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>
37 // the standard sqlite3.h doesn't give a way to set SQLITE_UINT64_TYPE,
38 // so we have to hope sizeof(int64_t) matches sizeof(sqlite3_int64).
39 // otherwise things will go bad quickly.
42 // to ensure compatability between sqlite3_int64 and PositionedID,
43 // force the type used by sqlite to match PositionedID explicitly
44 #define SQLITE_INT64_TYPE int64_t
45 #define SQLITE_UINT64_TYPE uint64_t
47 #include "fg_sqlite3.h"
51 #include <simgear/sg_inlines.h>
52 #include <simgear/structure/exception.hxx>
53 #include <simgear/debug/logstream.hxx>
54 #include <simgear/bucket/newbucket.hxx>
55 #include <simgear/misc/sg_path.hxx>
56 #include <simgear/misc/strutils.hxx>
57 #include <simgear/threads/SGThread.hxx>
58 #include <simgear/threads/SGGuard.hxx>
60 #include <Main/globals.hxx>
61 #include <Main/fg_props.hxx>
62 #include <Main/options.hxx>
63 #include "markerbeacon.hxx"
64 #include "navrecord.hxx"
65 #include <Airports/airport.hxx>
66 #include <Airports/runways.hxx>
67 #include <ATC/CommStation.hxx>
69 #include <Navaids/fixlist.hxx>
70 #include <Navaids/navdb.hxx>
71 #include "PositionedOctree.hxx"
72 #include <Airports/apt_loader.hxx>
73 #include <Navaids/airways.hxx>
75 #include <Airports/parking.hxx>
76 #include <Airports/gnnode.hxx>
77 #include "CacheSchema.h"
81 #define SG_NAVCACHE SG_NAVAID
82 //#define LAZY_OCTREE_UPDATES 1
86 const int MAX_RETRIES = 10;
88 const int CACHE_SIZE_KBYTES= 32 * 1024;
90 // bind a std::string to a sqlite statement. The std::string must live the
91 // entire duration of the statement execution - do not pass a temporary
92 // std::string, or the compiler may delete it, freeing the C-string storage,
93 // and causing subtle memory corruption bugs!
94 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
96 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
99 // variant of the above, which does not care about the lifetime of the
100 // passed std::string
101 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
103 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
106 typedef sqlite3_stmt* sqlite3_stmt_ptr;
108 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
114 SGVec3d posA(sqlite3_value_double(argv[0]),
115 sqlite3_value_double(argv[1]),
116 sqlite3_value_double(argv[2]));
118 SGVec3d posB(sqlite3_value_double(argv[3]),
119 sqlite3_value_double(argv[4]),
120 sqlite3_value_double(argv[5]));
121 sqlite3_result_double(ctx, distSqr(posA, posB));
125 static string cleanRunwayNo(const string& aRwyNo)
127 if (aRwyNo[0] == 'x') {
128 return string(); // no ident for taxiways
131 string result(aRwyNo);
132 // canonicalise runway ident
133 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
134 result = "0" + aRwyNo;
137 // trim off trailing garbage
138 if (result.size() > 2) {
139 char suffix = toupper(result[2]);
141 result = result.substr(0, 2);
148 } // anonymous namespace
154 * Thread encapsulating a cache rebuild. This is not used to parallelise
155 * the rebuild - we must still wait until completion before doing other
156 * startup, since many things rely on a complete cache. The thread is used
157 * so we don't block the main event loop for an unacceptable duration,
158 * which causes 'not responding' / spinning beachballs on Windows & Mac
160 class RebuildThread : public SGThread
163 RebuildThread(NavDataCache* cache) :
170 bool isFinished() const
172 SGGuard<SGMutex> g(_lock);
181 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
183 SGGuard<SGMutex> g(_lock);
187 NavDataCache* _cache;
188 mutable SGMutex _lock;
192 ////////////////////////////////////////////////////////////////////////////
194 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
196 class AirportTower : public FGPositioned
199 AirportTower(PositionedID& guid, PositionedID airport,
200 const string& ident, const SGGeod& pos) :
201 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
206 class NavDataCache::NavDataCachePrivate
209 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
217 transactionAborted(false)
221 ~NavDataCachePrivate()
228 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
230 readOnly = fgGetBool("/sim/fghome-readonly", false);
232 int openFlags = readOnly ? SQLITE_OPEN_READONLY :
233 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
234 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
235 // for the UTF8 / path logic here
236 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
237 sqlite3_open_v2(pathUtf8.c_str(), &db, openFlags, NULL);
239 sqlite3_stmt_ptr checkTables =
240 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
242 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
243 f_distanceCartSqrFunction, NULL, NULL);
245 execSelect(checkTables);
246 bool didCreate = false;
247 if (!readOnly && (sqlite3_column_int(checkTables, 0) == 0)) {
248 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
253 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
254 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
255 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
258 writeIntProperty("schema-version", SCHEMA_VERSION);
260 int schemaVersion = outer->readIntProperty("schema-version");
261 if (schemaVersion != SCHEMA_VERSION) {
262 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
263 throw sg_exception("Navcache schema has changed");
267 // see http://www.sqlite.org/pragma.html#pragma_cache_size
268 // for the details, small cache would cause thrashing.
269 std::ostringstream q;
270 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
277 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
278 sqlite3_finalize(stmt);
284 void checkCacheFile()
286 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
290 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
291 if (!execSelect(stmt)) {
292 throw sg_exception("DB integrity check failed to run");
295 string v = (char*) sqlite3_column_text(stmt, 0);
297 throw sg_exception("DB integrity check returned:" + v);
300 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
304 bool isCachedFileModified(const SGPath& path, bool verbose);
306 void callSqlite(int result, const string& sql)
308 if (result == SQLITE_OK)
312 if (result == SQLITE_MISUSE) {
313 errMsg = "Sqlite API abuse";
314 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
316 errMsg = sqlite3_errmsg(db);
317 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
320 throw sg_exception("Sqlite error:" + errMsg, sql);
323 void runSQL(const string& sql)
325 sqlite3_stmt_ptr stmt;
326 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
330 } catch (sg_exception&) {
331 sqlite3_finalize(stmt);
335 sqlite3_finalize(stmt);
338 sqlite3_stmt_ptr prepare(const string& sql)
340 sqlite3_stmt_ptr stmt;
341 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
342 prepared.push_back(stmt);
346 void finalize(sqlite3_stmt_ptr s)
348 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
349 if (it == prepared.end()) {
350 throw sg_exception("Finalising statement that was not prepared");
357 void reset(sqlite3_stmt_ptr stmt)
360 if (sqlite3_reset(stmt) != SQLITE_OK) {
361 string errMsg = sqlite3_errmsg(db);
362 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
363 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
367 bool execSelect(sqlite3_stmt_ptr stmt)
369 return stepSelect(stmt);
372 bool stepSelect(sqlite3_stmt_ptr stmt)
376 while (retries < MAX_RETRIES) {
377 result = sqlite3_step(stmt);
378 if (result == SQLITE_ROW) {
379 return true; // at least one result row
382 if (result == SQLITE_DONE) {
383 return false; // no result rows
386 if (result != SQLITE_BUSY) {
390 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
391 SGTimeStamp::sleepForMSec(++retries * 10);
392 } // of retry loop for DB locked
394 if (retries >= MAX_RETRIES) {
395 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
400 if (result == SQLITE_MISUSE) {
401 errMsg = "Sqlite API abuse";
402 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
404 errMsg = sqlite3_errmsg(db);
405 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
406 << ") while running:\n\t" << sqlite3_sql(stmt));
409 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
412 void execSelect1(sqlite3_stmt_ptr stmt)
414 if (!execSelect(stmt)) {
415 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
416 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
420 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
423 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
428 void execUpdate(sqlite3_stmt_ptr stmt)
436 string_list commands = simgear::strutils::split(SCHEMA_SQL, ";");
437 BOOST_FOREACH(std::string sql, commands) {
443 } // of commands in scheme loop
446 void prepareQueries()
448 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
450 beginTransactionStmt = prepare("BEGIN");
451 commitTransactionStmt = prepare("COMMIT");
452 rollbackTransactionStmt = prepare("ROLLBACK");
455 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
456 #define AND_TYPED "AND type>=?2 AND type <=?3"
457 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
458 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
459 "(path, stamp) VALUES (?,?)");
461 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
462 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
463 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
464 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
465 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
466 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
468 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
471 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
472 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
473 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
474 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
476 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
477 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
478 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
480 insertPositionedQuery = prepare("INSERT INTO positioned "
481 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
482 "cart_x, cart_y, cart_z)"
483 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
485 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
486 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
487 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
488 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
489 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
491 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
492 " VALUES (?, ?, ?)");
493 insertRunway = prepare("INSERT INTO runway "
494 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
495 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
496 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
498 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
501 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
502 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
504 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
505 "positioned.rowid=comm.rowid AND freq_khz=?1 "
506 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
508 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
509 "positioned.rowid=navaid.rowid "
510 "AND navaid.freq=?1 " AND_TYPED
511 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
513 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
514 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
516 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
517 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
519 // for an octree branch, return the child octree nodes which exist,
520 // described as a bit-mask
521 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
523 #ifdef LAZY_OCTREE_UPDATES
524 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
526 // mask the new child value into the existing one
527 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
530 // define a new octree node (with no children)
531 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
533 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
535 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
536 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
537 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
539 getAllAirports = prepare("SELECT ident, name FROM positioned WHERE type>=?1 AND type <=?2");
540 sqlite3_bind_int(getAllAirports, 1, FGPositioned::AIRPORT);
541 sqlite3_bind_int(getAllAirports, 2, FGPositioned::SEAPORT);
544 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
546 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
547 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
548 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
549 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
551 // three-way join to get the navaid ident and runway ident in a single select.
552 // we're joining positioned to itself by the navaid runway, with the complication
553 // that we need to join the navaids table to get the runway ID.
554 // we also need to filter by type to excluse glideslope (GS) matches
555 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
556 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
557 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
558 "AND (nav.type=?4 OR nav.type=?5)");
560 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
561 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
564 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
565 insertAirway = prepare("INSERT INTO airway (ident, network) "
568 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
569 "VALUES (?1, ?2, ?3, ?4)");
571 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
573 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
575 // parking / taxi-node graph
576 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
577 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
578 "VALUES (?1, ?2, ?3, ?4, ?5)");
579 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
581 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
582 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
583 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
584 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
585 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
587 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
589 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
590 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
591 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
592 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
594 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
595 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
596 "AND (type=?2 OR type=?3)");
597 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
598 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
600 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
601 "positioned.rowid = taxi_node.rowid AND airport=?1 "
602 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
605 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
606 "positioned.rowid = taxi_node.rowid AND airport=?1 "
608 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
610 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
611 "airport=?1 AND type=?4 AND "
612 "radius >= ?2 AND gate_type = ?3 AND "
613 "parking.rowid=positioned.rowid");
614 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
617 void writeIntProperty(const string& key, int value)
619 sqlite_bind_stdstring(clearProperty, 1, key);
620 execUpdate(clearProperty);
622 sqlite_bind_stdstring(writePropertyQuery, 1, key);
623 sqlite3_bind_int(writePropertyQuery, 2, value);
624 execUpdate(writePropertyQuery);
628 FGPositioned* loadById(sqlite_int64 rowId, sqlite3_int64& aptId);
630 FGAirport* loadAirport(sqlite_int64 rowId,
631 FGPositioned::Type ty,
632 const string& id, const string& name, const SGGeod& pos)
634 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
635 execSelect1(loadAirportStmt);
636 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
637 reset(loadAirportStmt);
639 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
642 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
643 const string& id, const SGGeod& pos, PositionedID apt)
645 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
646 execSelect1(loadRunwayStmt);
648 double heading = sqlite3_column_double(loadRunwayStmt, 0);
649 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
650 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
651 int surface = sqlite3_column_int(loadRunwayStmt, 3);
653 if (ty == FGPositioned::TAXIWAY) {
654 reset(loadRunwayStmt);
655 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
656 } else if (ty == FGPositioned::HELIPAD) {
657 reset(loadRunwayStmt);
658 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
660 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
661 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
662 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
663 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
664 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
665 displacedThreshold, stopway, surface);
667 if (reciprocal > 0) {
668 r->setReciprocalRunway(reciprocal);
675 reset(loadRunwayStmt);
680 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
681 const string& id, const string& name,
683 PositionedID airport)
685 sqlite3_bind_int64(loadCommStation, 1, rowId);
686 execSelect1(loadCommStation);
688 int range = sqlite3_column_int(loadCommStation, 0);
689 int freqKhz = sqlite3_column_int(loadCommStation, 1);
690 reset(loadCommStation);
692 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
693 c->setAirport(airport);
697 FGPositioned* loadNav(sqlite3_int64 rowId,
698 FGPositioned::Type ty, const string& id,
699 const string& name, const SGGeod& pos)
701 sqlite3_bind_int64(loadNavaid, 1, rowId);
702 execSelect1(loadNavaid);
704 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
705 // marker beacons are light-weight
706 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
707 (ty == FGPositioned::MM))
710 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
713 int rangeNm = sqlite3_column_int(loadNavaid, 0),
714 freq = sqlite3_column_int(loadNavaid, 1);
715 double mulituse = sqlite3_column_double(loadNavaid, 2);
716 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
720 (ty == FGPositioned::MOBILE_TACAN)
721 ? new FGMobileNavRecord
722 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway)
724 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
727 n->setColocatedDME(colocated);
732 FGPositioned* loadParking(sqlite3_int64 rowId,
733 const string& name, const SGGeod& pos,
734 PositionedID airport)
736 sqlite3_bind_int64(loadParkingPos, 1, rowId);
737 execSelect1(loadParkingPos);
739 double heading = sqlite3_column_double(loadParkingPos, 0);
740 int radius = sqlite3_column_int(loadParkingPos, 1);
741 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
742 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
743 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
744 reset(loadParkingPos);
746 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
749 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
750 PositionedID airport)
752 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
753 execSelect1(loadTaxiNodeStmt);
755 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
756 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
757 reset(loadTaxiNodeStmt);
759 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
762 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
763 const string& name, const SGGeod& pos, PositionedID apt,
766 SGVec3d cartPos(SGVec3d::fromGeod(pos));
768 sqlite3_bind_int(insertPositionedQuery, 1, ty);
769 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
770 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
771 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
772 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
773 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
774 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
777 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
778 assert(intersects(octreeLeaf->bbox(), cartPos));
779 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
781 sqlite3_bind_null(insertPositionedQuery, 8);
784 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
785 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
786 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
788 PositionedID r = execInsert(insertPositionedQuery);
792 FGPositionedList findAllByString(const string& s, const string& column,
793 FGPositioned::Filter* filter, bool exact)
796 if (!exact) query += "%";
798 // build up SQL query text
799 string matchTerm = exact ? "=?1" : " LIKE ?1";
800 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
802 sql += " " AND_TYPED;
805 // find or prepare a suitable statement frrm the SQL
806 sqlite3_stmt_ptr stmt = findByStringDict[sql];
809 findByStringDict[sql] = stmt;
812 sqlite_bind_stdstring(stmt, 1, query);
814 sqlite3_bind_int(stmt, 2, filter->minType());
815 sqlite3_bind_int(stmt, 3, filter->maxType());
818 FGPositionedList result;
819 // run the prepared SQL
820 while (stepSelect(stmt))
822 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
823 if (filter && !filter->pass(pos)) {
827 result.push_back(pos);
834 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
836 PositionedIDVec result;
837 while (stepSelect(query)) {
838 result.push_back(sqlite3_column_int64(query, 0));
844 double runwayLengthFt(PositionedID rwy)
846 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
847 execSelect1(runwayLengthFtQuery);
848 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
849 reset(runwayLengthFtQuery);
853 void flushDeferredOctreeUpdates()
855 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
856 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
857 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
858 execUpdate(updateOctreeChildren);
861 deferredOctreeUpdates.clear();
864 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
866 sqlite3_bind_int(removePOIQuery, 1, ty);
867 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
868 execUpdate(removePOIQuery);
869 reset(removePOIQuery);
877 /// the actual cache of ID -> instances. This holds an owning reference,
878 /// so once items are in the cache they will never be deleted until
879 /// the cache drops its reference
880 PositionedCache cache;
881 unsigned int cacheHits, cacheMisses;
884 * record the levels of open transaction objects we have
886 unsigned int transactionLevel;
887 bool transactionAborted;
888 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
890 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
891 carrierDatPath, airwayDatPath;
893 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
894 stampFileCache, statCacheCheck,
895 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
897 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
899 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
900 insertCommStation, insertNavaid;
901 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
903 sqlite3_stmt_ptr removePOIQuery;
905 sqlite3_stmt_ptr findClosestWithIdent;
906 // octree (spatial index) related queries
907 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
908 getOctreeLeafChildren;
910 sqlite3_stmt_ptr searchAirports, getAllAirports;
911 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
912 findNavsByFreqNoPos, findNavaidForRunway;
913 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
914 sqlite3_stmt_ptr findAirportRunway,
917 sqlite3_stmt_ptr runwayLengthFtQuery;
920 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
923 // groundnet (parking, taxi node graph)
924 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
925 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
926 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
927 setParkingPushBack, findNearestRunwayTaxiNode;
929 // since there's many permutations of ident/name queries, we create
930 // them programtically, but cache the exact query by its raw SQL once
932 std::map<string, sqlite3_stmt_ptr> findByStringDict;
934 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
937 std::set<Octree::Branch*> deferredOctreeUpdates;
939 // if we're performing a rebuild, the thread that is doing the work.
941 std::auto_ptr<RebuildThread> rebuilder;
944 //////////////////////////////////////////////////////////////////////
946 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid,
947 sqlite3_int64& aptId)
950 sqlite3_bind_int64(loadPositioned, 1, rowid);
951 execSelect1(loadPositioned);
953 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
954 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
956 PositionedID prowid = static_cast<PositionedID>(rowid);
957 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
958 string name = (char*) sqlite3_column_text(loadPositioned, 3);
959 aptId = sqlite3_column_int64(loadPositioned, 4);
960 double lon = sqlite3_column_double(loadPositioned, 5);
961 double lat = sqlite3_column_double(loadPositioned, 6);
962 double elev = sqlite3_column_double(loadPositioned, 7);
963 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
965 reset(loadPositioned);
968 case FGPositioned::AIRPORT:
969 case FGPositioned::SEAPORT:
970 case FGPositioned::HELIPORT:
971 return loadAirport(rowid, ty, ident, name, pos);
973 case FGPositioned::TOWER:
974 return new AirportTower(prowid, aptId, ident, pos);
976 case FGPositioned::RUNWAY:
977 case FGPositioned::HELIPAD:
978 case FGPositioned::TAXIWAY:
979 return loadRunway(rowid, ty, ident, pos, aptId);
981 case FGPositioned::LOC:
982 case FGPositioned::VOR:
983 case FGPositioned::GS:
984 case FGPositioned::ILS:
985 case FGPositioned::NDB:
986 case FGPositioned::OM:
987 case FGPositioned::MM:
988 case FGPositioned::IM:
989 case FGPositioned::DME:
990 case FGPositioned::TACAN:
991 case FGPositioned::MOBILE_TACAN:
992 return loadNav(rowid, ty, ident, name, pos);
994 case FGPositioned::FIX:
995 return new FGFix(rowid, ident, pos);
997 case FGPositioned::WAYPOINT:
998 case FGPositioned::COUNTRY:
999 case FGPositioned::CITY:
1000 case FGPositioned::TOWN:
1001 case FGPositioned::VILLAGE:
1003 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1007 case FGPositioned::FREQ_GROUND:
1008 case FGPositioned::FREQ_TOWER:
1009 case FGPositioned::FREQ_ATIS:
1010 case FGPositioned::FREQ_AWOS:
1011 case FGPositioned::FREQ_APP_DEP:
1012 case FGPositioned::FREQ_ENROUTE:
1013 case FGPositioned::FREQ_CLEARANCE:
1014 case FGPositioned::FREQ_UNICOM:
1015 return loadComm(rowid, ty, ident, name, pos, aptId);
1017 case FGPositioned::TAXI_NODE:
1018 return loadTaxiNode(rowid, pos, aptId);
1020 case FGPositioned::PARKING:
1021 return loadParking(rowid, ident, pos, aptId);
1028 bool NavDataCache::NavDataCachePrivate::isCachedFileModified(const SGPath& path, bool verbose)
1030 if (!path.exists()) {
1031 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1034 sqlite_bind_temp_stdstring(statCacheCheck, 1, path.str());
1035 bool isModified = true;
1036 sgDebugPriority logLevel = verbose ? SG_WARN : SG_DEBUG;
1037 if (execSelect(statCacheCheck)) {
1038 time_t modtime = sqlite3_column_int64(statCacheCheck, 0);
1039 time_t delta = std::labs(modtime - path.modTime());
1042 SG_LOG(SG_NAVCACHE, logLevel, "NavCache: rebuild required for " << path <<
1043 ". Timestamps: " << modtime << " != " << path.modTime());
1047 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1050 isModified = (delta != 0);
1052 SG_LOG(SG_NAVCACHE, logLevel, "NavCache: initial build required for " << path);
1055 reset(statCacheCheck);
1059 static NavDataCache* static_instance = NULL;
1061 NavDataCache::NavDataCache()
1063 const int MAX_TRIES = 3;
1064 SGPath homePath(globals->get_fg_home());
1066 std::ostringstream os;
1067 string_list versionParts = simgear::strutils::split(VERSION, ".");
1068 if (versionParts.size() < 2) {
1069 os << "navdata.cache";
1071 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1074 homePath.append(os.str());
1076 for (int t=0; t < MAX_TRIES; ++t) {
1078 d.reset(new NavDataCachePrivate(homePath, this));
1080 //d->checkCacheFile();
1081 // reached this point with no exception, success
1083 } catch (sg_exception& e) {
1084 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1085 << " (attempt " << t << ")");
1088 // only wipe the existing if not readonly
1089 if (!fgGetBool("/sim/fghome-readonly", false)) {
1095 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1096 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1097 Octree::global_spatialOctree =
1098 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1100 d->aptDatPath = SGPath(globals->get_fg_root());
1101 d->aptDatPath.append("Airports/apt.dat.gz");
1103 d->metarDatPath = SGPath(globals->get_fg_root());
1104 d->metarDatPath.append("Airports/metar.dat.gz");
1106 d->navDatPath = SGPath(globals->get_fg_root());
1107 d->navDatPath.append("Navaids/nav.dat.gz");
1109 d->fixDatPath = SGPath(globals->get_fg_root());
1110 d->fixDatPath.append("Navaids/fix.dat.gz");
1112 d->poiDatPath = SGPath(globals->get_fg_root());
1113 d->poiDatPath.append("Navaids/poi.dat.gz");
1115 d->carrierDatPath = SGPath(globals->get_fg_root());
1116 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1118 d->airwayDatPath = SGPath(globals->get_fg_root());
1119 d->airwayDatPath.append("Navaids/awy.dat.gz");
1122 NavDataCache::~NavDataCache()
1124 assert(static_instance == this);
1125 static_instance = NULL;
1129 NavDataCache* NavDataCache::instance()
1131 if (!static_instance) {
1132 static_instance = new NavDataCache;
1135 return static_instance;
1138 bool NavDataCache::isRebuildRequired()
1144 if (flightgear::Options::sharedInstance()->isOptionSet("restore-defaults")) {
1145 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: restore-defaults requested, will rebuild cache");
1149 if (d->isCachedFileModified(d->aptDatPath, true) ||
1150 d->isCachedFileModified(d->metarDatPath, true) ||
1151 d->isCachedFileModified(d->navDatPath, true) ||
1152 d->isCachedFileModified(d->fixDatPath, true) ||
1153 d->isCachedFileModified(d->carrierDatPath, true) ||
1154 // since POI loading is disabled on Windows, don't check for it
1155 // this caused: https://code.google.com/p/flightgear-bugs/issues/detail?id=1227
1157 d->isCachedFileModified(d->poiDatPath, true) ||
1159 d->isCachedFileModified(d->airwayDatPath, true))
1161 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1165 dropGroundnetsIfRequired();
1167 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1171 bool NavDataCache::dropGroundnetsIfRequired()
1173 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1174 if (readStringProperty("scenery_paths") != sceneryPaths) {
1175 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, dropping ground nets");
1176 dropAllGroundnets();
1177 writeStringProperty("scenery_paths", sceneryPaths);
1184 bool NavDataCache::rebuild()
1186 if (!d->rebuilder.get()) {
1187 d->rebuilder.reset(new RebuildThread(this));
1188 d->rebuilder->start();
1191 // poll the rebuild thread
1192 bool fin = d->rebuilder->isFinished();
1194 d->rebuilder.reset(); // all done!
1199 void NavDataCache::doRebuild()
1202 d->close(); // completely close the sqlite object
1203 d->path.remove(); // remove the file on disk
1204 d->init(); // start again from scratch
1206 // initialise the root octree node
1207 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1211 Transaction txn(this);
1214 airportDBLoad(d->aptDatPath);
1215 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1217 metarDataLoad(d->metarDatPath);
1218 stampCacheFile(d->aptDatPath);
1219 stampCacheFile(d->metarDatPath);
1222 loadFixes(d->fixDatPath);
1223 stampCacheFile(d->fixDatPath);
1224 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1227 navDBInit(d->navDatPath);
1228 stampCacheFile(d->navDatPath);
1229 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1233 SG_LOG(SG_NAVCACHE, SG_INFO, "stage 1 commit took:" << st.elapsedMSec());
1237 SG_LOG(SG_NAVCACHE, SG_ALERT, "SKIPPING POI load on Windows");
1240 Transaction txn(this);
1243 poiDBInit(d->poiDatPath);
1244 stampCacheFile(d->poiDatPath);
1245 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1249 SG_LOG(SG_NAVCACHE, SG_INFO, "POI commit took:" << st.elapsedMSec());
1254 Transaction txn(this);
1255 loadCarrierNav(d->carrierDatPath);
1256 stampCacheFile(d->carrierDatPath);
1259 Airway::load(d->airwayDatPath);
1260 stampCacheFile(d->airwayDatPath);
1261 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1263 d->flushDeferredOctreeUpdates();
1265 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1266 writeStringProperty("scenery_paths", sceneryPaths);
1270 SG_LOG(SG_NAVCACHE, SG_INFO, "final commit took:" << st.elapsedMSec());
1274 } catch (sg_exception& e) {
1275 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1279 int NavDataCache::readIntProperty(const string& key)
1281 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1284 if (d->execSelect(d->readPropertyQuery)) {
1285 result = sqlite3_column_int(d->readPropertyQuery, 0);
1287 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1290 d->reset(d->readPropertyQuery);
1294 double NavDataCache::readDoubleProperty(const string& key)
1296 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1297 double result = 0.0;
1298 if (d->execSelect(d->readPropertyQuery)) {
1299 result = sqlite3_column_double(d->readPropertyQuery, 0);
1301 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1304 d->reset(d->readPropertyQuery);
1308 string NavDataCache::readStringProperty(const string& key)
1310 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1312 if (d->execSelect(d->readPropertyQuery)) {
1313 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1315 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1318 d->reset(d->readPropertyQuery);
1322 void NavDataCache::writeIntProperty(const string& key, int value)
1324 d->writeIntProperty(key, value);
1327 void NavDataCache::writeStringProperty(const string& key, const string& value)
1329 sqlite_bind_stdstring(d->clearProperty, 1, key);
1330 d->execUpdate(d->clearProperty);
1332 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1333 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1334 d->execUpdate(d->writePropertyQuery);
1337 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1339 sqlite_bind_stdstring(d->clearProperty, 1, key);
1340 d->execUpdate(d->clearProperty);
1342 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1343 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1344 d->execUpdate(d->writePropertyQuery);
1347 string_list NavDataCache::readStringListProperty(const string& key)
1349 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1351 while (d->stepSelect(d->readPropertyQuery)) {
1352 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1354 d->reset(d->readPropertyQuery);
1359 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1361 sqlite_bind_stdstring(d->clearProperty, 1, key);
1362 d->execUpdate(d->clearProperty);
1364 BOOST_FOREACH(string value, values) {
1365 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1366 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1367 d->execInsert(d->writePropertyMulti);
1371 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1373 return d->isCachedFileModified(path, false);
1376 void NavDataCache::stampCacheFile(const SGPath& path)
1378 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1379 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1380 d->execInsert(d->stampFileCache);
1383 void NavDataCache::beginTransaction()
1385 if (d->transactionLevel == 0) {
1386 d->transactionAborted = false;
1387 d->stepSelect(d->beginTransactionStmt);
1388 sqlite3_reset(d->beginTransactionStmt);
1391 ++d->transactionLevel;
1394 void NavDataCache::commitTransaction()
1396 assert(d->transactionLevel > 0);
1397 if (--d->transactionLevel == 0) {
1398 // if a nested transaction aborted, we might end up here, but must
1399 // still abort the entire transaction. That's bad, but safer than
1401 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1405 while (retries < MAX_RETRIES) {
1406 result = sqlite3_step(q);
1407 if (result == SQLITE_DONE) {
1411 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1412 // what's going on here: autocommit in inactive inside BEGIN, so if
1413 // it's active, the DB was rolled-back
1414 if (sqlite3_get_autocommit(d->db)) {
1415 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1416 d->transactionAborted = true;
1420 if (result != SQLITE_BUSY) {
1424 SGTimeStamp::sleepForMSec(++retries * 10);
1425 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1426 } // of retry loop for DB busy
1429 if (result != SQLITE_DONE) {
1430 errMsg = sqlite3_errmsg(d->db);
1431 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1432 << " while running:\n\t" << sqlite3_sql(q));
1439 void NavDataCache::abortTransaction()
1441 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1443 assert(d->transactionLevel > 0);
1444 if (--d->transactionLevel == 0) {
1445 d->stepSelect(d->rollbackTransactionStmt);
1446 sqlite3_reset(d->rollbackTransactionStmt);
1449 d->transactionAborted = true;
1452 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1458 PositionedCache::iterator it = d->cache.find(rowid);
1459 if (it != d->cache.end()) {
1461 return it->second; // cache it
1464 sqlite3_int64 aptId;
1465 FGPositioned* pos = d->loadById(rowid, aptId);
1466 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1469 // when we loaded an ILS, we must apply per-airport changes
1470 if ((pos->type() == FGPositioned::ILS) && (aptId > 0)) {
1471 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1472 apt->validateILSData();
1478 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1481 // airports have their pos computed based on the avergae runway centres
1482 // so the pos isn't available immediately. Pass a dummy pos and avoid
1483 // doing spatial indexing until later
1484 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1486 false /* spatial index */);
1488 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1489 d->execInsert(d->insertAirport);
1494 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1496 if (d->cache.find(item) != d->cache.end()) {
1497 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1498 d->cache[item]->modifyPosition(pos);
1501 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1503 sqlite3_bind_int(d->setAirportPos, 1, item);
1504 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1505 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1506 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1508 // bug 905; the octree leaf may change here, but the leaf may already be
1509 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1510 // we may be called here as a result of loading one of those leaf's children.
1511 // instead of dealing with all those possibilites, such as modifying
1512 // the in-memory leaf's STL child container, we simply leave the runtime
1513 // structures alone. This is fine providing items do no move very far, since
1514 // all the spatial searches ultimately use the items' real cartesian position,
1515 // which was updated above.
1516 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1517 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1519 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1520 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1521 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1524 d->execUpdate(d->setAirportPos);
1527 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1529 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1530 pos, airportId, true /* spatial index */);
1534 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1535 const SGGeod& pos, PositionedID apt,
1536 double heading, double length, double width, double displacedThreshold,
1537 double stopway, int surfaceCode)
1539 // only runways are spatially indexed; don't bother indexing taxiways
1541 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1543 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1545 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1546 sqlite3_bind_double(d->insertRunway, 2, heading);
1547 sqlite3_bind_double(d->insertRunway, 3, length);
1548 sqlite3_bind_double(d->insertRunway, 4, width);
1549 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1550 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1551 sqlite3_bind_double(d->insertRunway, 7, stopway);
1553 return d->execInsert(d->insertRunway);
1556 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1558 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1559 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1560 d->execUpdate(d->setRunwayReciprocal);
1562 // and the opposite direction too!
1563 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1564 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1565 d->execUpdate(d->setRunwayReciprocal);
1568 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1570 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1571 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1572 d->execUpdate(d->setRunwayILS);
1574 // and the in-memory one
1575 if (d->cache.find(runway) != d->cache.end()) {
1576 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1577 instance->setILS(ils);
1582 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1583 const string& name, const SGGeod& pos,
1584 int freq, int range, double multiuse,
1585 PositionedID apt, PositionedID runway)
1587 bool spatialIndex = true;
1588 if (ty == FGPositioned::MOBILE_TACAN) {
1589 spatialIndex = false;
1592 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1594 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1595 sqlite3_bind_int(d->insertNavaid, 2, freq);
1596 sqlite3_bind_int(d->insertNavaid, 3, range);
1597 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1598 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1599 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1600 return d->execInsert(d->insertNavaid);
1603 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1605 // Update DB entries...
1606 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1607 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1608 d->execUpdate(d->setNavaidColocated);
1610 // ...and the in-memory copy of the navrecord
1611 if (d->cache.find(navaid) != d->cache.end()) {
1612 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1613 rec->setColocatedDME(colocatedDME);
1617 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1618 const string& name, const SGGeod& pos, int freq, int range,
1621 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1622 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1623 sqlite3_bind_int(d->insertCommStation, 2, freq);
1624 sqlite3_bind_int(d->insertCommStation, 3, range);
1625 return d->execInsert(d->insertCommStation);
1628 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1630 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1633 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1635 return d->insertPositioned(ty, ident, string(), aPos, 0,
1636 true /* spatial index */);
1639 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1641 d->removePositionedWithIdent(ty, aIdent);
1642 // should remove from the live cache too?
1647 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1649 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1650 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1651 d->execUpdate(d->setAirportMetar);
1654 //------------------------------------------------------------------------------
1655 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1656 FGPositioned::Filter* filter,
1659 return d->findAllByString(s, "ident", filter, exact);
1662 //------------------------------------------------------------------------------
1663 FGPositionedList NavDataCache::findAllWithName( const string& s,
1664 FGPositioned::Filter* filter,
1667 return d->findAllByString(s, "name", filter, exact);
1670 //------------------------------------------------------------------------------
1671 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1673 FGPositioned::Filter* aFilter )
1675 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1677 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1678 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1679 } else { // full type range
1680 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1681 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1684 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1685 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1686 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1687 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1689 FGPositionedRef result;
1691 while (d->stepSelect(d->findClosestWithIdent)) {
1692 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1693 if (aFilter && !aFilter->pass(pos)) {
1701 d->reset(d->findClosestWithIdent);
1706 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1708 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1709 d->execSelect1(d->getOctreeChildren);
1710 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1711 d->reset(d->getOctreeChildren);
1715 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1717 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1718 d->execInsert(d->insertOctree);
1720 #ifdef LAZY_OCTREE_UPDATES
1721 d->deferredOctreeUpdates.insert(pr);
1723 // lowest three bits of node ID are 0..7 index of the child in the parent
1724 int childIndex = nd->guid() & 0x07;
1726 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1727 // mask has bit N set where child N exists
1728 int childMask = 1 << childIndex;
1729 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1730 d->execUpdate(d->updateOctreeChildren);
1735 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1737 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1739 TypedPositionedVec r;
1740 while (d->stepSelect(d->getOctreeLeafChildren)) {
1741 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1742 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1743 r.push_back(std::make_pair(ty,
1744 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1747 d->reset(d->getOctreeLeafChildren);
1753 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1754 * implement the AirportList dialog. It's unfortunate that it needs to reside
1755 * here, but for now it's least ugly solution.
1757 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1759 sqlite3_stmt_ptr stmt;
1760 unsigned int numMatches = 0, numAllocated = 16;
1761 string searchTerm("%" + aFilter + "%");
1762 if (aFilter.empty()) {
1763 stmt = d->getAllAirports;
1764 numAllocated = 4096; // start much larger for all airports
1766 stmt = d->searchAirports;
1767 sqlite_bind_stdstring(stmt, 1, searchTerm);
1770 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1771 while (d->stepSelect(stmt)) {
1772 if ((numMatches + 1) >= numAllocated) {
1773 numAllocated <<= 1; // double in size!
1774 // reallocate results array
1775 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1776 memcpy(nresult, result, sizeof(char*) * numMatches);
1781 // nasty code to avoid excessive string copying and allocations.
1782 // We format results as follows (note whitespace!):
1783 // ' name-of-airport-chars (ident)'
1784 // so the total length is:
1785 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1786 // which gives a grand total of 7 + name-length + icao-length.
1787 // note the ident can be three letters (non-ICAO local strip), four
1788 // (default ICAO) or more (extended format ICAO)
1789 int nameLength = sqlite3_column_bytes(stmt, 1);
1790 int icaoLength = sqlite3_column_bytes(stmt, 0);
1791 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1794 memcpy(dst, sqlite3_column_text(stmt, 1), nameLength);
1800 memcpy(dst, sqlite3_column_text(stmt, 0), icaoLength);
1805 result[numMatches++] = entry;
1808 result[numMatches] = NULL; // end of list marker
1814 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1816 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1818 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1819 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1820 } else { // full type range
1821 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1822 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1825 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1826 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1827 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1828 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1829 FGPositionedRef result;
1831 while (d->execSelect(d->findCommByFreq)) {
1832 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1833 if (aFilter && !aFilter->pass(p)) {
1841 d->reset(d->findCommByFreq);
1846 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1848 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1850 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1851 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1852 } else { // full type range
1853 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1854 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1857 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1858 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1859 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1860 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1862 return d->selectIds(d->findNavsByFreq);
1866 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1868 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1870 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1871 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1872 } else { // full type range
1873 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1874 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1877 return d->selectIds(d->findNavsByFreqNoPos);
1881 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1882 FGPositioned::Type maxTy)
1884 if (maxTy == FGPositioned::INVALID) {
1885 maxTy = ty; // single-type range
1888 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1889 sqlite3_bind_int(d->getAirportItems, 2, ty);
1890 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1892 return d->selectIds(d->getAirportItems);
1896 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1897 const std::string& ident)
1899 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1900 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1901 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1902 PositionedID result = 0;
1904 if (d->execSelect(d->getAirportItemByIdent)) {
1905 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1908 d->reset(d->getAirportItemByIdent);
1913 NavDataCache::findAirportRunway(const std::string& aName)
1915 if (aName.empty()) {
1916 return AirportRunwayPair();
1919 string_list parts = simgear::strutils::split(aName);
1920 if (parts.size() < 2) {
1921 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1922 return AirportRunwayPair();
1925 AirportRunwayPair result;
1926 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1927 sqlite_bind_stdstring(d->findAirportRunway, 2, cleanRunwayNo(parts[1]));
1929 if (d->execSelect(d->findAirportRunway)) {
1930 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1931 sqlite3_column_int64(d->findAirportRunway, 1));
1934 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1937 d->reset(d->findAirportRunway);
1942 NavDataCache::findILS(PositionedID airport, const string& aRunway, const string& navIdent)
1944 string runway(cleanRunwayNo(aRunway));
1946 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1947 sqlite3_bind_int64(d->findILS, 2, airport);
1948 sqlite_bind_stdstring(d->findILS, 3, runway);
1949 PositionedID result = 0;
1950 if (d->execSelect(d->findILS)) {
1951 result = sqlite3_column_int64(d->findILS, 0);
1954 d->reset(d->findILS);
1958 int NavDataCache::findAirway(int network, const string& aName)
1960 sqlite3_bind_int(d->findAirway, 1, network);
1961 sqlite_bind_stdstring(d->findAirway, 2, aName);
1964 if (d->execSelect(d->findAirway)) {
1966 airway = sqlite3_column_int(d->findAirway, 0);
1968 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1969 sqlite3_bind_int(d->insertAirway, 2, network);
1970 airway = d->execInsert(d->insertAirway);
1973 d->reset(d->findAirway);
1977 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1979 // assume all edges are bidirectional for the moment
1980 for (int i=0; i<2; ++i) {
1981 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1982 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1983 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1984 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1985 d->execInsert(d->insertAirwayEdge);
1987 std::swap(from, to);
1991 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1993 sqlite3_bind_int(d->isPosInAirway, 1, network);
1994 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1995 bool ok = d->execSelect(d->isPosInAirway);
1996 d->reset(d->isPosInAirway);
2001 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
2003 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
2004 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
2006 AirwayEdgeVec result;
2007 while (d->stepSelect(d->airwayEdgesFrom)) {
2008 result.push_back(AirwayEdge(
2009 sqlite3_column_int(d->airwayEdgesFrom, 0),
2010 sqlite3_column_int64(d->airwayEdgesFrom, 1)
2014 d->reset(d->airwayEdgesFrom);
2018 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2020 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2021 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2023 PositionedID result = 0;
2024 if (d->execSelect(d->findNavaidForRunway)) {
2025 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2028 d->reset(d->findNavaidForRunway);
2033 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2034 PositionedID aAirport,
2035 double aHeading, int aRadius, const std::string& aAircraftType,
2036 const std::string& aAirlines)
2038 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2040 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2041 // the appropriate pushback flag.
2042 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2043 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2044 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2045 d->execInsert(d->insertTaxiNode);
2047 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2048 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2049 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2050 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2051 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2052 return d->execInsert(d->insertParkingPos);
2055 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2057 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2058 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2059 d->execUpdate(d->setParkingPushBack);
2063 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2065 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2066 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2067 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2068 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2069 return d->execInsert(d->insertTaxiNode);
2072 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2074 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2075 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2076 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2077 d->execInsert(d->insertTaxiEdge);
2080 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2082 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2083 sqlite3_bind_int64(q, 1, aAirport);
2084 return d->selectIds(q);
2087 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2089 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2090 d->execUpdate(d->markTaxiNodeAsPushback);
2093 static double headingDifferenceDeg(double crs1, double crs2)
2095 double diff = crs2 - crs1;
2096 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2100 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2101 bool onRunway, FGRunway* aRunway)
2103 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2104 sqlite3_bind_int64(q, 1, airport);
2106 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2107 sqlite3_bind_double(q, 2, cartPos.x());
2108 sqlite3_bind_double(q, 3, cartPos.y());
2109 sqlite3_bind_double(q, 4, cartPos.z());
2111 PositionedID result = 0;
2112 while (d->execSelect(q)) {
2113 PositionedID id = sqlite3_column_int64(q, 0);
2119 // ensure found node lies on the runway
2120 FGPositionedRef node = loadById(id);
2121 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2122 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2132 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2134 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2135 sqlite3_bind_int64(q, 1, pos);
2136 return d->selectIds(q);
2139 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2142 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2143 sqlite3_bind_int(d->findAirportParking, 2, radius);
2144 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2146 return d->selectIds(d->findAirportParking);
2149 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2151 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2152 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2153 sqlite3_bind_int64(q, 2, aAirport);
2156 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2157 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2158 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2159 sqlite3_bind_int64(q, 3, aAirport);
2162 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2163 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2164 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2165 sqlite3_bind_int64(q, 3, aAirport);
2168 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2169 sqlite3_bind_int64(q, 1, aAirport);
2173 void NavDataCache::dropAllGroundnets()
2175 SG_LOG(SG_NAVCACHE, SG_INFO, "dropping ground-net data");
2177 d->runSQL("DELETE FROM groundnet_edge");
2178 d->runSQL("DELETE FROM parking");
2179 d->runSQL("DELETE FROM taxi_node");
2181 sqlite3_stmt_ptr q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2)");
2182 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2183 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2185 commitTransaction();
2188 bool NavDataCache::isReadOnly() const
2193 /////////////////////////////////////////////////////////////////////////////////////////
2194 // Transaction RAII object
2196 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2201 _instance->beginTransaction();
2204 NavDataCache::Transaction::~Transaction()
2207 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2208 _instance->abortTransaction();
2212 void NavDataCache::Transaction::commit()
2214 assert(!_committed);
2216 _instance->commitTransaction();
2219 } // of namespace flightgear