traffic_gen.hh

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/*
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 * met: redistributions of source code must retain the above copyright
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 * Authors: Thomas Grass
 *          Andreas Hansson
 *          Sascha Bischoff
 */

#ifndef __CPU_TRAFFIC_GEN_TRAFFIC_GEN_HH__
#define __CPU_TRAFFIC_GEN_TRAFFIC_GEN_HH__

#include <unordered_map>

#include "cpu/testers/traffic_gen/base.hh"

struct TrafficGenParams;

class TrafficGen : public BaseTrafficGen
{
  private: // Params
    const std::string configFile;

  private:
    std::string resolveFile(const std::string &name);

    void parseConfig();

    size_t nextState();

    struct Transition {
        uint32_t from;
        uint32_t to;
        double p;
    };

    std::vector<std::vector<double> > transitionMatrix;

    uint32_t currState;

    std::unordered_map<uint32_t, std::shared_ptr<BaseGen>> states;

  protected: // BaseTrafficGen
    std::shared_ptr<BaseGen> nextGenerator() override;

  public:

    TrafficGen(const TrafficGenParams* p);

    ~TrafficGen() {}

    void init() override;
    void initState() override;

    void serialize(CheckpointOut &cp) const override;
    void unserialize(CheckpointIn &cp) override;

};

#endif //__CPU_TRAFFIC_GEN_TRAFFIC_GEN_HH__