scTimedFIFO.h

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 /*  @author János Végh (jvegh)
 *  @bug No known bugs.
 */
 
// Header for the scEMPA simulator, Inter-core block
 
#ifndef scTimedIGPFIFO_h
#define scTimedIGPFIFO_h
#include <systemc>
//#include "scGridPoint.h"
 
class scIGPMessage;
using namespace sc_core;
//Submodule forward class declarations
typedef struct{
    sc_core::sc_time Time;
    scIGPMessage* Message;
} TimedIGPMessage_type;
 
// This is a FIFO for the timed  GridPoint events
 
class TimedIGPMessage_write_if : virtual public sc_interface
{
   public:
     virtual void write(TimedIGPMessage_type) = 0;
     virtual void reset() = 0;
};
 
class TimedIGPMessage_read_if : virtual public sc_interface
{
   public:
     virtual void read(TimedIGPMessage_type &) = 0;
     virtual int num_available() = 0;
};
 
// This is the FIFO for the timed scGridPoint events
// This FIFO is time ordered; the new messages are inserted in the queue
// according to their deadline
class scTimedIGPMessage_fifo: public sc_core::sc_channel, TimedIGPMessage_write_if, TimedIGPMessage_read_if
{
   public:
     scTimedIGPMessage_fifo(const sc_module_name& name) ;
     virtual
       ~scTimedIGPMessage_fifo(void){}
     void write(TimedIGPMessage_type T);
     void read(TimedIGPMessage_type &T);
     void dowrite(TimedIGPMessage_type T);
     void doread(TimedIGPMessage_type &T);
     void reset() { num_elements = first = 0;}
     int num_available() { return num_elements;}
     bool NewTimeLower(TimedIGPMessage_type New, TimedIGPMessage_type Old);
     sc_time NextTime_Get(void){if(num_elements) return data[first].Time; else return SC_ZERO_TIME;}
     int Length_Get(void){ return max;}
     sc_event TimedIGPMessage_fifo_write_event, TimedIGPMessage_fifo_read_event;
   private:
     enum e { max = 10 }; // Only for testing!
     TimedIGPMessage_type data[max];
     int num_elements, first;
};
 
 
#endif // scTimedIGPFIFO