GpsIntHandler.h

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// $Id: GpsIntHandler.h,v 1.1.1.1 2009/07/06 23:57:04 eml Exp $

#ifndef GCP_ANTENNA_CONTROL_GPSINTHANDLER_H
#define GCP_ANTENNA_CONTROL_GPSINTHANDLER_H

#define GPS_CALLBACK_FN(fn) void (fn)(void* args)

#include "gcp/util/common/Runnable.h"
#include "gcp/util/common/TimeVal.h"

#include <string>
#include <vector>

namespace gcp {
  namespace antenna {
    namespace control {

      class GpsIntHandler : public gcp::util::Runnable {
      public:

    GpsIntHandler(bool spawn, bool simulateTimer, 
         bool simulateGpsCard, unsigned short priority);

    GpsIntHandler(bool spawn, bool simulateTimer, 
         bool simulateGpsCard=false);

    virtual ~GpsIntHandler();

    void registerCallback(GPS_CALLBACK_FN(*fn), void* arg);

    void run();
    void runReal();
    void runSim();
    void runTest();

    // Stop this object from running

    void stop();

    // Read the current date from the gps board

    void getDate(gcp::util::TimeVal& lastTick);

    gcp::util::TimeVal& lastTick() {
      return lastTick_;
    }

    int fd() {
      return fd_;
    }
    
      private:
    
    struct HandlerInfo {
      GPS_CALLBACK_FN(*fn_);
      void* arg_;
      
      HandlerInfo(GPS_CALLBACK_FN(*fn), void* arg) :
        fn_(fn), arg_(arg) {}
    };

    static const std::string devName_;

    std::vector<HandlerInfo> handlers_;

    // If true, stop running this object

    volatile bool stop_;

    // The file descriptor associated with the gps interrupt
    // driver

    int fd_;

    bool simulateTimer_;
    bool simulateGpsCard_;

    static RUN_FN(runFn);
    
      public:

    // Open the device

    void open();

      private:
    
    // Close the device

    void close();

    // Call handlers when the device becomes readable

    void callHandlers();

    gcp::util::TimeVal lastTick_;

      }; // End class GpsIntHandler

    } // End namespace control
  } // End namespace antenna
} // End namespace gcp



#endif // End #ifndef GCP_ANTENNA_CONTROL_GPSINTHANDLER_H