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flightgear/src/Traffic/TrafficMgr.hxx

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/* -*- Mode: C++ -*- *****************************************************
* TrafficMgr.hxx
* Written by Durk Talsma. Started May 5, 2004
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*
**************************************************************************/
/**************************************************************************
* This file contains the class definitions for a (Top Level) traffic
* manager for FlightGear.
*
* This is traffic manager version II. The major difference from version
* I is that the Flight Schedules are decoupled from the AIAircraft
* entities. This allows for a much greater flexibility in setting up
* Irregular schedules. Traffic Manager II also makes no longer use of .xml
* based configuration files.
*
* Here is a step plan to achieve the goal of creating Traffic Manager II
*
* 1) Read aircraft data from a simple text file, like the one provided by
* Gabor Toth
* 2) Create a new database structure of SchedFlights. This new database
* should not be part of the Schedule class, but of TrafficManager itself
* 3) Each aircraft should have a list of possible Flights it can operate
* (i.e. airline and AC type match).
* 4) Aircraft processing proceeds as current. During initialization, we seek
* the most urgent flight that needs to be operated
* 5) Modify the getNextLeg function so that the next flight is loaded smoothly.
**************************************************************************/
#ifndef _TRAFFICMGR_HXX_
#define _TRAFFICMGR_HXX_
#include <set>
#include <memory>
#include <simgear/structure/subsystem_mgr.hxx>
#include <simgear/props/propertyObject.hxx>
#include <simgear/misc/sg_path.hxx>
#include "SchedFlight.hxx"
#include "Schedule.hxx"
class Heuristic
{
public:
std::string registration;
unsigned int runCount;
unsigned int hits;
unsigned int lastRun;
};
typedef std::vector<Heuristic> heuristicsVector;
typedef std::vector<Heuristic>::iterator heuristicsVectorIterator;
typedef std::map < std::string, Heuristic> HeuristicMap;
typedef HeuristicMap::iterator HeuristicMapIterator;
class ScheduleParseThread;
class FGTrafficManager : public SGSubsystem
{
private:
bool inited;
bool doingInit;
bool trafficSyncRequested;
double waitingMetarTime;
std::string waitingMetarStation;
ScheduleVector scheduledAircraft;
ScheduleVectorIterator currAircraft, currAircraftClosest;
FGScheduledFlightMap flights;
void readTimeTableFromFile(SGPath infilename);
void Tokenize(const std::string& str, std::vector<std::string>& tokens, const std::string& delimiters = " ");
simgear::PropertyObject<bool> enabled, aiEnabled, realWxEnabled, metarValid, active, aiDataUpdateNow;
void loadHeuristics();
bool doDataSync();
void finishInit();
void shutdown();
friend class ScheduleParseThread;
std::unique_ptr<ScheduleParseThread> scheduleParser;
// helper to read and parse the schedule data.
// this is run on a helper thread, so be careful about
// accessing properties during parsing
void parseSchedule(const SGPath& path);
bool metarReady(double dt);
public:
FGTrafficManager();
~FGTrafficManager();
// Subsystem API.
void init() override;
void update(double time) override;
// Subsystem identification.
static const char* staticSubsystemClassId() { return "traffic-manager"; }
FGScheduledFlightVecIterator getFirstFlight(const std::string &ref) { return flights[ref].begin(); }
FGScheduledFlightVecIterator getLastFlight(const std::string &ref) { return flights[ref].end(); }
};
#endif