base_gen.hh

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 * Authors: Thomas Grass
 *          Andreas Hansson
 *          Sascha Bischoff
 *          Neha Agarwal
 */

#ifndef __CPU_TRAFFIC_GEN_BASE_GEN_HH__
#define __CPU_TRAFFIC_GEN_BASE_GEN_HH__

#include "base/bitfield.hh"
#include "base/intmath.hh"
#include "mem/packet.hh"

class BaseTrafficGen;

class BaseGen
{

  protected:

    const std::string _name;

    const MasterID masterID;

    PacketPtr getPacket(Addr addr, unsigned size, const MemCmd& cmd,
                        Request::FlagsType flags = 0);

  public:

    const Tick duration;

    BaseGen(SimObject &obj, MasterID master_id, Tick _duration);

    virtual ~BaseGen() { }

    std::string name() const { return _name; }

    virtual void enter() = 0;

    virtual PacketPtr getNextPacket() = 0;

    virtual void exit() { };

    virtual Tick nextPacketTick(bool elastic, Tick delay) const = 0;

};

class StochasticGen : public BaseGen
{
  public:
    StochasticGen(SimObject &obj,
                  MasterID master_id, Tick _duration,
                  Addr start_addr, Addr end_addr,
                  Addr _blocksize, Addr cacheline_size,
                  Tick min_period, Tick max_period,
                  uint8_t read_percent, Addr data_limit);

  protected:
    const Addr startAddr;

    const Addr endAddr;

    const Addr blocksize;

    const Addr cacheLineSize;

    const Tick minPeriod;
    const Tick maxPeriod;

    const uint8_t readPercent;

    const Addr dataLimit;
};

#endif