#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/environment/metar.hxx>
-#ifdef ENABLE_THREADS
+#if defined(ENABLE_THREADS) && ENABLE_THREADS
# include <simgear/threads/SGThread.hxx>
# include <simgear/threads/SGQueue.hxx>
#endif
# include <math.h>
#endif
+#include <queue>
#include <vector>
+SG_USING_STD(queue);
SG_USING_STD(vector);
class SGPropertyNode;
};
+// A convenience wrapper around SGMetar
+struct FGMetarResult {
+ string icao;
+ SGMetar *m;
+};
+
+
\f
/**
* Interplation controller using the SGMetar class
virtual void init ();
virtual void reinit ();
virtual void update (double delta_time_sec);
-
virtual void setEnvironment (FGEnvironment * environment);
private:
SGPropertyNode *proxy_port;
SGPropertyNode *proxy_auth;
- bool fetch_data (const string &icao);
+ FGMetarResult fetch_data( const string &icao );
+ virtual void update_metar_properties( SGMetar *m );
void update_env_config();
-
private:
-#ifdef ENABLE_THREADS
+#if defined(ENABLE_THREADS) && ENABLE_THREADS
+ /**
+ * FIFO queue which holds a pointer to the fetched metar data.
+ */
+ SGBlockingQueue < string > request_queue;
+
+ /**
+ * FIFO queue which holds a pointer to the fetched metar data.
+ */
+ SGBlockingQueue < FGMetarResult > result_queue;
+#else
+ /**
+ * FIFO queue which holds a pointer to the fetched metar data.
+ */
+ queue < string > request_queue;
+
/**
* FIFO queue which holds a pointer to the fetched metar data.
*/
- SGBlockingQueue< SGMetar * > metar_queue;
+ queue < FGMetarResult > result_queue;
+#endif
+#if defined(ENABLE_THREADS) && ENABLE_THREADS
/**
* This class represents the thread of execution responsible for
* fetching the metar data.
~MetarThread() {}
/**
- * Reads the tile from disk.
+ * Fetche the metar data from the NOAA.
*/
void run();
* Thread cleanup handler.
*/
friend void metar_cleanup_handler( void* );
+
#endif // ENABLE_THREADS
+
+ int _error_count;
+ double _dt;
+ double _error_dt;
};
#endif // _ENVIRONMENT_CTRL_HXX