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>
49 #include <Main/globals.hxx>
50 #include "markerbeacon.hxx"
51 #include "navrecord.hxx"
52 #include <Airports/simple.hxx>
53 #include <Airports/runways.hxx>
54 #include <ATC/CommStation.hxx>
56 #include <Navaids/fixlist.hxx>
57 #include <Navaids/navdb.hxx>
58 #include "PositionedOctree.hxx"
59 #include <Airports/apt_loader.hxx>
60 #include <Navaids/airways.hxx>
64 #define SG_NAVCACHE SG_GENERAL
65 //#define LAZY_OCTREE_UPDATES 1
69 const int SCHEMA_VERSION = 3;
71 // bind a std::string to a sqlite statement. The std::string must live the
72 // entire duration of the statement execution - do not pass a temporary
73 // std::string, or the compiler may delete it, freeing the C-string storage,
74 // and causing subtle memory corruption bugs!
75 void sqlite_bind_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
77 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_STATIC);
80 // variant of the above, which does not care about the lifetime of the
82 void sqlite_bind_temp_stdstring(sqlite3_stmt* stmt, int value, const std::string& s)
84 sqlite3_bind_text(stmt, value, s.c_str(), s.length(), SQLITE_TRANSIENT);
87 typedef sqlite3_stmt* sqlite3_stmt_ptr;
89 void f_distanceCartSqrFunction(sqlite3_context* ctx, int argc, sqlite3_value* argv[])
95 SGVec3d posA(sqlite3_value_double(argv[0]),
96 sqlite3_value_double(argv[1]),
97 sqlite3_value_double(argv[2]));
99 SGVec3d posB(sqlite3_value_double(argv[3]),
100 sqlite3_value_double(argv[4]),
101 sqlite3_value_double(argv[5]));
102 sqlite3_result_double(ctx, distSqr(posA, posB));
106 static string cleanRunwayNo(const string& aRwyNo)
108 if (aRwyNo[0] == 'x') {
109 return string(); // no ident for taxiways
112 string result(aRwyNo);
113 // canonicalise runway ident
114 if ((aRwyNo.size() == 1) || !isdigit(aRwyNo[1])) {
115 result = "0" + aRwyNo;
118 // trim off trailing garbage
119 if (result.size() > 2) {
120 char suffix = toupper(result[2]);
122 result = result.substr(0, 2);
129 } // anonymous namespace
134 typedef std::map<PositionedID, FGPositionedRef> PositionedCache;
136 class AirportTower : public FGPositioned
139 AirportTower(PositionedID& guid, PositionedID airport,
140 const string& ident, const SGGeod& pos) :
141 FGPositioned(guid, FGPositioned::TOWER, ident, pos)
146 class NavDataCache::NavDataCachePrivate
149 NavDataCachePrivate(const SGPath& p, NavDataCache* o) :
158 ~NavDataCachePrivate()
160 BOOST_FOREACH(sqlite3_stmt_ptr stmt, prepared) {
161 sqlite3_finalize(stmt);
170 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache at:" << path);
171 sqlite3_open_v2(path.c_str(), &db,
172 SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL);
175 sqlite3_stmt_ptr checkTables =
176 prepare("SELECT count(*) FROM sqlite_master WHERE name='properties'");
178 sqlite3_create_function(db, "distanceCartSqr", 6, SQLITE_ANY, NULL,
179 f_distanceCartSqrFunction, NULL, NULL);
181 execSelect(checkTables);
182 bool didCreate = false;
183 if (sqlite3_column_int(checkTables, 0) == 0) {
184 SG_LOG(SG_NAVCACHE, SG_INFO, "will create tables");
189 readPropertyQuery = prepare("SELECT value FROM properties WHERE key=?");
190 writePropertyQuery = prepare("INSERT OR REPLACE INTO properties "
191 "(key, value) VALUES (?,?)");
194 writeIntProperty("schema-version", SCHEMA_VERSION);
196 int schemaVersion = outer->readIntProperty("schema-version");
197 if (schemaVersion != SCHEMA_VERSION) {
198 SG_LOG(SG_NAVCACHE, SG_INFO, "Navcache schema mismatch, will rebuild");
199 throw sg_exception("Navcache schema has changed");
206 void checkCacheFile()
208 SG_LOG(SG_NAVCACHE, SG_INFO, "running DB integrity check");
212 sqlite3_stmt_ptr stmt = prepare("PRAGMA integrity_check(1)");
213 if (!execSelect(stmt)) {
214 throw sg_exception("DB integrity check failed to run");
217 string v = (char*) sqlite3_column_text(stmt, 0);
219 throw sg_exception("DB integrity check returned:" + v);
222 SG_LOG(SG_NAVCACHE, SG_INFO, "NavDataCache integrity check took:" << st.elapsedMSec());
226 void callSqlite(int result, const string& sql)
228 if (result == SQLITE_OK)
232 if (result == SQLITE_MISUSE) {
233 errMsg = "Sqlite API abuse";
234 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
236 errMsg = sqlite3_errmsg(db);
237 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg << " running:\n\t" << sql);
240 throw sg_exception("Sqlite error:" + errMsg, sql);
243 void runSQL(const string& sql)
245 sqlite3_stmt_ptr stmt;
246 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
250 } catch (sg_exception& e) {
251 sqlite3_finalize(stmt);
255 sqlite3_finalize(stmt);
258 sqlite3_stmt_ptr prepare(const string& sql)
260 sqlite3_stmt_ptr stmt;
261 callSqlite(sqlite3_prepare_v2(db, sql.c_str(), sql.length(), &stmt, NULL), sql);
262 prepared.push_back(stmt);
266 void finalize(sqlite3_stmt_ptr s)
268 StmtVec::iterator it = std::find(prepared.begin(), prepared.end(), s);
269 if (it == prepared.end()) {
270 throw sg_exception("Finalising statement that was not prepared");
277 void reset(sqlite3_stmt_ptr stmt)
280 if (sqlite3_reset(stmt) != SQLITE_OK) {
281 string errMsg = sqlite3_errmsg(db);
282 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error resetting:" << errMsg);
283 throw sg_exception("Sqlite error resetting:" + errMsg, sqlite3_sql(stmt));
287 bool execSelect(sqlite3_stmt_ptr stmt)
289 return stepSelect(stmt);
292 bool stepSelect(sqlite3_stmt_ptr stmt)
294 int result = sqlite3_step(stmt);
295 if (result == SQLITE_ROW) {
296 return true; // at least one result row
299 if (result == SQLITE_DONE) {
300 return false; // no result rows
304 if (result == SQLITE_MISUSE) {
305 errMsg = "Sqlite API abuse";
306 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite API abuse");
308 errMsg = sqlite3_errmsg(db);
309 SG_LOG(SG_NAVCACHE, SG_ALERT, "Sqlite error:" << errMsg
310 << " while running:\n\t" << sqlite3_sql(stmt));
313 throw sg_exception("Sqlite error:" + errMsg, sqlite3_sql(stmt));
316 void execSelect1(sqlite3_stmt_ptr stmt)
318 if (!execSelect(stmt)) {
319 SG_LOG(SG_NAVCACHE, SG_WARN, "empty SELECT running:\n\t" << sqlite3_sql(stmt));
320 throw sg_exception("no results returned for select", sqlite3_sql(stmt));
324 sqlite3_int64 execInsert(sqlite3_stmt_ptr stmt)
327 return sqlite3_last_insert_rowid(db);
330 void execUpdate(sqlite3_stmt_ptr stmt)
337 runSQL("CREATE TABLE properties ("
342 runSQL("CREATE TABLE stat_cache ("
343 "path VARCHAR unique,"
347 runSQL("CREATE TABLE positioned ("
349 "ident VARCHAR collate nocase,"
350 "name VARCHAR collate nocase,"
361 runSQL("CREATE INDEX pos_octree ON positioned(octree_node)");
362 runSQL("CREATE INDEX pos_ident ON positioned(ident collate nocase)");
363 runSQL("CREATE INDEX pos_name ON positioned(name collate nocase)");
364 // allow efficient querying of 'all ATIS at this airport' or
365 // 'all towers at this airport'
366 runSQL("CREATE INDEX pos_apt_type ON positioned(airport, type)");
368 runSQL("CREATE TABLE airport ("
373 runSQL("CREATE TABLE comm ("
379 runSQL("CREATE INDEX comm_freq ON comm(freq_khz)");
381 runSQL("CREATE TABLE runway ("
386 "displaced_threshold FLOAT,"
393 runSQL("CREATE TABLE navaid ("
402 runSQL("CREATE INDEX navaid_freq ON navaid(freq)");
404 runSQL("CREATE TABLE octree (children INT)");
406 runSQL("CREATE TABLE airway ("
407 "ident VARCHAR collate nocase,"
408 "network INT" // high-level or low-level
411 runSQL("CREATE INDEX airway_ident ON airway(ident)");
413 runSQL("CREATE TABLE airway_edge ("
420 runSQL("CREATE INDEX airway_edge_from ON airway_edge(a)");
423 void prepareQueries()
425 clearProperty = prepare("DELETE FROM properties WHERE key=?1");
426 writePropertyMulti = prepare("INSERT INTO properties (key, value) VALUES(?1,?2)");
428 #define POSITIONED_COLS "rowid, type, ident, name, airport, lon, lat, elev_m, octree_node"
429 #define AND_TYPED "AND type>=?2 AND type <=?3"
430 statCacheCheck = prepare("SELECT stamp FROM stat_cache WHERE path=?");
431 stampFileCache = prepare("INSERT OR REPLACE INTO stat_cache "
432 "(path, stamp) VALUES (?,?)");
434 loadPositioned = prepare("SELECT " POSITIONED_COLS " FROM positioned WHERE rowid=?");
435 loadAirportStmt = prepare("SELECT has_metar FROM airport WHERE rowid=?");
436 loadNavaid = prepare("SELECT range_nm, freq, multiuse, runway, colocated FROM navaid WHERE rowid=?");
437 loadCommStation = prepare("SELECT freq_khz, range_nm FROM comm WHERE rowid=?");
438 loadRunwayStmt = prepare("SELECT heading, length_ft, width_m, surface, displaced_threshold,"
439 "stopway, reciprocal, ils FROM runway WHERE rowid=?1");
441 getAirportItems = prepare("SELECT rowid FROM positioned WHERE airport=?1 " AND_TYPED);
444 setAirportMetar = prepare("UPDATE airport SET has_metar=?2 WHERE rowid="
445 "(SELECT rowid FROM positioned WHERE ident=?1 AND type>=?3 AND type <=?4)");
446 sqlite3_bind_int(setAirportMetar, 3, FGPositioned::AIRPORT);
447 sqlite3_bind_int(setAirportMetar, 4, FGPositioned::SEAPORT);
449 setRunwayReciprocal = prepare("UPDATE runway SET reciprocal=?2 WHERE rowid=?1");
450 setRunwayILS = prepare("UPDATE runway SET ils=?2 WHERE rowid=?1");
451 updateRunwayThreshold = prepare("UPDATE runway SET heading=?2, displaced_threshold=?3, stopway=?4 WHERE rowid=?1");
453 insertPositionedQuery = prepare("INSERT INTO positioned "
454 "(type, ident, name, airport, lon, lat, elev_m, octree_node, "
455 "cart_x, cart_y, cart_z)"
456 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8, ?9, ?10, ?11)");
458 setAirportPos = prepare("UPDATE positioned SET lon=?2, lat=?3, elev_m=?4, octree_node=?5, "
459 "cart_x=?6, cart_y=?7, cart_z=?8 WHERE rowid=?1");
460 insertAirport = prepare("INSERT INTO airport (rowid, has_metar) VALUES (?, ?)");
461 insertNavaid = prepare("INSERT INTO navaid (rowid, freq, range_nm, multiuse, runway, colocated)"
462 " VALUES (?1, ?2, ?3, ?4, ?5, ?6)");
463 updateILS = prepare("UPDATE navaid SET multiuse=?2 WHERE rowid=?1");
465 insertCommStation = prepare("INSERT INTO comm (rowid, freq_khz, range_nm)"
466 " VALUES (?, ?, ?)");
467 insertRunway = prepare("INSERT INTO runway "
468 "(rowid, heading, length_ft, width_m, surface, displaced_threshold, stopway, reciprocal)"
469 " VALUES (?1, ?2, ?3, ?4, ?5, ?6, ?7, ?8)");
470 runwayLengthFtQuery = prepare("SELECT length_ft FROM runway WHERE rowid=?1");
473 findClosestWithIdent = prepare("SELECT rowid FROM positioned WHERE ident=?1 "
474 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
476 findCommByFreq = prepare("SELECT positioned.rowid FROM positioned, comm WHERE "
477 "positioned.rowid=comm.rowid AND freq_khz=?1 "
478 AND_TYPED " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
480 findNavsByFreq = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
481 "positioned.rowid=navaid.rowid "
482 "AND navaid.freq=?1 " AND_TYPED
483 " ORDER BY distanceCartSqr(cart_x, cart_y, cart_z, ?4, ?5, ?6)");
485 findNavsByFreqNoPos = prepare("SELECT positioned.rowid FROM positioned, navaid WHERE "
486 "positioned.rowid=navaid.rowid AND freq=?1 " AND_TYPED);
488 // for an octree branch, return the child octree nodes which exist,
489 // described as a bit-mask
490 getOctreeChildren = prepare("SELECT children FROM octree WHERE rowid=?1");
492 #ifdef LAZY_OCTREE_UPDATES
493 updateOctreeChildren = prepare("UPDATE octree SET children=?2 WHERE rowid=?1");
495 // mask the new child value into the existing one
496 updateOctreeChildren = prepare("UPDATE octree SET children=(?2 | children) WHERE rowid=?1");
499 // define a new octree node (with no children)
500 insertOctree = prepare("INSERT INTO octree (rowid, children) VALUES (?1, 0)");
502 getOctreeLeafChildren = prepare("SELECT rowid, type FROM positioned WHERE octree_node=?1");
504 searchAirports = prepare("SELECT ident, name FROM positioned WHERE (name LIKE ?1 OR ident LIKE ?1) " AND_TYPED);
505 sqlite3_bind_int(searchAirports, 2, FGPositioned::AIRPORT);
506 sqlite3_bind_int(searchAirports, 3, FGPositioned::SEAPORT);
508 getAirportItemByIdent = prepare("SELECT rowid FROM positioned WHERE airport=?1 AND ident=?2 AND type=?3");
510 findAirportRunway = prepare("SELECT airport, rowid FROM positioned WHERE ident=?2 AND type=?3 AND airport="
511 "(SELECT rowid FROM positioned WHERE type=?4 AND ident=?1)");
512 sqlite3_bind_int(findAirportRunway, 3, FGPositioned::RUNWAY);
513 sqlite3_bind_int(findAirportRunway, 4, FGPositioned::AIRPORT);
515 // three-way join to get the navaid ident and runway ident in a single select.
516 // we're joining positioned to itself by the navaid runway, with the complication
517 // that we need to join the navaids table to get the runway ID.
518 // we also need to filter by type to excluse glideslope (GS) matches
519 findILS = prepare("SELECT nav.rowid FROM positioned AS nav, positioned AS rwy, navaid WHERE "
520 "nav.ident=?1 AND nav.airport=?2 AND rwy.ident=?3 "
521 "AND rwy.rowid = navaid.runway AND navaid.rowid=nav.rowid "
522 "AND (nav.type=?4 OR nav.type=?5)");
524 sqlite3_bind_int(findILS, 4, FGPositioned::ILS);
525 sqlite3_bind_int(findILS, 5, FGPositioned::LOC);
527 findAirway = prepare("SELECT rowid FROM airway WHERE network=?1 AND ident=?2");
528 insertAirway = prepare("INSERT INTO airway (ident, network) "
531 insertAirwayEdge = prepare("INSERT INTO airway_edge (network, airway, a, b) "
532 "VALUES (?1, ?2, ?3, ?4)");
534 isPosInAirway = prepare("SELECT rowid FROM airway_edge WHERE network=?1 AND a=?2");
536 airwayEdgesFrom = prepare("SELECT airway, b FROM airway_edge WHERE network=?1 AND a=?2");
539 void writeIntProperty(const string& key, int value)
541 sqlite_bind_stdstring(writePropertyQuery, 1, key);
542 sqlite3_bind_int(writePropertyQuery, 2, value);
543 execSelect(writePropertyQuery);
547 FGPositioned* loadFromStmt(sqlite3_stmt_ptr query);
549 FGAirport* loadAirport(sqlite_int64 rowId,
550 FGPositioned::Type ty,
551 const string& id, const string& name, const SGGeod& pos)
553 reset(loadAirportStmt);
554 sqlite3_bind_int64(loadAirportStmt, 1, rowId);
555 execSelect1(loadAirportStmt);
556 bool hasMetar = sqlite3_column_int(loadAirportStmt, 0);
557 return new FGAirport(rowId, id, pos, name, hasMetar, ty);
560 FGRunwayBase* loadRunway(sqlite3_int64 rowId, FGPositioned::Type ty,
561 const string& id, const SGGeod& pos, PositionedID apt)
563 reset(loadRunwayStmt);
564 sqlite3_bind_int(loadRunwayStmt, 1, rowId);
565 execSelect1(loadRunwayStmt);
567 double heading = sqlite3_column_double(loadRunwayStmt, 0);
568 double lengthM = sqlite3_column_int(loadRunwayStmt, 1);
569 double widthM = sqlite3_column_double(loadRunwayStmt, 2);
570 int surface = sqlite3_column_int(loadRunwayStmt, 3);
572 if (ty == FGPositioned::TAXIWAY) {
573 return new FGTaxiway(rowId, id, pos, heading, lengthM, widthM, surface);
575 double displacedThreshold = sqlite3_column_double(loadRunwayStmt, 4);
576 double stopway = sqlite3_column_double(loadRunwayStmt, 5);
577 PositionedID reciprocal = sqlite3_column_int64(loadRunwayStmt, 6);
578 PositionedID ils = sqlite3_column_int64(loadRunwayStmt, 7);
579 FGRunway* r = new FGRunway(rowId, apt, id, pos, heading, lengthM, widthM,
580 displacedThreshold, stopway, surface, false);
582 if (reciprocal > 0) {
583 r->setReciprocalRunway(reciprocal);
594 CommStation* loadComm(sqlite3_int64 rowId, FGPositioned::Type ty,
595 const string& id, const string& name,
597 PositionedID airport)
599 reset(loadCommStation);
600 sqlite3_bind_int64(loadCommStation, 1, rowId);
601 execSelect1(loadCommStation);
603 int range = sqlite3_column_int(loadCommStation, 0);
604 int freqKhz = sqlite3_column_int(loadCommStation, 1);
606 CommStation* c = new CommStation(rowId, id, ty, pos, freqKhz, range);
607 c->setAirport(airport);
611 FGPositioned* loadNav(sqlite3_int64 rowId,
612 FGPositioned::Type ty, const string& id,
613 const string& name, const SGGeod& pos)
616 sqlite3_bind_int64(loadNavaid, 1, rowId);
617 execSelect1(loadNavaid);
619 PositionedID runway = sqlite3_column_int64(loadNavaid, 3);
620 // marker beacons are light-weight
621 if ((ty == FGPositioned::OM) || (ty == FGPositioned::IM) ||
622 (ty == FGPositioned::MM))
624 return new FGMarkerBeaconRecord(rowId, ty, runway, pos);
627 int rangeNm = sqlite3_column_int(loadNavaid, 0),
628 freq = sqlite3_column_int(loadNavaid, 1);
629 double mulituse = sqlite3_column_double(loadNavaid, 2);
630 //sqlite3_int64 colocated = sqlite3_column_int64(loadNavaid, 4);
632 return new FGNavRecord(rowId, ty, id, name, pos, freq, rangeNm, mulituse, runway);
635 PositionedID insertPositioned(FGPositioned::Type ty, const string& ident,
636 const string& name, const SGGeod& pos, PositionedID apt,
639 SGVec3d cartPos(SGVec3d::fromGeod(pos));
641 reset(insertPositionedQuery);
642 sqlite3_bind_int(insertPositionedQuery, 1, ty);
643 sqlite_bind_stdstring(insertPositionedQuery, 2, ident);
644 sqlite_bind_stdstring(insertPositionedQuery, 3, name);
645 sqlite3_bind_int64(insertPositionedQuery, 4, apt);
646 sqlite3_bind_double(insertPositionedQuery, 5, pos.getLongitudeDeg());
647 sqlite3_bind_double(insertPositionedQuery, 6, pos.getLatitudeDeg());
648 sqlite3_bind_double(insertPositionedQuery, 7, pos.getElevationM());
651 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
652 assert(intersects(octreeLeaf->bbox(), cartPos));
653 sqlite3_bind_int64(insertPositionedQuery, 8, octreeLeaf->guid());
655 sqlite3_bind_null(insertPositionedQuery, 8);
658 sqlite3_bind_double(insertPositionedQuery, 9, cartPos.x());
659 sqlite3_bind_double(insertPositionedQuery, 10, cartPos.y());
660 sqlite3_bind_double(insertPositionedQuery, 11, cartPos.z());
662 PositionedID r = execInsert(insertPositionedQuery);
666 FGPositioned::List findAllByString(const string& s, const string& column,
667 FGPositioned::Filter* filter, bool exact)
670 if (!exact) query += "*";
672 // build up SQL query text
673 string matchTerm = exact ? "=?1" : " LIKE ?1";
674 string sql = "SELECT rowid FROM positioned WHERE " + column + matchTerm;
679 // find or prepare a suitable statement frrm the SQL
680 sqlite3_stmt_ptr stmt = findByStringDict[sql];
683 findByStringDict[sql] = stmt;
687 sqlite_bind_stdstring(stmt, 1, query);
689 sqlite3_bind_int(stmt, 2, filter->minType());
690 sqlite3_bind_int(stmt, 3, filter->maxType());
693 FGPositioned::List result;
694 // run the prepared SQL
695 while (stepSelect(stmt))
697 FGPositioned* pos = outer->loadById(sqlite3_column_int64(stmt, 0));
698 if (filter && !filter->pass(pos)) {
702 result.push_back(pos);
708 PositionedIDVec selectIds(sqlite3_stmt_ptr query)
710 PositionedIDVec result;
711 while (stepSelect(query)) {
712 result.push_back(sqlite3_column_int64(query, 0));
717 double runwayLengthFt(PositionedID rwy)
719 reset(runwayLengthFtQuery);
720 sqlite3_bind_int64(runwayLengthFtQuery, 1, rwy);
721 execSelect1(runwayLengthFtQuery);
722 return sqlite3_column_double(runwayLengthFtQuery, 0);
725 void flushDeferredOctreeUpdates()
727 BOOST_FOREACH(Octree::Branch* nd, deferredOctreeUpdates) {
728 reset(updateOctreeChildren);
729 sqlite3_bind_int64(updateOctreeChildren, 1, nd->guid());
730 sqlite3_bind_int(updateOctreeChildren, 2, nd->childMask());
731 execUpdate(updateOctreeChildren);
734 deferredOctreeUpdates.clear();
741 /// the actual cache of ID -> instances. This holds an owning reference,
742 /// so once items are in the cache they will never be deleted until
743 /// the cache drops its reference
744 PositionedCache cache;
745 unsigned int cacheHits, cacheMisses;
747 SGPath aptDatPath, metarDatPath, navDatPath, fixDatPath,
748 carrierDatPath, airwayDatPath;
750 sqlite3_stmt_ptr readPropertyQuery, writePropertyQuery,
751 stampFileCache, statCacheCheck,
752 loadAirportStmt, loadCommStation, loadPositioned, loadNavaid,
754 sqlite3_stmt_ptr writePropertyMulti, clearProperty;
756 sqlite3_stmt_ptr insertPositionedQuery, insertAirport, insertTower, insertRunway,
757 insertCommStation, insertNavaid;
758 sqlite3_stmt_ptr setAirportMetar, setRunwayReciprocal, setRunwayILS,
759 setAirportPos, updateRunwayThreshold, updateILS;
761 sqlite3_stmt_ptr findClosestWithIdent;
762 // octree (spatial index) related queries
763 sqlite3_stmt_ptr getOctreeChildren, insertOctree, updateOctreeChildren,
764 getOctreeLeafChildren;
766 sqlite3_stmt_ptr searchAirports;
767 sqlite3_stmt_ptr findCommByFreq, findNavsByFreq,
769 sqlite3_stmt_ptr getAirportItems, getAirportItemByIdent;
770 sqlite3_stmt_ptr findAirportRunway,
773 sqlite3_stmt_ptr runwayLengthFtQuery;
776 sqlite3_stmt_ptr findAirway, insertAirwayEdge, isPosInAirway, airwayEdgesFrom,
779 // since there's many permutations of ident/name queries, we create
780 // them programtically, but cache the exact query by its raw SQL once
782 std::map<string, sqlite3_stmt_ptr> findByStringDict;
784 typedef std::vector<sqlite3_stmt_ptr> StmtVec;
787 std::set<Octree::Branch*> deferredOctreeUpdates;
790 //////////////////////////////////////////////////////////////////////
792 FGPositioned* NavDataCache::NavDataCachePrivate::loadFromStmt(sqlite3_stmt_ptr query)
795 sqlite3_int64 rowid = sqlite3_column_int64(query, 0);
796 FGPositioned::Type ty = (FGPositioned::Type) sqlite3_column_int(query, 1);
798 string ident = (char*) sqlite3_column_text(query, 2);
799 string name = (char*) sqlite3_column_text(query, 3);
800 sqlite3_int64 aptId = sqlite3_column_int64(query, 4);
801 double lon = sqlite3_column_double(query, 5);
802 double lat = sqlite3_column_double(query, 6);
803 double elev = sqlite3_column_double(query, 7);
804 SGGeod pos = SGGeod::fromDegM(lon, lat, elev);
807 case FGPositioned::AIRPORT:
808 case FGPositioned::SEAPORT:
809 case FGPositioned::HELIPORT:
810 return loadAirport(rowid, ty, ident, name, pos);
812 case FGPositioned::TOWER:
813 return new AirportTower(rowid, aptId, ident, pos);
815 case FGPositioned::RUNWAY:
816 case FGPositioned::TAXIWAY:
817 return loadRunway(rowid, ty, ident, pos, aptId);
819 case FGPositioned::LOC:
820 case FGPositioned::VOR:
821 case FGPositioned::GS:
822 case FGPositioned::ILS:
823 case FGPositioned::NDB:
824 case FGPositioned::OM:
825 case FGPositioned::MM:
826 case FGPositioned::IM:
827 case FGPositioned::DME:
828 case FGPositioned::TACAN:
829 case FGPositioned::MOBILE_TACAN:
832 FGAirport* apt = (FGAirport*) outer->loadById(aptId);
833 if (apt->validateILSData()) {
834 SG_LOG(SG_NAVCACHE, SG_INFO, "re-loaded ILS data for " << apt->ident());
835 // queried data above is probably invalid, force us to go around again
836 // (the next time through, validateILSData will return false)
837 return outer->loadById(rowid);
841 return loadNav(rowid, ty, ident, name, pos);
844 case FGPositioned::FIX:
845 return new FGFix(rowid, ident, pos);
847 case FGPositioned::WAYPOINT:
849 FGPositioned* wpt = new FGPositioned(rowid, FGPositioned::WAYPOINT, ident, pos);
853 case FGPositioned::FREQ_GROUND:
854 case FGPositioned::FREQ_TOWER:
855 case FGPositioned::FREQ_ATIS:
856 case FGPositioned::FREQ_AWOS:
857 case FGPositioned::FREQ_APP_DEP:
858 case FGPositioned::FREQ_ENROUTE:
859 case FGPositioned::FREQ_CLEARANCE:
860 case FGPositioned::FREQ_UNICOM:
861 return loadComm(rowid, ty, ident, name, pos, aptId);
869 static NavDataCache* static_instance = NULL;
871 NavDataCache::NavDataCache()
873 const int MAX_TRIES = 3;
874 SGPath homePath(globals->get_fg_home());
875 homePath.append("navdata.cache");
877 for (int t=0; t < MAX_TRIES; ++t) {
879 d.reset(new NavDataCachePrivate(homePath, this));
881 //d->checkCacheFile();
882 // reached this point with no exception, success
884 } catch (sg_exception& e) {
885 SG_LOG(SG_NAVCACHE, SG_WARN, "NavCache: init failed:" << e.what()
886 << " (attempt " << t << ")");
892 double RADIUS_EARTH_M = 7000 * 1000.0; // 7000km is plenty
893 SGVec3d earthExtent(RADIUS_EARTH_M, RADIUS_EARTH_M, RADIUS_EARTH_M);
894 Octree::global_spatialOctree =
895 new Octree::Branch(SGBox<double>(-earthExtent, earthExtent), 1);
897 d->aptDatPath = SGPath(globals->get_fg_root());
898 d->aptDatPath.append("Airports/apt.dat.gz");
900 d->metarDatPath = SGPath(globals->get_fg_root());
901 d->metarDatPath.append("Airports/metar.dat.gz");
903 d->navDatPath = SGPath(globals->get_fg_root());
904 d->navDatPath.append("Navaids/nav.dat.gz");
906 d->fixDatPath = SGPath(globals->get_fg_root());
907 d->fixDatPath.append("Navaids/fix.dat.gz");
909 d->carrierDatPath = SGPath(globals->get_fg_root());
910 d->carrierDatPath.append("Navaids/carrier_nav.dat.gz");
912 d->airwayDatPath = SGPath(globals->get_fg_root());
913 d->airwayDatPath.append("Navaids/awy.dat.gz");
916 NavDataCache::~NavDataCache()
918 assert(static_instance == this);
919 static_instance = NULL;
920 SG_LOG(SG_NAVCACHE, SG_INFO, "closing the navcache");
924 NavDataCache* NavDataCache::instance()
926 if (!static_instance) {
927 static_instance = new NavDataCache;
930 return static_instance;
933 bool NavDataCache::isRebuildRequired()
935 if (isCachedFileModified(d->aptDatPath) ||
936 isCachedFileModified(d->metarDatPath) ||
937 isCachedFileModified(d->navDatPath) ||
938 isCachedFileModified(d->fixDatPath) ||
939 isCachedFileModified(d->airwayDatPath))
941 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: rebuild required");
945 SG_LOG(SG_NAVCACHE, SG_INFO, "NavCache: no rebuild required");
949 void NavDataCache::rebuild()
953 d->runSQL("DELETE FROM positioned");
954 d->runSQL("DELETE FROM airport");
955 d->runSQL("DELETE FROM runway");
956 d->runSQL("DELETE FROM navaid");
957 d->runSQL("DELETE FROM comm");
958 d->runSQL("DELETE FROM octree");
959 d->runSQL("DELETE FROM airway");
960 d->runSQL("DELETE FROM airway_edge");
962 // initialise the root octree node
963 d->runSQL("INSERT INTO octree (rowid, children) VALUES (1, 0)");
968 airportDBLoad(d->aptDatPath);
969 SG_LOG(SG_NAVCACHE, SG_INFO, "apt.dat load took:" << st.elapsedMSec());
971 metarDataLoad(d->metarDatPath);
972 stampCacheFile(d->aptDatPath);
973 stampCacheFile(d->metarDatPath);
976 loadFixes(d->fixDatPath);
977 stampCacheFile(d->fixDatPath);
978 SG_LOG(SG_NAVCACHE, SG_INFO, "fix.dat load took:" << st.elapsedMSec());
981 navDBInit(d->navDatPath);
982 stampCacheFile(d->navDatPath);
983 SG_LOG(SG_NAVCACHE, SG_INFO, "nav.dat load took:" << st.elapsedMSec());
985 loadCarrierNav(d->carrierDatPath);
986 stampCacheFile(d->carrierDatPath);
989 Airway::load(d->airwayDatPath);
990 stampCacheFile(d->airwayDatPath);
991 SG_LOG(SG_NAVCACHE, SG_INFO, "awy.dat load took:" << st.elapsedMSec());
993 d->flushDeferredOctreeUpdates();
996 } catch (sg_exception& e) {
997 SG_LOG(SG_NAVCACHE, SG_ALERT, "caught exception rebuilding navCache:" << e.what());
998 // abandon the DB transation completely
999 d->runSQL("ROLLBACK");
1003 int NavDataCache::readIntProperty(const string& key)
1005 d->reset(d->readPropertyQuery);
1006 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1008 if (d->execSelect(d->readPropertyQuery)) {
1009 return sqlite3_column_int(d->readPropertyQuery, 0);
1011 SG_LOG(SG_NAVCACHE, SG_WARN, "readIntProperty: unknown:" << key);
1012 return 0; // no such property
1016 double NavDataCache::readDoubleProperty(const string& key)
1018 d->reset(d->readPropertyQuery);
1019 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1020 if (d->execSelect(d->readPropertyQuery)) {
1021 return sqlite3_column_double(d->readPropertyQuery, 0);
1023 SG_LOG(SG_NAVCACHE, SG_WARN, "readDoubleProperty: unknown:" << key);
1024 return 0.0; // no such property
1028 string NavDataCache::readStringProperty(const string& key)
1030 d->reset(d->readPropertyQuery);
1031 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1032 if (d->execSelect(d->readPropertyQuery)) {
1033 return (char*) sqlite3_column_text(d->readPropertyQuery, 0);
1035 SG_LOG(SG_NAVCACHE, SG_WARN, "readStringProperty: unknown:" << key);
1036 return string(); // no such property
1040 void NavDataCache::writeIntProperty(const string& key, int value)
1042 d->writeIntProperty(key, value);
1045 void NavDataCache::writeStringProperty(const string& key, const string& value)
1047 d->reset(d->writePropertyQuery);
1048 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1049 sqlite_bind_stdstring(d->writePropertyQuery, 2, value);
1050 d->execSelect(d->writePropertyQuery);
1053 void NavDataCache::writeDoubleProperty(const string& key, const double& value)
1055 d->reset(d->writePropertyQuery);
1056 sqlite_bind_stdstring(d->writePropertyQuery, 1, key);
1057 sqlite3_bind_double(d->writePropertyQuery, 2, value);
1058 d->execSelect(d->writePropertyQuery);
1061 string_list NavDataCache::readStringListProperty(const string& key)
1063 d->reset(d->readPropertyQuery);
1064 sqlite_bind_stdstring(d->readPropertyQuery, 1, key);
1066 while (d->stepSelect(d->readPropertyQuery)) {
1067 result.push_back((char*) sqlite3_column_text(d->readPropertyQuery, 0));
1073 void NavDataCache::writeStringListProperty(const string& key, const string_list& values)
1075 d->reset(d->clearProperty);
1076 sqlite_bind_stdstring(d->clearProperty, 1, key);
1077 d->execUpdate(d->clearProperty);
1079 BOOST_FOREACH(string value, values) {
1080 d->reset(d->writePropertyMulti);
1081 sqlite_bind_stdstring(d->writePropertyMulti, 1, key);
1082 sqlite_bind_stdstring(d->writePropertyMulti, 2, value);
1083 d->execInsert(d->writePropertyMulti);
1087 bool NavDataCache::isCachedFileModified(const SGPath& path) const
1089 if (!path.exists()) {
1090 throw sg_io_exception("isCachedFileModified: Missing file:" + path.str());
1093 d->reset(d->statCacheCheck);
1094 sqlite_bind_temp_stdstring(d->statCacheCheck, 1, path.str());
1095 if (d->execSelect(d->statCacheCheck)) {
1096 time_t modtime = sqlite3_column_int64(d->statCacheCheck, 0);
1097 return (modtime != path.modTime());
1103 void NavDataCache::stampCacheFile(const SGPath& path)
1105 d->reset(d->stampFileCache);
1106 sqlite_bind_temp_stdstring(d->stampFileCache, 1, path.str());
1107 sqlite3_bind_int64(d->stampFileCache, 2, path.modTime());
1108 d->execInsert(d->stampFileCache);
1112 FGPositioned* NavDataCache::loadById(PositionedID rowid)
1118 PositionedCache::iterator it = d->cache.find(rowid);
1119 if (it != d->cache.end()) {
1121 return it->second; // cache it
1124 d->reset(d->loadPositioned);
1125 sqlite3_bind_int64(d->loadPositioned, 1, rowid);
1126 FGPositioned* pos = d->loadFromStmt(d->loadPositioned);
1128 d->cache.insert(it, PositionedCache::value_type(rowid, pos));
1134 PositionedID NavDataCache::insertAirport(FGPositioned::Type ty, const string& ident,
1137 // airports have their pos computed based on the avergae runway centres
1138 // so the pos isn't available immediately. Pass a dummy pos and avoid
1139 // doing spatial indexing until later
1140 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, SGGeod(),
1142 false /* spatial index */);
1144 d->reset(d->insertAirport);
1145 sqlite3_bind_int64(d->insertAirport, 1, rowId);
1146 d->execInsert(d->insertAirport);
1151 void NavDataCache::updatePosition(PositionedID item, const SGGeod &pos)
1153 SGVec3d cartPos(SGVec3d::fromGeod(pos));
1155 d->reset(d->setAirportPos);
1156 sqlite3_bind_int(d->setAirportPos, 1, item);
1157 sqlite3_bind_double(d->setAirportPos, 2, pos.getLongitudeDeg());
1158 sqlite3_bind_double(d->setAirportPos, 3, pos.getLatitudeDeg());
1159 sqlite3_bind_double(d->setAirportPos, 4, pos.getElevationM());
1161 Octree::Leaf* octreeLeaf = Octree::global_spatialOctree->findLeafForPos(cartPos);
1162 sqlite3_bind_int64(d->setAirportPos, 5, octreeLeaf->guid());
1164 sqlite3_bind_double(d->setAirportPos, 6, cartPos.x());
1165 sqlite3_bind_double(d->setAirportPos, 7, cartPos.y());
1166 sqlite3_bind_double(d->setAirportPos, 8, cartPos.z());
1169 d->execUpdate(d->setAirportPos);
1172 void NavDataCache::insertTower(PositionedID airportId, const SGGeod& pos)
1174 d->insertPositioned(FGPositioned::TOWER, string(), string(),
1175 pos, airportId, true /* spatial index */);
1179 NavDataCache::insertRunway(FGPositioned::Type ty, const string& ident,
1180 const SGGeod& pos, PositionedID apt,
1181 double heading, double length, double width, double displacedThreshold,
1182 double stopway, int surfaceCode)
1184 // only runways are spatially indexed; don't bother indexing taxiways
1186 bool spatialIndex = (ty == FGPositioned::RUNWAY);
1188 sqlite3_int64 rowId = d->insertPositioned(ty, cleanRunwayNo(ident), "", pos, apt,
1190 d->reset(d->insertRunway);
1191 sqlite3_bind_int64(d->insertRunway, 1, rowId);
1192 sqlite3_bind_double(d->insertRunway, 2, heading);
1193 sqlite3_bind_double(d->insertRunway, 3, length);
1194 sqlite3_bind_double(d->insertRunway, 4, width);
1195 sqlite3_bind_int(d->insertRunway, 5, surfaceCode);
1196 sqlite3_bind_double(d->insertRunway, 6, displacedThreshold);
1197 sqlite3_bind_double(d->insertRunway, 7, stopway);
1199 return d->execInsert(d->insertRunway);
1202 void NavDataCache::setRunwayReciprocal(PositionedID runway, PositionedID recip)
1204 d->reset(d->setRunwayReciprocal);
1205 sqlite3_bind_int64(d->setRunwayReciprocal, 1, runway);
1206 sqlite3_bind_int64(d->setRunwayReciprocal, 2, recip);
1207 d->execUpdate(d->setRunwayReciprocal);
1209 // and the opposite direction too!
1210 d->reset(d->setRunwayReciprocal);
1211 sqlite3_bind_int64(d->setRunwayReciprocal, 2, runway);
1212 sqlite3_bind_int64(d->setRunwayReciprocal, 1, recip);
1213 d->execUpdate(d->setRunwayReciprocal);
1216 void NavDataCache::setRunwayILS(PositionedID runway, PositionedID ils)
1218 d->reset(d->setRunwayILS);
1219 sqlite3_bind_int64(d->setRunwayILS, 1, runway);
1220 sqlite3_bind_int64(d->setRunwayILS, 2, ils);
1221 d->execUpdate(d->setRunwayILS);
1224 void NavDataCache::updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
1225 double aHeading, double aDisplacedThreshold,
1228 // update the runway information
1229 d->reset(d->updateRunwayThreshold);
1230 sqlite3_bind_int64(d->updateRunwayThreshold, 1, runwayID);
1231 sqlite3_bind_double(d->updateRunwayThreshold, 2, aHeading);
1232 sqlite3_bind_double(d->updateRunwayThreshold, 3, aDisplacedThreshold);
1233 sqlite3_bind_double(d->updateRunwayThreshold, 4, aStopway);
1234 d->execUpdate(d->updateRunwayThreshold);
1236 // compute the new runway center, based on the threshold lat/lon and length,
1237 double offsetFt = (0.5 * d->runwayLengthFt(runwayID));
1240 SGGeodesy::direct(aThreshold, aHeading, offsetFt * SG_FEET_TO_METER, newCenter, dummy);
1242 // now update the positional data
1243 updatePosition(runwayID, newCenter);
1247 NavDataCache::insertNavaid(FGPositioned::Type ty, const string& ident,
1248 const string& name, const SGGeod& pos,
1249 int freq, int range, double multiuse,
1250 PositionedID apt, PositionedID runway)
1252 bool spatialIndex = true;
1253 if (ty == FGPositioned::MOBILE_TACAN) {
1254 spatialIndex = false;
1257 sqlite3_int64 rowId = d->insertPositioned(ty, ident, name, pos, apt,
1259 d->reset(d->insertNavaid);
1260 sqlite3_bind_int64(d->insertNavaid, 1, rowId);
1261 sqlite3_bind_int(d->insertNavaid, 2, freq);
1262 sqlite3_bind_int(d->insertNavaid, 3, range);
1263 sqlite3_bind_double(d->insertNavaid, 4, multiuse);
1264 sqlite3_bind_int64(d->insertNavaid, 5, runway);
1265 return d->execInsert(d->insertNavaid);
1268 void NavDataCache::updateILS(PositionedID ils, const SGGeod& newPos, double aHdg)
1270 d->reset(d->updateILS);
1271 sqlite3_bind_int64(d->updateILS, 1, ils);
1272 sqlite3_bind_double(d->updateILS, 2, aHdg);
1273 d->execUpdate(d->updateILS);
1274 updatePosition(ils, newPos);
1277 PositionedID NavDataCache::insertCommStation(FGPositioned::Type ty,
1278 const string& name, const SGGeod& pos, int freq, int range,
1281 sqlite3_int64 rowId = d->insertPositioned(ty, "", name, pos, apt, true);
1282 d->reset(d->insertCommStation);
1283 sqlite3_bind_int64(d->insertCommStation, 1, rowId);
1284 sqlite3_bind_int(d->insertCommStation, 2, freq);
1285 sqlite3_bind_int(d->insertCommStation, 3, range);
1286 return d->execInsert(d->insertCommStation);
1289 PositionedID NavDataCache::insertFix(const std::string& ident, const SGGeod& aPos)
1291 return d->insertPositioned(FGPositioned::FIX, ident, string(), aPos, 0, true);
1294 PositionedID NavDataCache::createUserWaypoint(const std::string& ident, const SGGeod& aPos)
1296 return d->insertPositioned(FGPositioned::WAYPOINT, ident, string(), aPos, 0,
1297 true /* spatial index */);
1300 void NavDataCache::setAirportMetar(const string& icao, bool hasMetar)
1302 d->reset(d->setAirportMetar);
1303 sqlite_bind_stdstring(d->setAirportMetar, 1, icao);
1304 sqlite3_bind_int(d->setAirportMetar, 2, hasMetar);
1305 d->execUpdate(d->setAirportMetar);
1308 FGPositioned::List NavDataCache::findAllWithIdent(const string& s,
1309 FGPositioned::Filter* filter, bool exact)
1311 return d->findAllByString(s, "ident", filter, exact);
1314 FGPositioned::List NavDataCache::findAllWithName(const string& s,
1315 FGPositioned::Filter* filter, bool exact)
1317 return d->findAllByString(s, "name", filter, exact);
1320 FGPositionedRef NavDataCache::findClosestWithIdent(const string& aIdent,
1321 const SGGeod& aPos, FGPositioned::Filter* aFilter)
1323 d->reset(d->findClosestWithIdent);
1324 sqlite_bind_stdstring(d->findClosestWithIdent, 1, aIdent);
1326 sqlite3_bind_int(d->findClosestWithIdent, 2, aFilter->minType());
1327 sqlite3_bind_int(d->findClosestWithIdent, 3, aFilter->maxType());
1328 } else { // full type range
1329 sqlite3_bind_int(d->findClosestWithIdent, 2, FGPositioned::INVALID);
1330 sqlite3_bind_int(d->findClosestWithIdent, 3, FGPositioned::LAST_TYPE);
1333 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1334 sqlite3_bind_double(d->findClosestWithIdent, 4, cartPos.x());
1335 sqlite3_bind_double(d->findClosestWithIdent, 5, cartPos.y());
1336 sqlite3_bind_double(d->findClosestWithIdent, 6, cartPos.z());
1338 while (d->stepSelect(d->findClosestWithIdent)) {
1339 FGPositioned* pos = loadById(sqlite3_column_int64(d->findClosestWithIdent, 0));
1340 if (aFilter && !aFilter->pass(pos)) {
1347 return NULL; // no matches at all
1351 int NavDataCache::getOctreeBranchChildren(int64_t octreeNodeId)
1353 d->reset(d->getOctreeChildren);
1354 sqlite3_bind_int64(d->getOctreeChildren, 1, octreeNodeId);
1355 d->execSelect1(d->getOctreeChildren);
1356 return sqlite3_column_int(d->getOctreeChildren, 0);
1359 void NavDataCache::defineOctreeNode(Octree::Branch* pr, Octree::Node* nd)
1361 d->reset(d->insertOctree);
1362 sqlite3_bind_int64(d->insertOctree, 1, nd->guid());
1363 d->execInsert(d->insertOctree);
1365 #ifdef LAZY_OCTREE_UPDATES
1366 d->deferredOctreeUpdates.insert(pr);
1368 // lowest three bits of node ID are 0..7 index of the child in the parent
1369 int childIndex = nd->guid() & 0x07;
1371 d->reset(d->updateOctreeChildren);
1372 sqlite3_bind_int64(d->updateOctreeChildren, 1, pr->guid());
1373 // mask has bit N set where child N exists
1374 int childMask = 1 << childIndex;
1375 sqlite3_bind_int(d->updateOctreeChildren, 2, childMask);
1376 d->execUpdate(d->updateOctreeChildren);
1381 NavDataCache::getOctreeLeafChildren(int64_t octreeNodeId)
1383 d->reset(d->getOctreeLeafChildren);
1384 sqlite3_bind_int64(d->getOctreeLeafChildren, 1, octreeNodeId);
1386 TypedPositionedVec r;
1387 while (d->stepSelect(d->getOctreeLeafChildren)) {
1388 FGPositioned::Type ty = static_cast<FGPositioned::Type>
1389 (sqlite3_column_int(d->getOctreeLeafChildren, 1));
1390 r.push_back(std::make_pair(ty,
1391 sqlite3_column_int64(d->getOctreeLeafChildren, 0)));
1399 * A special purpose helper (used by FGAirport::searchNamesAndIdents) to
1400 * implement the AirportList dialog. It's unfortunate that it needs to reside
1401 * here, but for now it's least ugly solution.
1403 char** NavDataCache::searchAirportNamesAndIdents(const std::string& aFilter)
1405 d->reset(d->searchAirports);
1406 string s = "%" + aFilter + "%";
1407 sqlite_bind_stdstring(d->searchAirports, 1, s);
1409 unsigned int numMatches = 0, numAllocated = 16;
1410 char** result = (char**) malloc(sizeof(char*) * numAllocated);
1412 while (d->stepSelect(d->searchAirports)) {
1413 if ((numMatches + 1) >= numAllocated) {
1414 numAllocated <<= 1; // double in size!
1415 // reallocate results array
1416 char** nresult = (char**) malloc(sizeof(char*) * numAllocated);
1417 memcpy(nresult, result, sizeof(char*) * numMatches);
1422 // nasty code to avoid excessive string copying and allocations.
1423 // We format results as follows (note whitespace!):
1424 // ' name-of-airport-chars (ident)'
1425 // so the total length is:
1426 // 1 + strlen(name) + 4 + strlen(icao) + 1 + 1 (for the null)
1427 // which gives a grand total of 7 + name-length + icao-length.
1428 // note the ident can be three letters (non-ICAO local strip), four
1429 // (default ICAO) or more (extended format ICAO)
1430 int nameLength = sqlite3_column_bytes(d->searchAirports, 1);
1431 int icaoLength = sqlite3_column_bytes(d->searchAirports, 0);
1432 char* entry = (char*) malloc(7 + nameLength + icaoLength);
1435 memcpy(dst, sqlite3_column_text(d->searchAirports, 1), nameLength);
1441 memcpy(dst, sqlite3_column_text(d->searchAirports, 0), icaoLength);
1446 result[numMatches++] = entry;
1449 result[numMatches] = NULL; // end of list marker
1454 NavDataCache::findCommByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1456 d->reset(d->findCommByFreq);
1457 sqlite3_bind_int(d->findCommByFreq, 1, freqKhz);
1459 sqlite3_bind_int(d->findCommByFreq, 2, aFilter->minType());
1460 sqlite3_bind_int(d->findCommByFreq, 3, aFilter->maxType());
1461 } else { // full type range
1462 sqlite3_bind_int(d->findCommByFreq, 2, FGPositioned::FREQ_GROUND);
1463 sqlite3_bind_int(d->findCommByFreq, 3, FGPositioned::FREQ_UNICOM);
1466 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1467 sqlite3_bind_double(d->findCommByFreq, 4, cartPos.x());
1468 sqlite3_bind_double(d->findCommByFreq, 5, cartPos.y());
1469 sqlite3_bind_double(d->findCommByFreq, 6, cartPos.z());
1471 if (!d->execSelect(d->findCommByFreq)) {
1475 return loadById(sqlite3_column_int64(d->findCommByFreq, 0));
1479 NavDataCache::findNavaidsByFreq(int freqKhz, const SGGeod& aPos, FGPositioned::Filter* aFilter)
1481 d->reset(d->findNavsByFreq);
1482 sqlite3_bind_int(d->findNavsByFreq, 1, freqKhz);
1484 sqlite3_bind_int(d->findNavsByFreq, 2, aFilter->minType());
1485 sqlite3_bind_int(d->findNavsByFreq, 3, aFilter->maxType());
1486 } else { // full type range
1487 sqlite3_bind_int(d->findNavsByFreq, 2, FGPositioned::NDB);
1488 sqlite3_bind_int(d->findNavsByFreq, 3, FGPositioned::GS);
1491 SGVec3d cartPos(SGVec3d::fromGeod(aPos));
1492 sqlite3_bind_double(d->findNavsByFreq, 4, cartPos.x());
1493 sqlite3_bind_double(d->findNavsByFreq, 5, cartPos.y());
1494 sqlite3_bind_double(d->findNavsByFreq, 6, cartPos.z());
1496 return d->selectIds(d->findNavsByFreq);
1500 NavDataCache::findNavaidsByFreq(int freqKhz, FGPositioned::Filter* aFilter)
1502 d->reset(d->findNavsByFreqNoPos);
1503 sqlite3_bind_int(d->findNavsByFreqNoPos, 1, freqKhz);
1505 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, aFilter->minType());
1506 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, aFilter->maxType());
1507 } else { // full type range
1508 sqlite3_bind_int(d->findNavsByFreqNoPos, 2, FGPositioned::NDB);
1509 sqlite3_bind_int(d->findNavsByFreqNoPos, 3, FGPositioned::GS);
1512 return d->selectIds(d->findNavsByFreqNoPos);
1516 NavDataCache::airportItemsOfType(PositionedID apt,FGPositioned::Type ty,
1517 FGPositioned::Type maxTy)
1519 if (maxTy == FGPositioned::INVALID) {
1520 maxTy = ty; // single-type range
1523 d->reset(d->getAirportItems);
1524 sqlite3_bind_int64(d->getAirportItems, 1, apt);
1525 sqlite3_bind_int(d->getAirportItems, 2, ty);
1526 sqlite3_bind_int(d->getAirportItems, 3, maxTy);
1528 return d->selectIds(d->getAirportItems);
1532 NavDataCache::airportItemWithIdent(PositionedID apt, FGPositioned::Type ty,
1533 const std::string& ident)
1535 d->reset(d->getAirportItemByIdent);
1536 sqlite3_bind_int64(d->getAirportItemByIdent, 1, apt);
1537 sqlite_bind_stdstring(d->getAirportItemByIdent, 2, ident);
1538 sqlite3_bind_int(d->getAirportItemByIdent, 3, ty);
1540 if (!d->execSelect(d->getAirportItemByIdent)) {
1544 return sqlite3_column_int64(d->getAirportItemByIdent, 0);
1548 NavDataCache::findAirportRunway(const std::string& aName)
1550 if (aName.empty()) {
1551 return AirportRunwayPair();
1554 string_list parts = simgear::strutils::split(aName);
1555 if (parts.size() < 2) {
1556 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: malformed name:" << aName);
1557 return AirportRunwayPair();
1560 d->reset(d->findAirportRunway);
1561 sqlite_bind_stdstring(d->findAirportRunway, 1, parts[0]);
1562 sqlite_bind_stdstring(d->findAirportRunway, 2, parts[1]);
1563 if (!d->execSelect(d->findAirportRunway)) {
1564 SG_LOG(SG_NAVCACHE, SG_WARN, "findAirportRunway: unknown airport/runway:" << aName);
1565 return AirportRunwayPair();
1568 // success, extract the IDs and continue
1569 return AirportRunwayPair(sqlite3_column_int64(d->findAirportRunway, 0),
1570 sqlite3_column_int64(d->findAirportRunway, 1));
1574 NavDataCache::findILS(PositionedID airport, const string& runway, const string& navIdent)
1576 d->reset(d->findILS);
1577 sqlite_bind_stdstring(d->findILS, 1, navIdent);
1578 sqlite3_bind_int64(d->findILS, 2, airport);
1579 sqlite_bind_stdstring(d->findILS, 3, runway);
1581 if (!d->execSelect(d->findILS)) {
1585 return sqlite3_column_int64(d->findILS, 0);
1588 int NavDataCache::findAirway(int network, const string& aName)
1590 d->reset(d->findAirway);
1591 sqlite3_bind_int(d->findAirway, 1, network);
1592 sqlite_bind_stdstring(d->findAirway, 2, aName);
1593 if (d->execSelect(d->findAirway)) {
1595 return sqlite3_column_int(d->findAirway, 0);
1598 d->reset(d->insertAirway);
1599 sqlite_bind_stdstring(d->insertAirway, 1, aName);
1600 sqlite3_bind_int(d->insertAirway, 2, network);
1601 return d->execInsert(d->insertAirway);
1604 void NavDataCache::insertEdge(int network, int airwayID, PositionedID from, PositionedID to)
1606 // assume all edges are bidirectional for the moment
1607 for (int i=0; i<2; ++i) {
1608 d->reset(d->insertAirwayEdge);
1609 sqlite3_bind_int(d->insertAirwayEdge, 1, network);
1610 sqlite3_bind_int(d->insertAirwayEdge, 2, airwayID);
1611 sqlite3_bind_int64(d->insertAirwayEdge, 3, from);
1612 sqlite3_bind_int64(d->insertAirwayEdge, 4, to);
1613 d->execInsert(d->insertAirwayEdge);
1615 std::swap(from, to);
1619 bool NavDataCache::isInAirwayNetwork(int network, PositionedID pos)
1621 d->reset(d->isPosInAirway);
1622 sqlite3_bind_int(d->isPosInAirway, 1, network);
1623 sqlite3_bind_int64(d->isPosInAirway, 2, pos);
1624 bool ok = d->execSelect(d->isPosInAirway);
1628 AirwayEdgeVec NavDataCache::airwayEdgesFrom(int network, PositionedID pos)
1630 d->reset(d->airwayEdgesFrom);
1631 sqlite3_bind_int(d->airwayEdgesFrom, 1, network);
1632 sqlite3_bind_int64(d->airwayEdgesFrom, 2, pos);
1634 AirwayEdgeVec result;
1635 while (d->stepSelect(d->airwayEdgesFrom)) {
1636 result.push_back(AirwayEdge(
1637 sqlite3_column_int(d->airwayEdgesFrom, 0),
1638 sqlite3_column_int64(d->airwayEdgesFrom, 1)
1644 } // of namespace flightgear