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) :
165 _phase(NavDataCache::REBUILD_UNKNOWN),
166 _completionPercent(0),
172 bool isFinished() const
174 SGGuard<SGMutex> g(_lock);
183 SG_LOG(SG_NAVCACHE, SG_INFO, "cache rebuild took:" << st.elapsedMSec() << "msec");
185 SGGuard<SGMutex> g(_lock);
187 _phase = NavDataCache::REBUILD_DONE;
190 NavDataCache::RebuildPhase currentPhase() const
192 NavDataCache::RebuildPhase ph;
193 SGGuard<SGMutex> g(_lock);
198 unsigned int completionPercent() const
200 unsigned int perc = 0;
201 SGGuard<SGMutex> g(_lock);
202 perc = _completionPercent;
206 void setProgress(NavDataCache::RebuildPhase ph, unsigned int percent)
208 SGGuard<SGMutex> g(_lock);
210 _completionPercent = percent;
214 NavDataCache* _cache;
215 NavDataCache::RebuildPhase _phase;
216 unsigned int _completionPercent;
217 mutable SGMutex _lock;
221 ////////////////////////////////////////////////////////////////////////////
223 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
225 class AirportTower : public FGPositioned
228 AirportTower(PositionedID& guid, PositionedID airport,
229 const string& ident, const SGGeod& pos) :
230 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
235 class NavDataCache::NavDataCachePrivate
238 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
246 transactionAborted(false)
250 ~NavDataCachePrivate()
257 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
259 readOnly = fgGetBool("/sim/fghome-readonly", false);
261 int openFlags = readOnly ? SQLITE_OPEN_READONLY :
262 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
263 // see http://code.google.com/p/flightgear-bugs/issues/detail?id=1055
264 // for the UTF8 / path logic here
265 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(path.str());
266 sqlite3_open_v2(pathUtf8.c_str(), &db, openFlags, NULL);
268 sqlite3_stmt_ptr checkTables =
269 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
271 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
272 f_distanceCartSqrFunction, NULL, NULL);
274 execSelect(checkTables);
275 bool didCreate = false;
276 if (!readOnly && (sqlite3_column_int(checkTables, 0) == 0)) {
277 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
282 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
283 writePropertyQuery = prepare("INSERT INTO properties (key, value) VALUES (?,?)");
284 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
287 writeIntProperty("schema-version", SCHEMA_VERSION);
289 int schemaVersion = outer->readIntProperty("schema-version");
290 if (schemaVersion != SCHEMA_VERSION) {
291 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
292 throw sg_exception("Navcache schema has changed");
296 // see http://www.sqlite.org/pragma.html#pragma_cache_size
297 // for the details, small cache would cause thrashing.
298 std::ostringstream q;
299 q << "PRAGMA cache_size=-" << CACHE_SIZE_KBYTES << ";";
306 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
307 sqlite3_finalize(stmt);
313 void checkCacheFile()
315 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
319 sqlite3_stmt_ptr stmt = prepare("PRAGMA quick_check(1)");
320 if (!execSelect(stmt)) {
321 throw sg_exception("DB integrity check failed to run");
324 string v = (char*) sqlite3_column_text(stmt, 0);
326 throw sg_exception("DB integrity check returned:" + v);
329 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
333 bool isCachedFileModified(const SGPath& path, bool verbose);
335 void callSqlite(int result, const string& sql)
337 if (result == SQLITE_OK)
341 if (result == SQLITE_MISUSE) {
342 errMsg = "Sqlite API abuse";
343 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
345 errMsg = sqlite3_errmsg(db);
346 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
349 throw sg_exception("Sqlite error:" + errMsg, sql);
352 void runSQL(const string& sql)
354 sqlite3_stmt_ptr stmt;
355 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
359 } catch (sg_exception&) {
360 sqlite3_finalize(stmt);
364 sqlite3_finalize(stmt);
367 sqlite3_stmt_ptr prepare(const string& sql)
369 sqlite3_stmt_ptr stmt;
370 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
371 prepared.push_back(stmt);
375 void finalize(sqlite3_stmt_ptr s)
377 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
378 if (it == prepared.end()) {
379 throw sg_exception("Finalising statement that was not prepared");
386 void reset(sqlite3_stmt_ptr stmt)
389 if (sqlite3_reset(stmt) != SQLITE_OK) {
390 string errMsg = sqlite3_errmsg(db);
391 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
392 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
396 bool execSelect(sqlite3_stmt_ptr stmt)
398 return stepSelect(stmt);
401 bool stepSelect(sqlite3_stmt_ptr stmt)
405 while (retries < MAX_RETRIES) {
406 result = sqlite3_step(stmt);
407 if (result == SQLITE_ROW) {
408 return true; // at least one result row
411 if (result == SQLITE_DONE) {
412 return false; // no result rows
415 if (result != SQLITE_BUSY) {
419 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on select, will retry:" << retries);
420 SGTimeStamp::sleepForMSec(++retries * 10);
421 } // of retry loop for DB locked
423 if (retries >= MAX_RETRIES) {
424 SG_LOG(SG_NAVCACHE, SG_ALERT, "exceeded maximum number of SQLITE_BUSY retries");
429 if (result == SQLITE_MISUSE) {
430 errMsg = "Sqlite API abuse";
431 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
433 errMsg = sqlite3_errmsg(db);
434 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " (" << result
435 << ") while running:\n\t" << sqlite3_sql(stmt));
438 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
441 void execSelect1(sqlite3_stmt_ptr stmt)
443 if (!execSelect(stmt)) {
444 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
445 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
449 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
452 sqlite3_int64 rowid = sqlite3_last_insert_rowid(db);
457 void execUpdate(sqlite3_stmt_ptr stmt)
465 string_list commands = simgear::strutils::split(SCHEMA_SQL, ";");
466 BOOST_FOREACH(std::string sql, commands) {
472 } // of commands in scheme loop
475 void prepareQueries()
477 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
479 beginTransactionStmt = prepare("BEGIN");
480 commitTransactionStmt = prepare("COMMIT");
481 rollbackTransactionStmt = prepare("ROLLBACK");
484 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
485 #define AND_TYPED "AND type>=?2 AND type <=?3"
486 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
487 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
488 "(path, stamp) VALUES (?,?)");
490 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
491 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
492 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
493 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
494 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
495 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
497 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
500 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
501 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
502 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
503 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
505 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
506 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
507 setNavaidColocated = prepare("UPDATE navaid SET colocated=?2 WHERE rowid=?1");
509 insertPositionedQuery = prepare("INSERT INTO positioned "
510 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
511 "cart_x, cart_y, cart_z)"
512 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
514 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
515 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
516 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
517 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
518 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
520 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
521 " VALUES (?, ?, ?)");
522 insertRunway = prepare("INSERT INTO runway "
523 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
524 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
525 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
527 removePOIQuery = prepare("DELETE FROM positioned WHERE type=?1 AND ident=?2");
530 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
531 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
533 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
534 "positioned.rowid=comm.rowid AND freq_khz=?1 "
535 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
537 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
538 "positioned.rowid=navaid.rowid "
539 "AND navaid.freq=?1 " AND_TYPED
540 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
542 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
543 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
545 findNavaidForRunway = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
546 "positioned.rowid=navaid.rowid AND runway=?1 AND type=?2");
548 // for an octree branch, return the child octree nodes which exist,
549 // described as a bit-mask
550 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
552 #ifdef LAZY_OCTREE_UPDATES
553 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
555 // mask the new child value into the existing one
556 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
559 // define a new octree node (with no children)
560 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
562 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
564 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
565 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
566 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
568 getAllAirports = prepare("SELECT ident, name FROM positioned WHERE type>=?1 AND type <=?2");
569 sqlite3_bind_int(getAllAirports, 1, FGPositioned::AIRPORT);
570 sqlite3_bind_int(getAllAirports, 2, FGPositioned::SEAPORT);
573 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
575 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
576 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
577 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
578 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
580 // three-way join to get the navaid ident and runway ident in a single select.
581 // we're joining positioned to itself by the navaid runway, with the complication
582 // that we need to join the navaids table to get the runway ID.
583 // we also need to filter by type to excluse glideslope (GS) matches
584 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
585 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
586 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
587 "AND (nav.type=?4 OR nav.type=?5)");
589 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
590 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
593 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
594 insertAirway = prepare("INSERT INTO airway (ident, network) "
597 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
598 "VALUES (?1, ?2, ?3, ?4)");
600 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
602 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
604 airwayEdges = prepare("SELECT a, b FROM airway_edge WHERE airway=?1");
607 void writeIntProperty(const string& key, int value)
609 sqlite_bind_stdstring(clearProperty, 1, key);
610 execUpdate(clearProperty);
612 sqlite_bind_stdstring(writePropertyQuery, 1, key);
613 sqlite3_bind_int(writePropertyQuery, 2, value);
614 execUpdate(writePropertyQuery);
618 FGPositioned* loadById(sqlite_int64 rowId, sqlite3_int64& aptId);
620 FGAirport* loadAirport(sqlite_int64 rowId,
621 FGPositioned::Type ty,
622 const string& id, const string& name, const SGGeod& pos)
624 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
625 execSelect1(loadAirportStmt);
626 bool hasMetar = (sqlite3_column_int(loadAirportStmt, 0) > 0);
627 reset(loadAirportStmt);
629 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
632 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
633 const string& id, const SGGeod& pos, PositionedID apt)
635 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
636 execSelect1(loadRunwayStmt);
638 double heading = sqlite3_column_double(loadRunwayStmt, 0);
639 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
640 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
641 int surface = sqlite3_column_int(loadRunwayStmt, 3);
643 if (ty == FGPositioned::TAXIWAY) {
644 reset(loadRunwayStmt);
645 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
646 } else if (ty == FGPositioned::HELIPAD) {
647 reset(loadRunwayStmt);
648 return new FGHelipad(rowId, apt, id, pos, heading, lengthM, widthM, surface);
650 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
651 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
652 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
653 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
654 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
655 displacedThreshold, stopway, surface);
657 if (reciprocal > 0) {
658 r->setReciprocalRunway(reciprocal);
665 reset(loadRunwayStmt);
670 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
671 const string& id, const string& name,
673 PositionedID airport)
675 sqlite3_bind_int64(loadCommStation, 1, rowId);
676 execSelect1(loadCommStation);
678 int range = sqlite3_column_int(loadCommStation, 0);
679 int freqKhz = sqlite3_column_int(loadCommStation, 1);
680 reset(loadCommStation);
682 CommStation* c = new CommStation(rowId, name, ty, pos, freqKhz, range);
683 c->setAirport(airport);
687 FGPositioned* loadNav(sqlite3_int64 rowId,
688 FGPositioned::Type ty, const string& id,
689 const string& name, const SGGeod& pos)
691 sqlite3_bind_int64(loadNavaid, 1, rowId);
692 execSelect1(loadNavaid);
694 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
695 // marker beacons are light-weight
696 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
697 (ty == FGPositioned::MM))
700 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
703 int rangeNm = sqlite3_column_int(loadNavaid, 0),
704 freq = sqlite3_column_int(loadNavaid, 1);
705 double mulituse = sqlite3_column_double(loadNavaid, 2);
706 PositionedID colocated = sqlite3_column_int64(loadNavaid, 4);
710 (ty == FGPositioned::MOBILE_TACAN)
711 ? new FGMobileNavRecord
712 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway)
714 (rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
717 n->setColocatedDME(colocated);
722 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
723 const string& name, const SGGeod& pos, PositionedID apt,
726 SGVec3d cartPos(SGVec3d::fromGeod(pos));
728 sqlite3_bind_int(insertPositionedQuery, 1, ty);
729 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
730 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
731 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
732 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
733 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
734 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
737 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
738 assert(intersects(octreeLeaf->bbox(), cartPos));
739 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
741 sqlite3_bind_null(insertPositionedQuery, 8);
744 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
745 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
746 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
748 PositionedID r = execInsert(insertPositionedQuery);
752 FGPositionedList findAllByString(const string& s, const string& column,
753 FGPositioned::Filter* filter, bool exact)
756 if (!exact) query += "%";
758 // build up SQL query text
759 string matchTerm = exact ? "=?1" : " LIKE ?1";
760 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
762 sql += " " AND_TYPED;
765 // find or prepare a suitable statement frrm the SQL
766 sqlite3_stmt_ptr stmt = findByStringDict[sql];
769 findByStringDict[sql] = stmt;
772 sqlite_bind_stdstring(stmt, 1, query);
774 sqlite3_bind_int(stmt, 2, filter->minType());
775 sqlite3_bind_int(stmt, 3, filter->maxType());
778 FGPositionedList result;
779 // run the prepared SQL
780 while (stepSelect(stmt))
782 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
783 if (filter && !filter->pass(pos)) {
787 result.push_back(pos);
794 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
796 PositionedIDVec result;
797 while (stepSelect(query)) {
798 result.push_back(sqlite3_column_int64(query, 0));
804 double runwayLengthFt(PositionedID rwy)
806 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
807 execSelect1(runwayLengthFtQuery);
808 double length = sqlite3_column_double(runwayLengthFtQuery, 0);
809 reset(runwayLengthFtQuery);
813 void flushDeferredOctreeUpdates()
815 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
816 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
817 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
818 execUpdate(updateOctreeChildren);
821 deferredOctreeUpdates.clear();
824 void removePositionedWithIdent(FGPositioned::Type ty, const std::string& aIdent)
826 sqlite3_bind_int(removePOIQuery, 1, ty);
827 sqlite_bind_stdstring(removePOIQuery, 2, aIdent);
828 execUpdate(removePOIQuery);
829 reset(removePOIQuery);
837 /// the actual cache of ID -> instances. This holds an owning reference,
838 /// so once items are in the cache they will never be deleted until
839 /// the cache drops its reference
840 PositionedCache cache;
841 unsigned int cacheHits, cacheMisses;
844 * record the levels of open transaction objects we have
846 unsigned int transactionLevel;
847 bool transactionAborted;
848 sqlite3_stmt_ptr beginTransactionStmt, commitTransactionStmt, rollbackTransactionStmt;
850 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath, poiDatPath,
851 carrierDatPath, airwayDatPath;
853 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
854 stampFileCache, statCacheCheck,
855 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
857 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
859 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
860 insertCommStation, insertNavaid;
861 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS, setNavaidColocated,
863 sqlite3_stmt_ptr removePOIQuery;
865 sqlite3_stmt_ptr findClosestWithIdent;
866 // octree (spatial index) related queries
867 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
868 getOctreeLeafChildren;
870 sqlite3_stmt_ptr searchAirports, getAllAirports;
871 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
872 findNavsByFreqNoPos, findNavaidForRunway;
873 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
874 sqlite3_stmt_ptr findAirportRunway,
877 sqlite3_stmt_ptr runwayLengthFtQuery;
880 sqlite3_stmt_ptr findAirway, insertAirwayEdge,
881 isPosInAirway, airwayEdgesFrom,
882 insertAirway, airwayEdges;
884 // since there's many permutations of ident/name queries, we create
885 // them programtically, but cache the exact query by its raw SQL once
887 std::map<string, sqlite3_stmt_ptr> findByStringDict;
889 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
892 std::set<Octree::Branch*> deferredOctreeUpdates;
894 // if we're performing a rebuild, the thread that is doing the work.
896 std::auto_ptr<RebuildThread> rebuilder;
899 //////////////////////////////////////////////////////////////////////
901 FGPositioned* NavDataCache::NavDataCachePrivate::loadById(sqlite3_int64 rowid,
902 sqlite3_int64& aptId)
905 sqlite3_bind_int64(loadPositioned, 1, rowid);
906 execSelect1(loadPositioned);
908 assert(rowid == sqlite3_column_int64(loadPositioned, 0));
909 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(loadPositioned, 1);
911 PositionedID prowid = static_cast<PositionedID>(rowid);
912 string ident = (char*) sqlite3_column_text(loadPositioned, 2);
913 string name = (char*) sqlite3_column_text(loadPositioned, 3);
914 aptId = sqlite3_column_int64(loadPositioned, 4);
915 double lon = sqlite3_column_double(loadPositioned, 5);
916 double lat = sqlite3_column_double(loadPositioned, 6);
917 double elev = sqlite3_column_double(loadPositioned, 7);
918 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
920 reset(loadPositioned);
923 case FGPositioned::AIRPORT:
924 case FGPositioned::SEAPORT:
925 case FGPositioned::HELIPORT:
926 return loadAirport(rowid, ty, ident, name, pos);
928 case FGPositioned::TOWER:
929 return new AirportTower(prowid, aptId, ident, pos);
931 case FGPositioned::RUNWAY:
932 case FGPositioned::HELIPAD:
933 case FGPositioned::TAXIWAY:
934 return loadRunway(rowid, ty, ident, pos, aptId);
936 case FGPositioned::LOC:
937 case FGPositioned::VOR:
938 case FGPositioned::GS:
939 case FGPositioned::ILS:
940 case FGPositioned::NDB:
941 case FGPositioned::OM:
942 case FGPositioned::MM:
943 case FGPositioned::IM:
944 case FGPositioned::DME:
945 case FGPositioned::TACAN:
946 case FGPositioned::MOBILE_TACAN:
947 return loadNav(rowid, ty, ident, name, pos);
949 case FGPositioned::FIX:
950 return new FGFix(rowid, ident, pos);
952 case FGPositioned::WAYPOINT:
953 case FGPositioned::COUNTRY:
954 case FGPositioned::CITY:
955 case FGPositioned::TOWN:
956 case FGPositioned::VILLAGE:
958 FGPositioned* wpt = new FGPositioned(rowid, ty, ident, pos);
962 case FGPositioned::FREQ_GROUND:
963 case FGPositioned::FREQ_TOWER:
964 case FGPositioned::FREQ_ATIS:
965 case FGPositioned::FREQ_AWOS:
966 case FGPositioned::FREQ_APP_DEP:
967 case FGPositioned::FREQ_ENROUTE:
968 case FGPositioned::FREQ_CLEARANCE:
969 case FGPositioned::FREQ_UNICOM:
970 return loadComm(rowid, ty, ident, name, pos, aptId);
977 bool NavDataCache::NavDataCachePrivate::isCachedFileModified(const SGPath& path, bool verbose)
979 if (!path.exists()) {
980 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
983 sqlite_bind_temp_stdstring(statCacheCheck, 1, path.str());
984 bool isModified = true;
985 sgDebugPriority logLevel = verbose ? SG_WARN : SG_DEBUG;
986 if (execSelect(statCacheCheck)) {
987 time_t modtime = sqlite3_column_int64(statCacheCheck, 0);
988 time_t delta = std::labs(modtime - path.modTime());
991 SG_LOG(SG_NAVCACHE, logLevel, "NavCache: rebuild required for " << path <<
992 ". Timestamps: " << modtime << " != " << path.modTime());
996 SG_LOG(SG_NAVCACHE, SG_DEBUG, "NavCache: no rebuild required for " << path);
999 isModified = (delta != 0);
1001 SG_LOG(SG_NAVCACHE, logLevel, "NavCache: initial build required for " << path);
1004 reset(statCacheCheck);
1008 static NavDataCache* static_instance = NULL;
1010 NavDataCache::NavDataCache()
1012 const int MAX_TRIES = 3;
1013 SGPath homePath(globals->get_fg_home());
1015 std::ostringstream os;
1016 string_list versionParts = simgear::strutils::split(VERSION, ".");
1017 if (versionParts.size() < 2) {
1018 os << "navdata.cache";
1020 os << "navdata_" << versionParts[0] << "_" << versionParts[1] << ".cache";
1023 homePath.append(os.str());
1025 // permit additional DB connections from the same process
1026 sqlite3_config(SQLITE_CONFIG_MULTITHREAD);
1028 for (int t=0; t < MAX_TRIES; ++t) {
1030 d.reset(new NavDataCachePrivate(homePath, this));
1032 //d->checkCacheFile();
1033 // reached this point with no exception, success
1035 } catch (sg_exception& e) {
1036 SG_LOG(SG_NAVCACHE, t == 0 ? SG_WARN : SG_ALERT, "NavCache: init failed:" << e.what()
1037 << " (attempt " << t << ")");
1040 // only wipe the existing if not readonly
1041 if (!fgGetBool("/sim/fghome-readonly", false)) {
1047 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
1048 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
1049 Octree::global_spatialOctree =
1050 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
1052 d->aptDatPath = SGPath(globals->get_fg_root());
1053 d->aptDatPath.append("Airports/apt.dat.gz");
1055 d->metarDatPath = SGPath(globals->get_fg_root());
1056 d->metarDatPath.append("Airports/metar.dat.gz");
1058 d->navDatPath = SGPath(globals->get_fg_root());
1059 d->navDatPath.append("Navaids/nav.dat.gz");
1061 d->fixDatPath = SGPath(globals->get_fg_root());
1062 d->fixDatPath.append("Navaids/fix.dat.gz");
1064 d->poiDatPath = SGPath(globals->get_fg_root());
1065 d->poiDatPath.append("Navaids/poi.dat.gz");
1067 d->carrierDatPath = SGPath(globals->get_fg_root());
1068 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
1070 d->airwayDatPath = SGPath(globals->get_fg_root());
1071 d->airwayDatPath.append("Navaids/awy.dat.gz");
1074 NavDataCache::~NavDataCache()
1076 assert(static_instance == this);
1077 static_instance = NULL;
1081 NavDataCache* NavDataCache::createInstance()
1083 static_instance = new NavDataCache;
1084 return static_instance;
1087 NavDataCache* NavDataCache::instance()
1089 return static_instance;
1092 bool NavDataCache::isRebuildRequired()
1098 if (flightgear::Options::sharedInstance()->isOptionSet("restore-defaults")) {
1099 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: restore-defaults requested, will rebuild cache");
1103 if (d->isCachedFileModified(d->aptDatPath, true) ||
1104 d->isCachedFileModified(d->metarDatPath, true) ||
1105 d->isCachedFileModified(d->navDatPath, true) ||
1106 d->isCachedFileModified(d->fixDatPath, true) ||
1107 d->isCachedFileModified(d->carrierDatPath, true) ||
1108 // since POI loading is disabled on Windows, don't check for it
1109 // this caused: https://code.google.com/p/flightgear-bugs/issues/detail?id=1227
1111 d->isCachedFileModified(d->poiDatPath, true) ||
1113 d->isCachedFileModified(d->airwayDatPath, true))
1115 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: main cache rebuild required");
1119 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no main cache rebuild required");
1123 NavDataCache::RebuildPhase NavDataCache::rebuild()
1125 if (!d->rebuilder.get()) {
1126 d->rebuilder.reset(new RebuildThread(this));
1127 d->rebuilder->start();
1130 // poll the rebuild thread
1131 RebuildPhase phase = d->rebuilder->currentPhase();
1132 if (phase == REBUILD_DONE) {
1133 d->rebuilder.reset(); // all done!
1138 unsigned int NavDataCache::rebuildPhaseCompletionPercentage() const
1140 if (!d->rebuilder.get()) {
1144 return d->rebuilder->completionPercent();
1147 void NavDataCache::setRebuildPhaseProgress(RebuildPhase ph, unsigned int percent)
1149 if (!d->rebuilder.get()) {
1153 d->rebuilder->setProgress(ph, percent);
1156 void NavDataCache::doRebuild()
1159 d->close(); // completely close the sqlite object
1160 d->path.remove(); // remove the file on disk
1161 d->init(); // start again from scratch
1163 // initialise the root octree node
1164 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
1168 Transaction txn(this);
1171 airportDBLoad(d->aptDatPath);
1172 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
1174 setRebuildPhaseProgress(REBUILD_UNKNOWN);
1175 metarDataLoad(d->metarDatPath);
1176 stampCacheFile(d->aptDatPath);
1177 stampCacheFile(d->metarDatPath);
1180 loadFixes(d->fixDatPath);
1181 stampCacheFile(d->fixDatPath);
1182 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
1185 navDBInit(d->navDatPath);
1186 stampCacheFile(d->navDatPath);
1187 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
1189 setRebuildPhaseProgress(REBUILD_UNKNOWN);
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());
1206 setRebuildPhaseProgress(REBUILD_UNKNOWN);
1209 SG_LOG(SG_NAVCACHE, SG_INFO, "POI commit took:" << st.elapsedMSec());
1214 Transaction txn(this);
1215 loadCarrierNav(d->carrierDatPath);
1216 stampCacheFile(d->carrierDatPath);
1219 Airway::load(d->airwayDatPath);
1220 stampCacheFile(d->airwayDatPath);
1221 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
1223 d->flushDeferredOctreeUpdates();
1225 string sceneryPaths = simgear::strutils::join(globals->get_fg_scenery(), ";");
1226 writeStringProperty("scenery_paths", sceneryPaths);
1230 SG_LOG(SG_NAVCACHE, SG_INFO, "final commit took:" << st.elapsedMSec());
1234 } catch (sg_exception& e) {
1235 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
1239 int NavDataCache::readIntProperty(const string& key)
1241 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1244 if (d->execSelect(d->readPropertyQuery)) {
1245 result = sqlite3_column_int(d->readPropertyQuery, 0);
1247 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1250 d->reset(d->readPropertyQuery);
1254 double NavDataCache::readDoubleProperty(const string& key)
1256 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1257 double result = 0.0;
1258 if (d->execSelect(d->readPropertyQuery)) {
1259 result = sqlite3_column_double(d->readPropertyQuery, 0);
1261 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1264 d->reset(d->readPropertyQuery);
1268 string NavDataCache::readStringProperty(const string& key)
1270 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1272 if (d->execSelect(d->readPropertyQuery)) {
1273 result = (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1275 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1278 d->reset(d->readPropertyQuery);
1282 void NavDataCache::writeIntProperty(const string& key, int value)
1284 d->writeIntProperty(key, value);
1287 void NavDataCache::writeStringProperty(const string& key, const string& value)
1289 sqlite_bind_stdstring(d->clearProperty, 1, key);
1290 d->execUpdate(d->clearProperty);
1292 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1293 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1294 d->execUpdate(d->writePropertyQuery);
1297 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1299 sqlite_bind_stdstring(d->clearProperty, 1, key);
1300 d->execUpdate(d->clearProperty);
1302 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1303 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1304 d->execUpdate(d->writePropertyQuery);
1307 string_list NavDataCache::readStringListProperty(const string& key)
1309 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1311 while (d->stepSelect(d->readPropertyQuery)) {
1312 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1314 d->reset(d->readPropertyQuery);
1319 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1321 sqlite_bind_stdstring(d->clearProperty, 1, key);
1322 d->execUpdate(d->clearProperty);
1324 BOOST_FOREACH(string value, values) {
1325 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1326 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1327 d->execInsert(d->writePropertyMulti);
1331 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1333 return d->isCachedFileModified(path, false);
1336 void NavDataCache::stampCacheFile(const SGPath& path)
1338 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1339 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1340 d->execInsert(d->stampFileCache);
1343 void NavDataCache::beginTransaction()
1345 if (d->transactionLevel == 0) {
1346 d->transactionAborted = false;
1347 d->stepSelect(d->beginTransactionStmt);
1348 sqlite3_reset(d->beginTransactionStmt);
1351 ++d->transactionLevel;
1354 void NavDataCache::commitTransaction()
1356 assert(d->transactionLevel > 0);
1357 if (--d->transactionLevel == 0) {
1358 // if a nested transaction aborted, we might end up here, but must
1359 // still abort the entire transaction. That's bad, but safer than
1361 sqlite3_stmt_ptr q = d->transactionAborted ? d->rollbackTransactionStmt : d->commitTransactionStmt;
1365 while (retries < MAX_RETRIES) {
1366 result = sqlite3_step(q);
1367 if (result == SQLITE_DONE) {
1371 // see http://www.sqlite.org/c3ref/get_autocommit.html for a hint
1372 // what's going on here: autocommit in inactive inside BEGIN, so if
1373 // it's active, the DB was rolled-back
1374 if (sqlite3_get_autocommit(d->db)) {
1375 SG_LOG(SG_NAVCACHE, SG_ALERT, "commit: was rolled back!" << retries);
1376 d->transactionAborted = true;
1380 if (result != SQLITE_BUSY) {
1384 SGTimeStamp::sleepForMSec(++retries * 10);
1385 SG_LOG(SG_NAVCACHE, SG_ALERT, "NavCache contention on commit, will retry:" << retries);
1386 } // of retry loop for DB busy
1389 if (result != SQLITE_DONE) {
1390 errMsg = sqlite3_errmsg(d->db);
1391 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " for " << result
1392 << " while running:\n\t" << sqlite3_sql(q));
1399 void NavDataCache::abortTransaction()
1401 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: aborting transaction");
1403 assert(d->transactionLevel > 0);
1404 if (--d->transactionLevel == 0) {
1405 d->stepSelect(d->rollbackTransactionStmt);
1406 sqlite3_reset(d->rollbackTransactionStmt);
1409 d->transactionAborted = true;
1412 FGPositionedRef NavDataCache::loadById(PositionedID rowid)
1418 PositionedCache::iterator it = d->cache.find(rowid);
1419 if (it != d->cache.end()) {
1421 return it->second; // cache it
1424 sqlite3_int64 aptId;
1425 FGPositioned* pos = d->loadById(rowid, aptId);
1426 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1429 // when we loaded an ILS, we must apply per-airport changes
1430 if ((pos->type() == FGPositioned::ILS) && (aptId > 0)) {
1431 FGAirport* apt = FGPositioned::loadById<FGAirport>(aptId);
1432 apt->validateILSData();
1438 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1441 // airports have their pos computed based on the avergae runway centres
1442 // so the pos isn't available immediately. Pass a dummy pos and avoid
1443 // doing spatial indexing until later
1444 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1446 false /* spatial index */);
1448 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1449 d->execInsert(d->insertAirport);
1454 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1456 if (d->cache.find(item) != d->cache.end()) {
1457 SG_LOG(SG_NAVCACHE, SG_DEBUG, "updating position of an item in the cache");
1458 d->cache[item]->modifyPosition(pos);
1461 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1463 sqlite3_bind_int(d->setAirportPos, 1, item);
1464 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1465 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1466 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1468 // bug 905; the octree leaf may change here, but the leaf may already be
1469 // loaded, and caching its children. (Either the old or new leaf!). Worse,
1470 // we may be called here as a result of loading one of those leaf's children.
1471 // instead of dealing with all those possibilites, such as modifying
1472 // the in-memory leaf's STL child container, we simply leave the runtime
1473 // structures alone. This is fine providing items do no move very far, since
1474 // all the spatial searches ultimately use the items' real cartesian position,
1475 // which was updated above.
1476 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1477 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1479 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1480 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1481 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1484 d->execUpdate(d->setAirportPos);
1487 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1489 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1490 pos, airportId, true /* spatial index */);
1494 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1495 const SGGeod& pos, PositionedID apt,
1496 double heading, double length, double width, double displacedThreshold,
1497 double stopway, int surfaceCode)
1499 // only runways are spatially indexed; don't bother indexing taxiways
1501 bool spatialIndex = ( ty == FGPositioned::RUNWAY || ty == FGPositioned::HELIPAD);
1503 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1505 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1506 sqlite3_bind_double(d->insertRunway, 2, heading);
1507 sqlite3_bind_double(d->insertRunway, 3, length);
1508 sqlite3_bind_double(d->insertRunway, 4, width);
1509 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1510 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1511 sqlite3_bind_double(d->insertRunway, 7, stopway);
1513 return d->execInsert(d->insertRunway);
1516 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1518 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1519 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1520 d->execUpdate(d->setRunwayReciprocal);
1522 // and the opposite direction too!
1523 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1524 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1525 d->execUpdate(d->setRunwayReciprocal);
1528 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1530 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1531 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1532 d->execUpdate(d->setRunwayILS);
1534 // and the in-memory one
1535 if (d->cache.find(runway) != d->cache.end()) {
1536 FGRunway* instance = (FGRunway*) d->cache[runway].ptr();
1537 instance->setILS(ils);
1542 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1543 const string& name, const SGGeod& pos,
1544 int freq, int range, double multiuse,
1545 PositionedID apt, PositionedID runway)
1547 bool spatialIndex = true;
1548 if (ty == FGPositioned::MOBILE_TACAN) {
1549 spatialIndex = false;
1552 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1554 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1555 sqlite3_bind_int(d->insertNavaid, 2, freq);
1556 sqlite3_bind_int(d->insertNavaid, 3, range);
1557 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1558 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1559 sqlite3_bind_int64(d->insertNavaid, 6, 0);
1560 return d->execInsert(d->insertNavaid);
1563 void NavDataCache::setNavaidColocated(PositionedID navaid, PositionedID colocatedDME)
1565 // Update DB entries...
1566 sqlite3_bind_int64(d->setNavaidColocated, 1, navaid);
1567 sqlite3_bind_int64(d->setNavaidColocated, 2, colocatedDME);
1568 d->execUpdate(d->setNavaidColocated);
1570 // ...and the in-memory copy of the navrecord
1571 if (d->cache.find(navaid) != d->cache.end()) {
1572 FGNavRecord* rec = (FGNavRecord*) d->cache[navaid].get();
1573 rec->setColocatedDME(colocatedDME);
1577 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1578 const string& name, const SGGeod& pos, int freq, int range,
1581 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1582 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1583 sqlite3_bind_int(d->insertCommStation, 2, freq);
1584 sqlite3_bind_int(d->insertCommStation, 3, range);
1585 return d->execInsert(d->insertCommStation);
1588 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1590 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1593 PositionedID NavDataCache::createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos)
1595 return d->insertPositioned(ty, ident, string(), aPos, 0,
1596 true /* spatial index */);
1599 bool NavDataCache::removePOI(FGPositioned::Type ty, const std::string& aIdent)
1601 d->removePositionedWithIdent(ty, aIdent);
1602 // should remove from the live cache too?
1607 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1609 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1610 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1611 d->execUpdate(d->setAirportMetar);
1614 //------------------------------------------------------------------------------
1615 FGPositionedList NavDataCache::findAllWithIdent( const string& s,
1616 FGPositioned::Filter* filter,
1619 return d->findAllByString(s, "ident", filter, exact);
1622 //------------------------------------------------------------------------------
1623 FGPositionedList NavDataCache::findAllWithName( const string& s,
1624 FGPositioned::Filter* filter,
1627 return d->findAllByString(s, "name", filter, exact);
1630 //------------------------------------------------------------------------------
1631 FGPositionedRef NavDataCache::findClosestWithIdent( const string& aIdent,
1633 FGPositioned::Filter* aFilter )
1635 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1637 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1638 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1639 } else { // full type range
1640 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1641 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1644 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1645 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1646 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1647 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1649 FGPositionedRef result;
1651 while (d->stepSelect(d->findClosestWithIdent)) {
1652 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1653 if (aFilter && !aFilter->pass(pos)) {
1661 d->reset(d->findClosestWithIdent);
1666 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1668 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1669 d->execSelect1(d->getOctreeChildren);
1670 int children = sqlite3_column_int(d->getOctreeChildren, 0);
1671 d->reset(d->getOctreeChildren);
1675 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1677 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1678 d->execInsert(d->insertOctree);
1680 #ifdef LAZY_OCTREE_UPDATES
1681 d->deferredOctreeUpdates.insert(pr);
1683 // lowest three bits of node ID are 0..7 index of the child in the parent
1684 int childIndex = nd->guid() & 0x07;
1686 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1687 // mask has bit N set where child N exists
1688 int childMask = 1 << childIndex;
1689 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1690 d->execUpdate(d->updateOctreeChildren);
1695 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1697 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1699 TypedPositionedVec r;
1700 while (d->stepSelect(d->getOctreeLeafChildren)) {
1701 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1702 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1703 r.push_back(std::make_pair(ty,
1704 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1707 d->reset(d->getOctreeLeafChildren);
1713 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1714 * implement the AirportList dialog. It's unfortunate that it needs to reside
1715 * here, but for now it's least ugly solution.
1717 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1719 sqlite3_stmt_ptr stmt;
1720 unsigned int numMatches = 0, numAllocated = 16;
1721 string searchTerm("%" + aFilter + "%");
1722 if (aFilter.empty()) {
1723 stmt = d->getAllAirports;
1724 numAllocated = 4096; // start much larger for all airports
1726 stmt = d->searchAirports;
1727 sqlite_bind_stdstring(stmt, 1, searchTerm);
1730 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1731 while (d->stepSelect(stmt)) {
1732 if ((numMatches + 1) >= numAllocated) {
1733 numAllocated <<= 1; // double in size!
1734 // reallocate results array
1735 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1736 memcpy(nresult, result, sizeof(char*) * numMatches);
1741 // nasty code to avoid excessive string copying and allocations.
1742 // We format results as follows (note whitespace!):
1743 // ' name-of-airport-chars (ident)'
1744 // so the total length is:
1745 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1746 // which gives a grand total of 7 + name-length + icao-length.
1747 // note the ident can be three letters (non-ICAO local strip), four
1748 // (default ICAO) or more (extended format ICAO)
1749 int nameLength = sqlite3_column_bytes(stmt, 1);
1750 int icaoLength = sqlite3_column_bytes(stmt, 0);
1751 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1754 memcpy(dst, sqlite3_column_text(stmt, 1), nameLength);
1760 memcpy(dst, sqlite3_column_text(stmt, 0), icaoLength);
1765 result[numMatches++] = entry;
1768 result[numMatches] = NULL; // end of list marker
1774 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1776 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1778 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1779 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1780 } else { // full type range
1781 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1782 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1785 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1786 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1787 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1788 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1789 FGPositionedRef result;
1791 while (d->execSelect(d->findCommByFreq)) {
1792 FGPositioned* p = loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1793 if (aFilter && !aFilter->pass(p)) {
1801 d->reset(d->findCommByFreq);
1806 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1808 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1810 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1811 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1812 } else { // full type range
1813 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1814 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1817 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1818 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1819 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1820 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1822 return d->selectIds(d->findNavsByFreq);
1826 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1828 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1830 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1831 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1832 } else { // full type range
1833 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1834 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1837 return d->selectIds(d->findNavsByFreqNoPos);
1841 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1842 FGPositioned::Type maxTy)
1844 if (maxTy == FGPositioned::INVALID) {
1845 maxTy = ty; // single-type range
1848 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1849 sqlite3_bind_int(d->getAirportItems, 2, ty);
1850 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1852 return d->selectIds(d->getAirportItems);
1856 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1857 const std::string& ident)
1859 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1860 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1861 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1862 PositionedID result = 0;
1864 if (d->execSelect(d->getAirportItemByIdent)) {
1865 result = sqlite3_column_int64(d->getAirportItemByIdent, 0);
1868 d->reset(d->getAirportItemByIdent);
1873 NavDataCache::findAirportRunway(const std::string& aName)
1875 if (aName.empty()) {
1876 return AirportRunwayPair();
1879 string_list parts = simgear::strutils::split(aName);
1880 if (parts.size() < 2) {
1881 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1882 return AirportRunwayPair();
1885 AirportRunwayPair result;
1886 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1887 sqlite_bind_stdstring(d->findAirportRunway, 2, cleanRunwayNo(parts[1]));
1889 if (d->execSelect(d->findAirportRunway)) {
1890 result = AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1891 sqlite3_column_int64(d->findAirportRunway, 1));
1894 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1897 d->reset(d->findAirportRunway);
1902 NavDataCache::findILS(PositionedID airport, const string& aRunway, const string& navIdent)
1904 string runway(cleanRunwayNo(aRunway));
1906 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1907 sqlite3_bind_int64(d->findILS, 2, airport);
1908 sqlite_bind_stdstring(d->findILS, 3, runway);
1909 PositionedID result = 0;
1910 if (d->execSelect(d->findILS)) {
1911 result = sqlite3_column_int64(d->findILS, 0);
1914 d->reset(d->findILS);
1918 int NavDataCache::findAirway(int network, const string& aName)
1920 sqlite3_bind_int(d->findAirway, 1, network);
1921 sqlite_bind_stdstring(d->findAirway, 2, aName);
1924 if (d->execSelect(d->findAirway)) {
1926 airway = sqlite3_column_int(d->findAirway, 0);
1928 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1929 sqlite3_bind_int(d->insertAirway, 2, network);
1930 airway = d->execInsert(d->insertAirway);
1933 d->reset(d->findAirway);
1937 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1939 // assume all edges are bidirectional for the moment
1940 for (int i=0; i<2; ++i) {
1941 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1942 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1943 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1944 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1945 d->execInsert(d->insertAirwayEdge);
1947 std::swap(from, to);
1951 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1953 sqlite3_bind_int(d->isPosInAirway, 1, network);
1954 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1955 bool ok = d->execSelect(d->isPosInAirway);
1956 d->reset(d->isPosInAirway);
1961 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1963 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1964 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1966 AirwayEdgeVec result;
1967 while (d->stepSelect(d->airwayEdgesFrom)) {
1968 result.push_back(AirwayEdge(
1969 sqlite3_column_int(d->airwayEdgesFrom, 0),
1970 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1974 d->reset(d->airwayEdgesFrom);
1978 PositionedIDVec NavDataCache::airwayWaypts(int id)
1980 sqlite3_bind_int(d->airwayEdges, 1, id);
1982 typedef std::pair<PositionedID, PositionedID> Edge;
1983 typedef std::deque<Edge> EdgeVec;
1984 typedef std::deque<PositionedID> PositionedIDDeque;
1986 // build up the EdgeVec, order is arbitrary
1988 while (d->stepSelect(d->airwayEdges)) {
1989 rawEdges.push_back(Edge(sqlite3_column_int64(d->airwayEdges, 0),
1990 sqlite3_column_int64(d->airwayEdges, 1)
1994 d->reset(d->airwayEdges);
1995 if (rawEdges.empty()) {
1996 return PositionedIDVec();
2000 PositionedIDDeque linearAirway;
2001 PositionedID firstId = rawEdges.front().first,
2002 lastId = rawEdges.front().second;
2003 std::set<PositionedID> seen;
2005 // first edge is trivial
2006 linearAirway.push_back(firstId);
2007 linearAirway.push_back(lastId);
2008 seen.insert(firstId);
2009 seen.insert(lastId);
2010 rawEdges.pop_front();
2012 while (!rawEdges.empty()) {
2013 Edge e = rawEdges.front();
2014 rawEdges.pop_front();
2016 // look for new segments
2017 if (e.first == firstId) {
2018 linearAirway.push_front(e.second);
2019 seen.insert(e.second);
2024 if (e.first == lastId) {
2025 linearAirway.push_back(e.second);
2026 seen.insert(e.second);
2031 // look for seen segments - presumed to be reversed internal edges
2032 if (seen.find(e.first) != seen.end()) {
2033 // if it's the inverse of interior edge, both ends must have been
2034 // seen. Otherwise it should have been an exterior edge and
2035 // handled by the case above.
2036 assert(seen.find(e.second) != seen.end());
2040 // push back to try later on
2041 rawEdges.push_back(e);
2044 return PositionedIDVec(linearAirway.begin(), linearAirway.end());
2047 PositionedID NavDataCache::findNavaidForRunway(PositionedID runway, FGPositioned::Type ty)
2049 sqlite3_bind_int64(d->findNavaidForRunway, 1, runway);
2050 sqlite3_bind_int(d->findNavaidForRunway, 2, ty);
2052 PositionedID result = 0;
2053 if (d->execSelect(d->findNavaidForRunway)) {
2054 result = sqlite3_column_int64(d->findNavaidForRunway, 0);
2057 d->reset(d->findNavaidForRunway);
2061 bool NavDataCache::isReadOnly() const
2066 SGPath NavDataCache::path() const
2071 /////////////////////////////////////////////////////////////////////////////////////////
2072 // Transaction RAII object
2074 NavDataCache::Transaction::Transaction(NavDataCache* cache) :
2079 _instance->beginTransaction();
2082 NavDataCache::Transaction::~Transaction()
2085 SG_LOG(SG_NAVCACHE, SG_INFO, "aborting cache transaction!");
2086 _instance->abortTransaction();
2090 void NavDataCache::Transaction::commit()
2092 assert(!_committed);
2094 _instance->commitTransaction();
2097 /////////////////////////////////////////////////////////////////////////////
2099 class NavDataCache::ThreadedGUISearch::ThreadedGUISearchPrivate : public SGThread
2102 ThreadedGUISearchPrivate() :
2111 int err = sqlite3_step(query);
2112 if (err == SQLITE_DONE) {
2114 } else if (err == SQLITE_ROW) {
2115 PositionedID r = sqlite3_column_int64(query, 0);
2116 SGGuard<SGMutex> g(lock);
2117 results.push_back(r);
2118 } else if (err == SQLITE_BUSY) {
2119 // sleep a tiny amount
2120 SGTimeStamp::sleepForMSec(1);
2122 std::string errMsg = sqlite3_errmsg(db);
2123 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running threaded search query");
2127 SGGuard<SGMutex> g(lock);
2133 sqlite3_stmt_ptr query;
2134 PositionedIDVec results;
2139 NavDataCache::ThreadedGUISearch::ThreadedGUISearch(const std::string& term) :
2140 d(new ThreadedGUISearchPrivate)
2142 SGPath p = NavDataCache::instance()->path();
2143 int openFlags = SQLITE_OPEN_READONLY;
2144 std::string pathUtf8 = simgear::strutils::convertWindowsLocal8BitToUtf8(p.str());
2145 sqlite3_open_v2(pathUtf8.c_str(), &d->db, openFlags, NULL);
2147 std::string sql = "SELECT rowid FROM positioned WHERE name LIKE '%" + term
2148 + "%' AND ((type >= 1 AND type <= 3) OR ((type >= 9 AND type <= 11))) ";
2149 sqlite3_prepare_v2(d->db, sql.c_str(), sql.length(), &d->query, NULL);
2154 NavDataCache::ThreadedGUISearch::~ThreadedGUISearch()
2157 SGGuard<SGMutex> g(d->lock);
2162 sqlite3_finalize(d->query);
2163 sqlite3_close_v2(d->db);
2166 PositionedIDVec NavDataCache::ThreadedGUISearch::results() const
2170 SGGuard<SGMutex> g(d->lock);
2176 bool NavDataCache::ThreadedGUISearch::isComplete() const
2178 SGGuard<SGMutex> g(d->lock);
2179 return d->isComplete;
2182 } // of namespace flightgear