCache::isRebuildRequired()
1180 if (isCachedFileModified(d->aptDatPath) ||
1181 isCachedFileModified(d->metarDatPath) ||
1182 isCachedFileModified(d->navDatPath) ||
1183 isCachedFileModified(d->fixDatPath) ||
1184 isCachedFileModified(d->poiDatPath) ||
1185 isCachedFileModified(d->airwayDatPath))
1187 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1191 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1192 if (readStringProperty("scenery_paths") != sceneryPaths) {
1193 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1197 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1201 bool NavDataCache::rebuild()
1203 if (!d->rebuilder.get()) {
1204 d->rebuilder.reset(new RebuildThread(this));
1205 d->rebuilder->start();
1208 // poll the rebuild thread
1209 bool fin = d->rebuilder->isFinished();
1211 d->rebuilder.reset(); // all done!
1216 void NavDataCache::doRebuild()
1219 d->close(); // completely close the sqlite object
1220 d->path.remove(); // remove the file on disk
1221 d->init(); // star again from scratch
1223 Transaction txn(this);
1224 // initialise the root octree node
1225 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1230 airportDBLoad(d->aptDatPath);
1231 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1233 metarDataLoad(d->metarDatPath);
1234 stampCacheFile(d->aptDatPath);
1235 stampCacheFile(d->metarDatPath);
1238 loadFixes(d->fixDatPath);
1239 stampCacheFile(d->fixDatPath);
1240 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1243 navDBInit(d->navDatPath);
1244 stampCacheFile(d->navDatPath);
1245 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1248 poiDBInit(d->poiDatPath);
1249 stampCacheFile(d->poiDatPath);
1250 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1252 loadCarrierNav(d->carrierDatPath);
1253 stampCacheFile(d->carrierDatPath);
1256 Airway::load(d->airwayDatPath);
1257 stampCacheFile(d->airwayDatPath);
1258 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1260 d->flushDeferredOctreeUpdates();
1262 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1263 writeStringProperty("scenery_paths", sceneryPaths);
1266 } catch (sg_exception& e) {
1267 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1271 int NavDataCache::readIntProperty(const string& key)
1273 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1276 if (d->execSelect(d->readPropertyQuery)) {
1277 result = sqlite3_column_int(d->readPropertyQuery, 0);
1279 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1282 d->reset(d->readPropertyQuery);
1286 double NavDataCache::readDoubleProperty(const string& key)
1288 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1289 double result = 0.0;
1290 if (d->execSelect(d->readPropertyQuery)) {
1291 result = sqlite3_column_double(d->readPropertyQuery, 0);
1293 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1296 d->reset(d->readPropertyQuery);
1300 string NavDataCache::readStringProperty(const string& key)
1302 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1304 if (d->execSelect(d->readPropertyQuery)) {
1305 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1307 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1310 d->reset(d->readPropertyQuery);
1314 void NavDataCache::writeIntProperty(const string& key, int value)
1316 d->writeIntProperty(key, value);
1319 void NavDataCache::writeStringProperty(const string& key, const string& value)
1321 sqlite_bind_stdstring(d->clearProperty, 1, key);
1322 d->execUpdate(d->clearProperty);
1324 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1325 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1326 d->execUpdate(d->writePropertyQuery);
1329 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1331 sqlite_bind_stdstring(d->clearProperty, 1, key);
1332 d->execUpdate(d->clearProperty);
1334 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1335 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1336 d->execUpdate(d->writePropertyQuery);
1339 string_list NavDataCache::readStringListProperty(const string& key)
1341 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1343 while (d->stepSelect(d->readPropertyQuery)) {
1344 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1346 d->reset(d->readPropertyQuery);
1351 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1353 sqlite_bind_stdstring(d->clearProperty, 1, key);
1354 d->execUpdate(d->clearProperty);
1356 BOOST_FOREACH(string value, values) {
1357 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1358 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1359 d->execInsert(d->writePropertyMulti);
1363 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1365 if (!path.exists()) {
1366 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1369 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1370 bool isModified = true;
1372 if (d->execSelect(d->statCacheCheck)) {
1373 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1374 time_t delta = std::labs(modtime - path.modTime());
1377 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1380 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1381 // and then changed file again within x seconds - so it's suspicious...
1382 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1383 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1388 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1391 isModified = (delta != 0);
1393 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1396 d->reset(d->statCacheCheck);
1400 void NavDataCache::stampCacheFile(const SGPath& path)
1402 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1403 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1404 d->execInsert(d->stampFileCache);
1407 void NavDataCache::beginTransaction()
1409 if (d->transactionLevel == 0) {
1410 d->transactionAborted = false;
1411 d->stepSelect(d->beginTransactionStmt);
1412 sqlite3_reset(d->beginTransactionStmt);
1415 ++d->transactionLevel;
1418 void NavDataCache::commitTransaction()
1420 assert(d->transactionLevel > 0);
1421 if (--d->transactionLevel == 0) {
1422 // if a nested transaction aborted, we might end up here, but must
1423 // still abort the entire transaction. That's bad, but safer than
1425 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1429 while (retries < MAX_RETRIES) {
1430 result = sqlite3_step(q);
1431 if (result == SQLITE_DONE) {
1435 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1436 // what's going on here: autocommit in inactive inside BEGIN, so if
1437 // it's active, the DB was rolled-back
1438 if (sqlite3_get_autocommit(d->db)) {
1439 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1440 d->transactionAborted = true;
1444 if (result != SQLITE_BUSY) {
1448 SGTimeStamp::sleepForMSec(++retries * 10);
1449 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1450 } // of retry loop for DB busy
1453 if (result != SQLITE_DONE) {
1454 errMsg = sqlite3_errmsg(d->db);
1455 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1456 << " while running:\n\t" << sqlite3_sql(q));
1463 void NavDataCache::abortTransaction()
1465 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1467 assert(d->transactionLevel > 0);
1468 if (--d->transactionLevel == 0) {
1469 d->stepSelect(d->rollbackTransactionStmt);
1470 sqlite3_reset(d->rollbackTransactionStmt);
1473 d->transactionAborted = true;
1476 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1482 PositionedCache::iterator it = d->cache.find(rowid);
1483 if (it != d->cache.end()) {
1485 return it->second; // cache it
1488 FGPositioned* pos = d->loadById(rowid);
1489 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1494 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1497 // airports have their pos computed based on the avergae runway centres
1498 // so the pos isn't available immediately. Pass a dummy pos and avoid
1499 // doing spatial indexing until later
1500 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1502 false /* spatial index */);
1504 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1505 d->execInsert(d->insertAirport);
1510 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1512 if (d->cache.find(item) != d->cache.end()) {
1513 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1514 d->cache[item]->modifyPosition(pos);
1517 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1519 sqlite3_bind_int(d->setAirportPos, 1, item);
1520 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1521 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1522 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1524 // bug 905; the octree leaf may change here, but the leaf may already be
1525 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1526 // we may be called here as a result of loading one of those leaf's children.
1527 // instead of dealing with all those possibilites, such as modifying
1528 // the in-memory leaf's STL child container, we simply leave the runtime
1529 // structures alone. This is fine providing items do no move very far, since
1530 // all the spatial searches ultimately use the items' real cartesian position,
1531 // which was updated above.
1532 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1533 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1535 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1536 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1537 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1540 d->execUpdate(d->setAirportPos);
1543 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1545 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1546 pos, airportId, true /* spatial index */);
1550 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1551 const SGGeod& pos, PositionedID apt,
1552 double heading, double length, double width, double displacedThreshold,
1553 double stopway, int surfaceCode)
1555 // only runways are spatially indexed; don't bother indexing taxiways
1557 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1559 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1561 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1562 sqlite3_bind_double(d->insertRunway, 2, heading);
1563 sqlite3_bind_double(d->insertRunway, 3, length);
1564 sqlite3_bind_double(d->insertRunway, 4, width);
1565 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1566 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1567 sqlite3_bind_double(d->insertRunway, 7, stopway);
1569 return d->execInsert(d->insertRunway);
1572 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1574 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1575 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1576 d->execUpdate(d->setRunwayReciprocal);
1578 // and the opposite direction too!
1579 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1580 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1581 d->execUpdate(d->setRunwayReciprocal);
1584 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1586 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1587 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1588 d->execUpdate(d->setRunwayILS);
1590 // and the in-memory one
1591 if (d->cache.find(runway) != d->cache.end()) {
1592 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1593 instance->setILS(ils);
1597 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1598 double aHeading, double aDisplacedThreshold,
1601 // update the runway information
1602 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1603 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1604 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1605 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1606 d->execUpdate(d->updateRunwayThreshold);
1608 // now update the positional data
1609 updatePosition(runwayID, aThreshold);
1613 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1614 const string& name, const SGGeod& pos,
1615 int freq, int range, double multiuse,
1616 PositionedID apt, PositionedID runway)
1618 bool spatialIndex = true;
1619 if (ty == FGPositioned::MOBILE_TACAN) {
1620 spatialIndex = false;
1623 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1625 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1626 sqlite3_bind_int(d->insertNavaid, 2, freq);
1627 sqlite3_bind_int(d->insertNavaid, 3, range);
1628 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1629 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1630 return d->execInsert(d->insertNavaid);
1633 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1635 sqlite3_bind_int64(d->updateILS, 1, ils);
1636 sqlite3_bind_double(d->updateILS, 2, aHdg);
1637 d->execUpdate(d->updateILS);
1638 updatePosition(ils, newPos);
1641 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1642 const string& name, const SGGeod& pos, int freq, int range,
1645 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1646 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1647 sqlite3_bind_int(d->insertCommStation, 2, freq);
1648 sqlite3_bind_int(d->insertCommStation, 3, range);
1649 return d->execInsert(d->insertCommStation);
1652 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1654 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1657 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1659 return d->insertPositioned(ty, ident, string(), aPos, 0,
1660 true /* spatial index */);
1663 void NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1665 d->removePositionedWithIdent(ty, aIdent);
1666 // should remove from the live cache too?
1669 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1671 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1672 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1673 d->execUpdate(d->setAirportMetar);
1676 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1677 FGPositioned::Filter* filter, bool exact)
1679 return d->findAllByString(s, "ident", filter, exact);
1682 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1683 FGPositioned::Filter* filter, bool exact)
1685 return d->findAllByString(s, "name", filter, exact);
1688 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1689 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1691 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1693 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1694 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1695 } else { // full type range
1696 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1697 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1700 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1701 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1702 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1703 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1705 FGPositionedRef result;
1707 while (d->stepSelect(d->findClosestWithIdent)) {
1708 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1709 if (aFilter && !aFilter->pass(pos)) {
1717 d->reset(d->findClosestWithIdent);
1722 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1724 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1725 d->execSelect1(d->getOctreeChildren);
1726 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1727 d->reset(d->getOctreeChildren);
1731 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1733 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1734 d->execInsert(d->insertOctree);
1736 #ifdef LAZY_OCTREE_UPDATES
1737 d->deferredOctreeUpdates.insert(pr);
1739 // lowest three bits of node ID are 0..7 index of the child in the parent
1740 int childIndex = nd->guid() & 0x07;
1742 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1743 // mask has bit N set where child N exists
1744 int childMask = 1 << childIndex;
1745 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1746 d->execUpdate(d->updateOctreeChildren);
1751 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1753 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1755 TypedPositionedVec r;
1756 while (d->stepSelect(d->getOctreeLeafChildren)) {
1757 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1758 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1759 r.push_back(std::make_pair(ty,
1760 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1763 d->reset(d->getOctreeLeafChildren);
1769 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1770 * implement the AirportList dialog. It's unfortunate that it needs to reside
1771 * here, but for now it's least ugly solution.
1773 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1775 string s = "%" + aFilter + "%";
1776 sqlite_bind_stdstring(d->searchAirports, 1, s);
1778 unsigned int numMatches = 0, numAllocated = 16;
1779 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1781 while (d->stepSelect(d->searchAirports)) {
1782 if ((numMatches + 1) >= numAllocated) {
1783 numAllocated <<= 1; // double in size!
1784 // reallocate results array
1785 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1786 memcpy(nresult, result, sizeof(char*) * numMatches);
1791 // nasty code to avoid excessive string copying and allocations.
1792 // We format results as follows (note whitespace!):
1793 // ' name-of-airport-chars (ident)'
1794 // so the total length is:
1795 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1796 // which gives a grand total of 7 + name-length + icao-length.
1797 // note the ident can be three letters (non-ICAO local strip), four
1798 // (default ICAO) or more (extended format ICAO)
1799 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1800 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1801 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1804 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1810 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1815 result[numMatches++] = entry;
1818 result[numMatches] = NULL; // end of list marker
1819 d->reset(d->searchAirports);
1824 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1826 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1828 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1829 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1830 } else { // full type range
1831 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1832 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1835 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1836 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1837 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1838 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1839 FGPositionedRef result;
1841 while (d->execSelect(d->findCommByFreq)) {
1842 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1843 if (aFilter && !aFilter->pass(p)) {
1851 d->reset(d->findCommByFreq);
1856 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1858 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1860 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1861 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1862 } else { // full type range
1863 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1864 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1867 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1868 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1869 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1870 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1872 return d->selectIds(d->findNavsByFreq);
1876 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1878 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1880 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1881 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1882 } else { // full type range
1883 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1884 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1887 return d->selectIds(d->findNavsByFreqNoPos);
1891 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1892 FGPositioned::Type maxTy)
1894 if (maxTy == FGPositioned::INVALID) {
1895 maxTy = ty; // single-type range
1898 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1899 sqlite3_bind_int(d->getAirportItems, 2, ty);
1900 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1902 return d->selectIds(d->getAirportItems);
1906 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1907 const std::string& ident)
1909 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1910 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1911 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1912 PositionedID result = 0;
1914 if (d->execSelect(d->getAirportItemByIdent)) {
1915 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1918 d->reset(d->getAirportItemByIdent);
1923 NavDataCache::findAirportRunway(const std::string& aName)
1925 if (aName.empty()) {
1926 return AirportRunwayPair();
1929 string_list parts = simgear::strutils::split(aName);
1930 if (parts.size() < 2) {
1931 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1932 return AirportRunwayPair();
1935 AirportRunwayPair result;
1936 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1937 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1939 if (d->execSelect(d->findAirportRunway)) {
1940 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1941 sqlite3_column_int64(d->findAirportRunway, 1));
1944 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1947 d->reset(d->findAirportRunway);
1952 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1954 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1955 sqlite3_bind_int64(d->findILS, 2, airport);
1956 sqlite_bind_stdstring(d->findILS, 3, runway);
1957 PositionedID result = 0;
1958 if (d->execSelect(d->findILS)) {
1959 result = sqlite3_column_int64(d->findILS, 0);
1962 d->reset(d->findILS);
1966 int NavDataCache::findAirway(int network, const string& aName)
1968 sqlite3_bind_int(d->findAirway, 1, network);
1969 sqlite_bind_stdstring(d->findAirway, 2, aName);
1972 if (d->execSelect(d->findAirway)) {
1974 airway = sqlite3_column_int(d->findAirway, 0);
1976 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1977 sqlite3_bind_int(d->insertAirway, 2, network);
1978 airway = d->execInsert(d->insertAirway);
1981 d->reset(d->findAirway);
1985 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1987 // assume all edges are bidirectional for the moment
1988 for (int i=0; i<2; ++i) {
1989 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1990 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1991 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1992 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1993 d->execInsert(d->insertAirwayEdge);
1995 std::swap(from, to);
1999 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
2001 sqlite3_bind_int(d->isPosInAirway, 1, network);
2002 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
2003 bool ok = d->execSelect(d->isPosInAirway);
2004 d->reset(d->isPosInAirway);
2009 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
2011 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
2012 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
2014 AirwayEdgeVec result;
2015 while (d->stepSelect(d->airwayEdgesFrom)) {
2016 result.push_back(AirwayEdge(
2017 sqlite3_column_int(d->airwayEdgesFrom, 0),
2018 sqlite3_column_int64(d->airwayEdgesFrom, 1)
2022 d->reset(d->airwayEdgesFrom);
2026 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2028 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2029 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2031 PositionedID result = 0;
2032 if (d->execSelect(d->findNavaidForRunway)) {
2033 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2036 d->reset(d->findNavaidForRunway);
2041 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2042 PositionedID aAirport,
2043 double aHeading, int aRadius, const std::string& aAircraftType,
2044 const std::string& aAirlines)
2046 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2048 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2049 // the appropriate pushback flag.
2050 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2051 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2052 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2053 d->execInsert(d->insertTaxiNode);
2055 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2056 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2057 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2058 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2059 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2060 return d->execInsert(d->insertParkingPos);
2063 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2065 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2066 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2067 d->execUpdate(d->setParkingPushBack);
2071 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2073 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2074 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2075 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2076 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2077 return d->execInsert(d->insertTaxiNode);
2080 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2082 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2083 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2084 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2085 d->execInsert(d->insertTaxiEdge);
2088 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2090 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2091 sqlite3_bind_int64(q, 1, aAirport);
2092 return d->selectIds(q);
2095 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2097 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2098 d->execUpdate(d->markTaxiNodeAsPushback);
2101 static double headingDifferenceDeg(double crs1, double crs2)
2103 double diff = crs2 - crs1;
2104 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2108 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2109 bool onRunway, FGRunway* aRunway)
2111 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2112 sqlite3_bind_int64(q, 1, airport);
2114 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2115 sqlite3_bind_double(q, 2, cartPos.x());
2116 sqlite3_bind_double(q, 3, cartPos.y());
2117 sqlite3_bind_double(q, 4, cartPos.z());
2119 PositionedID result = 0;
2120 while (d->execSelect(q)) {
2121 PositionedID id = sqlite3_column_int64(q, 0);
2127 // ensure found node lies on the runway
2128 FGPositionedRef node = loadById(id);
2129 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2130 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2140 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2142 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2143 sqlite3_bind_int64(q, 1, pos);
2144 return d->selectIds(q);
2147 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2150 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2151 sqlite3_bind_int(d->findAirportParking, 2, radius);
2152 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2154 return d->selectIds(d->findAirportParking);
2157 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2159 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2160 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2161 sqlite3_bind_int64(q, 2, aAirport);
2164 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2165 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2166 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2167 sqlite3_bind_int64(q, 3, aAirport);
2170 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2171 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2172 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2173 sqlite3_bind_int64(q, 3, aAirport);
2176 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2177 sqlite3_bind_int64(q, 1, aAirport);
2181 /////////////////////////////////////////////////////////////////////////////////////////
2182 // Transaction RAII object
2184 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2189 _instance->beginTransaction();
2192 NavDataCache::Transaction::~Transaction()
2195 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2196 _instance->abortTransaction();
2200 void NavDataCache::Transaction::commit()
2202 assert(!_committed);
2204 _instance->commitTransaction();
2207 } // of namespace flightgear