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 void callSqlite(int result, const string& sql)
306 if (result == SQLITE_OK)
310 if (result == SQLITE_MISUSE) {
311 errMsg = "Sqlite API abuse";
312 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
314 errMsg = sqlite3_errmsg(db);
315 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
318 throw sg_exception("Sqlite error:" + errMsg, sql);
321 void runSQL(const string& sql)
323 sqlite3_stmt_ptr stmt;
324 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
328 } catch (sg_exception&) {
329 sqlite3_finalize(stmt);
333 sqlite3_finalize(stmt);
336 sqlite3_stmt_ptr prepare(const string& sql)
338 sqlite3_stmt_ptr stmt;
339 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
340 prepared.push_back(stmt);
344 void finalize(sqlite3_stmt_ptr s)
346 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
347 if (it == prepared.end()) {
348 throw sg_exception("Finalising statement that was not prepared");
355 void reset(sqlite3_stmt_ptr stmt)
358 if (sqlite3_reset(stmt) != SQLITE_OK) {
359 string errMsg = sqlite3_errmsg(db);
360 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
361 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
365 bool execSelect(sqlite3_stmt_ptr stmt)
367 return stepSelect(stmt);
370 bool stepSelect(sqlite3_stmt_ptr stmt)
374 while (retries < MAX_RETRIES) {
375 result = sqlite3_step(stmt);
376 if (result == SQLITE_ROW) {
377 return true; // at least one result row
380 if (result == SQLITE_DONE) {
381 return false; // no result rows
384 if (result != SQLITE_BUSY) {
388 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
389 SGTimeStamp::sleepForMSec(++retries * 10);
390 } // of retry loop for DB locked
392 if (retries >= MAX_RETRIES) {
393 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
398 if (result == SQLITE_MISUSE) {
399 errMsg = "Sqlite API abuse";
400 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
402 errMsg = sqlite3_errmsg(db);
403 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
404 << ") while running:\n\t" << sqlite3_sql(stmt));
407 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
410 void execSelect1(sqlite3_stmt_ptr stmt)
412 if (!execSelect(stmt)) {
413 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
414 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
418 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
421 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
426 void execUpdate(sqlite3_stmt_ptr stmt)
434 string_list commands = simgear::strutils::split(SCHEMA_SQL, ";");
435 BOOST_FOREACH(std::string sql, commands) {
441 } // of commands in scheme loop
444 void prepareQueries()
446 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
448 beginTransactionStmt = prepare("BEGIN");
449 commitTransactionStmt = prepare("COMMIT");
450 rollbackTransactionStmt = prepare("ROLLBACK");
453 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
454 #define AND_TYPED "AND type>=?2 AND type <=?3"
455 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
456 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
457 "(path, stamp) VALUES (?,?)");
459 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
460 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
461 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
462 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
463 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
464 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
466 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
469 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
470 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
471 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
472 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
474 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
475 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
476 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
478 insertPositionedQuery = prepare("INSERT INTO positioned "
479 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
480 "cart_x, cart_y, cart_z)"
481 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
483 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
484 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
485 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
486 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
487 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
489 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
490 " VALUES (?, ?, ?)");
491 insertRunway = prepare("INSERT INTO runway "
492 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
493 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
494 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
496 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
499 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
500 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
502 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
503 "positioned.rowid=comm.rowid AND freq_khz=?1 "
504 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
506 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
507 "positioned.rowid=navaid.rowid "
508 "AND navaid.freq=?1 " AND_TYPED
509 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
511 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
512 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
514 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
515 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
517 // for an octree branch, return the child octree nodes which exist,
518 // described as a bit-mask
519 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
521 #ifdef LAZY_OCTREE_UPDATES
522 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
524 // mask the new child value into the existing one
525 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
528 // define a new octree node (with no children)
529 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
531 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
533 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
534 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
535 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
537 getAllAirports = prepare("SELECT ident, name FROM positioned WHERE type>=?1 AND type <=?2");
538 sqlite3_bind_int(getAllAirports, 1, FGPositioned::AIRPORT);
539 sqlite3_bind_int(getAllAirports, 2, FGPositioned::SEAPORT);
542 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
544 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
545 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
546 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
547 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
549 // three-way join to get the navaid ident and runway ident in a single select.
550 // we're joining positioned to itself by the navaid runway, with the complication
551 // that we need to join the navaids table to get the runway ID.
552 // we also need to filter by type to excluse glideslope (GS) matches
553 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
554 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
555 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
556 "AND (nav.type=?4 OR nav.type=?5)");
558 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
559 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
562 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
563 insertAirway = prepare("INSERT INTO airway (ident, network) "
566 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
567 "VALUES (?1, ?2, ?3, ?4)");
569 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
571 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
573 // parking / taxi-node graph
574 insertTaxiNode = prepare("INSERT INTO taxi_node (rowid, hold_type, on_runway, pushback) VALUES(?1, ?2, ?3, 0)");
575 insertParkingPos = prepare("INSERT INTO parking (rowid, heading, radius, gate_type, airlines) "
576 "VALUES (?1, ?2, ?3, ?4, ?5)");
577 setParkingPushBack = prepare("UPDATE parking SET pushback=?2 WHERE rowid=?1");
579 loadTaxiNodeStmt = prepare("SELECT hold_type, on_runway FROM taxi_node WHERE rowid=?1");
580 loadParkingPos = prepare("SELECT heading, radius, gate_type, airlines, pushback FROM parking WHERE rowid=?1");
581 taxiEdgesFrom = prepare("SELECT b FROM groundnet_edge WHERE a=?1");
582 pushbackEdgesFrom = prepare("SELECT b FROM groundnet_edge, taxi_node WHERE "
583 "a=?1 AND groundnet_edge.b = taxi_node.rowid AND pushback=1");
585 insertTaxiEdge = prepare("INSERT INTO groundnet_edge (airport, a,b) VALUES(?1, ?2, ?3)");
587 markTaxiNodeAsPushback = prepare("UPDATE taxi_node SET pushback=1 WHERE rowid=?1");
588 airportTaxiNodes = prepare("SELECT rowid FROM positioned WHERE (type=?2 OR type=?3) AND airport=?1");
589 sqlite3_bind_int(airportTaxiNodes, 2, FGPositioned::PARKING);
590 sqlite3_bind_int(airportTaxiNodes, 3, FGPositioned::TAXI_NODE);
592 airportPushbackNodes = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "\
593 "airport=?1 AND positioned.rowid=taxi_node.rowid AND pushback=1 "
594 "AND (type=?2 OR type=?3)");
595 sqlite3_bind_int(airportPushbackNodes, 2, FGPositioned::PARKING);
596 sqlite3_bind_int(airportPushbackNodes, 3, FGPositioned::TAXI_NODE);
598 findNearestTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
599 "positioned.rowid = taxi_node.rowid AND airport=?1 "
600 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) "
603 findNearestRunwayTaxiNode = prepare("SELECT positioned.rowid FROM positioned, taxi_node WHERE "
604 "positioned.rowid = taxi_node.rowid AND airport=?1 "
606 "ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?2, ?3, ?4) ");
608 findAirportParking = prepare("SELECT positioned.rowid FROM positioned, parking WHERE "
609 "airport=?1 AND type=?4 AND "
610 "radius >= ?2 AND gate_type = ?3 AND "
611 "parking.rowid=positioned.rowid");
612 sqlite3_bind_int(findAirportParking, 4, FGPositioned::PARKING);
615 void writeIntProperty(const string& key, int value)
617 sqlite_bind_stdstring(clearProperty, 1, key);
618 execUpdate(clearProperty);
620 sqlite_bind_stdstring(writePropertyQuery, 1, key);
621 sqlite3_bind_int(writePropertyQuery, 2, value);
622 execUpdate(writePropertyQuery);
626 FGPositioned* loadById(sqlite_int64 rowId, sqlite3_int64& aptId);
628 FGAirport* loadAirport(sqlite_int64 rowId,
629 FGPositioned::Type ty,
630 const string& id, const string& name, const SGGeod& pos)
632 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
633 execSelect1(loadAirportStmt);
634 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
635 reset(loadAirportStmt);
637 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
640 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
641 const string& id, const SGGeod& pos, PositionedID apt)
643 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
644 execSelect1(loadRunwayStmt);
646 double heading = sqlite3_column_double(loadRunwayStmt, 0);
647 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
648 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
649 int surface = sqlite3_column_int(loadRunwayStmt, 3);
651 if (ty == FGPositioned::TAXIWAY) {
652 reset(loadRunwayStmt);
653 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
654 } else if (ty == FGPositioned::HELIPAD) {
655 reset(loadRunwayStmt);
656 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
658 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
659 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
660 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
661 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
662 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
663 displacedThreshold, stopway, surface);
665 if (reciprocal > 0) {
666 r->setReciprocalRunway(reciprocal);
673 reset(loadRunwayStmt);
678 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
679 const string& id, const string& name,
681 PositionedID airport)
683 sqlite3_bind_int64(loadCommStation, 1, rowId);
684 execSelect1(loadCommStation);
686 int range = sqlite3_column_int(loadCommStation, 0);
687 int freqKhz = sqlite3_column_int(loadCommStation, 1);
688 reset(loadCommStation);
690 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
691 c->setAirport(airport);
695 FGPositioned* loadNav(sqlite3_int64 rowId,
696 FGPositioned::Type ty, const string& id,
697 const string& name, const SGGeod& pos)
699 sqlite3_bind_int64(loadNavaid, 1, rowId);
700 execSelect1(loadNavaid);
702 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
703 // marker beacons are light-weight
704 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
705 (ty == FGPositioned::MM))
708 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
711 int rangeNm = sqlite3_column_int(loadNavaid, 0),
712 freq = sqlite3_column_int(loadNavaid, 1);
713 double mulituse = sqlite3_column_double(loadNavaid, 2);
714 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
718 (ty == FGPositioned::MOBILE_TACAN)
719 ? new FGMobileNavRecord
720 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway)
722 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
725 n->setColocatedDME(colocated);
730 FGPositioned* loadParking(sqlite3_int64 rowId,
731 const string& name, const SGGeod& pos,
732 PositionedID airport)
734 sqlite3_bind_int64(loadParkingPos, 1, rowId);
735 execSelect1(loadParkingPos);
737 double heading = sqlite3_column_double(loadParkingPos, 0);
738 int radius = sqlite3_column_int(loadParkingPos, 1);
739 string aircraftType((char*) sqlite3_column_text(loadParkingPos, 2));
740 string airlines((char*) sqlite3_column_text(loadParkingPos, 3));
741 PositionedID pushBack = sqlite3_column_int64(loadParkingPos, 4);
742 reset(loadParkingPos);
744 return new FGParking(rowId, pos, heading, radius, name, aircraftType, airlines, pushBack);
747 FGPositioned* loadTaxiNode(sqlite3_int64 rowId, const SGGeod& pos,
748 PositionedID airport)
750 sqlite3_bind_int64(loadTaxiNodeStmt, 1, rowId);
751 execSelect1(loadTaxiNodeStmt);
753 int hold_type = sqlite3_column_int(loadTaxiNodeStmt, 0);
754 bool onRunway = sqlite3_column_int(loadTaxiNodeStmt, 1);
755 reset(loadTaxiNodeStmt);
757 return new FGTaxiNode(rowId, pos, onRunway, hold_type);
760 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
761 const string& name, const SGGeod& pos, PositionedID apt,
764 SGVec3d cartPos(SGVec3d::fromGeod(pos));
766 sqlite3_bind_int(insertPositionedQuery, 1, ty);
767 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
768 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
769 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
770 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
771 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
772 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
775 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
776 assert(intersects(octreeLeaf->bbox(), cartPos));
777 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
779 sqlite3_bind_null(insertPositionedQuery, 8);
782 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
783 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
784 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
786 PositionedID r = execInsert(insertPositionedQuery);
790 FGPositionedList findAllByString(const string& s, const string& column,
791 FGPositioned::Filter* filter, bool exact)
794 if (!exact) query += "%";
796 // build up SQL query text
797 string matchTerm = exact ? "=?1" : " LIKE ?1";
798 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
800 sql += " " AND_TYPED;
803 // find or prepare a suitable statement frrm the SQL
804 sqlite3_stmt_ptr stmt = findByStringDict[sql];
807 findByStringDict[sql] = stmt;
810 sqlite_bind_stdstring(stmt, 1, query);
812 sqlite3_bind_int(stmt, 2, filter->minType());
813 sqlite3_bind_int(stmt, 3, filter->maxType());
816 FGPositionedList result;
817 // run the prepared SQL
818 while (stepSelect(stmt))
820 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
821 if (filter && !filter->pass(pos)) {
825 result.push_back(pos);
832 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
834 PositionedIDVec result;
835 while (stepSelect(query)) {
836 result.push_back(sqlite3_column_int64(query, 0));
842 double runwayLengthFt(PositionedID rwy)
844 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
845 execSelect1(runwayLengthFtQuery);
846 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
847 reset(runwayLengthFtQuery);
851 void flushDeferredOctreeUpdates()
853 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
854 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
855 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
856 execUpdate(updateOctreeChildren);
859 deferredOctreeUpdates.clear();
862 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
864 sqlite3_bind_int(removePOIQuery, 1, ty);
865 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
866 execUpdate(removePOIQuery);
867 reset(removePOIQuery);
875 /// the actual cache of ID -> instances. This holds an owning reference,
876 /// so once items are in the cache they will never be deleted until
877 /// the cache drops its reference
878 PositionedCache cache;
879 unsigned int cacheHits, cacheMisses;
882 * record the levels of open transaction objects we have
884 unsigned int transactionLevel;
885 bool transactionAborted;
886 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
888 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
889 carrierDatPath, airwayDatPath;
891 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
892 stampFileCache, statCacheCheck,
893 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
895 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
897 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
898 insertCommStation, insertNavaid;
899 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
901 sqlite3_stmt_ptr removePOIQuery;
903 sqlite3_stmt_ptr findClosestWithIdent;
904 // octree (spatial index) related queries
905 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
906 getOctreeLeafChildren;
908 sqlite3_stmt_ptr searchAirports, getAllAirports;
909 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
910 findNavsByFreqNoPos, findNavaidForRunway;
911 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
912 sqlite3_stmt_ptr findAirportRunway,
915 sqlite3_stmt_ptr runwayLengthFtQuery;
918 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
921 // groundnet (parking, taxi node graph)
922 sqlite3_stmt_ptr loadTaxiNodeStmt, loadParkingPos, insertTaxiNode, insertParkingPos;
923 sqlite3_stmt_ptr taxiEdgesFrom, pushbackEdgesFrom, insertTaxiEdge, markTaxiNodeAsPushback,
924 airportTaxiNodes, airportPushbackNodes, findNearestTaxiNode, findAirportParking,
925 setParkingPushBack, findNearestRunwayTaxiNode;
927 // since there's many permutations of ident/name queries, we create
928 // them programtically, but cache the exact query by its raw SQL once
930 std::map<string, sqlite3_stmt_ptr> findByStringDict;
932 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
935 std::set<Octree::Branch*> deferredOctreeUpdates;
937 // if we're performing a rebuild, the thread that is doing the work.
939 std::auto_ptr<RebuildThread> rebuilder;
942 //////////////////////////////////////////////////////////////////////
944 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid,
945 sqlite3_int64& aptId)
948 sqlite3_bind_int64(loadPositioned, 1, rowid);
949 execSelect1(loadPositioned);
951 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
952 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
954 PositionedID prowid = static_cast<PositionedID>(rowid);
955 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
956 string name = (char*) sqlite3_column_text(loadPositioned, 3);
957 aptId = sqlite3_column_int64(loadPositioned, 4);
958 double lon = sqlite3_column_double(loadPositioned, 5);
959 double lat = sqlite3_column_double(loadPositioned, 6);
960 double elev = sqlite3_column_double(loadPositioned, 7);
961 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
963 reset(loadPositioned);
966 case FGPositioned::AIRPORT:
967 case FGPositioned::SEAPORT:
968 case FGPositioned::HELIPORT:
969 return loadAirport(rowid, ty, ident, name, pos);
971 case FGPositioned::TOWER:
972 return new AirportTower(prowid, aptId, ident, pos);
974 case FGPositioned::RUNWAY:
975 case FGPositioned::HELIPAD:
976 case FGPositioned::TAXIWAY:
977 return loadRunway(rowid, ty, ident, pos, aptId);
979 case FGPositioned::LOC:
980 case FGPositioned::VOR:
981 case FGPositioned::GS:
982 case FGPositioned::ILS:
983 case FGPositioned::NDB:
984 case FGPositioned::OM:
985 case FGPositioned::MM:
986 case FGPositioned::IM:
987 case FGPositioned::DME:
988 case FGPositioned::TACAN:
989 case FGPositioned::MOBILE_TACAN:
990 return loadNav(rowid, ty, ident, name, pos);
992 case FGPositioned::FIX:
993 return new FGFix(rowid, ident, pos);
995 case FGPositioned::WAYPOINT:
996 case FGPositioned::COUNTRY:
997 case FGPositioned::CITY:
998 case FGPositioned::TOWN:
999 case FGPositioned::VILLAGE:
1001 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
1005 case FGPositioned::FREQ_GROUND:
1006 case FGPositioned::FREQ_TOWER:
1007 case FGPositioned::FREQ_ATIS:
1008 case FGPositioned::FREQ_AWOS:
1009 case FGPositioned::FREQ_APP_DEP:
1010 case FGPositioned::FREQ_ENROUTE:
1011 case FGPositioned::FREQ_CLEARANCE:
1012 case FGPositioned::FREQ_UNICOM:
1013 return loadComm(rowid, ty, ident, name, pos, aptId);
1015 case FGPositioned::TAXI_NODE:
1016 return loadTaxiNode(rowid, pos, aptId);
1018 case FGPositioned::PARKING:
1019 return loadParking(rowid, ident, pos, aptId);
1027 static NavDataCache* static_instance = NULL;
1029 NavDataCache::NavDataCache()
1031 const int MAX_TRIES = 3;
1032 SGPath homePath(globals->get_fg_home());
1034 std::ostringstream os;
1035 string_list versionParts = simgear::strutils::split(VERSION, ".");
1036 if (versionParts.size() < 2) {
1037 os << "navdata.cache";
1039 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1042 homePath.append(os.str());
1044 for (int t=0; t < MAX_TRIES; ++t) {
1046 d.reset(new NavDataCachePrivate(homePath, this));
1048 //d->checkCacheFile();
1049 // reached this point with no exception, success
1051 } catch (sg_exception& e) {
1052 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1053 << " (attempt " << t << ")");
1056 // only wipe the existing if not readonly
1057 if (!fgGetBool("/sim/fghome-readonly", false)) {
1063 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1064 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1065 Octree::global_spatialOctree =
1066 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1068 d->aptDatPath = SGPath(globals->get_fg_root());
1069 d->aptDatPath.append("Airports/apt.dat.gz");
1071 d->metarDatPath = SGPath(globals->get_fg_root());
1072 d->metarDatPath.append("Airports/metar.dat.gz");
1074 d->navDatPath = SGPath(globals->get_fg_root());
1075 d->navDatPath.append("Navaids/nav.dat.gz");
1077 d->fixDatPath = SGPath(globals->get_fg_root());
1078 d->fixDatPath.append("Navaids/fix.dat.gz");
1080 d->poiDatPath = SGPath(globals->get_fg_root());
1081 d->poiDatPath.append("Navaids/poi.dat.gz");
1083 d->carrierDatPath = SGPath(globals->get_fg_root());
1084 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1086 d->airwayDatPath = SGPath(globals->get_fg_root());
1087 d->airwayDatPath.append("Navaids/awy.dat.gz");
1090 NavDataCache::~NavDataCache()
1092 assert(static_instance == this);
1093 static_instance = NULL;
1097 NavDataCache* NavDataCache::instance()
1099 if (!static_instance) {
1100 static_instance = new NavDataCache;
1103 return static_instance;
1106 bool NavDataCache::isRebuildRequired()
1112 if (flightgear::Options::sharedInstance()->isOptionSet("restore-defaults")) {
1113 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: restore-defaults requested, will rebuild cache");
1117 if (isCachedFileModified(d->aptDatPath) ||
1118 isCachedFileModified(d->metarDatPath) ||
1119 isCachedFileModified(d->navDatPath) ||
1120 isCachedFileModified(d->carrierDatPath) ||
1121 isCachedFileModified(d->fixDatPath) ||
1122 // since POI loading is disabled on Windows, don't check for it
1123 // this caused: https://code.google.com/p/flightgear-bugs/issues/detail?id=1227
1125 isCachedFileModified(d->poiDatPath) ||
1127 isCachedFileModified(d->airwayDatPath))
1129 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1133 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1134 if (readStringProperty("scenery_paths") != sceneryPaths) {
1135 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: scenery paths changed, main cache rebuild required");
1139 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1143 bool NavDataCache::rebuild()
1145 if (!d->rebuilder.get()) {
1146 d->rebuilder.reset(new RebuildThread(this));
1147 d->rebuilder->start();
1150 // poll the rebuild thread
1151 bool fin = d->rebuilder->isFinished();
1153 d->rebuilder.reset(); // all done!
1158 void NavDataCache::doRebuild()
1161 d->close(); // completely close the sqlite object
1162 d->path.remove(); // remove the file on disk
1163 d->init(); // start again from scratch
1165 // initialise the root octree node
1166 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1170 Transaction txn(this);
1173 airportDBLoad(d->aptDatPath);
1174 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1176 metarDataLoad(d->metarDatPath);
1177 stampCacheFile(d->aptDatPath);
1178 stampCacheFile(d->metarDatPath);
1181 loadFixes(d->fixDatPath);
1182 stampCacheFile(d->fixDatPath);
1183 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1186 navDBInit(d->navDatPath);
1187 stampCacheFile(d->navDatPath);
1188 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1192 SG_LOG(SG_NAVCACHE, SG_INFO, "stage 1 commit took:" << st.elapsedMSec());
1196 SG_LOG(SG_NAVCACHE, SG_ALERT, "SKIPPING POI load on Windows");
1199 Transaction txn(this);
1202 poiDBInit(d->poiDatPath);
1203 stampCacheFile(d->poiDatPath);
1204 SG_LOG(SG_NAVCACHE, SG_INFO, "poi.dat load took:" << st.elapsedMSec());
1208 SG_LOG(SG_NAVCACHE, SG_INFO, "POI commit took:" << st.elapsedMSec());
1213 Transaction txn(this);
1214 loadCarrierNav(d->carrierDatPath);
1215 stampCacheFile(d->carrierDatPath);
1218 Airway::load(d->airwayDatPath);
1219 stampCacheFile(d->airwayDatPath);
1220 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1222 d->flushDeferredOctreeUpdates();
1224 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1225 writeStringProperty("scenery_paths", sceneryPaths);
1229 SG_LOG(SG_NAVCACHE, SG_INFO, "final commit took:" << st.elapsedMSec());
1233 } catch (sg_exception& e) {
1234 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1238 int NavDataCache::readIntProperty(const string& key)
1240 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1243 if (d->execSelect(d->readPropertyQuery)) {
1244 result = sqlite3_column_int(d->readPropertyQuery, 0);
1246 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1249 d->reset(d->readPropertyQuery);
1253 double NavDataCache::readDoubleProperty(const string& key)
1255 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1256 double result = 0.0;
1257 if (d->execSelect(d->readPropertyQuery)) {
1258 result = sqlite3_column_double(d->readPropertyQuery, 0);
1260 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1263 d->reset(d->readPropertyQuery);
1267 string NavDataCache::readStringProperty(const string& key)
1269 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1271 if (d->execSelect(d->readPropertyQuery)) {
1272 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1274 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1277 d->reset(d->readPropertyQuery);
1281 void NavDataCache::writeIntProperty(const string& key, int value)
1283 d->writeIntProperty(key, value);
1286 void NavDataCache::writeStringProperty(const string& key, const string& value)
1288 sqlite_bind_stdstring(d->clearProperty, 1, key);
1289 d->execUpdate(d->clearProperty);
1291 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1292 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1293 d->execUpdate(d->writePropertyQuery);
1296 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1298 sqlite_bind_stdstring(d->clearProperty, 1, key);
1299 d->execUpdate(d->clearProperty);
1301 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1302 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1303 d->execUpdate(d->writePropertyQuery);
1306 string_list NavDataCache::readStringListProperty(const string& key)
1308 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1310 while (d->stepSelect(d->readPropertyQuery)) {
1311 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1313 d->reset(d->readPropertyQuery);
1318 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1320 sqlite_bind_stdstring(d->clearProperty, 1, key);
1321 d->execUpdate(d->clearProperty);
1323 BOOST_FOREACH(string value, values) {
1324 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1325 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1326 d->execInsert(d->writePropertyMulti);
1330 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1332 if (!path.exists()) {
1333 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1336 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1337 bool isModified = true;
1339 if (d->execSelect(d->statCacheCheck)) {
1340 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1341 time_t delta = std::labs(modtime - path.modTime());
1344 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: rebuild required for " << path << ". Timestamps: " << modtime << " != " << path.modTime());
1348 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
1351 isModified = (delta != 0);
1353 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: initial build required for " << path);
1356 d->reset(d->statCacheCheck);
1360 void NavDataCache::stampCacheFile(const SGPath& path)
1362 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1363 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1364 d->execInsert(d->stampFileCache);
1367 void NavDataCache::beginTransaction()
1369 if (d->transactionLevel == 0) {
1370 d->transactionAborted = false;
1371 d->stepSelect(d->beginTransactionStmt);
1372 sqlite3_reset(d->beginTransactionStmt);
1375 ++d->transactionLevel;
1378 void NavDataCache::commitTransaction()
1380 assert(d->transactionLevel > 0);
1381 if (--d->transactionLevel == 0) {
1382 // if a nested transaction aborted, we might end up here, but must
1383 // still abort the entire transaction. That's bad, but safer than
1385 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1389 while (retries < MAX_RETRIES) {
1390 result = sqlite3_step(q);
1391 if (result == SQLITE_DONE) {
1395 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1396 // what's going on here: autocommit in inactive inside BEGIN, so if
1397 // it's active, the DB was rolled-back
1398 if (sqlite3_get_autocommit(d->db)) {
1399 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1400 d->transactionAborted = true;
1404 if (result != SQLITE_BUSY) {
1408 SGTimeStamp::sleepForMSec(++retries * 10);
1409 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1410 } // of retry loop for DB busy
1413 if (result != SQLITE_DONE) {
1414 errMsg = sqlite3_errmsg(d->db);
1415 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1416 << " while running:\n\t" << sqlite3_sql(q));
1423 void NavDataCache::abortTransaction()
1425 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1427 assert(d->transactionLevel > 0);
1428 if (--d->transactionLevel == 0) {
1429 d->stepSelect(d->rollbackTransactionStmt);
1430 sqlite3_reset(d->rollbackTransactionStmt);
1433 d->transactionAborted = true;
1436 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1442 PositionedCache::iterator it = d->cache.find(rowid);
1443 if (it != d->cache.end()) {
1445 return it->second; // cache it
1449 FGPositioned* pos = d->loadById(rowid, aptId);
1450 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1453 // when we loaded an ILS, we must apply per-airport changes
1454 if ((pos->type() == FGPositioned::ILS) && (aptId > 0)) {
1455 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1456 apt->validateILSData();
1462 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1465 // airports have their pos computed based on the avergae runway centres
1466 // so the pos isn't available immediately. Pass a dummy pos and avoid
1467 // doing spatial indexing until later
1468 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1470 false /* spatial index */);
1472 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1473 d->execInsert(d->insertAirport);
1478 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1480 if (d->cache.find(item) != d->cache.end()) {
1481 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1482 d->cache[item]->modifyPosition(pos);
1485 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1487 sqlite3_bind_int(d->setAirportPos, 1, item);
1488 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1489 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1490 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1492 // bug 905; the octree leaf may change here, but the leaf may already be
1493 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1494 // we may be called here as a result of loading one of those leaf's children.
1495 // instead of dealing with all those possibilites, such as modifying
1496 // the in-memory leaf's STL child container, we simply leave the runtime
1497 // structures alone. This is fine providing items do no move very far, since
1498 // all the spatial searches ultimately use the items' real cartesian position,
1499 // which was updated above.
1500 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1501 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1503 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1504 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1505 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1508 d->execUpdate(d->setAirportPos);
1511 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1513 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1514 pos, airportId, true /* spatial index */);
1518 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1519 const SGGeod& pos, PositionedID apt,
1520 double heading, double length, double width, double displacedThreshold,
1521 double stopway, int surfaceCode)
1523 // only runways are spatially indexed; don't bother indexing taxiways
1525 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1527 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1529 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1530 sqlite3_bind_double(d->insertRunway, 2, heading);
1531 sqlite3_bind_double(d->insertRunway, 3, length);
1532 sqlite3_bind_double(d->insertRunway, 4, width);
1533 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1534 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1535 sqlite3_bind_double(d->insertRunway, 7, stopway);
1537 return d->execInsert(d->insertRunway);
1540 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1542 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1543 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1544 d->execUpdate(d->setRunwayReciprocal);
1546 // and the opposite direction too!
1547 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1548 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1549 d->execUpdate(d->setRunwayReciprocal);
1552 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1554 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1555 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1556 d->execUpdate(d->setRunwayILS);
1558 // and the in-memory one
1559 if (d->cache.find(runway) != d->cache.end()) {
1560 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1561 instance->setILS(ils);
1566 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1567 const string& name, const SGGeod& pos,
1568 int freq, int range, double multiuse,
1569 PositionedID apt, PositionedID runway)
1571 bool spatialIndex = true;
1572 if (ty == FGPositioned::MOBILE_TACAN) {
1573 spatialIndex = false;
1576 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1578 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1579 sqlite3_bind_int(d->insertNavaid, 2, freq);
1580 sqlite3_bind_int(d->insertNavaid, 3, range);
1581 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1582 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1583 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1584 return d->execInsert(d->insertNavaid);
1587 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1589 // Update DB entries...
1590 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1591 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1592 d->execUpdate(d->setNavaidColocated);
1594 // ...and the in-memory copy of the navrecord
1595 if (d->cache.find(navaid) != d->cache.end()) {
1596 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1597 rec->setColocatedDME(colocatedDME);
1601 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1602 const string& name, const SGGeod& pos, int freq, int range,
1605 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1606 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1607 sqlite3_bind_int(d->insertCommStation, 2, freq);
1608 sqlite3_bind_int(d->insertCommStation, 3, range);
1609 return d->execInsert(d->insertCommStation);
1612 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1614 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1617 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1619 return d->insertPositioned(ty, ident, string(), aPos, 0,
1620 true /* spatial index */);
1623 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1625 d->removePositionedWithIdent(ty, aIdent);
1626 // should remove from the live cache too?
1631 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1633 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1634 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1635 d->execUpdate(d->setAirportMetar);
1638 //------------------------------------------------------------------------------
1639 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1640 FGPositioned::Filter* filter,
1643 return d->findAllByString(s, "ident", filter, exact);
1646 //------------------------------------------------------------------------------
1647 FGPositionedList NavDataCache::findAllWithName( const string& s,
1648 FGPositioned::Filter* filter,
1651 return d->findAllByString(s, "name", filter, exact);
1654 //------------------------------------------------------------------------------
1655 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1657 FGPositioned::Filter* aFilter )
1659 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1661 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1662 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1663 } else { // full type range
1664 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1665 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1668 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1669 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1670 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1671 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1673 FGPositionedRef result;
1675 while (d->stepSelect(d->findClosestWithIdent)) {
1676 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1677 if (aFilter && !aFilter->pass(pos)) {
1685 d->reset(d->findClosestWithIdent);
1690 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1692 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1693 d->execSelect1(d->getOctreeChildren);
1694 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1695 d->reset(d->getOctreeChildren);
1699 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1701 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1702 d->execInsert(d->insertOctree);
1704 #ifdef LAZY_OCTREE_UPDATES
1705 d->deferredOctreeUpdates.insert(pr);
1707 // lowest three bits of node ID are 0..7 index of the child in the parent
1708 int childIndex = nd->guid() & 0x07;
1710 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1711 // mask has bit N set where child N exists
1712 int childMask = 1 << childIndex;
1713 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1714 d->execUpdate(d->updateOctreeChildren);
1719 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1721 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1723 TypedPositionedVec r;
1724 while (d->stepSelect(d->getOctreeLeafChildren)) {
1725 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1726 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1727 r.push_back(std::make_pair(ty,
1728 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1731 d->reset(d->getOctreeLeafChildren);
1737 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1738 * implement the AirportList dialog. It's unfortunate that it needs to reside
1739 * here, but for now it's least ugly solution.
1741 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1743 sqlite3_stmt_ptr stmt;
1744 unsigned int numMatches = 0, numAllocated = 16;
1745 if (aFilter.empty()) {
1746 stmt = d->getAllAirports;
1747 numAllocated = 4096; // start much larger for all airports
1749 stmt = d->searchAirports;
1750 string s = "%" + aFilter + "%";
1751 sqlite_bind_stdstring(stmt, 1, s);
1754 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1755 while (d->stepSelect(stmt)) {
1756 if ((numMatches + 1) >= numAllocated) {
1757 numAllocated <<= 1; // double in size!
1758 // reallocate results array
1759 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1760 memcpy(nresult, result, sizeof(char*) * numMatches);
1765 // nasty code to avoid excessive string copying and allocations.
1766 // We format results as follows (note whitespace!):
1767 // ' name-of-airport-chars (ident)'
1768 // so the total length is:
1769 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1770 // which gives a grand total of 7 + name-length + icao-length.
1771 // note the ident can be three letters (non-ICAO local strip), four
1772 // (default ICAO) or more (extended format ICAO)
1773 int nameLength = sqlite3_column_bytes(stmt, 1);
1774 int icaoLength = sqlite3_column_bytes(stmt, 0);
1775 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1778 memcpy(dst, sqlite3_column_text(stmt, 1), nameLength);
1784 memcpy(dst, sqlite3_column_text(stmt, 0), icaoLength);
1789 result[numMatches++] = entry;
1792 result[numMatches] = NULL; // end of list marker
1798 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1800 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1802 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1803 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1804 } else { // full type range
1805 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1806 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1809 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1810 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1811 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1812 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1813 FGPositionedRef result;
1815 while (d->execSelect(d->findCommByFreq)) {
1816 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1817 if (aFilter && !aFilter->pass(p)) {
1825 d->reset(d->findCommByFreq);
1830 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1832 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1834 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1835 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1836 } else { // full type range
1837 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1838 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1841 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1842 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1843 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1844 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1846 return d->selectIds(d->findNavsByFreq);
1850 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1852 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1854 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1855 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1856 } else { // full type range
1857 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1858 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1861 return d->selectIds(d->findNavsByFreqNoPos);
1865 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1866 FGPositioned::Type maxTy)
1868 if (maxTy == FGPositioned::INVALID) {
1869 maxTy = ty; // single-type range
1872 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1873 sqlite3_bind_int(d->getAirportItems, 2, ty);
1874 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1876 return d->selectIds(d->getAirportItems);
1880 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1881 const std::string& ident)
1883 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1884 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1885 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1886 PositionedID result = 0;
1888 if (d->execSelect(d->getAirportItemByIdent)) {
1889 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1892 d->reset(d->getAirportItemByIdent);
1897 NavDataCache::findAirportRunway(const std::string& aName)
1899 if (aName.empty()) {
1900 return AirportRunwayPair();
1903 string_list parts = simgear::strutils::split(aName);
1904 if (parts.size() < 2) {
1905 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1906 return AirportRunwayPair();
1909 AirportRunwayPair result;
1910 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1911 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1913 if (d->execSelect(d->findAirportRunway)) {
1914 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1915 sqlite3_column_int64(d->findAirportRunway, 1));
1918 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1921 d->reset(d->findAirportRunway);
1926 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1928 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1929 sqlite3_bind_int64(d->findILS, 2, airport);
1930 sqlite_bind_stdstring(d->findILS, 3, runway);
1931 PositionedID result = 0;
1932 if (d->execSelect(d->findILS)) {
1933 result = sqlite3_column_int64(d->findILS, 0);
1936 d->reset(d->findILS);
1940 int NavDataCache::findAirway(int network, const string& aName)
1942 sqlite3_bind_int(d->findAirway, 1, network);
1943 sqlite_bind_stdstring(d->findAirway, 2, aName);
1946 if (d->execSelect(d->findAirway)) {
1948 airway = sqlite3_column_int(d->findAirway, 0);
1950 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1951 sqlite3_bind_int(d->insertAirway, 2, network);
1952 airway = d->execInsert(d->insertAirway);
1955 d->reset(d->findAirway);
1959 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1961 // assume all edges are bidirectional for the moment
1962 for (int i=0; i<2; ++i) {
1963 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1964 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1965 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1966 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1967 d->execInsert(d->insertAirwayEdge);
1969 std::swap(from, to);
1973 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1975 sqlite3_bind_int(d->isPosInAirway, 1, network);
1976 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1977 bool ok = d->execSelect(d->isPosInAirway);
1978 d->reset(d->isPosInAirway);
1983 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1985 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1986 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1988 AirwayEdgeVec result;
1989 while (d->stepSelect(d->airwayEdgesFrom)) {
1990 result.push_back(AirwayEdge(
1991 sqlite3_column_int(d->airwayEdgesFrom, 0),
1992 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1996 d->reset(d->airwayEdgesFrom);
2000 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2002 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2003 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2005 PositionedID result = 0;
2006 if (d->execSelect(d->findNavaidForRunway)) {
2007 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2010 d->reset(d->findNavaidForRunway);
2015 NavDataCache::insertParking(const std::string& name, const SGGeod& aPos,
2016 PositionedID aAirport,
2017 double aHeading, int aRadius, const std::string& aAircraftType,
2018 const std::string& aAirlines)
2020 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::PARKING, name, "", aPos, aAirport, false);
2022 // we need to insert a row into the taxi_node table, otherwise we can't maintain
2023 // the appropriate pushback flag.
2024 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2025 sqlite3_bind_int(d->insertTaxiNode, 2, 0);
2026 sqlite3_bind_int(d->insertTaxiNode, 3, 0);
2027 d->execInsert(d->insertTaxiNode);
2029 sqlite3_bind_int64(d->insertParkingPos, 1, rowId);
2030 sqlite3_bind_double(d->insertParkingPos, 2, aHeading);
2031 sqlite3_bind_int(d->insertParkingPos, 3, aRadius);
2032 sqlite_bind_stdstring(d->insertParkingPos, 4, aAircraftType);
2033 sqlite_bind_stdstring(d->insertParkingPos, 5, aAirlines);
2034 return d->execInsert(d->insertParkingPos);
2037 void NavDataCache::setParkingPushBackRoute(PositionedID parking, PositionedID pushBackNode)
2039 sqlite3_bind_int64(d->setParkingPushBack, 1, parking);
2040 sqlite3_bind_int64(d->setParkingPushBack, 2, pushBackNode);
2041 d->execUpdate(d->setParkingPushBack);
2045 NavDataCache::insertTaxiNode(const SGGeod& aPos, PositionedID aAirport, int aHoldType, bool aOnRunway)
2047 sqlite3_int64 rowId = d->insertPositioned(FGPositioned::TAXI_NODE, string(), string(), aPos, aAirport, false);
2048 sqlite3_bind_int64(d->insertTaxiNode, 1, rowId);
2049 sqlite3_bind_int(d->insertTaxiNode, 2, aHoldType);
2050 sqlite3_bind_int(d->insertTaxiNode, 3, aOnRunway);
2051 return d->execInsert(d->insertTaxiNode);
2054 void NavDataCache::insertGroundnetEdge(PositionedID aAirport, PositionedID from, PositionedID to)
2056 sqlite3_bind_int64(d->insertTaxiEdge, 1, aAirport);
2057 sqlite3_bind_int64(d->insertTaxiEdge, 2, from);
2058 sqlite3_bind_int64(d->insertTaxiEdge, 3, to);
2059 d->execInsert(d->insertTaxiEdge);
2062 PositionedIDVec NavDataCache::groundNetNodes(PositionedID aAirport, bool onlyPushback)
2064 sqlite3_stmt_ptr q = onlyPushback ? d->airportPushbackNodes : d->airportTaxiNodes;
2065 sqlite3_bind_int64(q, 1, aAirport);
2066 return d->selectIds(q);
2069 void NavDataCache::markGroundnetAsPushback(PositionedID nodeId)
2071 sqlite3_bind_int64(d->markTaxiNodeAsPushback, 1, nodeId);
2072 d->execUpdate(d->markTaxiNodeAsPushback);
2075 static double headingDifferenceDeg(double crs1, double crs2)
2077 double diff = crs2 - crs1;
2078 SG_NORMALIZE_RANGE(diff, -180.0, 180.0);
2082 PositionedID NavDataCache::findGroundNetNode(PositionedID airport, const SGGeod& aPos,
2083 bool onRunway, FGRunway* aRunway)
2085 sqlite3_stmt_ptr q = onRunway ? d->findNearestRunwayTaxiNode : d->findNearestTaxiNode;
2086 sqlite3_bind_int64(q, 1, airport);
2088 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
2089 sqlite3_bind_double(q, 2, cartPos.x());
2090 sqlite3_bind_double(q, 3, cartPos.y());
2091 sqlite3_bind_double(q, 4, cartPos.z());
2093 PositionedID result = 0;
2094 while (d->execSelect(q)) {
2095 PositionedID id = sqlite3_column_int64(q, 0);
2101 // ensure found node lies on the runway
2102 FGPositionedRef node = loadById(id);
2103 double course = SGGeodesy::courseDeg(node->geod(), aRunway->end());
2104 if (fabs(headingDifferenceDeg(course, aRunway->headingDeg())) < 3.0 ) {
2114 PositionedIDVec NavDataCache::groundNetEdgesFrom(PositionedID pos, bool onlyPushback)
2116 sqlite3_stmt_ptr q = onlyPushback ? d->pushbackEdgesFrom : d->taxiEdgesFrom;
2117 sqlite3_bind_int64(q, 1, pos);
2118 return d->selectIds(q);
2121 PositionedIDVec NavDataCache::findAirportParking(PositionedID airport, const std::string& flightType,
2124 sqlite3_bind_int64(d->findAirportParking, 1, airport);
2125 sqlite3_bind_int(d->findAirportParking, 2, radius);
2126 sqlite_bind_stdstring(d->findAirportParking, 3, flightType);
2128 return d->selectIds(d->findAirportParking);
2131 void NavDataCache::dropGroundnetFor(PositionedID aAirport)
2133 sqlite3_stmt_ptr q = d->prepare("DELETE FROM parking WHERE rowid IN (SELECT rowid FROM positioned WHERE type=?1 AND airport=?2)");
2134 sqlite3_bind_int(q, 1, FGPositioned::PARKING);
2135 sqlite3_bind_int64(q, 2, aAirport);
2138 q = d->prepare("DELETE FROM taxi_node WHERE rowid IN (SELECT rowid FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3)");
2139 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2140 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2141 sqlite3_bind_int64(q, 3, aAirport);
2144 q = d->prepare("DELETE FROM positioned WHERE (type=?1 OR type=?2) AND airport=?3");
2145 sqlite3_bind_int(q, 1, FGPositioned::TAXI_NODE);
2146 sqlite3_bind_int(q, 2, FGPositioned::PARKING);
2147 sqlite3_bind_int64(q, 3, aAirport);
2150 q = d->prepare("DELETE FROM groundnet_edge WHERE airport=?1");
2151 sqlite3_bind_int64(q, 1, aAirport);
2155 bool NavDataCache::isReadOnly() const
2160 /////////////////////////////////////////////////////////////////////////////////////////
2161 // Transaction RAII object
2163 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2168 _instance->beginTransaction();
2171 NavDataCache::Transaction::~Transaction()
2174 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2175 _instance->abortTransaction();
2179 void NavDataCache::Transaction::commit()
2181 assert(!_committed);
2183 _instance->commitTransaction();
2186 } // of namespace flightgear