1 // NavDataCache.cxx - defines a unified binary cache for navigation
2 // data, parsed from various text / XML sources.
4 // Written by James Turner, started 2012.
6 // Copyright (C) 2012 James Turner
8 // This program is free software; you can redistribute it and/or
9 // modify it under the terms of the GNU General Public License as
10 // published by the Free Software Foundation; either version 2 of the
11 // License, or (at your option) any later version.
13 // This program is distributed in the hope that it will be useful, but
14 // WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 // General Public License for more details.
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the Free Software
20 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
26 // to ensure compatability between sqlite3_int64 and PositionedID,
27 // force the type used by sqlite to match PositionedID explicitly
28 #define SQLITE_INT64_TYPE int64_t
29 #define SQLITE_UINT64_TYPE uint64_t
31 #include "NavDataCache.hxx"
36 #include <stdint.h> // for int64_t
38 #include <boost/foreach.hpp>
43 #include <simgear/structure/exception.hxx>
44 #include <simgear/debug/logstream.hxx>
45 #include <simgear/bucket/newbucket.hxx>
46 #include <simgear/misc/sg_path.hxx>
47 #include <simgear/misc/strutils.hxx>
48 #include <simgear/threads/SGThread.hxx>
49 #include <simgear/threads/SGGuard.hxx>
51 #include <Main/globals.hxx>
52 #include "markerbeacon.hxx"
53 #include "navrecord.hxx"
54 #include <Airports/simple.hxx>
55 #include <Airports/runways.hxx>
56 #include <ATC/CommStation.hxx>
58 #include <Navaids/fixlist.hxx>
59 #include <Navaids/navdb.hxx>
60 #include "PositionedOctree.hxx"
61 #include <Airports/apt_loader.hxx>
62 #include <Navaids/airways.hxx>
66 #define SG_NAVCACHE SG_GENERAL
67 //#define LAZY_OCTREE_UPDATES 1
71 const int SCHEMA_VERSION = 4;
73 // bind a std::string to a sqlite statement. The std::string must live the
74 // entire duration of the statement execution - do not pass a temporary
75 // std::string, or the compiler may delete it, freeing the C-string storage,
76 // and causing subtle memory corruption bugs!
77 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
79 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
82 // variant of the above, which does not care about the lifetime of the
84 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
86 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
89 typedef sqlite3_stmt* sqlite3_stmt_ptr;
91 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
97 SGVec3d posA(sqlite3_value_double(argv[0]),
98 sqlite3_value_double(argv[1]),
99 sqlite3_value_double(argv[2]));
101 SGVec3d posB(sqlite3_value_double(argv[3]),
102 sqlite3_value_double(argv[4]),
103 sqlite3_value_double(argv[5]));
104 sqlite3_result_double(ctx, distSqr(posA, posB));
108 static string cleanRunwayNo(const string& aRwyNo)
110 if (aRwyNo[0] == 'x') {
111 return string(); // no ident for taxiways
114 string result(aRwyNo);
115 // canonicalise runway ident
116 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
117 result = "0" + aRwyNo;
120 // trim off trailing garbage
121 if (result.size() > 2) {
122 char suffix = toupper(result[2]);
124 result = result.substr(0, 2);
131 } // anonymous namespace
137 * Thread encapsulating a cache rebuild. This is not used to parallelise
138 * the rebuild - we must still wait until completion before doing other
139 * startup, since many things rely on a complete cache. The thread is used
140 * so we don't block the main event loop for an unacceptable duration,
141 * which causes 'not responding' / spinning beachballs on Windows & Mac
143 class RebuildThread : public SGThread
146 RebuildThread(NavDataCache* cache) :
153 bool isFinished() const
155 SGGuard<SGMutex> g(_lock);
164 SG_LOG(SG_GENERAL, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
166 SGGuard<SGMutex> g(_lock);
170 NavDataCache* _cache;
171 mutable SGMutex _lock;
175 ////////////////////////////////////////////////////////////////////////////
177 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
179 class AirportTower : public FGPositioned
182 AirportTower(PositionedID& guid, PositionedID airport,
183 const string& ident, const SGGeod& pos) :
184 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
189 class NavDataCache::NavDataCachePrivate
192 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
201 ~NavDataCachePrivate()
203 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
204 sqlite3_finalize(stmt);
213 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
214 sqlite3_open_v2(path.c_str(), &db,
215 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
218 sqlite3_stmt_ptr checkTables =
219 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
221 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
222 f_distanceCartSqrFunction, NULL, NULL);
224 execSelect(checkTables);
225 bool didCreate = false;
226 if (sqlite3_column_int(checkTables, 0) == 0) {
227 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
232 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
233 writePropertyQuery = prepare("INSERT OR REPLACE INTO properties "
234 "(key, value) VALUES (?,?)");
237 writeIntProperty("schema-version", SCHEMA_VERSION);
239 int schemaVersion = outer->readIntProperty("schema-version");
240 if (schemaVersion != SCHEMA_VERSION) {
241 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
242 throw sg_exception("Navcache schema has changed");
249 void checkCacheFile()
251 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
255 sqlite3_stmt_ptr stmt = prepare("PRAGMA integrity_check(1)");
256 if (!execSelect(stmt)) {
257 throw sg_exception("DB integrity check failed to run");
260 string v = (char*) sqlite3_column_text(stmt, 0);
262 throw sg_exception("DB integrity check returned:" + v);
265 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
269 void callSqlite(int result, const string& sql)
271 if (result == SQLITE_OK)
275 if (result == SQLITE_MISUSE) {
276 errMsg = "Sqlite API abuse";
277 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
279 errMsg = sqlite3_errmsg(db);
280 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
283 throw sg_exception("Sqlite error:" + errMsg, sql);
286 void runSQL(const string& sql)
288 sqlite3_stmt_ptr stmt;
289 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
293 } catch (sg_exception& e) {
294 sqlite3_finalize(stmt);
298 sqlite3_finalize(stmt);
301 sqlite3_stmt_ptr prepare(const string& sql)
303 sqlite3_stmt_ptr stmt;
304 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
305 prepared.push_back(stmt);
309 void finalize(sqlite3_stmt_ptr s)
311 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
312 if (it == prepared.end()) {
313 throw sg_exception("Finalising statement that was not prepared");
320 void reset(sqlite3_stmt_ptr stmt)
323 if (sqlite3_reset(stmt) != SQLITE_OK) {
324 string errMsg = sqlite3_errmsg(db);
325 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
326 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
330 bool execSelect(sqlite3_stmt_ptr stmt)
332 return stepSelect(stmt);
335 bool stepSelect(sqlite3_stmt_ptr stmt)
337 int result = sqlite3_step(stmt);
338 if (result == SQLITE_ROW) {
339 return true; // at least one result row
342 if (result == SQLITE_DONE) {
343 return false; // no result rows
347 if (result == SQLITE_MISUSE) {
348 errMsg = "Sqlite API abuse";
349 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
351 errMsg = sqlite3_errmsg(db);
352 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg
353 << " while running:\n\t" << sqlite3_sql(stmt));
356 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
359 void execSelect1(sqlite3_stmt_ptr stmt)
361 if (!execSelect(stmt)) {
362 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
363 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
367 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
370 return sqlite3_last_insert_rowid(db);
373 void execUpdate(sqlite3_stmt_ptr stmt)
380 runSQL("CREATE TABLE properties ("
385 runSQL("CREATE TABLE stat_cache ("
386 "path VARCHAR unique,"
390 runSQL("CREATE TABLE positioned ("
392 "ident VARCHAR collate nocase,"
393 "name VARCHAR collate nocase,"
404 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
405 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
406 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
407 // allow efficient querying of 'all ATIS at this airport' or
408 // 'all towers at this airport'
409 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
411 runSQL("CREATE TABLE airport ("
416 runSQL("CREATE TABLE comm ("
422 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
424 runSQL("CREATE TABLE runway ("
429 "displaced_threshold FLOAT,"
436 runSQL("CREATE TABLE navaid ("
445 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
447 runSQL("CREATE TABLE octree (children INT)");
449 runSQL("CREATE TABLE airway ("
450 "ident VARCHAR collate nocase,"
451 "network INT" // high-level or low-level
454 runSQL("CREATE INDEX airway_ident ON airway(ident)");
456 runSQL("CREATE TABLE airway_edge ("
463 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
466 void prepareQueries()
468 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
469 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
471 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
472 #define AND_TYPED "AND type>=?2 AND type <=?3"
473 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
474 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
475 "(path, stamp) VALUES (?,?)");
477 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
478 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
479 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
480 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
481 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
482 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
484 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
487 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
488 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
489 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
490 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
492 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
493 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
494 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
496 insertPositionedQuery = prepare("INSERT INTO positioned "
497 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
498 "cart_x, cart_y, cart_z)"
499 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
501 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
502 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
503 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
504 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
505 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
506 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
508 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
509 " VALUES (?, ?, ?)");
510 insertRunway = prepare("INSERT INTO runway "
511 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
512 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
513 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
516 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
517 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
519 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
520 "positioned.rowid=comm.rowid AND freq_khz=?1 "
521 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
523 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
524 "positioned.rowid=navaid.rowid "
525 "AND navaid.freq=?1 " AND_TYPED
526 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
528 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
529 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
531 // for an octree branch, return the child octree nodes which exist,
532 // described as a bit-mask
533 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
535 #ifdef LAZY_OCTREE_UPDATES
536 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
538 // mask the new child value into the existing one
539 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
542 // define a new octree node (with no children)
543 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
545 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
547 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
548 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
549 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
551 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
553 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
554 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
555 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
556 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
558 // three-way join to get the navaid ident and runway ident in a single select.
559 // we're joining positioned to itself by the navaid runway, with the complication
560 // that we need to join the navaids table to get the runway ID.
561 // we also need to filter by type to excluse glideslope (GS) matches
562 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
563 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
564 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
565 "AND (nav.type=?4 OR nav.type=?5)");
567 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
568 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
570 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
571 insertAirway = prepare("INSERT INTO airway (ident, network) "
574 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
575 "VALUES (?1, ?2, ?3, ?4)");
577 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
579 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
582 void writeIntProperty(const string& key, int value)
584 sqlite_bind_stdstring(writePropertyQuery, 1, key);
585 sqlite3_bind_int(writePropertyQuery, 2, value);
586 execSelect(writePropertyQuery);
590 FGPositioned* loadFromStmt(sqlite3_stmt_ptr query);
592 FGAirport* loadAirport(sqlite_int64 rowId,
593 FGPositioned::Type ty,
594 const string& id, const string& name, const SGGeod& pos)
596 reset(loadAirportStmt);
597 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
598 execSelect1(loadAirportStmt);
599 bool hasMetar = sqlite3_column_int(loadAirportStmt, 0);
600 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
603 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
604 const string& id, const SGGeod& pos, PositionedID apt)
606 reset(loadRunwayStmt);
607 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
608 execSelect1(loadRunwayStmt);
610 double heading = sqlite3_column_double(loadRunwayStmt, 0);
611 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
612 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
613 int surface = sqlite3_column_int(loadRunwayStmt, 3);
615 if (ty == FGPositioned::TAXIWAY) {
616 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
618 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
619 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
620 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
621 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
622 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
623 displacedThreshold, stopway, surface, false);
625 if (reciprocal > 0) {
626 r->setReciprocalRunway(reciprocal);
637 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
638 const string& id, const string& name,
640 PositionedID airport)
642 reset(loadCommStation);
643 sqlite3_bind_int64(loadCommStation, 1, rowId);
644 execSelect1(loadCommStation);
646 int range = sqlite3_column_int(loadCommStation, 0);
647 int freqKhz = sqlite3_column_int(loadCommStation, 1);
649 CommStation* c = new CommStation(rowId, id, ty, pos, freqKhz, range);
650 c->setAirport(airport);
654 FGPositioned* loadNav(sqlite3_int64 rowId,
655 FGPositioned::Type ty, const string& id,
656 const string& name, const SGGeod& pos)
659 sqlite3_bind_int64(loadNavaid, 1, rowId);
660 execSelect1(loadNavaid);
662 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
663 // marker beacons are light-weight
664 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
665 (ty == FGPositioned::MM))
667 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
670 int rangeNm = sqlite3_column_int(loadNavaid, 0),
671 freq = sqlite3_column_int(loadNavaid, 1);
672 double mulituse = sqlite3_column_double(loadNavaid, 2);
673 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
675 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
678 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
679 const string& name, const SGGeod& pos, PositionedID apt,
682 SGVec3d cartPos(SGVec3d::fromGeod(pos));
684 reset(insertPositionedQuery);
685 sqlite3_bind_int(insertPositionedQuery, 1, ty);
686 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
687 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
688 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
689 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
690 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
691 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
694 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
695 assert(intersects(octreeLeaf->bbox(), cartPos));
696 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
698 sqlite3_bind_null(insertPositionedQuery, 8);
701 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
702 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
703 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
705 PositionedID r = execInsert(insertPositionedQuery);
709 FGPositioned::List findAllByString(const string& s, const string& column,
710 FGPositioned::Filter* filter, bool exact)
713 if (!exact) query += "*";
715 // build up SQL query text
716 string matchTerm = exact ? "=?1" : " LIKE ?1";
717 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
722 // find or prepare a suitable statement frrm the SQL
723 sqlite3_stmt_ptr stmt = findByStringDict[sql];
726 findByStringDict[sql] = stmt;
730 sqlite_bind_stdstring(stmt, 1, query);
732 sqlite3_bind_int(stmt, 2, filter->minType());
733 sqlite3_bind_int(stmt, 3, filter->maxType());
736 FGPositioned::List result;
737 // run the prepared SQL
738 while (stepSelect(stmt))
740 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
741 if (filter && !filter->pass(pos)) {
745 result.push_back(pos);
751 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
753 PositionedIDVec result;
754 while (stepSelect(query)) {
755 result.push_back(sqlite3_column_int64(query, 0));
760 double runwayLengthFt(PositionedID rwy)
762 reset(runwayLengthFtQuery);
763 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
764 execSelect1(runwayLengthFtQuery);
765 return sqlite3_column_double(runwayLengthFtQuery, 0);
768 void flushDeferredOctreeUpdates()
770 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
771 reset(updateOctreeChildren);
772 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
773 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
774 execUpdate(updateOctreeChildren);
777 deferredOctreeUpdates.clear();
784 /// the actual cache of ID -> instances. This holds an owning reference,
785 /// so once items are in the cache they will never be deleted until
786 /// the cache drops its reference
787 PositionedCache cache;
788 unsigned int cacheHits, cacheMisses;
790 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
791 carrierDatPath, airwayDatPath;
793 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
794 stampFileCache, statCacheCheck,
795 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
797 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
799 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
800 insertCommStation, insertNavaid;
801 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
802 setAirportPos, updateRunwayThreshold, updateILS;
804 sqlite3_stmt_ptr findClosestWithIdent;
805 // octree (spatial index) related queries
806 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
807 getOctreeLeafChildren;
809 sqlite3_stmt_ptr searchAirports;
810 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
812 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
813 sqlite3_stmt_ptr findAirportRunway,
816 sqlite3_stmt_ptr runwayLengthFtQuery;
819 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
822 // since there's many permutations of ident/name queries, we create
823 // them programtically, but cache the exact query by its raw SQL once
825 std::map<string, sqlite3_stmt_ptr> findByStringDict;
827 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
830 std::set<Octree::Branch*> deferredOctreeUpdates;
832 // if we're performing a rebuild, the thread that is doing the work.
834 std::auto_ptr<RebuildThread> rebuilder;
837 //////////////////////////////////////////////////////////////////////
839 FGPositioned* NavDataCache::NavDataCachePrivate::loadFromStmt(sqlite3_stmt_ptr query)
842 sqlite3_int64 rowid = sqlite3_column_int64(query, 0);
843 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(query, 1);
845 string ident = (char*) sqlite3_column_text(query, 2);
846 string name = (char*) sqlite3_column_text(query, 3);
847 sqlite3_int64 aptId = sqlite3_column_int64(query, 4);
848 double lon = sqlite3_column_double(query, 5);
849 double lat = sqlite3_column_double(query, 6);
850 double elev = sqlite3_column_double(query, 7);
851 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
854 case FGPositioned::AIRPORT:
855 case FGPositioned::SEAPORT:
856 case FGPositioned::HELIPORT:
857 return loadAirport(rowid, ty, ident, name, pos);
859 case FGPositioned::TOWER:
860 return new AirportTower(rowid, aptId, ident, pos);
862 case FGPositioned::RUNWAY:
863 case FGPositioned::TAXIWAY:
864 return loadRunway(rowid, ty, ident, pos, aptId);
866 case FGPositioned::LOC:
867 case FGPositioned::VOR:
868 case FGPositioned::GS:
869 case FGPositioned::ILS:
870 case FGPositioned::NDB:
871 case FGPositioned::OM:
872 case FGPositioned::MM:
873 case FGPositioned::IM:
874 case FGPositioned::DME:
875 case FGPositioned::TACAN:
876 case FGPositioned::MOBILE_TACAN:
879 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
880 if (apt->validateILSData()) {
881 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
882 // queried data above is probably invalid, force us to go around again
883 // (the next time through, validateILSData will return false)
884 return outer->loadById(rowid);
888 return loadNav(rowid, ty, ident, name, pos);
891 case FGPositioned::FIX:
892 return new FGFix(rowid, ident, pos);
894 case FGPositioned::WAYPOINT:
896 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
900 case FGPositioned::FREQ_GROUND:
901 case FGPositioned::FREQ_TOWER:
902 case FGPositioned::FREQ_ATIS:
903 case FGPositioned::FREQ_AWOS:
904 case FGPositioned::FREQ_APP_DEP:
905 case FGPositioned::FREQ_ENROUTE:
906 case FGPositioned::FREQ_CLEARANCE:
907 case FGPositioned::FREQ_UNICOM:
908 return loadComm(rowid, ty, ident, name, pos, aptId);
916 static NavDataCache* static_instance = NULL;
918 NavDataCache::NavDataCache()
920 const int MAX_TRIES = 3;
921 SGPath homePath(globals->get_fg_home());
922 homePath.append("navdata.cache");
924 for (int t=0; t < MAX_TRIES; ++t) {
926 d.reset(new NavDataCachePrivate(homePath, this));
928 //d->checkCacheFile();
929 // reached this point with no exception, success
931 } catch (sg_exception& e) {
932 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
933 << " (attempt " << t << ")");
939 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
940 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
941 Octree::global_spatialOctree =
942 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
944 d->aptDatPath = SGPath(globals->get_fg_root());
945 d->aptDatPath.append("Airports/apt.dat.gz");
947 d->metarDatPath = SGPath(globals->get_fg_root());
948 d->metarDatPath.append("Airports/metar.dat.gz");
950 d->navDatPath = SGPath(globals->get_fg_root());
951 d->navDatPath.append("Navaids/nav.dat.gz");
953 d->fixDatPath = SGPath(globals->get_fg_root());
954 d->fixDatPath.append("Navaids/fix.dat.gz");
956 d->carrierDatPath = SGPath(globals->get_fg_root());
957 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
959 d->airwayDatPath = SGPath(globals->get_fg_root());
960 d->airwayDatPath.append("Navaids/awy.dat.gz");
963 NavDataCache::~NavDataCache()
965 assert(static_instance == this);
966 static_instance = NULL;
967 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
971 NavDataCache* NavDataCache::instance()
973 if (!static_instance) {
974 static_instance = new NavDataCache;
977 return static_instance;
980 bool NavDataCache::isRebuildRequired()
982 if (isCachedFileModified(d->aptDatPath) ||
983 isCachedFileModified(d->metarDatPath) ||
984 isCachedFileModified(d->navDatPath) ||
985 isCachedFileModified(d->fixDatPath) ||
986 isCachedFileModified(d->airwayDatPath))
988 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: rebuild required");
992 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no rebuild required");
996 bool NavDataCache::rebuild()
998 if (!d->rebuilder.get()) {
999 d->rebuilder.reset(new RebuildThread(this));
1000 d->rebuilder->start();
1003 // poll the rebuild thread
1004 bool fin = d->rebuilder->isFinished();
1006 d->rebuilder.reset(); // all done!
1011 void NavDataCache::doRebuild()
1015 d->runSQL("DELETE FROM positioned");
1016 d->runSQL("DELETE FROM airport");
1017 d->runSQL("DELETE FROM runway");
1018 d->runSQL("DELETE FROM navaid");
1019 d->runSQL("DELETE FROM comm");
1020 d->runSQL("DELETE FROM octree");
1021 d->runSQL("DELETE FROM airway");
1022 d->runSQL("DELETE FROM airway_edge");
1024 // initialise the root octree node
1025 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1030 airportDBLoad(d->aptDatPath);
1031 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1033 metarDataLoad(d->metarDatPath);
1034 stampCacheFile(d->aptDatPath);
1035 stampCacheFile(d->metarDatPath);
1038 loadFixes(d->fixDatPath);
1039 stampCacheFile(d->fixDatPath);
1040 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1043 navDBInit(d->navDatPath);
1044 stampCacheFile(d->navDatPath);
1045 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1047 loadCarrierNav(d->carrierDatPath);
1048 stampCacheFile(d->carrierDatPath);
1051 Airway::load(d->airwayDatPath);
1052 stampCacheFile(d->airwayDatPath);
1053 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1055 d->flushDeferredOctreeUpdates();
1057 d->runSQL("COMMIT");
1058 } catch (sg_exception& e) {
1059 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1060 // abandon the DB transation completely
1061 d->runSQL("ROLLBACK");
1065 int NavDataCache::readIntProperty(const string& key)
1067 d->reset(d->readPropertyQuery);
1068 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1070 if (d->execSelect(d->readPropertyQuery)) {
1071 return sqlite3_column_int(d->readPropertyQuery, 0);
1073 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1074 return 0; // no such property
1078 double NavDataCache::readDoubleProperty(const string& key)
1080 d->reset(d->readPropertyQuery);
1081 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1082 if (d->execSelect(d->readPropertyQuery)) {
1083 return sqlite3_column_double(d->readPropertyQuery, 0);
1085 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1086 return 0.0; // no such property
1090 string NavDataCache::readStringProperty(const string& key)
1092 d->reset(d->readPropertyQuery);
1093 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1094 if (d->execSelect(d->readPropertyQuery)) {
1095 return (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1097 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1098 return string(); // no such property
1102 void NavDataCache::writeIntProperty(const string& key, int value)
1104 d->writeIntProperty(key, value);
1107 void NavDataCache::writeStringProperty(const string& key, const string& value)
1109 d->reset(d->writePropertyQuery);
1110 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1111 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1112 d->execSelect(d->writePropertyQuery);
1115 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1117 d->reset(d->writePropertyQuery);
1118 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1119 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1120 d->execSelect(d->writePropertyQuery);
1123 string_list NavDataCache::readStringListProperty(const string& key)
1125 d->reset(d->readPropertyQuery);
1126 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1128 while (d->stepSelect(d->readPropertyQuery)) {
1129 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1135 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1137 d->reset(d->clearProperty);
1138 sqlite_bind_stdstring(d->clearProperty, 1, key);
1139 d->execUpdate(d->clearProperty);
1141 BOOST_FOREACH(string value, values) {
1142 d->reset(d->writePropertyMulti);
1143 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1144 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1145 d->execInsert(d->writePropertyMulti);
1149 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1151 if (!path.exists()) {
1152 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1155 d->reset(d->statCacheCheck);
1156 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1157 if (d->execSelect(d->statCacheCheck)) {
1158 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1159 return (modtime != path.modTime());
1165 void NavDataCache::stampCacheFile(const SGPath& path)
1167 d->reset(d->stampFileCache);
1168 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1169 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1170 d->execInsert(d->stampFileCache);
1174 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1180 PositionedCache::iterator it = d->cache.find(rowid);
1181 if (it != d->cache.end()) {
1183 return it->second; // cache it
1186 d->reset(d->loadPositioned);
1187 sqlite3_bind_int64(d->loadPositioned, 1, rowid);
1188 FGPositioned* pos = d->loadFromStmt(d->loadPositioned);
1190 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1196 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1199 // airports have their pos computed based on the avergae runway centres
1200 // so the pos isn't available immediately. Pass a dummy pos and avoid
1201 // doing spatial indexing until later
1202 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1204 false /* spatial index */);
1206 d->reset(d->insertAirport);
1207 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1208 d->execInsert(d->insertAirport);
1213 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1215 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1217 d->reset(d->setAirportPos);
1218 sqlite3_bind_int(d->setAirportPos, 1, item);
1219 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1220 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1221 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1223 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1224 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1226 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1227 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1228 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1231 d->execUpdate(d->setAirportPos);
1234 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1236 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1237 pos, airportId, true /* spatial index */);
1241 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1242 const SGGeod& pos, PositionedID apt,
1243 double heading, double length, double width, double displacedThreshold,
1244 double stopway, int surfaceCode)
1246 // only runways are spatially indexed; don't bother indexing taxiways
1248 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1250 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1252 d->reset(d->insertRunway);
1253 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1254 sqlite3_bind_double(d->insertRunway, 2, heading);
1255 sqlite3_bind_double(d->insertRunway, 3, length);
1256 sqlite3_bind_double(d->insertRunway, 4, width);
1257 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1258 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1259 sqlite3_bind_double(d->insertRunway, 7, stopway);
1261 return d->execInsert(d->insertRunway);
1264 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1266 d->reset(d->setRunwayReciprocal);
1267 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1268 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1269 d->execUpdate(d->setRunwayReciprocal);
1271 // and the opposite direction too!
1272 d->reset(d->setRunwayReciprocal);
1273 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1274 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1275 d->execUpdate(d->setRunwayReciprocal);
1278 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1280 d->reset(d->setRunwayILS);
1281 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1282 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1283 d->execUpdate(d->setRunwayILS);
1286 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1287 double aHeading, double aDisplacedThreshold,
1290 // update the runway information
1291 d->reset(d->updateRunwayThreshold);
1292 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1293 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1294 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1295 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1296 d->execUpdate(d->updateRunwayThreshold);
1298 // compute the new runway center, based on the threshold lat/lon and length,
1299 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1302 SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER, newCenter, dummy);
1304 // now update the positional data
1305 updatePosition(runwayID, newCenter);
1309 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1310 const string& name, const SGGeod& pos,
1311 int freq, int range, double multiuse,
1312 PositionedID apt, PositionedID runway)
1314 bool spatialIndex = true;
1315 if (ty == FGPositioned::MOBILE_TACAN) {
1316 spatialIndex = false;
1319 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1321 d->reset(d->insertNavaid);
1322 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1323 sqlite3_bind_int(d->insertNavaid, 2, freq);
1324 sqlite3_bind_int(d->insertNavaid, 3, range);
1325 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1326 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1327 return d->execInsert(d->insertNavaid);
1330 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1332 d->reset(d->updateILS);
1333 sqlite3_bind_int64(d->updateILS, 1, ils);
1334 sqlite3_bind_double(d->updateILS, 2, aHdg);
1335 d->execUpdate(d->updateILS);
1336 updatePosition(ils, newPos);
1339 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1340 const string& name, const SGGeod& pos, int freq, int range,
1343 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1344 d->reset(d->insertCommStation);
1345 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1346 sqlite3_bind_int(d->insertCommStation, 2, freq);
1347 sqlite3_bind_int(d->insertCommStation, 3, range);
1348 return d->execInsert(d->insertCommStation);
1351 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1353 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1356 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1358 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1359 true /* spatial index */);
1362 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1364 d->reset(d->setAirportMetar);
1365 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1366 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1367 d->execUpdate(d->setAirportMetar);
1370 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1371 FGPositioned::Filter* filter, bool exact)
1373 return d->findAllByString(s, "ident", filter, exact);
1376 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1377 FGPositioned::Filter* filter, bool exact)
1379 return d->findAllByString(s, "name", filter, exact);
1382 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1383 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1385 d->reset(d->findClosestWithIdent);
1386 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1388 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1389 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1390 } else { // full type range
1391 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1392 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1395 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1396 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1397 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1398 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1400 while (d->stepSelect(d->findClosestWithIdent)) {
1401 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1402 if (aFilter && !aFilter->pass(pos)) {
1409 return NULL; // no matches at all
1413 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1415 d->reset(d->getOctreeChildren);
1416 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1417 d->execSelect1(d->getOctreeChildren);
1418 return sqlite3_column_int(d->getOctreeChildren, 0);
1421 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1423 d->reset(d->insertOctree);
1424 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1425 d->execInsert(d->insertOctree);
1427 #ifdef LAZY_OCTREE_UPDATES
1428 d->deferredOctreeUpdates.insert(pr);
1430 // lowest three bits of node ID are 0..7 index of the child in the parent
1431 int childIndex = nd->guid() & 0x07;
1433 d->reset(d->updateOctreeChildren);
1434 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1435 // mask has bit N set where child N exists
1436 int childMask = 1 << childIndex;
1437 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1438 d->execUpdate(d->updateOctreeChildren);
1443 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1445 d->reset(d->getOctreeLeafChildren);
1446 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1448 TypedPositionedVec r;
1449 while (d->stepSelect(d->getOctreeLeafChildren)) {
1450 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1451 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1452 r.push_back(std::make_pair(ty,
1453 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1461 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1462 * implement the AirportList dialog. It's unfortunate that it needs to reside
1463 * here, but for now it's least ugly solution.
1465 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1467 d->reset(d->searchAirports);
1468 string s = "%" + aFilter + "%";
1469 sqlite_bind_stdstring(d->searchAirports, 1, s);
1471 unsigned int numMatches = 0, numAllocated = 16;
1472 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1474 while (d->stepSelect(d->searchAirports)) {
1475 if ((numMatches + 1) >= numAllocated) {
1476 numAllocated <<= 1; // double in size!
1477 // reallocate results array
1478 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1479 memcpy(nresult, result, sizeof(char*) * numMatches);
1484 // nasty code to avoid excessive string copying and allocations.
1485 // We format results as follows (note whitespace!):
1486 // ' name-of-airport-chars (ident)'
1487 // so the total length is:
1488 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1489 // which gives a grand total of 7 + name-length + icao-length.
1490 // note the ident can be three letters (non-ICAO local strip), four
1491 // (default ICAO) or more (extended format ICAO)
1492 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1493 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1494 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1497 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1503 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1508 result[numMatches++] = entry;
1511 result[numMatches] = NULL; // end of list marker
1516 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1518 d->reset(d->findCommByFreq);
1519 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1521 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1522 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1523 } else { // full type range
1524 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1525 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1528 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1529 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1530 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1531 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1533 if (!d->execSelect(d->findCommByFreq)) {
1537 return loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1541 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1543 d->reset(d->findNavsByFreq);
1544 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1546 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1547 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1548 } else { // full type range
1549 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1550 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1553 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1554 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1555 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1556 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1558 return d->selectIds(d->findNavsByFreq);
1562 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1564 d->reset(d->findNavsByFreqNoPos);
1565 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1567 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1568 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1569 } else { // full type range
1570 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1571 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1574 return d->selectIds(d->findNavsByFreqNoPos);
1578 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1579 FGPositioned::Type maxTy)
1581 if (maxTy == FGPositioned::INVALID) {
1582 maxTy = ty; // single-type range
1585 d->reset(d->getAirportItems);
1586 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1587 sqlite3_bind_int(d->getAirportItems, 2, ty);
1588 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1590 return d->selectIds(d->getAirportItems);
1594 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1595 const std::string& ident)
1597 d->reset(d->getAirportItemByIdent);
1598 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1599 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1600 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1602 if (!d->execSelect(d->getAirportItemByIdent)) {
1606 return sqlite3_column_int64(d->getAirportItemByIdent, 0);
1610 NavDataCache::findAirportRunway(const std::string& aName)
1612 if (aName.empty()) {
1613 return AirportRunwayPair();
1616 string_list parts = simgear::strutils::split(aName);
1617 if (parts.size() < 2) {
1618 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1619 return AirportRunwayPair();
1622 d->reset(d->findAirportRunway);
1623 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1624 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1625 if (!d->execSelect(d->findAirportRunway)) {
1626 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1627 return AirportRunwayPair();
1630 // success, extract the IDs and continue
1631 return AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1632 sqlite3_column_int64(d->findAirportRunway, 1));
1636 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1638 d->reset(d->findILS);
1639 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1640 sqlite3_bind_int64(d->findILS, 2, airport);
1641 sqlite_bind_stdstring(d->findILS, 3, runway);
1643 if (!d->execSelect(d->findILS)) {
1647 return sqlite3_column_int64(d->findILS, 0);
1650 int NavDataCache::findAirway(int network, const string& aName)
1652 d->reset(d->findAirway);
1653 sqlite3_bind_int(d->findAirway, 1, network);
1654 sqlite_bind_stdstring(d->findAirway, 2, aName);
1655 if (d->execSelect(d->findAirway)) {
1657 return sqlite3_column_int(d->findAirway, 0);
1660 d->reset(d->insertAirway);
1661 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1662 sqlite3_bind_int(d->insertAirway, 2, network);
1663 return d->execInsert(d->insertAirway);
1666 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1668 // assume all edges are bidirectional for the moment
1669 for (int i=0; i<2; ++i) {
1670 d->reset(d->insertAirwayEdge);
1671 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1672 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1673 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1674 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1675 d->execInsert(d->insertAirwayEdge);
1677 std::swap(from, to);
1681 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1683 d->reset(d->isPosInAirway);
1684 sqlite3_bind_int(d->isPosInAirway, 1, network);
1685 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1686 bool ok = d->execSelect(d->isPosInAirway);
1690 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1692 d->reset(d->airwayEdgesFrom);
1693 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1694 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1696 AirwayEdgeVec result;
1697 while (d->stepSelect(d->airwayEdgesFrom)) {
1698 result.push_back(AirwayEdge(
1699 sqlite3_column_int(d->airwayEdgesFrom, 0),
1700 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1706 } // of namespace flightgear