#ifndef __SIM_OBJECT_HH__
#define __SIM_OBJECT_HH__
-#include <map>
+#include <iostream>
#include <list>
+#include <map>
+#include <string>
#include <vector>
-#include <iostream>
+#include "params/SimObject.hh"
+#include "sim/eventq.hh"
#include "sim/serialize.hh"
#include "sim/startup.hh"
-class Serializer;
+class BaseCPU;
+class Event;
/*
* Abstract superclass for simulation objects. Represents things that
* correspond to physical components and can be specified via the
* config file (CPUs, caches, etc.).
*/
-class SimObject : public Serializable, protected StartupCallback
+class SimObject
+ : public EventManager, public Serializable, protected StartupCallback
{
public:
- struct Params {
- std::string name;
+ enum State {
+ Running,
+ Draining,
+ Drained
};
+ private:
+ State state;
+
protected:
- Params *_params;
+ void changeState(State new_state) { state = new_state; }
public:
- const Params *params() const { return _params; }
+ State getState() { return state; }
private:
- friend class Serializer;
-
typedef std::vector<SimObject *> SimObjectList;
// list of all instantiated simulation objects
static SimObjectList simObjectList;
- public:
- SimObject(Params *_params);
- SimObject(const std::string &_name);
+ protected:
+ const SimObjectParams *_params;
+ public:
+ typedef SimObjectParams Params;
+ const Params *params() const { return _params; }
+ SimObject(const Params *_params);
virtual ~SimObject() {}
+ public:
+
virtual const std::string name() const { return params()->name; }
// initialization pass of all objects.
// Gets invoked after construction, before unserialize.
virtual void init();
- virtual void connect();
static void initAll();
- static void connectAll();
// register statistics for this object
virtual void regStats();
// static: call nameOut() & serialize() on all SimObjects
static void serializeAll(std::ostream &);
+ static void unserializeAll(Checkpoint *cp);
// Methods to drain objects in order to take checkpoints
// Or switch from timing -> atomic memory model
- virtual void drain(Serializer *serializer);
- virtual void resume() { return;} ;
- virtual void serializationComplete()
- { assert(0 && "Unimplemented"); };
+ // Drain returns 0 if the simobject can drain immediately or
+ // the number of times the drain_event's process function will be called
+ // before the object will be done draining. Normally this should be 1
+ virtual unsigned int drain(Event *drain_event);
+ virtual void resume();
+ virtual void setMemoryMode(State new_mode);
+ virtual void switchOut();
+ virtual void takeOverFrom(BaseCPU *cpu);
#ifdef DEBUG
public:
static void debugObjectBreak(const std::string &objs);
#endif
+ /**
+ * Find the SimObject with the given name and return a pointer to
+ * it. Primarily used for interactive debugging. Argument is
+ * char* rather than std::string to make it callable from gdb.
+ */
+ static SimObject *find(const char *name);
+
public:
- bool doRecordEvent;
void recordEvent(const std::string &stat);
};