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 "markerbeacon.hxx"
62 #include "navrecord.hxx"
63 #include <Airports/airport.hxx>
64 #include <Airports/runways.hxx>
65 #include <ATC/CommStation.hxx>
67 #include <Navaids/fixlist.hxx>
68 #include <Navaids/navdb.hxx>
69 #include "PositionedOctree.hxx"
70 #include <Airports/apt_loader.hxx>
71 #include <Navaids/airways.hxx>
73 #include <Airports/parking.hxx>
74 #include <Airports/gnnode.hxx>
75 #include "CacheSchema.h"
79 #define SG_NAVCACHE SG_NAVAID
80 //#define LAZY_OCTREE_UPDATES 1
84 const int MAX_RETRIES = 10;
86 const int CACHE_SIZE_KBYTES= 32 * 1024;
88 // bind a std::string to a sqlite statement. The std::string must live the
89 // entire duration of the statement execution - do not pass a temporary
90 // std::string, or the compiler may delete it, freeing the C-string storage,
91 // and causing subtle memory corruption bugs!
92 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
94 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
97 // variant of the above, which does not care about the lifetime of the
99 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
101 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
104 typedef sqlite3_stmt* sqlite3_stmt_ptr;
106 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
112 SGVec3d posA(sqlite3_value_double(argv[0]),
113 sqlite3_value_double(argv[1]),
114 sqlite3_value_double(argv[2]));
116 SGVec3d posB(sqlite3_value_double(argv[3]),
117 sqlite3_value_double(argv[4]),
118 sqlite3_value_double(argv[5]));
119 sqlite3_result_double(ctx, distSqr(posA, posB));
123 static string cleanRunwayNo(const string& aRwyNo)
125 if (aRwyNo[0] == 'x') {
126 return string(); // no ident for taxiways
129 string result(aRwyNo);
130 // canonicalise runway ident
131 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
132 result = "0" + aRwyNo;
135 // trim off trailing garbage
136 if (result.size() > 2) {
137 char suffix = toupper(result[2]);
139 result = result.substr(0, 2);
146 } // anonymous namespace
152 * Thread encapsulating a cache rebuild. This is not used to parallelise
153 * the rebuild - we must still wait until completion before doing other
154 * startup, since many things rely on a complete cache. The thread is used
155 * so we don't block the main event loop for an unacceptable duration,
156 * which causes 'not responding' / spinning beachballs on Windows & Mac
158 class RebuildThread : public SGThread
161 RebuildThread(NavDataCache* cache) :
168 bool isFinished() const
170 SGGuard<SGMutex> g(_lock);
179 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
181 SGGuard<SGMutex> g(_lock);
185 NavDataCache* _cache;
186 mutable SGMutex _lock;
190 ////////////////////////////////////////////////////////////////////////////
192 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
194 class AirportTower : public FGPositioned
197 AirportTower(PositionedID& guid, PositionedID airport,
198 const string& ident, const SGGeod& pos) :
199 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
204 class NavDataCache::NavDataCachePrivate
207 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
214 transactionAborted(false)
218 ~NavDataCachePrivate()
225 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
227 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
228 // for the logic here. Sigh.
229 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
230 sqlite3_open_v2(pathUtf8.c_str(), &db,
231 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
234 sqlite3_stmt_ptr checkTables =
235 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
237 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
238 f_distanceCartSqrFunction, NULL, NULL);
240 execSelect(checkTables);
241 bool didCreate = false;
242 if (sqlite3_column_int(checkTables, 0) == 0) {
243 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
248 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
249 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
250 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
253 writeIntProperty("schema-version", SCHEMA_VERSION);
255 int schemaVersion = outer->readIntProperty("schema-version");
256 if (schemaVersion != SCHEMA_VERSION) {
257 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
258 throw sg_exception("Navcache schema has changed");
262 // see http://www.sqlite.org/pragma.html#pragma_cache_size
263 // for the details, small cache would cause thrashing.
264 std::ostringstream q;
265 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
272 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
273 sqlite3_finalize(stmt);
279 void checkCacheFile()
281 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
285 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
286 if (!execSelect(stmt)) {
287 throw sg_exception("DB integrity check failed to run");
290 string v = (char*) sqlite3_column_text(stmt, 0);
292 throw sg_exception("DB integrity check returned:" + v);
295 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
299 void callSqlite(int result, const string& sql)
301 if (result == SQLITE_OK)
305 if (result == SQLITE_MISUSE) {
306 errMsg = "Sqlite API abuse";
307 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
309 errMsg = sqlite3_errmsg(db);
310 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
313 throw sg_exception("Sqlite error:" + errMsg, sql);
316 void runSQL(const string& sql)
318 sqlite3_stmt_ptr stmt;
319 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
323 } catch (sg_exception&) {
324 sqlite3_finalize(stmt);
328 sqlite3_finalize(stmt);
331 sqlite3_stmt_ptr prepare(const string& sql)
333 sqlite3_stmt_ptr stmt;
334 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
335 prepared.push_back(stmt);
339 void finalize(sqlite3_stmt_ptr s)
341 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
342 if (it == prepared.end()) {
343 throw sg_exception("Finalising statement that was not prepared");
350 void reset(sqlite3_stmt_ptr stmt)
353 if (sqlite3_reset(stmt) != SQLITE_OK) {
354 string errMsg = sqlite3_errmsg(db);
355 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
356 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
360 bool execSelect(sqlite3_stmt_ptr stmt)
362 return stepSelect(stmt);
365 bool stepSelect(sqlite3_stmt_ptr stmt)
369 while (retries < MAX_RETRIES) {
370 result = sqlite3_step(stmt);
371 if (result == SQLITE_ROW) {
372 return true; // at least one result row
375 if (result == SQLITE_DONE) {
376 return false; // no result rows
379 if (result != SQLITE_BUSY) {
383 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
384 SGTimeStamp::sleepForMSec(++retries * 10);
385 } // of retry loop for DB locked
387 if (retries >= MAX_RETRIES) {
388 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
393 if (result == SQLITE_MISUSE) {
394 errMsg = "Sqlite API abuse";
395 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
397 errMsg = sqlite3_errmsg(db);
398 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
399 << ") while running:\n\t" << sqlite3_sql(stmt));
402 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
405 void execSelect1(sqlite3_stmt_ptr stmt)
407 if (!execSelect(stmt)) {
408 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
409 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
413 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
416 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
421 void execUpdate(sqlite3_stmt_ptr stmt)
429 string_list commands = simgear::strutils::split(SCHEMA_SQL, ";");
430 BOOST_FOREACH(std::string sql, commands) {
436 } // of commands in scheme loop
439 void prepareQueries()
441 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
443 beginTransactionStmt = prepare("BEGIN");
444 commitTransactionStmt = prepare("COMMIT");
445 rollbackTransactionStmt = prepare("ROLLBACK");
448 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
449 #define AND_TYPED "AND type>=?2 AND type <=?3"
450 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
451 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
452 "(path, stamp) VALUES (?,?)");
454 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
455 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
456 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
457 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
458 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
459 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
461 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
464 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
465 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
466 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
467 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
469 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
470 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
471 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
472 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
474 insertPositionedQuery = prepare("INSERT INTO positioned "
475 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
476 "cart_x, cart_y, cart_z)"
477 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
479 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
480 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
481 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
482 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
483 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
484 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
486 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
487 " VALUES (?, ?, ?)");
488 insertRunway = prepare("INSERT INTO runway "
489 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
490 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
491 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
493 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
496 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
497 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
499 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
500 "positioned.rowid=comm.rowid AND freq_khz=?1 "
501 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
503 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
504 "positioned.rowid=navaid.rowid "
505 "AND navaid.freq=?1 " AND_TYPED
506 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
508 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
509 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
511 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
512 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
514 // for an octree branch, return the child octree nodes which exist,
515 // described as a bit-mask
516 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
518 #ifdef LAZY_OCTREE_UPDATES
519 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
521 // mask the new child value into the existing one
522 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
525 // define a new octree node (with no children)
526 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
528 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
530 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
531 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
532 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
534 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
536 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
537 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
538 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
539 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
541 // three-way join to get the navaid ident and runway ident in a single select.
542 // we're joining positioned to itself by the navaid runway, with the complication
543 // that we need to join the navaids table to get the runway ID.
544 // we also need to filter by type to excluse glideslope (GS) matches
545 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
546 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
547 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
548 "AND (nav.type=?4 OR nav.type=?5)");
550 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
551 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
554 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
555 insertAirway = prepare("INSERT INTO airway (ident, network) "
558 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
559 "VALUES (?1, ?2, ?3, ?4)");
561 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
563 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
565 // parking / taxi-node graph
566 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
567 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
568 "VALUES (?1, ?2, ?3, ?4, ?5)");
569 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
571 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
572 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
573 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
574 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
575 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
577 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
579 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
580 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
581 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
582 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
584 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
585 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
586 "AND (type=?2 OR type=?3)");
587 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
588 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
590 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
591 "positioned.rowid = taxi_node.rowid AND airport=?1 "
592 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
595 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
596 "positioned.rowid = taxi_node.rowid AND airport=?1 "
598 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
600 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
601 "airport=?1 AND type=?4 AND "
602 "radius >= ?2 AND gate_type = ?3 AND "
603 "parking.rowid=positioned.rowid");
604 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
607 void writeIntProperty(const string& key, int value)
609 sqlite_bind_stdstring(clearProperty, 1, key);
610 execUpdate(clearProperty);
612 sqlite_bind_stdstring(writePropertyQuery, 1, key);
613 sqlite3_bind_int(writePropertyQuery, 2, value);
614 execUpdate(writePropertyQuery);
618 FGPositioned* loadById(sqlite_int64 rowId);
620 FGAirport* loadAirport(sqlite_int64 rowId,
621 FGPositioned::Type ty,
622 const string& id, const string& name, const SGGeod& pos)
624 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
625 execSelect1(loadAirportStmt);
626 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
627 reset(loadAirportStmt);
629 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
632 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
633 const string& id, const SGGeod& pos, PositionedID apt)
635 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
636 execSelect1(loadRunwayStmt);
638 double heading = sqlite3_column_double(loadRunwayStmt, 0);
639 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
640 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
641 int surface = sqlite3_column_int(loadRunwayStmt, 3);
643 if (ty == FGPositioned::TAXIWAY) {
644 reset(loadRunwayStmt);
645 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
646 } else if (ty == FGPositioned::HELIPAD) {
647 reset(loadRunwayStmt);
648 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
650 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
651 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
652 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
653 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
654 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
655 displacedThreshold, stopway, surface);
657 if (reciprocal > 0) {
658 r->setReciprocalRunway(reciprocal);
665 reset(loadRunwayStmt);
670 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
671 const string& id, const string& name,
673 PositionedID airport)
675 sqlite3_bind_int64(loadCommStation, 1, rowId);
676 execSelect1(loadCommStation);
678 int range = sqlite3_column_int(loadCommStation, 0);
679 int freqKhz = sqlite3_column_int(loadCommStation, 1);
680 reset(loadCommStation);
682 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
683 c->setAirport(airport);
687 FGPositioned* loadNav(sqlite3_int64 rowId,
688 FGPositioned::Type ty, const string& id,
689 const string& name, const SGGeod& pos)
691 sqlite3_bind_int64(loadNavaid, 1, rowId);
692 execSelect1(loadNavaid);
694 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
695 // marker beacons are light-weight
696 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
697 (ty == FGPositioned::MM))
700 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
703 int rangeNm = sqlite3_column_int(loadNavaid, 0),
704 freq = sqlite3_column_int(loadNavaid, 1);
705 double mulituse = sqlite3_column_double(loadNavaid, 2);
706 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
709 FGNavRecord* n = new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
711 n->setColocatedDME(colocated);
717 FGPositioned* loadParking(sqlite3_int64 rowId,
718 const string& name, const SGGeod& pos,
719 PositionedID airport)
721 sqlite3_bind_int64(loadParkingPos, 1, rowId);
722 execSelect1(loadParkingPos);
724 double heading = sqlite3_column_double(loadParkingPos, 0);
725 int radius = sqlite3_column_int(loadParkingPos, 1);
726 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
727 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
728 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
729 reset(loadParkingPos);
731 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
734 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
735 PositionedID airport)
737 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
738 execSelect1(loadTaxiNodeStmt);
740 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
741 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
742 reset(loadTaxiNodeStmt);
744 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
747 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
748 const string& name, const SGGeod& pos, PositionedID apt,
751 SGVec3d cartPos(SGVec3d::fromGeod(pos));
753 sqlite3_bind_int(insertPositionedQuery, 1, ty);
754 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
755 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
756 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
757 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
758 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
759 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
762 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
763 assert(intersects(octreeLeaf->bbox(), cartPos));
764 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
766 sqlite3_bind_null(insertPositionedQuery, 8);
769 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
770 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
771 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
773 PositionedID r = execInsert(insertPositionedQuery);
777 FGPositionedList findAllByString(const string& s, const string& column,
778 FGPositioned::Filter* filter, bool exact)
781 if (!exact) query += "%";
783 // build up SQL query text
784 string matchTerm = exact ? "=?1" : " LIKE ?1";
785 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
787 sql += " " AND_TYPED;
790 // find or prepare a suitable statement frrm the SQL
791 sqlite3_stmt_ptr stmt = findByStringDict[sql];
794 findByStringDict[sql] = stmt;
797 sqlite_bind_stdstring(stmt, 1, query);
799 sqlite3_bind_int(stmt, 2, filter->minType());
800 sqlite3_bind_int(stmt, 3, filter->maxType());
803 FGPositionedList result;
804 // run the prepared SQL
805 while (stepSelect(stmt))
807 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
808 if (filter && !filter->pass(pos)) {
812 result.push_back(pos);
819 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
821 PositionedIDVec result;
822 while (stepSelect(query)) {
823 result.push_back(sqlite3_column_int64(query, 0));
829 double runwayLengthFt(PositionedID rwy)
831 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
832 execSelect1(runwayLengthFtQuery);
833 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
834 reset(runwayLengthFtQuery);
838 void flushDeferredOctreeUpdates()
840 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
841 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
842 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
843 execUpdate(updateOctreeChildren);
846 deferredOctreeUpdates.clear();
849 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
851 sqlite3_bind_int(removePOIQuery, 1, ty);
852 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
853 execUpdate(removePOIQuery);
854 reset(removePOIQuery);
861 /// the actual cache of ID -> instances. This holds an owning reference,
862 /// so once items are in the cache they will never be deleted until
863 /// the cache drops its reference
864 PositionedCache cache;
865 unsigned int cacheHits, cacheMisses;
868 * record the levels of open transaction objects we have
870 unsigned int transactionLevel;
871 bool transactionAborted;
872 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
874 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
875 carrierDatPath, airwayDatPath;
877 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
878 stampFileCache, statCacheCheck,
879 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
881 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
883 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
884 insertCommStation, insertNavaid;
885 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
886 setAirportPos, updateRunwayThreshold, updateILS;
887 sqlite3_stmt_ptr removePOIQuery;
889 sqlite3_stmt_ptr findClosestWithIdent;
890 // octree (spatial index) related queries
891 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
892 getOctreeLeafChildren;
894 sqlite3_stmt_ptr searchAirports;
895 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
896 findNavsByFreqNoPos, findNavaidForRunway;
897 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
898 sqlite3_stmt_ptr findAirportRunway,
901 sqlite3_stmt_ptr runwayLengthFtQuery;
904 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
907 // groundnet (parking, taxi node graph)
908 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
909 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
910 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
911 setParkingPushBack, findNearestRunwayTaxiNode;
913 // since there's many permutations of ident/name queries, we create
914 // them programtically, but cache the exact query by its raw SQL once
916 std::map<string, sqlite3_stmt_ptr> findByStringDict;
918 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
921 std::set<Octree::Branch*> deferredOctreeUpdates;
923 // if we're performing a rebuild, the thread that is doing the work.
925 std::auto_ptr<RebuildThread> rebuilder;
928 //////////////////////////////////////////////////////////////////////
930 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid)
933 sqlite3_bind_int64(loadPositioned, 1, rowid);
934 execSelect1(loadPositioned);
936 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
937 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
939 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
940 string name = (char*) sqlite3_column_text(loadPositioned, 3);
941 sqlite3_int64 aptId = sqlite3_column_int64(loadPositioned, 4);
942 double lon = sqlite3_column_double(loadPositioned, 5);
943 double lat = sqlite3_column_double(loadPositioned, 6);
944 double elev = sqlite3_column_double(loadPositioned, 7);
945 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
947 reset(loadPositioned);
950 case FGPositioned::AIRPORT:
951 case FGPositioned::SEAPORT:
952 case FGPositioned::HELIPORT:
953 return loadAirport(rowid, ty, ident, name, pos);
955 case FGPositioned::TOWER:
956 return new AirportTower(rowid, aptId, ident, pos);
958 case FGPositioned::RUNWAY:
959 case FGPositioned::HELIPAD:
960 case FGPositioned::TAXIWAY:
961 return loadRunway(rowid, ty, ident, pos, aptId);
963 case FGPositioned::LOC:
964 case FGPositioned::VOR:
965 case FGPositioned::GS:
966 case FGPositioned::ILS:
967 case FGPositioned::NDB:
968 case FGPositioned::OM:
969 case FGPositioned::MM:
970 case FGPositioned::IM:
971 case FGPositioned::DME:
972 case FGPositioned::TACAN:
973 case FGPositioned::MOBILE_TACAN:
976 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
977 if (apt->validateILSData()) {
978 // queried data above is probably invalid, force us to go around again
979 // (the next time through, validateILSData will return false)
980 return outer->loadById(rowid);
984 return loadNav(rowid, ty, ident, name, pos);
987 case FGPositioned::FIX:
988 return new FGFix(rowid, ident, pos);
990 case FGPositioned::WAYPOINT:
991 case FGPositioned::COUNTRY:
992 case FGPositioned::CITY:
993 case FGPositioned::TOWN:
994 case FGPositioned::VILLAGE:
996 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1000 case FGPositioned::FREQ_GROUND:
1001 case FGPositioned::FREQ_TOWER:
1002 case FGPositioned::FREQ_ATIS:
1003 case FGPositioned::FREQ_AWOS:
1004 case FGPositioned::FREQ_APP_DEP:
1005 case FGPositioned::FREQ_ENROUTE:
1006 case FGPositioned::FREQ_CLEARANCE:
1007 case FGPositioned::FREQ_UNICOM:
1008 return loadComm(rowid, ty, ident, name, pos, aptId);
1010 case FGPositioned::TAXI_NODE:
1011 return loadTaxiNode(rowid, pos, aptId);
1013 case FGPositioned::PARKING:
1014 return loadParking(rowid, ident, pos, aptId);
1022 static NavDataCache* static_instance = NULL;
1024 NavDataCache::NavDataCache()
1026 const int MAX_TRIES = 3;
1027 SGPath homePath(globals->get_fg_home());
1029 std::ostringstream os;
1030 string_list versionParts = simgear::strutils::split(VERSION, ".");
1031 if (versionParts.size() < 2) {
1032 os << "navdata.cache";
1034 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1037 homePath.append(os.str());
1039 for (int t=0; t < MAX_TRIES; ++t) {
1041 d.reset(new NavDataCachePrivate(homePath, this));
1043 //d->checkCacheFile();
1044 // reached this point with no exception, success
1046 } catch (sg_exception& e) {
1047 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1048 << " (attempt " << t << ")");
1054 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1055 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1056 Octree::global_spatialOctree =
1057 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1059 d->aptDatPath = SGPath(globals->get_fg_root());
1060 d->aptDatPath.append("Airports/apt.dat.gz");
1062 d->metarDatPath = SGPath(globals->get_fg_root());
1063 d->metarDatPath.append("Airports/metar.dat.gz");
1065 d->navDatPath = SGPath(globals->get_fg_root());
1066 d->navDatPath.append("Navaids/nav.dat.gz");
1068 d->fixDatPath = SGPath(globals->get_fg_root());
1069 d->fixDatPath.append("Navaids/fix.dat.gz");
1071 d->poiDatPath = SGPath(globals->get_fg_root());
1072 d->poiDatPath.append("Navaids/poi.dat.gz");
1074 d->carrierDatPath = SGPath(globals->get_fg_root());
1075 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1077 d->airwayDatPath = SGPath(globals->get_fg_root());
1078 d->airwayDatPath.append("Navaids/awy.dat.gz");
1081 NavDataCache::~NavDataCache()
1083 assert(static_instance == this);
1084 static_instance = NULL;
1088 NavDataCache* NavDataCache::instance()
1090 if (!static_instance) {
1091 static_instance = new NavDataCache;
1094 return static_instance;
1097 bool NavDataCache::isRebuildRequired()
1099 if (isCachedFileModified(d->aptDatPath) ||
1100 isCachedFileModified(d->metarDatPath) ||
1101 isCachedFileModified(d->navDatPath) ||
1102 isCachedFileModified(d->fixDatPath) ||
1103 // since POI loading is disabled on Windows, don't check for it
1104 // this caused: https://code.google.com/p/flightgear-bugs/issues/detail?id=1227
1106 isCachedFileModified(d->poiDatPath) ||
1108 isCachedFileModified(d->airwayDatPath))
1110 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1114 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1115 if (readStringProperty("scenery_paths") != sceneryPaths) {
1116 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1120 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1124 bool NavDataCache::rebuild()
1126 if (!d->rebuilder.get()) {
1127 d->rebuilder.reset(new RebuildThread(this));
1128 d->rebuilder->start();
1131 // poll the rebuild thread
1132 bool fin = d->rebuilder->isFinished();
1134 d->rebuilder.reset(); // all done!
1139 void NavDataCache::doRebuild()
1142 d->close(); // completely close the sqlite object
1143 d->path.remove(); // remove the file on disk
1144 d->init(); // start again from scratch
1146 // initialise the root octree node
1147 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1151 Transaction txn(this);
1154 airportDBLoad(d->aptDatPath);
1155 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1157 metarDataLoad(d->metarDatPath);
1158 stampCacheFile(d->aptDatPath);
1159 stampCacheFile(d->metarDatPath);
1162 loadFixes(d->fixDatPath);
1163 stampCacheFile(d->fixDatPath);
1164 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1167 navDBInit(d->navDatPath);
1168 stampCacheFile(d->navDatPath);
1169 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1173 SG_LOG(SG_NAVCACHE, SG_INFO, "stage 1 commit took:" << st.elapsedMSec());
1177 SG_LOG(SG_NAVCACHE, SG_ALERT, "SKIPPING POI load on Windows");
1180 Transaction txn(this);
1183 poiDBInit(d->poiDatPath);
1184 stampCacheFile(d->poiDatPath);
1185 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1189 SG_LOG(SG_NAVCACHE, SG_INFO, "POI commit took:" << st.elapsedMSec());
1194 Transaction txn(this);
1195 loadCarrierNav(d->carrierDatPath);
1196 stampCacheFile(d->carrierDatPath);
1199 Airway::load(d->airwayDatPath);
1200 stampCacheFile(d->airwayDatPath);
1201 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1203 d->flushDeferredOctreeUpdates();
1205 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1206 writeStringProperty("scenery_paths", sceneryPaths);
1210 SG_LOG(SG_NAVCACHE, SG_INFO, "final commit took:" << st.elapsedMSec());
1214 } catch (sg_exception& e) {
1215 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1219 int NavDataCache::readIntProperty(const string& key)
1221 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1224 if (d->execSelect(d->readPropertyQuery)) {
1225 result = sqlite3_column_int(d->readPropertyQuery, 0);
1227 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1230 d->reset(d->readPropertyQuery);
1234 double NavDataCache::readDoubleProperty(const string& key)
1236 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1237 double result = 0.0;
1238 if (d->execSelect(d->readPropertyQuery)) {
1239 result = sqlite3_column_double(d->readPropertyQuery, 0);
1241 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1244 d->reset(d->readPropertyQuery);
1248 string NavDataCache::readStringProperty(const string& key)
1250 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1252 if (d->execSelect(d->readPropertyQuery)) {
1253 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1255 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1258 d->reset(d->readPropertyQuery);
1262 void NavDataCache::writeIntProperty(const string& key, int value)
1264 d->writeIntProperty(key, value);
1267 void NavDataCache::writeStringProperty(const string& key, const string& value)
1269 sqlite_bind_stdstring(d->clearProperty, 1, key);
1270 d->execUpdate(d->clearProperty);
1272 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1273 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1274 d->execUpdate(d->writePropertyQuery);
1277 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1279 sqlite_bind_stdstring(d->clearProperty, 1, key);
1280 d->execUpdate(d->clearProperty);
1282 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1283 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1284 d->execUpdate(d->writePropertyQuery);
1287 string_list NavDataCache::readStringListProperty(const string& key)
1289 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1291 while (d->stepSelect(d->readPropertyQuery)) {
1292 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1294 d->reset(d->readPropertyQuery);
1299 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1301 sqlite_bind_stdstring(d->clearProperty, 1, key);
1302 d->execUpdate(d->clearProperty);
1304 BOOST_FOREACH(string value, values) {
1305 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1306 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1307 d->execInsert(d->writePropertyMulti);
1311 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1313 if (!path.exists()) {
1314 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1317 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1318 bool isModified = true;
1320 if (d->execSelect(d->statCacheCheck)) {
1321 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1322 time_t delta = std::labs(modtime - path.modTime());
1325 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1329 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1332 isModified = (delta != 0);
1334 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1337 d->reset(d->statCacheCheck);
1341 void NavDataCache::stampCacheFile(const SGPath& path)
1343 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1344 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1345 d->execInsert(d->stampFileCache);
1348 void NavDataCache::beginTransaction()
1350 if (d->transactionLevel == 0) {
1351 d->transactionAborted = false;
1352 d->stepSelect(d->beginTransactionStmt);
1353 sqlite3_reset(d->beginTransactionStmt);
1356 ++d->transactionLevel;
1359 void NavDataCache::commitTransaction()
1361 assert(d->transactionLevel > 0);
1362 if (--d->transactionLevel == 0) {
1363 // if a nested transaction aborted, we might end up here, but must
1364 // still abort the entire transaction. That's bad, but safer than
1366 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1370 while (retries < MAX_RETRIES) {
1371 result = sqlite3_step(q);
1372 if (result == SQLITE_DONE) {
1376 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1377 // what's going on here: autocommit in inactive inside BEGIN, so if
1378 // it's active, the DB was rolled-back
1379 if (sqlite3_get_autocommit(d->db)) {
1380 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1381 d->transactionAborted = true;
1385 if (result != SQLITE_BUSY) {
1389 SGTimeStamp::sleepForMSec(++retries * 10);
1390 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1391 } // of retry loop for DB busy
1394 if (result != SQLITE_DONE) {
1395 errMsg = sqlite3_errmsg(d->db);
1396 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1397 << " while running:\n\t" << sqlite3_sql(q));
1404 void NavDataCache::abortTransaction()
1406 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1408 assert(d->transactionLevel > 0);
1409 if (--d->transactionLevel == 0) {
1410 d->stepSelect(d->rollbackTransactionStmt);
1411 sqlite3_reset(d->rollbackTransactionStmt);
1414 d->transactionAborted = true;
1417 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1423 PositionedCache::iterator it = d->cache.find(rowid);
1424 if (it != d->cache.end()) {
1426 return it->second; // cache it
1429 FGPositioned* pos = d->loadById(rowid);
1430 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1435 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1438 // airports have their pos computed based on the avergae runway centres
1439 // so the pos isn't available immediately. Pass a dummy pos and avoid
1440 // doing spatial indexing until later
1441 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1443 false /* spatial index */);
1445 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1446 d->execInsert(d->insertAirport);
1451 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1453 if (d->cache.find(item) != d->cache.end()) {
1454 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1455 d->cache[item]->modifyPosition(pos);
1458 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1460 sqlite3_bind_int(d->setAirportPos, 1, item);
1461 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1462 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1463 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1465 // bug 905; the octree leaf may change here, but the leaf may already be
1466 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1467 // we may be called here as a result of loading one of those leaf's children.
1468 // instead of dealing with all those possibilites, such as modifying
1469 // the in-memory leaf's STL child container, we simply leave the runtime
1470 // structures alone. This is fine providing items do no move very far, since
1471 // all the spatial searches ultimately use the items' real cartesian position,
1472 // which was updated above.
1473 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1474 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1476 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1477 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1478 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1481 d->execUpdate(d->setAirportPos);
1484 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1486 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1487 pos, airportId, true /* spatial index */);
1491 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1492 const SGGeod& pos, PositionedID apt,
1493 double heading, double length, double width, double displacedThreshold,
1494 double stopway, int surfaceCode)
1496 // only runways are spatially indexed; don't bother indexing taxiways
1498 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1500 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1502 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1503 sqlite3_bind_double(d->insertRunway, 2, heading);
1504 sqlite3_bind_double(d->insertRunway, 3, length);
1505 sqlite3_bind_double(d->insertRunway, 4, width);
1506 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1507 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1508 sqlite3_bind_double(d->insertRunway, 7, stopway);
1510 return d->execInsert(d->insertRunway);
1513 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1515 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1516 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1517 d->execUpdate(d->setRunwayReciprocal);
1519 // and the opposite direction too!
1520 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1521 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1522 d->execUpdate(d->setRunwayReciprocal);
1525 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1527 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1528 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1529 d->execUpdate(d->setRunwayILS);
1531 // and the in-memory one
1532 if (d->cache.find(runway) != d->cache.end()) {
1533 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1534 instance->setILS(ils);
1538 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1539 double aHeading, double aDisplacedThreshold,
1542 // update the runway information
1543 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1544 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1545 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1546 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1547 d->execUpdate(d->updateRunwayThreshold);
1549 // now update the positional data
1550 updatePosition(runwayID, aThreshold);
1554 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1555 const string& name, const SGGeod& pos,
1556 int freq, int range, double multiuse,
1557 PositionedID apt, PositionedID runway)
1559 bool spatialIndex = true;
1560 if (ty == FGPositioned::MOBILE_TACAN) {
1561 spatialIndex = false;
1564 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1566 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1567 sqlite3_bind_int(d->insertNavaid, 2, freq);
1568 sqlite3_bind_int(d->insertNavaid, 3, range);
1569 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1570 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1571 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1572 return d->execInsert(d->insertNavaid);
1575 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1577 // Update DB entries...
1578 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1579 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1580 d->execUpdate(d->setNavaidColocated);
1582 // ...and the in-memory copy of the navrecord
1583 if (d->cache.find(navaid) != d->cache.end()) {
1584 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1585 rec->setColocatedDME(colocatedDME);
1589 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1591 sqlite3_bind_int64(d->updateILS, 1, ils);
1592 sqlite3_bind_double(d->updateILS, 2, aHdg);
1593 d->execUpdate(d->updateILS);
1594 updatePosition(ils, newPos);
1597 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1598 const string& name, const SGGeod& pos, int freq, int range,
1601 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1602 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1603 sqlite3_bind_int(d->insertCommStation, 2, freq);
1604 sqlite3_bind_int(d->insertCommStation, 3, range);
1605 return d->execInsert(d->insertCommStation);
1608 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1610 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1613 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1615 return d->insertPositioned(ty, ident, string(), aPos, 0,
1616 true /* spatial index */);
1619 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1621 d->removePositionedWithIdent(ty, aIdent);
1622 // should remove from the live cache too?
1627 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1629 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1630 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1631 d->execUpdate(d->setAirportMetar);
1634 //------------------------------------------------------------------------------
1635 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1636 FGPositioned::Filter* filter,
1639 return d->findAllByString(s, "ident", filter, exact);
1642 //------------------------------------------------------------------------------
1643 FGPositionedList NavDataCache::findAllWithName( const string& s,
1644 FGPositioned::Filter* filter,
1647 return d->findAllByString(s, "name", filter, exact);
1650 //------------------------------------------------------------------------------
1651 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1653 FGPositioned::Filter* aFilter )
1655 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1657 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1658 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1659 } else { // full type range
1660 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1661 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1664 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1665 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1666 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1667 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1669 FGPositionedRef result;
1671 while (d->stepSelect(d->findClosestWithIdent)) {
1672 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1673 if (aFilter && !aFilter->pass(pos)) {
1681 d->reset(d->findClosestWithIdent);
1686 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1688 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1689 d->execSelect1(d->getOctreeChildren);
1690 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1691 d->reset(d->getOctreeChildren);
1695 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1697 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1698 d->execInsert(d->insertOctree);
1700 #ifdef LAZY_OCTREE_UPDATES
1701 d->deferredOctreeUpdates.insert(pr);
1703 // lowest three bits of node ID are 0..7 index of the child in the parent
1704 int childIndex = nd->guid() & 0x07;
1706 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1707 // mask has bit N set where child N exists
1708 int childMask = 1 << childIndex;
1709 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1710 d->execUpdate(d->updateOctreeChildren);
1715 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1717 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1719 TypedPositionedVec r;
1720 while (d->stepSelect(d->getOctreeLeafChildren)) {
1721 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1722 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1723 r.push_back(std::make_pair(ty,
1724 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1727 d->reset(d->getOctreeLeafChildren);
1733 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1734 * implement the AirportList dialog. It's unfortunate that it needs to reside
1735 * here, but for now it's least ugly solution.
1737 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1739 string s = "%" + aFilter + "%";
1740 sqlite_bind_stdstring(d->searchAirports, 1, s);
1742 unsigned int numMatches = 0, numAllocated = 16;
1743 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1745 while (d->stepSelect(d->searchAirports)) {
1746 if ((numMatches + 1) >= numAllocated) {
1747 numAllocated <<= 1; // double in size!
1748 // reallocate results array
1749 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1750 memcpy(nresult, result, sizeof(char*) * numMatches);
1755 // nasty code to avoid excessive string copying and allocations.
1756 // We format results as follows (note whitespace!):
1757 // ' name-of-airport-chars (ident)'
1758 // so the total length is:
1759 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1760 // which gives a grand total of 7 + name-length + icao-length.
1761 // note the ident can be three letters (non-ICAO local strip), four
1762 // (default ICAO) or more (extended format ICAO)
1763 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1764 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1765 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1768 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1774 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1779 result[numMatches++] = entry;
1782 result[numMatches] = NULL; // end of list marker
1783 d->reset(d->searchAirports);
1788 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1790 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1792 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1793 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1794 } else { // full type range
1795 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1796 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1799 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1800 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1801 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1802 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1803 FGPositionedRef result;
1805 while (d->execSelect(d->findCommByFreq)) {
1806 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1807 if (aFilter && !aFilter->pass(p)) {
1815 d->reset(d->findCommByFreq);
1820 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1822 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1824 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1825 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1826 } else { // full type range
1827 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1828 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1831 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1832 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1833 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1834 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1836 return d->selectIds(d->findNavsByFreq);
1840 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1842 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1844 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1845 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1846 } else { // full type range
1847 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1848 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1851 return d->selectIds(d->findNavsByFreqNoPos);
1855 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1856 FGPositioned::Type maxTy)
1858 if (maxTy == FGPositioned::INVALID) {
1859 maxTy = ty; // single-type range
1862 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1863 sqlite3_bind_int(d->getAirportItems, 2, ty);
1864 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1866 return d->selectIds(d->getAirportItems);
1870 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1871 const std::string& ident)
1873 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1874 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1875 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1876 PositionedID result = 0;
1878 if (d->execSelect(d->getAirportItemByIdent)) {
1879 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1882 d->reset(d->getAirportItemByIdent);
1887 NavDataCache::findAirportRunway(const std::string& aName)
1889 if (aName.empty()) {
1890 return AirportRunwayPair();
1893 string_list parts = simgear::strutils::split(aName);
1894 if (parts.size() < 2) {
1895 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1896 return AirportRunwayPair();
1899 AirportRunwayPair result;
1900 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1901 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1903 if (d->execSelect(d->findAirportRunway)) {
1904 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1905 sqlite3_column_int64(d->findAirportRunway, 1));
1908 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1911 d->reset(d->findAirportRunway);
1916 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1918 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1919 sqlite3_bind_int64(d->findILS, 2, airport);
1920 sqlite_bind_stdstring(d->findILS, 3, runway);
1921 PositionedID result = 0;
1922 if (d->execSelect(d->findILS)) {
1923 result = sqlite3_column_int64(d->findILS, 0);
1926 d->reset(d->findILS);
1930 int NavDataCache::findAirway(int network, const string& aName)
1932 sqlite3_bind_int(d->findAirway, 1, network);
1933 sqlite_bind_stdstring(d->findAirway, 2, aName);
1936 if (d->execSelect(d->findAirway)) {
1938 airway = sqlite3_column_int(d->findAirway, 0);
1940 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1941 sqlite3_bind_int(d->insertAirway, 2, network);
1942 airway = d->execInsert(d->insertAirway);
1945 d->reset(d->findAirway);
1949 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1951 // assume all edges are bidirectional for the moment
1952 for (int i=0; i<2; ++i) {
1953 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1954 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1955 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1956 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1957 d->execInsert(d->insertAirwayEdge);
1959 std::swap(from, to);
1963 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1965 sqlite3_bind_int(d->isPosInAirway, 1, network);
1966 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1967 bool ok = d->execSelect(d->isPosInAirway);
1968 d->reset(d->isPosInAirway);
1973 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1975 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1976 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1978 AirwayEdgeVec result;
1979 while (d->stepSelect(d->airwayEdgesFrom)) {
1980 result.push_back(AirwayEdge(
1981 sqlite3_column_int(d->airwayEdgesFrom, 0),
1982 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1986 d->reset(d->airwayEdgesFrom);
1990 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
1992 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
1993 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
1995 PositionedID result = 0;
1996 if (d->execSelect(d->findNavaidForRunway)) {
1997 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2000 d->reset(d->findNavaidForRunway);
2005 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2006 PositionedID aAirport,
2007 double aHeading, int aRadius, const std::string& aAircraftType,
2008 const std::string& aAirlines)
2010 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2012 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2013 // the appropriate pushback flag.
2014 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2015 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2016 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2017 d->execInsert(d->insertTaxiNode);
2019 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2020 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2021 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2022 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2023 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2024 return d->execInsert(d->insertParkingPos);
2027 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2029 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2030 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2031 d->execUpdate(d->setParkingPushBack);
2035 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2037 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2038 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2039 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2040 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2041 return d->execInsert(d->insertTaxiNode);
2044 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2046 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2047 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2048 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2049 d->execInsert(d->insertTaxiEdge);
2052 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2054 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2055 sqlite3_bind_int64(q, 1, aAirport);
2056 return d->selectIds(q);
2059 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2061 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2062 d->execUpdate(d->markTaxiNodeAsPushback);
2065 static double headingDifferenceDeg(double crs1, double crs2)
2067 double diff = crs2 - crs1;
2068 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2072 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2073 bool onRunway, FGRunway* aRunway)
2075 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2076 sqlite3_bind_int64(q, 1, airport);
2078 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2079 sqlite3_bind_double(q, 2, cartPos.x());
2080 sqlite3_bind_double(q, 3, cartPos.y());
2081 sqlite3_bind_double(q, 4, cartPos.z());
2083 PositionedID result = 0;
2084 while (d->execSelect(q)) {
2085 PositionedID id = sqlite3_column_int64(q, 0);
2091 // ensure found node lies on the runway
2092 FGPositionedRef node = loadById(id);
2093 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2094 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2104 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2106 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2107 sqlite3_bind_int64(q, 1, pos);
2108 return d->selectIds(q);
2111 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2114 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2115 sqlite3_bind_int(d->findAirportParking, 2, radius);
2116 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2118 return d->selectIds(d->findAirportParking);
2121 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2123 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2124 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2125 sqlite3_bind_int64(q, 2, aAirport);
2128 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2129 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2130 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2131 sqlite3_bind_int64(q, 3, aAirport);
2134 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2135 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2136 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2137 sqlite3_bind_int64(q, 3, aAirport);
2140 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2141 sqlite3_bind_int64(q, 1, aAirport);
2145 /////////////////////////////////////////////////////////////////////////////////////////
2146 // Transaction RAII object
2148 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2153 _instance->beginTransaction();
2156 NavDataCache::Transaction::~Transaction()
2159 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2160 _instance->abortTransaction();
2164 void NavDataCache::Transaction::commit()
2166 assert(!_committed);
2168 _instance->commitTransaction();
2171 } // of namespace flightgear