kernel.hh

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/*
 * Copyright 2018 Google, Inc.
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 * neither the name of the copyright holders nor the names of its
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#ifndef __SYSTEMC_KERNEL_HH__
#define __SYSTEMC_KERNEL_HH__

#include "params/SystemC_Kernel.hh"
#include "sim/sim_object.hh"
#include "systemc/ext/core/sc_main.hh"

namespace sc_gem5
{

/*
 * This class represents the systemc kernel. There should be exactly one in
 * the simulation. It receives gem5 SimObject lifecycle callbacks (init,
 * regStats, etc.) and manages the lifecycle of the systemc simulation
 * accordingly. It also acts as a collecting point for systemc related
 * control functionality.
 */
class Kernel : public SimObject
{
  public:
    typedef SystemC_KernelParams Params;
    Kernel(Params *params);

    void init() override;
    void regStats() override;
    void startup() override;

    void t0Handler();

    static sc_core::sc_status status();
    static void status(sc_core::sc_status s);

    static void stop();

    static bool startOfSimulationComplete();
    static bool endOfSimulationComplete();

  private:
    static void stopWork();

    EventWrapper<Kernel, &Kernel::t0Handler> t0Event;
};

extern Kernel *kernel;

} // namespace sc_gem5

#endif // __SYSTEMC_KERNEL_H__