Fix some leaks on reset

[flightgear.git] / src / Navaids / NavDataCache.hxx

diff --git a/src/Navaids/NavDataCache.hxx b/src/Navaids/NavDataCache.hxx
index 01cc20bddbf46da12f8f880f6bb67850271102ec..3a6ef313c85449f3b8277de447e887fd4f5299da 100644 (file)
--- a/src/Navaids/NavDataCache.hxx
+++ b/src/Navaids/NavDataCache.hxx
@@ -85,17 +85,12 @@ public:
   string_list readStringListProperty(const std::string& key);
   void writeStringListProperty(const std::string& key, const string_list& values);
   
-// transaction API wrappers
-  void beginTransaction();
-  void commitTransaction();
-  void abortTransaction();
-  
   /**
    * retrieve an FGPositioned from the cache.
    * This may be trivial if the object is previously loaded, or require actual
    * disk IO.
    */
-  FGPositioned* loadById(PositionedID guid);
+  FGPositionedRef loadById(PositionedID guid);
   
   PositionedID insertAirport(FGPositioned::Type ty, const std::string& ident,
                              const std::string& name);
@@ -107,21 +102,31 @@ public:
   void setRunwayReciprocal(PositionedID runway, PositionedID recip);
   void setRunwayILS(PositionedID runway, PositionedID ils);
   
-  void updateRunwayThreshold(PositionedID runwayID, const SGGeod &aThreshold,
-                    double aHeading, double aDisplacedThreshold,
-                    double aStopway);
-  
   PositionedID insertNavaid(FGPositioned::Type ty, const std::string& ident,
                             const std::string& name, const SGGeod& pos, int freq, int range, double multiuse,
                             PositionedID apt, PositionedID runway);
-  void updateILS(PositionedID ils, const SGGeod& newPos, double aHdg);
+
+  // Assign colocated DME to a navaid
+  void setNavaidColocated(PositionedID navaid, PositionedID colocatedDME);
   
   PositionedID insertCommStation(FGPositioned::Type ty,
                                  const std::string& name, const SGGeod& pos, int freq, int range,
                                 PositionedID apt);
   PositionedID insertFix(const std::string& ident, const SGGeod& aPos);
   
-  PositionedID createUserWaypoint(const std::string& ident, const SGGeod& aPos);
+  PositionedID createPOI(FGPositioned::Type ty, const std::string& ident, const SGGeod& aPos);
+  
+  bool removePOI(FGPositioned::Type ty, const std::string& aIdent);
+    
+  void dropGroundnetFor(PositionedID aAirport);
+  
+  /**
+   * Remove all ground-nets globally from the cache.
+   * This includes parking and taxi-nodes and edges between them. It's useful
+   * when scenery paths change, since the ground-nets depend on the scenery.
+   * Using this we can avoid havind to rebuild the entire cache.
+   */
+  void dropAllGroundnets();
   
   PositionedID insertParking(const std::string& name, const SGGeod& aPos,
                              PositionedID aAirport,
@@ -139,18 +144,19 @@ public:
   
   /**
    * Modify the position of an existing item.
-   * Use with care, since loaded instances will not be updated (at present -
-   * this behaviour could in theorey be improved)
    */
   void updatePosition(PositionedID item, const SGGeod &pos);
   
-  FGPositioned::List findAllWithIdent(const std::string& ident,
-                                      FGPositioned::Filter* filter, bool exact);
-  FGPositioned::List findAllWithName(const std::string& ident,
-                                      FGPositioned::Filter* filter, bool exact);
+  FGPositionedList findAllWithIdent( const std::string& ident,
+                                     FGPositioned::Filter* filter,
+                                     bool exact );
+  FGPositionedList findAllWithName( const std::string& ident,
+                                    FGPositioned::Filter* filter,
+                                    bool exact );
   
-  FGPositionedRef findClosestWithIdent(const std::string& aIdent,
-                                      const SGGeod& aPos, FGPositioned::Filter* aFilter);
+  FGPositionedRef findClosestWithIdent( const std::string& aIdent,
+                                        const SGGeod& aPos,
+                                        FGPositioned::Filter* aFilter );
   
 
   /**
@@ -192,7 +198,7 @@ public:
    * Given a runway and type, find the corresponding navaid (ILS / GS / OM)
    */
   PositionedID findNavaidForRunway(PositionedID runway, FGPositioned::Type ty);
-  
+
   /**
    * given a navaid name (or similar) from apt.dat / nav.dat, find the
    * corresponding airport and runway IDs.
@@ -250,12 +256,33 @@ public:
   
   PositionedIDVec findAirportParking(PositionedID airport, const std::string& flightType,
                                      int radius);
+
+
+    class Transaction
+    {
+    public:
+        Transaction(NavDataCache* cache);
+        ~Transaction();
+        
+        void commit();
+    private:
+        NavDataCache* _instance;
+        bool _committed;
+    };
+    
+    bool isReadOnly() const;
 private:
   NavDataCache();
   
   friend class RebuildThread;
   void doRebuild();
   
+  friend class Transaction;
+  
+    void beginTransaction();
+    void commitTransaction();
+    void abortTransaction();
+    
   class NavDataCachePrivate;
   std::auto_ptr<NavDataCachePrivate> d;      
 };