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 #include "NavDataCache.hxx"
31 #include <stdint.h> // for int64_t
33 #include <boost/foreach.hpp>
35 // to ensure compatability between sqlite3_int64 and PositionedID,
36 // force the type used by sqlite to match PositionedID explicitly
37 #define SQLITE_INT64_TYPE int64_t
38 #define SQLITE_UINT64_TYPE uint64_t
43 #include "fg_sqlite3.h"
47 #include <simgear/sg_inlines.h>
48 #include <simgear/structure/exception.hxx>
49 #include <simgear/debug/logstream.hxx>
50 #include <simgear/bucket/newbucket.hxx>
51 #include <simgear/misc/sg_path.hxx>
52 #include <simgear/misc/strutils.hxx>
53 #include <simgear/threads/SGThread.hxx>
54 #include <simgear/threads/SGGuard.hxx>
56 #include <Main/globals.hxx>
57 #include "markerbeacon.hxx"
58 #include "navrecord.hxx"
59 #include <Airports/airport.hxx>
60 #include <Airports/runways.hxx>
61 #include <ATC/CommStation.hxx>
63 #include <Navaids/fixlist.hxx>
64 #include <Navaids/navdb.hxx>
65 #include "PositionedOctree.hxx"
66 #include <Airports/apt_loader.hxx>
67 #include <Navaids/airways.hxx>
69 #include <Airports/parking.hxx>
70 #include <Airports/gnnode.hxx>
74 #define SG_NAVCACHE SG_NAVAID
75 //#define LAZY_OCTREE_UPDATES 1
79 const int MAX_RETRIES = 10;
80 const int SCHEMA_VERSION = 8;
81 const int CACHE_SIZE_KBYTES= 32 * 1024;
83 // bind a std::string to a sqlite statement. The std::string must live the
84 // entire duration of the statement execution - do not pass a temporary
85 // std::string, or the compiler may delete it, freeing the C-string storage,
86 // and causing subtle memory corruption bugs!
87 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
89 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
92 // variant of the above, which does not care about the lifetime of the
94 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
96 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
99 typedef sqlite3_stmt* sqlite3_stmt_ptr;
101 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
107 SGVec3d posA(sqlite3_value_double(argv[0]),
108 sqlite3_value_double(argv[1]),
109 sqlite3_value_double(argv[2]));
111 SGVec3d posB(sqlite3_value_double(argv[3]),
112 sqlite3_value_double(argv[4]),
113 sqlite3_value_double(argv[5]));
114 sqlite3_result_double(ctx, distSqr(posA, posB));
118 static string cleanRunwayNo(const string& aRwyNo)
120 if (aRwyNo[0] == 'x') {
121 return string(); // no ident for taxiways
124 string result(aRwyNo);
125 // canonicalise runway ident
126 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
127 result = "0" + aRwyNo;
130 // trim off trailing garbage
131 if (result.size() > 2) {
132 char suffix = toupper(result[2]);
134 result = result.substr(0, 2);
141 } // anonymous namespace
147 * Thread encapsulating a cache rebuild. This is not used to parallelise
148 * the rebuild - we must still wait until completion before doing other
149 * startup, since many things rely on a complete cache. The thread is used
150 * so we don't block the main event loop for an unacceptable duration,
151 * which causes 'not responding' / spinning beachballs on Windows & Mac
153 class RebuildThread : public SGThread
156 RebuildThread(NavDataCache* cache) :
163 bool isFinished() const
165 SGGuard<SGMutex> g(_lock);
174 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
176 SGGuard<SGMutex> g(_lock);
180 NavDataCache* _cache;
181 mutable SGMutex _lock;
185 ////////////////////////////////////////////////////////////////////////////
187 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
189 class AirportTower : public FGPositioned
192 AirportTower(PositionedID& guid, PositionedID airport,
193 const string& ident, const SGGeod& pos) :
194 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
199 class NavDataCache::NavDataCachePrivate
202 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
209 transactionAborted(false)
213 ~NavDataCachePrivate()
220 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
222 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
223 // for the logic here. Sigh.
224 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
225 sqlite3_open_v2(pathUtf8.c_str(), &db,
226 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
229 sqlite3_stmt_ptr checkTables =
230 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
232 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
233 f_distanceCartSqrFunction, NULL, NULL);
235 execSelect(checkTables);
236 bool didCreate = false;
237 if (sqlite3_column_int(checkTables, 0) == 0) {
238 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
243 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
244 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
245 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
248 writeIntProperty("schema-version", SCHEMA_VERSION);
250 int schemaVersion = outer->readIntProperty("schema-version");
251 if (schemaVersion != SCHEMA_VERSION) {
252 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
253 throw sg_exception("Navcache schema has changed");
257 // see http://www.sqlite.org/pragma.html#pragma_cache_size
258 // for the details, small cache would cause thrashing.
259 std::ostringstream q;
260 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
267 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
268 sqlite3_finalize(stmt);
274 void checkCacheFile()
276 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
280 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
281 if (!execSelect(stmt)) {
282 throw sg_exception("DB integrity check failed to run");
285 string v = (char*) sqlite3_column_text(stmt, 0);
287 throw sg_exception("DB integrity check returned:" + v);
290 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
294 void callSqlite(int result, const string& sql)
296 if (result == SQLITE_OK)
300 if (result == SQLITE_MISUSE) {
301 errMsg = "Sqlite API abuse";
302 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
304 errMsg = sqlite3_errmsg(db);
305 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
308 throw sg_exception("Sqlite error:" + errMsg, sql);
311 void runSQL(const string& sql)
313 sqlite3_stmt_ptr stmt;
314 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
318 } catch (sg_exception&) {
319 sqlite3_finalize(stmt);
323 sqlite3_finalize(stmt);
326 sqlite3_stmt_ptr prepare(const string& sql)
328 sqlite3_stmt_ptr stmt;
329 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
330 prepared.push_back(stmt);
334 void finalize(sqlite3_stmt_ptr s)
336 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
337 if (it == prepared.end()) {
338 throw sg_exception("Finalising statement that was not prepared");
345 void reset(sqlite3_stmt_ptr stmt)
348 if (sqlite3_reset(stmt) != SQLITE_OK) {
349 string errMsg = sqlite3_errmsg(db);
350 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
351 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
355 bool execSelect(sqlite3_stmt_ptr stmt)
357 return stepSelect(stmt);
360 bool stepSelect(sqlite3_stmt_ptr stmt)
364 while (retries < MAX_RETRIES) {
365 result = sqlite3_step(stmt);
366 if (result == SQLITE_ROW) {
367 return true; // at least one result row
370 if (result == SQLITE_DONE) {
371 return false; // no result rows
374 if (result != SQLITE_BUSY) {
378 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
379 SGTimeStamp::sleepForMSec(++retries * 10);
380 } // of retry loop for DB locked
382 if (retries >= MAX_RETRIES) {
383 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
388 if (result == SQLITE_MISUSE) {
389 errMsg = "Sqlite API abuse";
390 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
392 errMsg = sqlite3_errmsg(db);
393 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
394 << ") while running:\n\t" << sqlite3_sql(stmt));
397 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
400 void execSelect1(sqlite3_stmt_ptr stmt)
402 if (!execSelect(stmt)) {
403 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
404 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
408 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
411 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
416 void execUpdate(sqlite3_stmt_ptr stmt)
424 runSQL("CREATE TABLE properties ("
429 runSQL("CREATE TABLE stat_cache ("
430 "path VARCHAR unique,"
434 runSQL("CREATE TABLE positioned ("
436 "ident VARCHAR collate nocase,"
437 "name VARCHAR collate nocase,"
448 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
449 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
450 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
451 // allow efficient querying of 'all ATIS at this airport' or
452 // 'all towers at this airport'
453 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
455 runSQL("CREATE TABLE airport ("
460 runSQL("CREATE TABLE comm ("
466 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
468 runSQL("CREATE TABLE runway ("
473 "displaced_threshold FLOAT,"
480 runSQL("CREATE TABLE navaid ("
489 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
491 runSQL("CREATE TABLE octree (children INT)");
493 runSQL("CREATE TABLE airway ("
494 "ident VARCHAR collate nocase,"
495 "network INT" // high-level or low-level
498 runSQL("CREATE INDEX airway_ident ON airway(ident)");
500 runSQL("CREATE TABLE airway_edge ("
507 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
509 runSQL("CREATE TABLE taxi_node ("
515 runSQL("CREATE TABLE parking ("
523 runSQL("CREATE TABLE groundnet_edge ("
529 runSQL("CREATE INDEX groundnet_edge_airport ON groundnet_edge(airport)");
530 runSQL("CREATE INDEX groundnet_edge_from ON groundnet_edge(a)");
533 void prepareQueries()
535 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
537 beginTransactionStmt = prepare("BEGIN");
538 commitTransactionStmt = prepare("COMMIT");
539 rollbackTransactionStmt = prepare("ROLLBACK");
542 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
543 #define AND_TYPED "AND type>=?2 AND type <=?3"
544 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
545 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
546 "(path, stamp) VALUES (?,?)");
548 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
549 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
550 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
551 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
552 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
553 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
555 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
558 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
559 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
560 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
561 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
563 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
564 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
565 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
566 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
568 insertPositionedQuery = prepare("INSERT INTO positioned "
569 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
570 "cart_x, cart_y, cart_z)"
571 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
573 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
574 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
575 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
576 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
577 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
578 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
580 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
581 " VALUES (?, ?, ?)");
582 insertRunway = prepare("INSERT INTO runway "
583 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
584 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
585 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
587 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
590 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
591 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
593 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
594 "positioned.rowid=comm.rowid AND freq_khz=?1 "
595 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
597 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
598 "positioned.rowid=navaid.rowid "
599 "AND navaid.freq=?1 " AND_TYPED
600 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
602 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
603 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
605 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
606 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
608 // for an octree branch, return the child octree nodes which exist,
609 // described as a bit-mask
610 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
612 #ifdef LAZY_OCTREE_UPDATES
613 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
615 // mask the new child value into the existing one
616 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
619 // define a new octree node (with no children)
620 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
622 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
624 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
625 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
626 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
628 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
630 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
631 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
632 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
633 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
635 // three-way join to get the navaid ident and runway ident in a single select.
636 // we're joining positioned to itself by the navaid runway, with the complication
637 // that we need to join the navaids table to get the runway ID.
638 // we also need to filter by type to excluse glideslope (GS) matches
639 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
640 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
641 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
642 "AND (nav.type=?4 OR nav.type=?5)");
644 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
645 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
648 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
649 insertAirway = prepare("INSERT INTO airway (ident, network) "
652 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
653 "VALUES (?1, ?2, ?3, ?4)");
655 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
657 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
659 // parking / taxi-node graph
660 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
661 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
662 "VALUES (?1, ?2, ?3, ?4, ?5)");
663 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
665 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
666 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
667 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
668 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
669 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
671 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
673 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
674 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
675 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
676 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
678 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
679 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
680 "AND (type=?2 OR type=?3)");
681 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
682 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
684 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
685 "positioned.rowid = taxi_node.rowid AND airport=?1 "
686 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
689 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
690 "positioned.rowid = taxi_node.rowid AND airport=?1 "
692 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
694 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
695 "airport=?1 AND type=?4 AND "
696 "radius >= ?2 AND gate_type = ?3 AND "
697 "parking.rowid=positioned.rowid");
698 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
701 void writeIntProperty(const string& key, int value)
703 sqlite_bind_stdstring(clearProperty, 1, key);
704 execUpdate(clearProperty);
706 sqlite_bind_stdstring(writePropertyQuery, 1, key);
707 sqlite3_bind_int(writePropertyQuery, 2, value);
708 execUpdate(writePropertyQuery);
712 FGPositioned* loadById(sqlite_int64 rowId);
714 FGAirport* loadAirport(sqlite_int64 rowId,
715 FGPositioned::Type ty,
716 const string& id, const string& name, const SGGeod& pos)
718 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
719 execSelect1(loadAirportStmt);
720 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
721 reset(loadAirportStmt);
723 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
726 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
727 const string& id, const SGGeod& pos, PositionedID apt)
729 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
730 execSelect1(loadRunwayStmt);
732 double heading = sqlite3_column_double(loadRunwayStmt, 0);
733 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
734 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
735 int surface = sqlite3_column_int(loadRunwayStmt, 3);
737 if (ty == FGPositioned::TAXIWAY) {
738 reset(loadRunwayStmt);
739 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
740 } else if (ty == FGPositioned::HELIPAD) {
741 reset(loadRunwayStmt);
742 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
744 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
745 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
746 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
747 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
748 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
749 displacedThreshold, stopway, surface);
751 if (reciprocal > 0) {
752 r->setReciprocalRunway(reciprocal);
759 reset(loadRunwayStmt);
764 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
765 const string& id, const string& name,
767 PositionedID airport)
769 sqlite3_bind_int64(loadCommStation, 1, rowId);
770 execSelect1(loadCommStation);
772 int range = sqlite3_column_int(loadCommStation, 0);
773 int freqKhz = sqlite3_column_int(loadCommStation, 1);
774 reset(loadCommStation);
776 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
777 c->setAirport(airport);
781 FGPositioned* loadNav(sqlite3_int64 rowId,
782 FGPositioned::Type ty, const string& id,
783 const string& name, const SGGeod& pos)
785 sqlite3_bind_int64(loadNavaid, 1, rowId);
786 execSelect1(loadNavaid);
788 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
789 // marker beacons are light-weight
790 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
791 (ty == FGPositioned::MM))
794 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
797 int rangeNm = sqlite3_column_int(loadNavaid, 0),
798 freq = sqlite3_column_int(loadNavaid, 1);
799 double mulituse = sqlite3_column_double(loadNavaid, 2);
800 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
803 FGNavRecord* n = new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
805 n->setColocatedDME(colocated);
811 FGPositioned* loadParking(sqlite3_int64 rowId,
812 const string& name, const SGGeod& pos,
813 PositionedID airport)
815 sqlite3_bind_int64(loadParkingPos, 1, rowId);
816 execSelect1(loadParkingPos);
818 double heading = sqlite3_column_double(loadParkingPos, 0);
819 int radius = sqlite3_column_int(loadParkingPos, 1);
820 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
821 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
822 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
823 reset(loadParkingPos);
825 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
828 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
829 PositionedID airport)
831 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
832 execSelect1(loadTaxiNodeStmt);
834 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
835 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
836 reset(loadTaxiNodeStmt);
838 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
841 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
842 const string& name, const SGGeod& pos, PositionedID apt,
845 SGVec3d cartPos(SGVec3d::fromGeod(pos));
847 sqlite3_bind_int(insertPositionedQuery, 1, ty);
848 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
849 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
850 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
851 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
852 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
853 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
856 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
857 assert(intersects(octreeLeaf->bbox(), cartPos));
858 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
860 sqlite3_bind_null(insertPositionedQuery, 8);
863 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
864 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
865 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
867 PositionedID r = execInsert(insertPositionedQuery);
871 FGPositionedList findAllByString(const string& s, const string& column,
872 FGPositioned::Filter* filter, bool exact)
875 if (!exact) query += "%";
877 // build up SQL query text
878 string matchTerm = exact ? "=?1" : " LIKE ?1";
879 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
881 sql += " " AND_TYPED;
884 // find or prepare a suitable statement frrm the SQL
885 sqlite3_stmt_ptr stmt = findByStringDict[sql];
888 findByStringDict[sql] = stmt;
891 sqlite_bind_stdstring(stmt, 1, query);
893 sqlite3_bind_int(stmt, 2, filter->minType());
894 sqlite3_bind_int(stmt, 3, filter->maxType());
897 FGPositionedList result;
898 // run the prepared SQL
899 while (stepSelect(stmt))
901 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
902 if (filter && !filter->pass(pos)) {
906 result.push_back(pos);
913 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
915 PositionedIDVec result;
916 while (stepSelect(query)) {
917 result.push_back(sqlite3_column_int64(query, 0));
923 double runwayLengthFt(PositionedID rwy)
925 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
926 execSelect1(runwayLengthFtQuery);
927 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
928 reset(runwayLengthFtQuery);
932 void flushDeferredOctreeUpdates()
934 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
935 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
936 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
937 execUpdate(updateOctreeChildren);
940 deferredOctreeUpdates.clear();
943 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
945 sqlite3_bind_int(removePOIQuery, 1, ty);
946 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
947 execUpdate(removePOIQuery);
948 reset(removePOIQuery);
955 /// the actual cache of ID -> instances. This holds an owning reference,
956 /// so once items are in the cache they will never be deleted until
957 /// the cache drops its reference
958 PositionedCache cache;
959 unsigned int cacheHits, cacheMisses;
962 * record the levels of open transaction objects we have
964 unsigned int transactionLevel;
965 bool transactionAborted;
966 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
968 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
969 carrierDatPath, airwayDatPath;
971 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
972 stampFileCache, statCacheCheck,
973 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
975 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
977 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
978 insertCommStation, insertNavaid;
979 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
980 setAirportPos, updateRunwayThreshold, updateILS;
981 sqlite3_stmt_ptr removePOIQuery;
983 sqlite3_stmt_ptr findClosestWithIdent;
984 // octree (spatial index) related queries
985 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
986 getOctreeLeafChildren;
988 sqlite3_stmt_ptr searchAirports;
989 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
990 findNavsByFreqNoPos, findNavaidForRunway;
991 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
992 sqlite3_stmt_ptr findAirportRunway,
995 sqlite3_stmt_ptr runwayLengthFtQuery;
998 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
1001 // groundnet (parking, taxi node graph)
1002 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
1003 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
1004 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
1005 setParkingPushBack, findNearestRunwayTaxiNode;
1007 // since there's many permutations of ident/name queries, we create
1008 // them programtically, but cache the exact query by its raw SQL once
1010 std::map<string, sqlite3_stmt_ptr> findByStringDict;
1012 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
1015 std::set<Octree::Branch*> deferredOctreeUpdates;
1017 // if we're performing a rebuild, the thread that is doing the work.
1019 std::auto_ptr<RebuildThread> rebuilder;
1022 //////////////////////////////////////////////////////////////////////
1024 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
1027 sqlite3_bind_int64(loadPositioned, 1, rowid);
1028 execSelect1(loadPositioned);
1030 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
1031 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
1033 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
1034 string name = (char*) sqlite3_column_text(loadPositioned, 3);
1035 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
1036 double lon = sqlite3_column_double(loadPositioned, 5);
1037 double lat = sqlite3_column_double(loadPositioned, 6);
1038 double elev = sqlite3_column_double(loadPositioned, 7);
1039 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
1041 reset(loadPositioned);
1044 case FGPositioned::AIRPORT:
1045 case FGPositioned::SEAPORT:
1046 case FGPositioned::HELIPORT:
1047 return loadAirport(rowid, ty, ident, name, pos);
1049 case FGPositioned::TOWER:
1050 return new AirportTower(rowid, aptId, ident, pos);
1052 case FGPositioned::RUNWAY:
1053 case FGPositioned::HELIPAD:
1054 case FGPositioned::TAXIWAY:
1055 return loadRunway(rowid, ty, ident, pos, aptId);
1057 case FGPositioned::LOC:
1058 case FGPositioned::VOR:
1059 case FGPositioned::GS:
1060 case FGPositioned::ILS:
1061 case FGPositioned::NDB:
1062 case FGPositioned::OM:
1063 case FGPositioned::MM:
1064 case FGPositioned::IM:
1065 case FGPositioned::DME:
1066 case FGPositioned::TACAN:
1067 case FGPositioned::MOBILE_TACAN:
1070 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1071 if (apt->validateILSData()) {
1072 // queried data above is probably invalid, force us to go around again
1073 // (the next time through, validateILSData will return false)
1074 return outer->loadById(rowid);
1078 return loadNav(rowid, ty, ident, name, pos);
1081 case FGPositioned::FIX:
1082 return new FGFix(rowid, ident, pos);
1084 case FGPositioned::WAYPOINT:
1085 case FGPositioned::COUNTRY:
1086 case FGPositioned::CITY:
1087 case FGPositioned::TOWN:
1088 case FGPositioned::VILLAGE:
1090 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1094 case FGPositioned::FREQ_GROUND:
1095 case FGPositioned::FREQ_TOWER:
1096 case FGPositioned::FREQ_ATIS:
1097 case FGPositioned::FREQ_AWOS:
1098 case FGPositioned::FREQ_APP_DEP:
1099 case FGPositioned::FREQ_ENROUTE:
1100 case FGPositioned::FREQ_CLEARANCE:
1101 case FGPositioned::FREQ_UNICOM:
1102 return loadComm(rowid, ty, ident, name, pos, aptId);
1104 case FGPositioned::TAXI_NODE:
1105 return loadTaxiNode(rowid, pos, aptId);
1107 case FGPositioned::PARKING:
1108 return loadParking(rowid, ident, pos, aptId);
1116 static NavDataCache* static_instance = NULL;
1118 NavDataCache::NavDataCache()
1120 const int MAX_TRIES = 3;
1121 SGPath homePath(globals->get_fg_home());
1123 std::ostringstream os;
1124 string_list versionParts = simgear::strutils::split(VERSION, ".");
1125 if (versionParts.size() < 2) {
1126 os << "navdata.cache";
1128 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1131 homePath.append(os.str());
1133 for (int t=0; t < MAX_TRIES; ++t) {
1135 d.reset(new NavDataCachePrivate(homePath, this));
1137 //d->checkCacheFile();
1138 // reached this point with no exception, success
1140 } catch (sg_exception& e) {
1141 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1142 << " (attempt " << t << ")");
1148 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1149 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1150 Octree::global_spatialOctree =
1151 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1153 d->aptDatPath = SGPath(globals->get_fg_root());
1154 d->aptDatPath.append("Airports/apt.dat.gz");
1156 d->metarDatPath = SGPath(globals->get_fg_root());
1157 d->metarDatPath.append("Airports/metar.dat.gz");
1159 d->navDatPath = SGPath(globals->get_fg_root());
1160 d->navDatPath.append("Navaids/nav.dat.gz");
1162 d->fixDatPath = SGPath(globals->get_fg_root());
1163 d->fixDatPath.append("Navaids/fix.dat.gz");
1165 d->poiDatPath = SGPath(globals->get_fg_root());
1166 d->poiDatPath.append("Navaids/poi.dat.gz");
1168 d->carrierDatPath = SGPath(globals->get_fg_root());
1169 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1171 d->airwayDatPath = SGPath(globals->get_fg_root());
1172 d->airwayDatPath.append("Navaids/awy.dat.gz");
1175 NavDataCache::~NavDataCache()
1177 assert(static_instance == this);
1178 static_instance = NULL;
1182 NavDataCache* NavDataCache::instance()
1184 if (!static_instance) {
1185 static_instance = new NavDataCache;
1188 return static_instance;
1191 bool NavDataCache::isRebuildRequired()
1193 if (isCachedFileModified(d->aptDatPath) ||
1194 isCachedFileModified(d->metarDatPath) ||
1195 isCachedFileModified(d->navDatPath) ||
1196 isCachedFileModified(d->fixDatPath) ||
1197 isCachedFileModified(d->poiDatPath) ||
1198 isCachedFileModified(d->airwayDatPath))
1200 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1204 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1205 if (readStringProperty("scenery_paths") != sceneryPaths) {
1206 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1210 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1214 bool NavDataCache::rebuild()
1216 if (!d->rebuilder.get()) {
1217 d->rebuilder.reset(new RebuildThread(this));
1218 d->rebuilder->start();
1221 // poll the rebuild thread
1222 bool fin = d->rebuilder->isFinished();
1224 d->rebuilder.reset(); // all done!
1229 void NavDataCache::doRebuild()
1232 d->close(); // completely close the sqlite object
1233 d->path.remove(); // remove the file on disk
1234 d->init(); // start again from scratch
1236 // initialise the root octree node
1237 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1241 Transaction txn(this);
1244 airportDBLoad(d->aptDatPath);
1245 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1247 metarDataLoad(d->metarDatPath);
1248 stampCacheFile(d->aptDatPath);
1249 stampCacheFile(d->metarDatPath);
1252 loadFixes(d->fixDatPath);
1253 stampCacheFile(d->fixDatPath);
1254 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1257 navDBInit(d->navDatPath);
1258 stampCacheFile(d->navDatPath);
1259 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1263 SG_LOG(SG_NAVCACHE, SG_INFO, "stage 1 commit took:" << st.elapsedMSec());
1267 SG_LOG(SG_NAVCACHE, SG_ALERT, "SKIPPING POI load on Windows");
1270 Transaction txn(this);
1273 poiDBInit(d->poiDatPath);
1274 stampCacheFile(d->poiDatPath);
1275 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1279 SG_LOG(SG_NAVCACHE, SG_INFO, "POI commit took:" << st.elapsedMSec());
1284 Transaction txn(this);
1285 loadCarrierNav(d->carrierDatPath);
1286 stampCacheFile(d->carrierDatPath);
1289 Airway::load(d->airwayDatPath);
1290 stampCacheFile(d->airwayDatPath);
1291 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1293 d->flushDeferredOctreeUpdates();
1295 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1296 writeStringProperty("scenery_paths", sceneryPaths);
1300 SG_LOG(SG_NAVCACHE, SG_INFO, "final commit took:" << st.elapsedMSec());
1304 } catch (sg_exception& e) {
1305 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1309 int NavDataCache::readIntProperty(const string& key)
1311 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1314 if (d->execSelect(d->readPropertyQuery)) {
1315 result = sqlite3_column_int(d->readPropertyQuery, 0);
1317 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1320 d->reset(d->readPropertyQuery);
1324 double NavDataCache::readDoubleProperty(const string& key)
1326 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1327 double result = 0.0;
1328 if (d->execSelect(d->readPropertyQuery)) {
1329 result = sqlite3_column_double(d->readPropertyQuery, 0);
1331 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1334 d->reset(d->readPropertyQuery);
1338 string NavDataCache::readStringProperty(const string& key)
1340 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1342 if (d->execSelect(d->readPropertyQuery)) {
1343 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1345 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1348 d->reset(d->readPropertyQuery);
1352 void NavDataCache::writeIntProperty(const string& key, int value)
1354 d->writeIntProperty(key, value);
1357 void NavDataCache::writeStringProperty(const string& key, const string& value)
1359 sqlite_bind_stdstring(d->clearProperty, 1, key);
1360 d->execUpdate(d->clearProperty);
1362 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1363 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1364 d->execUpdate(d->writePropertyQuery);
1367 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1369 sqlite_bind_stdstring(d->clearProperty, 1, key);
1370 d->execUpdate(d->clearProperty);
1372 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1373 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1374 d->execUpdate(d->writePropertyQuery);
1377 string_list NavDataCache::readStringListProperty(const string& key)
1379 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1381 while (d->stepSelect(d->readPropertyQuery)) {
1382 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1384 d->reset(d->readPropertyQuery);
1389 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1391 sqlite_bind_stdstring(d->clearProperty, 1, key);
1392 d->execUpdate(d->clearProperty);
1394 BOOST_FOREACH(string value, values) {
1395 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1396 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1397 d->execInsert(d->writePropertyMulti);
1401 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1403 if (!path.exists()) {
1404 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1407 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1408 bool isModified = true;
1410 if (d->execSelect(d->statCacheCheck)) {
1411 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1412 time_t delta = std::labs(modtime - path.modTime());
1415 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1419 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1422 isModified = (delta != 0);
1424 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1427 d->reset(d->statCacheCheck);
1431 void NavDataCache::stampCacheFile(const SGPath& path)
1433 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1434 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1435 d->execInsert(d->stampFileCache);
1438 void NavDataCache::beginTransaction()
1440 if (d->transactionLevel == 0) {
1441 d->transactionAborted = false;
1442 d->stepSelect(d->beginTransactionStmt);
1443 sqlite3_reset(d->beginTransactionStmt);
1446 ++d->transactionLevel;
1449 void NavDataCache::commitTransaction()
1451 assert(d->transactionLevel > 0);
1452 if (--d->transactionLevel == 0) {
1453 // if a nested transaction aborted, we might end up here, but must
1454 // still abort the entire transaction. That's bad, but safer than
1456 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1460 while (retries < MAX_RETRIES) {
1461 result = sqlite3_step(q);
1462 if (result == SQLITE_DONE) {
1466 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1467 // what's going on here: autocommit in inactive inside BEGIN, so if
1468 // it's active, the DB was rolled-back
1469 if (sqlite3_get_autocommit(d->db)) {
1470 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1471 d->transactionAborted = true;
1475 if (result != SQLITE_BUSY) {
1479 SGTimeStamp::sleepForMSec(++retries * 10);
1480 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1481 } // of retry loop for DB busy
1484 if (result != SQLITE_DONE) {
1485 errMsg = sqlite3_errmsg(d->db);
1486 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1487 << " while running:\n\t" << sqlite3_sql(q));
1494 void NavDataCache::abortTransaction()
1496 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1498 assert(d->transactionLevel > 0);
1499 if (--d->transactionLevel == 0) {
1500 d->stepSelect(d->rollbackTransactionStmt);
1501 sqlite3_reset(d->rollbackTransactionStmt);
1504 d->transactionAborted = true;
1507 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1513 PositionedCache::iterator it = d->cache.find(rowid);
1514 if (it != d->cache.end()) {
1516 return it->second; // cache it
1519 FGPositioned* pos = d->loadById(rowid);
1520 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1525 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1528 // airports have their pos computed based on the avergae runway centres
1529 // so the pos isn't available immediately. Pass a dummy pos and avoid
1530 // doing spatial indexing until later
1531 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1533 false /* spatial index */);
1535 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1536 d->execInsert(d->insertAirport);
1541 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1543 if (d->cache.find(item) != d->cache.end()) {
1544 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1545 d->cache[item]->modifyPosition(pos);
1548 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1550 sqlite3_bind_int(d->setAirportPos, 1, item);
1551 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1552 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1553 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1555 // bug 905; the octree leaf may change here, but the leaf may already be
1556 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1557 // we may be called here as a result of loading one of those leaf's children.
1558 // instead of dealing with all those possibilites, such as modifying
1559 // the in-memory leaf's STL child container, we simply leave the runtime
1560 // structures alone. This is fine providing items do no move very far, since
1561 // all the spatial searches ultimately use the items' real cartesian position,
1562 // which was updated above.
1563 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1564 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1566 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1567 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1568 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1571 d->execUpdate(d->setAirportPos);
1574 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1576 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1577 pos, airportId, true /* spatial index */);
1581 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1582 const SGGeod& pos, PositionedID apt,
1583 double heading, double length, double width, double displacedThreshold,
1584 double stopway, int surfaceCode)
1586 // only runways are spatially indexed; don't bother indexing taxiways
1588 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1590 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1592 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1593 sqlite3_bind_double(d->insertRunway, 2, heading);
1594 sqlite3_bind_double(d->insertRunway, 3, length);
1595 sqlite3_bind_double(d->insertRunway, 4, width);
1596 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1597 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1598 sqlite3_bind_double(d->insertRunway, 7, stopway);
1600 return d->execInsert(d->insertRunway);
1603 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1605 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1606 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1607 d->execUpdate(d->setRunwayReciprocal);
1609 // and the opposite direction too!
1610 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1611 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1612 d->execUpdate(d->setRunwayReciprocal);
1615 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1617 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1618 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1619 d->execUpdate(d->setRunwayILS);
1621 // and the in-memory one
1622 if (d->cache.find(runway) != d->cache.end()) {
1623 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1624 instance->setILS(ils);
1628 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1629 double aHeading, double aDisplacedThreshold,
1632 // update the runway information
1633 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1634 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1635 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1636 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1637 d->execUpdate(d->updateRunwayThreshold);
1639 // now update the positional data
1640 updatePosition(runwayID, aThreshold);
1644 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1645 const string& name, const SGGeod& pos,
1646 int freq, int range, double multiuse,
1647 PositionedID apt, PositionedID runway)
1649 bool spatialIndex = true;
1650 if (ty == FGPositioned::MOBILE_TACAN) {
1651 spatialIndex = false;
1654 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1656 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1657 sqlite3_bind_int(d->insertNavaid, 2, freq);
1658 sqlite3_bind_int(d->insertNavaid, 3, range);
1659 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1660 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1661 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1662 return d->execInsert(d->insertNavaid);
1665 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1667 // Update DB entries...
1668 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1669 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1670 d->execUpdate(d->setNavaidColocated);
1672 // ...and the in-memory copy of the navrecord
1673 if (d->cache.find(navaid) != d->cache.end()) {
1674 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1675 rec->setColocatedDME(colocatedDME);
1679 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1681 sqlite3_bind_int64(d->updateILS, 1, ils);
1682 sqlite3_bind_double(d->updateILS, 2, aHdg);
1683 d->execUpdate(d->updateILS);
1684 updatePosition(ils, newPos);
1687 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1688 const string& name, const SGGeod& pos, int freq, int range,
1691 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1692 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1693 sqlite3_bind_int(d->insertCommStation, 2, freq);
1694 sqlite3_bind_int(d->insertCommStation, 3, range);
1695 return d->execInsert(d->insertCommStation);
1698 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1700 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1703 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1705 return d->insertPositioned(ty, ident, string(), aPos, 0,
1706 true /* spatial index */);
1709 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1711 d->removePositionedWithIdent(ty, aIdent);
1712 // should remove from the live cache too?
1717 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1719 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1720 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1721 d->execUpdate(d->setAirportMetar);
1724 //------------------------------------------------------------------------------
1725 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1726 FGPositioned::Filter* filter,
1729 return d->findAllByString(s, "ident", filter, exact);
1732 //------------------------------------------------------------------------------
1733 FGPositionedList NavDataCache::findAllWithName( const string& s,
1734 FGPositioned::Filter* filter,
1737 return d->findAllByString(s, "name", filter, exact);
1740 //------------------------------------------------------------------------------
1741 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1743 FGPositioned::Filter* aFilter )
1745 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1747 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1748 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1749 } else { // full type range
1750 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1751 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1754 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1755 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1756 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1757 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1759 FGPositionedRef result;
1761 while (d->stepSelect(d->findClosestWithIdent)) {
1762 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1763 if (aFilter && !aFilter->pass(pos)) {
1771 d->reset(d->findClosestWithIdent);
1776 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1778 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1779 d->execSelect1(d->getOctreeChildren);
1780 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1781 d->reset(d->getOctreeChildren);
1785 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1787 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1788 d->execInsert(d->insertOctree);
1790 #ifdef LAZY_OCTREE_UPDATES
1791 d->deferredOctreeUpdates.insert(pr);
1793 // lowest three bits of node ID are 0..7 index of the child in the parent
1794 int childIndex = nd->guid() & 0x07;
1796 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1797 // mask has bit N set where child N exists
1798 int childMask = 1 << childIndex;
1799 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1800 d->execUpdate(d->updateOctreeChildren);
1805 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1807 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1809 TypedPositionedVec r;
1810 while (d->stepSelect(d->getOctreeLeafChildren)) {
1811 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1812 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1813 r.push_back(std::make_pair(ty,
1814 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1817 d->reset(d->getOctreeLeafChildren);
1823 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1824 * implement the AirportList dialog. It's unfortunate that it needs to reside
1825 * here, but for now it's least ugly solution.
1827 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1829 string s = "%" + aFilter + "%";
1830 sqlite_bind_stdstring(d->searchAirports, 1, s);
1832 unsigned int numMatches = 0, numAllocated = 16;
1833 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1835 while (d->stepSelect(d->searchAirports)) {
1836 if ((numMatches + 1) >= numAllocated) {
1837 numAllocated <<= 1; // double in size!
1838 // reallocate results array
1839 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1840 memcpy(nresult, result, sizeof(char*) * numMatches);
1845 // nasty code to avoid excessive string copying and allocations.
1846 // We format results as follows (note whitespace!):
1847 // ' name-of-airport-chars (ident)'
1848 // so the total length is:
1849 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1850 // which gives a grand total of 7 + name-length + icao-length.
1851 // note the ident can be three letters (non-ICAO local strip), four
1852 // (default ICAO) or more (extended format ICAO)
1853 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1854 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1855 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1858 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1864 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1869 result[numMatches++] = entry;
1872 result[numMatches] = NULL; // end of list marker
1873 d->reset(d->searchAirports);
1878 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1880 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1882 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1883 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1884 } else { // full type range
1885 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1886 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1889 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1890 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1891 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1892 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1893 FGPositionedRef result;
1895 while (d->execSelect(d->findCommByFreq)) {
1896 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1897 if (aFilter && !aFilter->pass(p)) {
1905 d->reset(d->findCommByFreq);
1910 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1912 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1914 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1915 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1916 } else { // full type range
1917 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1918 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1921 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1922 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1923 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1924 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1926 return d->selectIds(d->findNavsByFreq);
1930 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1932 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1934 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1935 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1936 } else { // full type range
1937 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1938 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1941 return d->selectIds(d->findNavsByFreqNoPos);
1945 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1946 FGPositioned::Type maxTy)
1948 if (maxTy == FGPositioned::INVALID) {
1949 maxTy = ty; // single-type range
1952 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1953 sqlite3_bind_int(d->getAirportItems, 2, ty);
1954 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1956 return d->selectIds(d->getAirportItems);
1960 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1961 const std::string& ident)
1963 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1964 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1965 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1966 PositionedID result = 0;
1968 if (d->execSelect(d->getAirportItemByIdent)) {
1969 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1972 d->reset(d->getAirportItemByIdent);
1977 NavDataCache::findAirportRunway(const std::string& aName)
1979 if (aName.empty()) {
1980 return AirportRunwayPair();
1983 string_list parts = simgear::strutils::split(aName);
1984 if (parts.size() < 2) {
1985 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1986 return AirportRunwayPair();
1989 AirportRunwayPair result;
1990 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1991 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1993 if (d->execSelect(d->findAirportRunway)) {
1994 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1995 sqlite3_column_int64(d->findAirportRunway, 1));
1998 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
2001 d->reset(d->findAirportRunway);
2006 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
2008 sqlite_bind_stdstring(d->findILS, 1, navIdent);
2009 sqlite3_bind_int64(d->findILS, 2, airport);
2010 sqlite_bind_stdstring(d->findILS, 3, runway);
2011 PositionedID result = 0;
2012 if (d->execSelect(d->findILS)) {
2013 result = sqlite3_column_int64(d->findILS, 0);
2016 d->reset(d->findILS);
2020 int NavDataCache::findAirway(int network, const string& aName)
2022 sqlite3_bind_int(d->findAirway, 1, network);
2023 sqlite_bind_stdstring(d->findAirway, 2, aName);
2026 if (d->execSelect(d->findAirway)) {
2028 airway = sqlite3_column_int(d->findAirway, 0);
2030 sqlite_bind_stdstring(d->insertAirway, 1, aName);
2031 sqlite3_bind_int(d->insertAirway, 2, network);
2032 airway = d->execInsert(d->insertAirway);
2035 d->reset(d->findAirway);
2039 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
2041 // assume all edges are bidirectional for the moment
2042 for (int i=0; i<2; ++i) {
2043 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
2044 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
2045 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
2046 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
2047 d->execInsert(d->insertAirwayEdge);
2049 std::swap(from, to);
2053 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
2055 sqlite3_bind_int(d->isPosInAirway, 1, network);
2056 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
2057 bool ok = d->execSelect(d->isPosInAirway);
2058 d->reset(d->isPosInAirway);
2063 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
2065 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
2066 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
2068 AirwayEdgeVec result;
2069 while (d->stepSelect(d->airwayEdgesFrom)) {
2070 result.push_back(AirwayEdge(
2071 sqlite3_column_int(d->airwayEdgesFrom, 0),
2072 sqlite3_column_int64(d->airwayEdgesFrom, 1)
2076 d->reset(d->airwayEdgesFrom);
2080 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2082 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2083 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2085 PositionedID result = 0;
2086 if (d->execSelect(d->findNavaidForRunway)) {
2087 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2090 d->reset(d->findNavaidForRunway);
2095 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2096 PositionedID aAirport,
2097 double aHeading, int aRadius, const std::string& aAircraftType,
2098 const std::string& aAirlines)
2100 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2102 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2103 // the appropriate pushback flag.
2104 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2105 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2106 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2107 d->execInsert(d->insertTaxiNode);
2109 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2110 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2111 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2112 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2113 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2114 return d->execInsert(d->insertParkingPos);
2117 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2119 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2120 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2121 d->execUpdate(d->setParkingPushBack);
2125 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2127 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2128 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2129 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2130 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2131 return d->execInsert(d->insertTaxiNode);
2134 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2136 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2137 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2138 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2139 d->execInsert(d->insertTaxiEdge);
2142 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2144 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2145 sqlite3_bind_int64(q, 1, aAirport);
2146 return d->selectIds(q);
2149 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2151 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2152 d->execUpdate(d->markTaxiNodeAsPushback);
2155 static double headingDifferenceDeg(double crs1, double crs2)
2157 double diff = crs2 - crs1;
2158 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2162 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2163 bool onRunway, FGRunway* aRunway)
2165 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2166 sqlite3_bind_int64(q, 1, airport);
2168 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2169 sqlite3_bind_double(q, 2, cartPos.x());
2170 sqlite3_bind_double(q, 3, cartPos.y());
2171 sqlite3_bind_double(q, 4, cartPos.z());
2173 PositionedID result = 0;
2174 while (d->execSelect(q)) {
2175 PositionedID id = sqlite3_column_int64(q, 0);
2181 // ensure found node lies on the runway
2182 FGPositionedRef node = loadById(id);
2183 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2184 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2194 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2196 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2197 sqlite3_bind_int64(q, 1, pos);
2198 return d->selectIds(q);
2201 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2204 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2205 sqlite3_bind_int(d->findAirportParking, 2, radius);
2206 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2208 return d->selectIds(d->findAirportParking);
2211 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2213 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2214 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2215 sqlite3_bind_int64(q, 2, aAirport);
2218 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2219 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2220 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2221 sqlite3_bind_int64(q, 3, aAirport);
2224 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2225 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2226 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2227 sqlite3_bind_int64(q, 3, aAirport);
2230 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2231 sqlite3_bind_int64(q, 1, aAirport);
2235 /////////////////////////////////////////////////////////////////////////////////////////
2236 // Transaction RAII object
2238 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2243 _instance->beginTransaction();
2246 NavDataCache::Transaction::~Transaction()
2249 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2250 _instance->abortTransaction();
2254 void NavDataCache::Transaction::commit()
2256 assert(!_committed);
2258 _instance->commitTransaction();
2261 } // of namespace flightgear