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/sg_inlines.h>
44 #include <simgear/structure/exception.hxx>
45 #include <simgear/debug/logstream.hxx>
46 #include <simgear/bucket/newbucket.hxx>
47 #include <simgear/misc/sg_path.hxx>
48 #include <simgear/misc/strutils.hxx>
49 #include <simgear/threads/SGThread.hxx>
50 #include <simgear/threads/SGGuard.hxx>
52 #include <Main/globals.hxx>
53 #include "markerbeacon.hxx"
54 #include "navrecord.hxx"
55 #include <Airports/airport.hxx>
56 #include <Airports/runways.hxx>
57 #include <ATC/CommStation.hxx>
59 #include <Navaids/fixlist.hxx>
60 #include <Navaids/navdb.hxx>
61 #include "PositionedOctree.hxx"
62 #include <Airports/apt_loader.hxx>
63 #include <Navaids/airways.hxx>
65 #include <Airports/parking.hxx>
66 #include <Airports/gnnode.hxx>
70 #define SG_NAVCACHE SG_NAVAID
71 //#define LAZY_OCTREE_UPDATES 1
75 const int MAX_RETRIES = 10;
76 const int SCHEMA_VERSION = 8;
77 const int CACHE_SIZE_KBYTES= 16000;
79 // bind a std::string to a sqlite statement. The std::string must live the
80 // entire duration of the statement execution - do not pass a temporary
81 // std::string, or the compiler may delete it, freeing the C-string storage,
82 // and causing subtle memory corruption bugs!
83 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
85 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
88 // variant of the above, which does not care about the lifetime of the
90 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
92 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
95 typedef sqlite3_stmt* sqlite3_stmt_ptr;
97 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
103 SGVec3d posA(sqlite3_value_double(argv[0]),
104 sqlite3_value_double(argv[1]),
105 sqlite3_value_double(argv[2]));
107 SGVec3d posB(sqlite3_value_double(argv[3]),
108 sqlite3_value_double(argv[4]),
109 sqlite3_value_double(argv[5]));
110 sqlite3_result_double(ctx, distSqr(posA, posB));
114 static string cleanRunwayNo(const string& aRwyNo)
116 if (aRwyNo[0] == 'x') {
117 return string(); // no ident for taxiways
120 string result(aRwyNo);
121 // canonicalise runway ident
122 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
123 result = "0" + aRwyNo;
126 // trim off trailing garbage
127 if (result.size() > 2) {
128 char suffix = toupper(result[2]);
130 result = result.substr(0, 2);
137 } // anonymous namespace
143 * Thread encapsulating a cache rebuild. This is not used to parallelise
144 * the rebuild - we must still wait until completion before doing other
145 * startup, since many things rely on a complete cache. The thread is used
146 * so we don't block the main event loop for an unacceptable duration,
147 * which causes 'not responding' / spinning beachballs on Windows & Mac
149 class RebuildThread : public SGThread
152 RebuildThread(NavDataCache* cache) :
159 bool isFinished() const
161 SGGuard<SGMutex> g(_lock);
170 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
172 SGGuard<SGMutex> g(_lock);
176 NavDataCache* _cache;
177 mutable SGMutex _lock;
181 ////////////////////////////////////////////////////////////////////////////
183 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
185 class AirportTower : public FGPositioned
188 AirportTower(PositionedID& guid, PositionedID airport,
189 const string& ident, const SGGeod& pos) :
190 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
195 class NavDataCache::NavDataCachePrivate
198 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
205 transactionAborted(false)
209 ~NavDataCachePrivate()
216 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
218 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
219 // for the logic here. Sigh.
220 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
221 sqlite3_open_v2(pathUtf8.c_str(), &db,
222 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
225 sqlite3_stmt_ptr checkTables =
226 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
228 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
229 f_distanceCartSqrFunction, NULL, NULL);
231 execSelect(checkTables);
232 bool didCreate = false;
233 if (sqlite3_column_int(checkTables, 0) == 0) {
234 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
239 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
240 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
241 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
244 writeIntProperty("schema-version", SCHEMA_VERSION);
246 int schemaVersion = outer->readIntProperty("schema-version");
247 if (schemaVersion != SCHEMA_VERSION) {
248 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
249 throw sg_exception("Navcache schema has changed");
253 // see http://www.sqlite.org/pragma.html#pragma_cache_size
254 // for the details, small cache would cause thrashing.
255 std::ostringstream q;
256 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
263 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
264 sqlite3_finalize(stmt);
270 void checkCacheFile()
272 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
276 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
277 if (!execSelect(stmt)) {
278 throw sg_exception("DB integrity check failed to run");
281 string v = (char*) sqlite3_column_text(stmt, 0);
283 throw sg_exception("DB integrity check returned:" + v);
286 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
290 void callSqlite(int result, const string& sql)
292 if (result == SQLITE_OK)
296 if (result == SQLITE_MISUSE) {
297 errMsg = "Sqlite API abuse";
298 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
300 errMsg = sqlite3_errmsg(db);
301 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
304 throw sg_exception("Sqlite error:" + errMsg, sql);
307 void runSQL(const string& sql)
309 sqlite3_stmt_ptr stmt;
310 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
314 } catch (sg_exception&) {
315 sqlite3_finalize(stmt);
319 sqlite3_finalize(stmt);
322 sqlite3_stmt_ptr prepare(const string& sql)
324 sqlite3_stmt_ptr stmt;
325 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
326 prepared.push_back(stmt);
330 void finalize(sqlite3_stmt_ptr s)
332 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
333 if (it == prepared.end()) {
334 throw sg_exception("Finalising statement that was not prepared");
341 void reset(sqlite3_stmt_ptr stmt)
344 if (sqlite3_reset(stmt) != SQLITE_OK) {
345 string errMsg = sqlite3_errmsg(db);
346 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
347 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
351 bool execSelect(sqlite3_stmt_ptr stmt)
353 return stepSelect(stmt);
356 bool stepSelect(sqlite3_stmt_ptr stmt)
360 while (retries < MAX_RETRIES) {
361 result = sqlite3_step(stmt);
362 if (result == SQLITE_ROW) {
363 return true; // at least one result row
366 if (result == SQLITE_DONE) {
367 return false; // no result rows
370 if (result != SQLITE_BUSY) {
374 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
375 SGTimeStamp::sleepForMSec(++retries * 10);
376 } // of retry loop for DB locked
378 if (retries >= MAX_RETRIES) {
379 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
384 if (result == SQLITE_MISUSE) {
385 errMsg = "Sqlite API abuse";
386 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
388 errMsg = sqlite3_errmsg(db);
389 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
390 << ") while running:\n\t" << sqlite3_sql(stmt));
393 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
396 void execSelect1(sqlite3_stmt_ptr stmt)
398 if (!execSelect(stmt)) {
399 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
400 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
404 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
407 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
412 void execUpdate(sqlite3_stmt_ptr stmt)
420 runSQL("CREATE TABLE properties ("
425 runSQL("CREATE TABLE stat_cache ("
426 "path VARCHAR unique,"
430 runSQL("CREATE TABLE positioned ("
432 "ident VARCHAR collate nocase,"
433 "name VARCHAR collate nocase,"
444 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
445 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
446 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
447 // allow efficient querying of 'all ATIS at this airport' or
448 // 'all towers at this airport'
449 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
451 runSQL("CREATE TABLE airport ("
456 runSQL("CREATE TABLE comm ("
462 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
464 runSQL("CREATE TABLE runway ("
469 "displaced_threshold FLOAT,"
476 runSQL("CREATE TABLE navaid ("
485 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
487 runSQL("CREATE TABLE octree (children INT)");
489 runSQL("CREATE TABLE airway ("
490 "ident VARCHAR collate nocase,"
491 "network INT" // high-level or low-level
494 runSQL("CREATE INDEX airway_ident ON airway(ident)");
496 runSQL("CREATE TABLE airway_edge ("
503 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
505 runSQL("CREATE TABLE taxi_node ("
511 runSQL("CREATE TABLE parking ("
519 runSQL("CREATE TABLE groundnet_edge ("
525 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
526 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
529 void prepareQueries()
531 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
533 beginTransactionStmt = prepare("BEGIN");
534 commitTransactionStmt = prepare("COMMIT");
535 rollbackTransactionStmt = prepare("ROLLBACK");
538 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
539 #define AND_TYPED "AND type>=?2 AND type <=?3"
540 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
541 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
542 "(path, stamp) VALUES (?,?)");
544 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
545 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
546 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
547 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
548 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
549 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
551 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
554 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
555 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
556 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
557 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
559 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
560 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
561 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
562 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
564 insertPositionedQuery = prepare("INSERT INTO positioned "
565 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
566 "cart_x, cart_y, cart_z)"
567 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
569 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
570 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
571 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
572 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
573 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
574 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
576 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
577 " VALUES (?, ?, ?)");
578 insertRunway = prepare("INSERT INTO runway "
579 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
580 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
581 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
583 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
586 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
587 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
589 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
590 "positioned.rowid=comm.rowid AND freq_khz=?1 "
591 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
593 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
594 "positioned.rowid=navaid.rowid "
595 "AND navaid.freq=?1 " AND_TYPED
596 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
598 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
599 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
601 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
602 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
604 // for an octree branch, return the child octree nodes which exist,
605 // described as a bit-mask
606 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
608 #ifdef LAZY_OCTREE_UPDATES
609 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
611 // mask the new child value into the existing one
612 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
615 // define a new octree node (with no children)
616 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
618 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
620 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
621 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
622 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
624 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
626 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
627 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
628 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
629 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
631 // three-way join to get the navaid ident and runway ident in a single select.
632 // we're joining positioned to itself by the navaid runway, with the complication
633 // that we need to join the navaids table to get the runway ID.
634 // we also need to filter by type to excluse glideslope (GS) matches
635 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
636 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
637 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
638 "AND (nav.type=?4 OR nav.type=?5)");
640 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
641 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
644 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
645 insertAirway = prepare("INSERT INTO airway (ident, network) "
648 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
649 "VALUES (?1, ?2, ?3, ?4)");
651 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
653 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
655 // parking / taxi-node graph
656 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
657 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
658 "VALUES (?1, ?2, ?3, ?4, ?5)");
659 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
661 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
662 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
663 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
664 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
665 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
667 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
669 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
670 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
671 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
672 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
674 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
675 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
676 "AND (type=?2 OR type=?3)");
677 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
678 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
680 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
681 "positioned.rowid = taxi_node.rowid AND airport=?1 "
682 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
685 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
686 "positioned.rowid = taxi_node.rowid AND airport=?1 "
688 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
690 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
691 "airport=?1 AND type=?4 AND "
692 "radius >= ?2 AND gate_type = ?3 AND "
693 "parking.rowid=positioned.rowid");
694 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
697 void writeIntProperty(const string& key, int value)
699 sqlite_bind_stdstring(clearProperty, 1, key);
700 execUpdate(clearProperty);
702 sqlite_bind_stdstring(writePropertyQuery, 1, key);
703 sqlite3_bind_int(writePropertyQuery, 2, value);
704 execUpdate(writePropertyQuery);
708 FGPositioned* loadById(sqlite_int64 rowId);
710 FGAirport* loadAirport(sqlite_int64 rowId,
711 FGPositioned::Type ty,
712 const string& id, const string& name, const SGGeod& pos)
714 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
715 execSelect1(loadAirportStmt);
716 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
717 reset(loadAirportStmt);
719 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
722 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
723 const string& id, const SGGeod& pos, PositionedID apt)
725 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
726 execSelect1(loadRunwayStmt);
728 double heading = sqlite3_column_double(loadRunwayStmt, 0);
729 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
730 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
731 int surface = sqlite3_column_int(loadRunwayStmt, 3);
733 if (ty == FGPositioned::TAXIWAY) {
734 reset(loadRunwayStmt);
735 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
736 } else if (ty == FGPositioned::HELIPAD) {
737 reset(loadRunwayStmt);
738 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
740 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
741 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
742 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
743 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
744 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
745 displacedThreshold, stopway, surface);
747 if (reciprocal > 0) {
748 r->setReciprocalRunway(reciprocal);
755 reset(loadRunwayStmt);
760 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
761 const string& id, const string& name,
763 PositionedID airport)
765 sqlite3_bind_int64(loadCommStation, 1, rowId);
766 execSelect1(loadCommStation);
768 int range = sqlite3_column_int(loadCommStation, 0);
769 int freqKhz = sqlite3_column_int(loadCommStation, 1);
770 reset(loadCommStation);
772 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
773 c->setAirport(airport);
777 FGPositioned* loadNav(sqlite3_int64 rowId,
778 FGPositioned::Type ty, const string& id,
779 const string& name, const SGGeod& pos)
781 sqlite3_bind_int64(loadNavaid, 1, rowId);
782 execSelect1(loadNavaid);
784 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
785 // marker beacons are light-weight
786 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
787 (ty == FGPositioned::MM))
790 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
793 int rangeNm = sqlite3_column_int(loadNavaid, 0),
794 freq = sqlite3_column_int(loadNavaid, 1);
795 double mulituse = sqlite3_column_double(loadNavaid, 2);
796 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
799 FGNavRecord* n = new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
801 n->setColocatedDME(colocated);
807 FGPositioned* loadParking(sqlite3_int64 rowId,
808 const string& name, const SGGeod& pos,
809 PositionedID airport)
811 sqlite3_bind_int64(loadParkingPos, 1, rowId);
812 execSelect1(loadParkingPos);
814 double heading = sqlite3_column_double(loadParkingPos, 0);
815 int radius = sqlite3_column_int(loadParkingPos, 1);
816 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
817 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
818 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
819 reset(loadParkingPos);
821 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
824 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
825 PositionedID airport)
827 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
828 execSelect1(loadTaxiNodeStmt);
830 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
831 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
832 reset(loadTaxiNodeStmt);
834 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
837 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
838 const string& name, const SGGeod& pos, PositionedID apt,
841 SGVec3d cartPos(SGVec3d::fromGeod(pos));
843 sqlite3_bind_int(insertPositionedQuery, 1, ty);
844 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
845 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
846 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
847 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
848 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
849 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
852 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
853 assert(intersects(octreeLeaf->bbox(), cartPos));
854 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
856 sqlite3_bind_null(insertPositionedQuery, 8);
859 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
860 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
861 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
863 PositionedID r = execInsert(insertPositionedQuery);
867 FGPositionedList findAllByString(const string& s, const string& column,
868 FGPositioned::Filter* filter, bool exact)
871 if (!exact) query += "%";
873 // build up SQL query text
874 string matchTerm = exact ? "=?1" : " LIKE ?1";
875 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
877 sql += " " AND_TYPED;
880 // find or prepare a suitable statement frrm the SQL
881 sqlite3_stmt_ptr stmt = findByStringDict[sql];
884 findByStringDict[sql] = stmt;
887 sqlite_bind_stdstring(stmt, 1, query);
889 sqlite3_bind_int(stmt, 2, filter->minType());
890 sqlite3_bind_int(stmt, 3, filter->maxType());
893 FGPositionedList result;
894 // run the prepared SQL
895 while (stepSelect(stmt))
897 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
898 if (filter && !filter->pass(pos)) {
902 result.push_back(pos);
909 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
911 PositionedIDVec result;
912 while (stepSelect(query)) {
913 result.push_back(sqlite3_column_int64(query, 0));
919 double runwayLengthFt(PositionedID rwy)
921 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
922 execSelect1(runwayLengthFtQuery);
923 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
924 reset(runwayLengthFtQuery);
928 void flushDeferredOctreeUpdates()
930 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
931 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
932 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
933 execUpdate(updateOctreeChildren);
936 deferredOctreeUpdates.clear();
939 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
941 sqlite3_bind_int(removePOIQuery, 1, ty);
942 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
943 execUpdate(removePOIQuery);
944 reset(removePOIQuery);
951 /// the actual cache of ID -> instances. This holds an owning reference,
952 /// so once items are in the cache they will never be deleted until
953 /// the cache drops its reference
954 PositionedCache cache;
955 unsigned int cacheHits, cacheMisses;
958 * record the levels of open transaction objects we have
960 unsigned int transactionLevel;
961 bool transactionAborted;
962 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
964 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
965 carrierDatPath, airwayDatPath;
967 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
968 stampFileCache, statCacheCheck,
969 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
971 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
973 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
974 insertCommStation, insertNavaid;
975 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
976 setAirportPos, updateRunwayThreshold, updateILS;
977 sqlite3_stmt_ptr removePOIQuery;
979 sqlite3_stmt_ptr findClosestWithIdent;
980 // octree (spatial index) related queries
981 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
982 getOctreeLeafChildren;
984 sqlite3_stmt_ptr searchAirports;
985 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
986 findNavsByFreqNoPos, findNavaidForRunway;
987 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
988 sqlite3_stmt_ptr findAirportRunway,
991 sqlite3_stmt_ptr runwayLengthFtQuery;
994 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
997 // groundnet (parking, taxi node graph)
998 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
999 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
1000 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
1001 setParkingPushBack, findNearestRunwayTaxiNode;
1003 // since there's many permutations of ident/name queries, we create
1004 // them programtically, but cache the exact query by its raw SQL once
1006 std::map<string, sqlite3_stmt_ptr> findByStringDict;
1008 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
1011 std::set<Octree::Branch*> deferredOctreeUpdates;
1013 // if we're performing a rebuild, the thread that is doing the work.
1015 std::auto_ptr<RebuildThread> rebuilder;
1018 //////////////////////////////////////////////////////////////////////
1020 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
1023 sqlite3_bind_int64(loadPositioned, 1, rowid);
1024 execSelect1(loadPositioned);
1026 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
1027 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
1029 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
1030 string name = (char*) sqlite3_column_text(loadPositioned, 3);
1031 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
1032 double lon = sqlite3_column_double(loadPositioned, 5);
1033 double lat = sqlite3_column_double(loadPositioned, 6);
1034 double elev = sqlite3_column_double(loadPositioned, 7);
1035 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1037 reset(loadPositioned);
1040 case FGPositioned::AIRPORT:
1041 case FGPositioned::SEAPORT:
1042 case FGPositioned::HELIPORT:
1043 return loadAirport(rowid, ty, ident, name, pos);
1045 case FGPositioned::TOWER:
1046 return new AirportTower(rowid, aptId, ident, pos);
1048 case FGPositioned::RUNWAY:
1049 case FGPositioned::HELIPAD:
1050 case FGPositioned::TAXIWAY:
1051 return loadRunway(rowid, ty, ident, pos, aptId);
1053 case FGPositioned::LOC:
1054 case FGPositioned::VOR:
1055 case FGPositioned::GS:
1056 case FGPositioned::ILS:
1057 case FGPositioned::NDB:
1058 case FGPositioned::OM:
1059 case FGPositioned::MM:
1060 case FGPositioned::IM:
1061 case FGPositioned::DME:
1062 case FGPositioned::TACAN:
1063 case FGPositioned::MOBILE_TACAN:
1066 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1067 if (apt->validateILSData()) {
1068 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
1069 // queried data above is probably invalid, force us to go around again
1070 // (the next time through, validateILSData will return false)
1071 return outer->loadById(rowid);
1075 return loadNav(rowid, ty, ident, name, pos);
1078 case FGPositioned::FIX:
1079 return new FGFix(rowid, ident, pos);
1081 case FGPositioned::WAYPOINT:
1082 case FGPositioned::COUNTRY:
1083 case FGPositioned::CITY:
1084 case FGPositioned::TOWN:
1085 case FGPositioned::VILLAGE:
1087 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1091 case FGPositioned::FREQ_GROUND:
1092 case FGPositioned::FREQ_TOWER:
1093 case FGPositioned::FREQ_ATIS:
1094 case FGPositioned::FREQ_AWOS:
1095 case FGPositioned::FREQ_APP_DEP:
1096 case FGPositioned::FREQ_ENROUTE:
1097 case FGPositioned::FREQ_CLEARANCE:
1098 case FGPositioned::FREQ_UNICOM:
1099 return loadComm(rowid, ty, ident, name, pos, aptId);
1101 case FGPositioned::TAXI_NODE:
1102 return loadTaxiNode(rowid, pos, aptId);
1104 case FGPositioned::PARKING:
1105 return loadParking(rowid, ident, pos, aptId);
1113 static NavDataCache* static_instance = NULL;
1115 NavDataCache::NavDataCache()
1117 const int MAX_TRIES = 3;
1118 SGPath homePath(globals->get_fg_home());
1120 std::ostringstream os;
1121 string_list versionParts = simgear::strutils::split(VERSION, ".");
1122 if (versionParts.size() < 2) {
1123 os << "navdata.cache";
1125 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1128 homePath.append(os.str());
1130 for (int t=0; t < MAX_TRIES; ++t) {
1132 d.reset(new NavDataCachePrivate(homePath, this));
1134 //d->checkCacheFile();
1135 // reached this point with no exception, success
1137 } catch (sg_exception& e) {
1138 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1139 << " (attempt " << t << ")");
1145 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1146 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1147 Octree::global_spatialOctree =
1148 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1150 d->aptDatPath = SGPath(globals->get_fg_root());
1151 d->aptDatPath.append("Airports/apt.dat.gz");
1153 d->metarDatPath = SGPath(globals->get_fg_root());
1154 d->metarDatPath.append("Airports/metar.dat.gz");
1156 d->navDatPath = SGPath(globals->get_fg_root());
1157 d->navDatPath.append("Navaids/nav.dat.gz");
1159 d->fixDatPath = SGPath(globals->get_fg_root());
1160 d->fixDatPath.append("Navaids/fix.dat.gz");
1162 d->poiDatPath = SGPath(globals->get_fg_root());
1163 d->poiDatPath.append("Navaids/poi.dat.gz");
1165 d->carrierDatPath = SGPath(globals->get_fg_root());
1166 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1168 d->airwayDatPath = SGPath(globals->get_fg_root());
1169 d->airwayDatPath.append("Navaids/awy.dat.gz");
1172 NavDataCache::~NavDataCache()
1174 assert(static_instance == this);
1175 static_instance = NULL;
1176 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
1180 NavDataCache* NavDataCache::instance()
1182 if (!static_instance) {
1183 static_instance = new NavDataCache;
1186 return static_instance;
1189 bool NavDataCache::isRebuildRequired()
1191 if (isCachedFileModified(d->aptDatPath) ||
1192 isCachedFileModified(d->metarDatPath) ||
1193 isCachedFileModified(d->navDatPath) ||
1194 isCachedFileModified(d->fixDatPath) ||
1195 isCachedFileModified(d->poiDatPath) ||
1196 isCachedFileModified(d->airwayDatPath))
1198 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1202 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1203 if (readStringProperty("scenery_paths") != sceneryPaths) {
1204 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1208 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1212 bool NavDataCache::rebuild()
1214 if (!d->rebuilder.get()) {
1215 d->rebuilder.reset(new RebuildThread(this));
1216 d->rebuilder->start();
1219 // poll the rebuild thread
1220 bool fin = d->rebuilder->isFinished();
1222 d->rebuilder.reset(); // all done!
1227 void NavDataCache::doRebuild()
1230 d->close(); // completely close the sqlite object
1231 d->path.remove(); // remove the file on disk
1232 d->init(); // star again from scratch
1234 Transaction txn(this);
1235 // initialise the root octree node
1236 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1241 airportDBLoad(d->aptDatPath);
1242 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1244 metarDataLoad(d->metarDatPath);
1245 stampCacheFile(d->aptDatPath);
1246 stampCacheFile(d->metarDatPath);
1249 loadFixes(d->fixDatPath);
1250 stampCacheFile(d->fixDatPath);
1251 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1254 navDBInit(d->navDatPath);
1255 stampCacheFile(d->navDatPath);
1256 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1259 SG_LOG(SG_NAVCACHE, SG_ALERT, "SKIPPING POI load on Windows");
1262 poiDBInit(d->poiDatPath);
1263 stampCacheFile(d->poiDatPath);
1264 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1267 loadCarrierNav(d->carrierDatPath);
1268 stampCacheFile(d->carrierDatPath);
1271 Airway::load(d->airwayDatPath);
1272 stampCacheFile(d->airwayDatPath);
1273 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1275 d->flushDeferredOctreeUpdates();
1277 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1278 writeStringProperty("scenery_paths", sceneryPaths);
1281 } catch (sg_exception& e) {
1282 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1286 int NavDataCache::readIntProperty(const string& key)
1288 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1291 if (d->execSelect(d->readPropertyQuery)) {
1292 result = sqlite3_column_int(d->readPropertyQuery, 0);
1294 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1297 d->reset(d->readPropertyQuery);
1301 double NavDataCache::readDoubleProperty(const string& key)
1303 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1304 double result = 0.0;
1305 if (d->execSelect(d->readPropertyQuery)) {
1306 result = sqlite3_column_double(d->readPropertyQuery, 0);
1308 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1311 d->reset(d->readPropertyQuery);
1315 string NavDataCache::readStringProperty(const string& key)
1317 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1319 if (d->execSelect(d->readPropertyQuery)) {
1320 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1322 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1325 d->reset(d->readPropertyQuery);
1329 void NavDataCache::writeIntProperty(const string& key, int value)
1331 d->writeIntProperty(key, value);
1334 void NavDataCache::writeStringProperty(const string& key, const string& value)
1336 sqlite_bind_stdstring(d->clearProperty, 1, key);
1337 d->execUpdate(d->clearProperty);
1339 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1340 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1341 d->execUpdate(d->writePropertyQuery);
1344 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1346 sqlite_bind_stdstring(d->clearProperty, 1, key);
1347 d->execUpdate(d->clearProperty);
1349 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1350 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1351 d->execUpdate(d->writePropertyQuery);
1354 string_list NavDataCache::readStringListProperty(const string& key)
1356 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1358 while (d->stepSelect(d->readPropertyQuery)) {
1359 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1361 d->reset(d->readPropertyQuery);
1366 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1368 sqlite_bind_stdstring(d->clearProperty, 1, key);
1369 d->execUpdate(d->clearProperty);
1371 BOOST_FOREACH(string value, values) {
1372 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1373 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1374 d->execInsert(d->writePropertyMulti);
1378 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1380 if (!path.exists()) {
1381 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1384 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1385 bool isModified = true;
1387 if (d->execSelect(d->statCacheCheck)) {
1388 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1389 time_t delta = std::labs(modtime - path.modTime());
1392 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1395 // File system time stamp has slightly changed. It's unlikely that the user has managed to change a file, start fgfs,
1396 // and then changed file again within x seconds - so it's suspicious...
1397 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache: suspicious file timestamp change. Please report this to FlightGear. "
1398 << "Delta: " << delta << ", Timestamps: " << modtime << ", " << path.modTime() << ", path: " << path);
1403 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1406 isModified = (delta != 0);
1408 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1411 d->reset(d->statCacheCheck);
1415 void NavDataCache::stampCacheFile(const SGPath& path)
1417 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1418 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1419 d->execInsert(d->stampFileCache);
1422 void NavDataCache::beginTransaction()
1424 if (d->transactionLevel == 0) {
1425 d->transactionAborted = false;
1426 d->stepSelect(d->beginTransactionStmt);
1427 sqlite3_reset(d->beginTransactionStmt);
1430 ++d->transactionLevel;
1433 void NavDataCache::commitTransaction()
1435 assert(d->transactionLevel > 0);
1436 if (--d->transactionLevel == 0) {
1437 // if a nested transaction aborted, we might end up here, but must
1438 // still abort the entire transaction. That's bad, but safer than
1440 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1444 while (retries < MAX_RETRIES) {
1445 result = sqlite3_step(q);
1446 if (result == SQLITE_DONE) {
1450 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1451 // what's going on here: autocommit in inactive inside BEGIN, so if
1452 // it's active, the DB was rolled-back
1453 if (sqlite3_get_autocommit(d->db)) {
1454 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1455 d->transactionAborted = true;
1459 if (result != SQLITE_BUSY) {
1463 SGTimeStamp::sleepForMSec(++retries * 10);
1464 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1465 } // of retry loop for DB busy
1468 if (result != SQLITE_DONE) {
1469 errMsg = sqlite3_errmsg(d->db);
1470 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1471 << " while running:\n\t" << sqlite3_sql(q));
1478 void NavDataCache::abortTransaction()
1480 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1482 assert(d->transactionLevel > 0);
1483 if (--d->transactionLevel == 0) {
1484 d->stepSelect(d->rollbackTransactionStmt);
1485 sqlite3_reset(d->rollbackTransactionStmt);
1488 d->transactionAborted = true;
1491 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1497 PositionedCache::iterator it = d->cache.find(rowid);
1498 if (it != d->cache.end()) {
1500 return it->second; // cache it
1503 FGPositioned* pos = d->loadById(rowid);
1504 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1509 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1512 // airports have their pos computed based on the avergae runway centres
1513 // so the pos isn't available immediately. Pass a dummy pos and avoid
1514 // doing spatial indexing until later
1515 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1517 false /* spatial index */);
1519 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1520 d->execInsert(d->insertAirport);
1525 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1527 if (d->cache.find(item) != d->cache.end()) {
1528 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1529 d->cache[item]->modifyPosition(pos);
1532 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1534 sqlite3_bind_int(d->setAirportPos, 1, item);
1535 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1536 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1537 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1539 // bug 905; the octree leaf may change here, but the leaf may already be
1540 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1541 // we may be called here as a result of loading one of those leaf's children.
1542 // instead of dealing with all those possibilites, such as modifying
1543 // the in-memory leaf's STL child container, we simply leave the runtime
1544 // structures alone. This is fine providing items do no move very far, since
1545 // all the spatial searches ultimately use the items' real cartesian position,
1546 // which was updated above.
1547 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1548 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1550 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1551 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1552 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1555 d->execUpdate(d->setAirportPos);
1558 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1560 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1561 pos, airportId, true /* spatial index */);
1565 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1566 const SGGeod& pos, PositionedID apt,
1567 double heading, double length, double width, double displacedThreshold,
1568 double stopway, int surfaceCode)
1570 // only runways are spatially indexed; don't bother indexing taxiways
1572 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1574 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1576 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1577 sqlite3_bind_double(d->insertRunway, 2, heading);
1578 sqlite3_bind_double(d->insertRunway, 3, length);
1579 sqlite3_bind_double(d->insertRunway, 4, width);
1580 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1581 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1582 sqlite3_bind_double(d->insertRunway, 7, stopway);
1584 return d->execInsert(d->insertRunway);
1587 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1589 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1590 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1591 d->execUpdate(d->setRunwayReciprocal);
1593 // and the opposite direction too!
1594 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1595 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1596 d->execUpdate(d->setRunwayReciprocal);
1599 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1601 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1602 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1603 d->execUpdate(d->setRunwayILS);
1605 // and the in-memory one
1606 if (d->cache.find(runway) != d->cache.end()) {
1607 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1608 instance->setILS(ils);
1612 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1613 double aHeading, double aDisplacedThreshold,
1616 // update the runway information
1617 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1618 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1619 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1620 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1621 d->execUpdate(d->updateRunwayThreshold);
1623 // now update the positional data
1624 updatePosition(runwayID, aThreshold);
1628 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1629 const string& name, const SGGeod& pos,
1630 int freq, int range, double multiuse,
1631 PositionedID apt, PositionedID runway)
1633 bool spatialIndex = true;
1634 if (ty == FGPositioned::MOBILE_TACAN) {
1635 spatialIndex = false;
1638 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1640 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1641 sqlite3_bind_int(d->insertNavaid, 2, freq);
1642 sqlite3_bind_int(d->insertNavaid, 3, range);
1643 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1644 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1645 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1646 return d->execInsert(d->insertNavaid);
1649 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1651 // Update DB entries...
1652 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1653 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1654 d->execUpdate(d->setNavaidColocated);
1656 // ...and the in-memory copy of the navrecord
1657 if (d->cache.find(navaid) != d->cache.end()) {
1658 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1659 rec->setColocatedDME(colocatedDME);
1663 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1665 sqlite3_bind_int64(d->updateILS, 1, ils);
1666 sqlite3_bind_double(d->updateILS, 2, aHdg);
1667 d->execUpdate(d->updateILS);
1668 updatePosition(ils, newPos);
1671 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1672 const string& name, const SGGeod& pos, int freq, int range,
1675 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1676 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1677 sqlite3_bind_int(d->insertCommStation, 2, freq);
1678 sqlite3_bind_int(d->insertCommStation, 3, range);
1679 return d->execInsert(d->insertCommStation);
1682 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1684 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1687 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1689 return d->insertPositioned(ty, ident, string(), aPos, 0,
1690 true /* spatial index */);
1693 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1695 d->removePositionedWithIdent(ty, aIdent);
1696 // should remove from the live cache too?
1701 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1703 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1704 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1705 d->execUpdate(d->setAirportMetar);
1708 //------------------------------------------------------------------------------
1709 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1710 FGPositioned::Filter* filter,
1713 return d->findAllByString(s, "ident", filter, exact);
1716 //------------------------------------------------------------------------------
1717 FGPositionedList NavDataCache::findAllWithName( const string& s,
1718 FGPositioned::Filter* filter,
1721 return d->findAllByString(s, "name", filter, exact);
1724 //------------------------------------------------------------------------------
1725 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1727 FGPositioned::Filter* aFilter )
1729 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1731 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1732 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1733 } else { // full type range
1734 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1735 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1738 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1739 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1740 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1741 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1743 FGPositionedRef result;
1745 while (d->stepSelect(d->findClosestWithIdent)) {
1746 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1747 if (aFilter && !aFilter->pass(pos)) {
1755 d->reset(d->findClosestWithIdent);
1760 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1762 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1763 d->execSelect1(d->getOctreeChildren);
1764 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1765 d->reset(d->getOctreeChildren);
1769 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1771 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1772 d->execInsert(d->insertOctree);
1774 #ifdef LAZY_OCTREE_UPDATES
1775 d->deferredOctreeUpdates.insert(pr);
1777 // lowest three bits of node ID are 0..7 index of the child in the parent
1778 int childIndex = nd->guid() & 0x07;
1780 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1781 // mask has bit N set where child N exists
1782 int childMask = 1 << childIndex;
1783 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1784 d->execUpdate(d->updateOctreeChildren);
1789 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1791 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1793 TypedPositionedVec r;
1794 while (d->stepSelect(d->getOctreeLeafChildren)) {
1795 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1796 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1797 r.push_back(std::make_pair(ty,
1798 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1801 d->reset(d->getOctreeLeafChildren);
1807 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1808 * implement the AirportList dialog. It's unfortunate that it needs to reside
1809 * here, but for now it's least ugly solution.
1811 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1813 string s = "%" + aFilter + "%";
1814 sqlite_bind_stdstring(d->searchAirports, 1, s);
1816 unsigned int numMatches = 0, numAllocated = 16;
1817 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1819 while (d->stepSelect(d->searchAirports)) {
1820 if ((numMatches + 1) >= numAllocated) {
1821 numAllocated <<= 1; // double in size!
1822 // reallocate results array
1823 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1824 memcpy(nresult, result, sizeof(char*) * numMatches);
1829 // nasty code to avoid excessive string copying and allocations.
1830 // We format results as follows (note whitespace!):
1831 // ' name-of-airport-chars (ident)'
1832 // so the total length is:
1833 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1834 // which gives a grand total of 7 + name-length + icao-length.
1835 // note the ident can be three letters (non-ICAO local strip), four
1836 // (default ICAO) or more (extended format ICAO)
1837 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1838 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1839 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1842 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1848 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1853 result[numMatches++] = entry;
1856 result[numMatches] = NULL; // end of list marker
1857 d->reset(d->searchAirports);
1862 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1864 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1866 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1867 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1868 } else { // full type range
1869 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1870 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1873 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1874 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1875 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1876 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1877 FGPositionedRef result;
1879 while (d->execSelect(d->findCommByFreq)) {
1880 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1881 if (aFilter && !aFilter->pass(p)) {
1889 d->reset(d->findCommByFreq);
1894 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1896 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1898 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1899 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1900 } else { // full type range
1901 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1902 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1905 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1906 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1907 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1908 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1910 return d->selectIds(d->findNavsByFreq);
1914 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1916 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1918 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1919 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1920 } else { // full type range
1921 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1922 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1925 return d->selectIds(d->findNavsByFreqNoPos);
1929 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1930 FGPositioned::Type maxTy)
1932 if (maxTy == FGPositioned::INVALID) {
1933 maxTy = ty; // single-type range
1936 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1937 sqlite3_bind_int(d->getAirportItems, 2, ty);
1938 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1940 return d->selectIds(d->getAirportItems);
1944 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1945 const std::string& ident)
1947 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1948 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1949 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1950 PositionedID result = 0;
1952 if (d->execSelect(d->getAirportItemByIdent)) {
1953 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1956 d->reset(d->getAirportItemByIdent);
1961 NavDataCache::findAirportRunway(const std::string& aName)
1963 if (aName.empty()) {
1964 return AirportRunwayPair();
1967 string_list parts = simgear::strutils::split(aName);
1968 if (parts.size() < 2) {
1969 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1970 return AirportRunwayPair();
1973 AirportRunwayPair result;
1974 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1975 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1977 if (d->execSelect(d->findAirportRunway)) {
1978 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1979 sqlite3_column_int64(d->findAirportRunway, 1));
1982 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1985 d->reset(d->findAirportRunway);
1990 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1992 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1993 sqlite3_bind_int64(d->findILS, 2, airport);
1994 sqlite_bind_stdstring(d->findILS, 3, runway);
1995 PositionedID result = 0;
1996 if (d->execSelect(d->findILS)) {
1997 result = sqlite3_column_int64(d->findILS, 0);
2000 d->reset(d->findILS);
2004 int NavDataCache::findAirway(int network, const string& aName)
2006 sqlite3_bind_int(d->findAirway, 1, network);
2007 sqlite_bind_stdstring(d->findAirway, 2, aName);
2010 if (d->execSelect(d->findAirway)) {
2012 airway = sqlite3_column_int(d->findAirway, 0);
2014 sqlite_bind_stdstring(d->insertAirway, 1, aName);
2015 sqlite3_bind_int(d->insertAirway, 2, network);
2016 airway = d->execInsert(d->insertAirway);
2019 d->reset(d->findAirway);
2023 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
2025 // assume all edges are bidirectional for the moment
2026 for (int i=0; i<2; ++i) {
2027 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
2028 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
2029 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
2030 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
2031 d->execInsert(d->insertAirwayEdge);
2033 std::swap(from, to);
2037 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
2039 sqlite3_bind_int(d->isPosInAirway, 1, network);
2040 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
2041 bool ok = d->execSelect(d->isPosInAirway);
2042 d->reset(d->isPosInAirway);
2047 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
2049 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
2050 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
2052 AirwayEdgeVec result;
2053 while (d->stepSelect(d->airwayEdgesFrom)) {
2054 result.push_back(AirwayEdge(
2055 sqlite3_column_int(d->airwayEdgesFrom, 0),
2056 sqlite3_column_int64(d->airwayEdgesFrom, 1)
2060 d->reset(d->airwayEdgesFrom);
2064 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2066 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2067 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2069 PositionedID result = 0;
2070 if (d->execSelect(d->findNavaidForRunway)) {
2071 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2074 d->reset(d->findNavaidForRunway);
2079 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2080 PositionedID aAirport,
2081 double aHeading, int aRadius, const std::string& aAircraftType,
2082 const std::string& aAirlines)
2084 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2086 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2087 // the appropriate pushback flag.
2088 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2089 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2090 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2091 d->execInsert(d->insertTaxiNode);
2093 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2094 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2095 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2096 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2097 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2098 return d->execInsert(d->insertParkingPos);
2101 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2103 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2104 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2105 d->execUpdate(d->setParkingPushBack);
2109 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2111 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2112 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2113 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2114 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2115 return d->execInsert(d->insertTaxiNode);
2118 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2120 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2121 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2122 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2123 d->execInsert(d->insertTaxiEdge);
2126 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2128 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2129 sqlite3_bind_int64(q, 1, aAirport);
2130 return d->selectIds(q);
2133 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2135 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2136 d->execUpdate(d->markTaxiNodeAsPushback);
2139 static double headingDifferenceDeg(double crs1, double crs2)
2141 double diff = crs2 - crs1;
2142 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2146 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2147 bool onRunway, FGRunway* aRunway)
2149 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2150 sqlite3_bind_int64(q, 1, airport);
2152 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2153 sqlite3_bind_double(q, 2, cartPos.x());
2154 sqlite3_bind_double(q, 3, cartPos.y());
2155 sqlite3_bind_double(q, 4, cartPos.z());
2157 PositionedID result = 0;
2158 while (d->execSelect(q)) {
2159 PositionedID id = sqlite3_column_int64(q, 0);
2165 // ensure found node lies on the runway
2166 FGPositionedRef node = loadById(id);
2167 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2168 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2178 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2180 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2181 sqlite3_bind_int64(q, 1, pos);
2182 return d->selectIds(q);
2185 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2188 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2189 sqlite3_bind_int(d->findAirportParking, 2, radius);
2190 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2192 return d->selectIds(d->findAirportParking);
2195 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2197 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2198 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2199 sqlite3_bind_int64(q, 2, aAirport);
2202 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2203 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2204 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2205 sqlite3_bind_int64(q, 3, aAirport);
2208 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2209 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2210 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2211 sqlite3_bind_int64(q, 3, aAirport);
2214 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2215 sqlite3_bind_int64(q, 1, aAirport);
2219 /////////////////////////////////////////////////////////////////////////////////////////
2220 // Transaction RAII object
2222 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2227 _instance->beginTransaction();
2230 NavDataCache::Transaction::~Transaction()
2233 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2234 _instance->abortTransaction();
2238 void NavDataCache::Transaction::commit()
2240 assert(!_committed);
2242 _instance->commitTransaction();
2245 } // of namespace flightgear