5cfff7d5bb
Intended Use:
A SimObject will call the serializer when it needs the state to be serializable (i.e. switchCPUs, checkpoint, switch memory access model). It will call the requestSeialization() function.
The Serializer will signal all the objects in its list to drain their state via the SimObject method drain(). Drain() has a default implementation to just signal done.
When each object is drained it will signal the Serializer that it has drained via the signalDrained() function.
The Serializer will collect these signals, when all have drained it will signal the initial requestor via serializationComplete() method in the SimObject.
Once that object is done, it will signal the Serializer to resumeExecution().
The Serializer will signal all the objects in its list to resume via the resume() method on the SimObject.
SConscript:
Add serializer object to build list
sim/sim_object.cc:
Add default behavior for drain (just signal finished, must be overided if you really must drain something)
sim/sim_object.hh:
Add functions for serializer
--HG--
extra : convert_revision : 15aa2d1b42010c2d703bef9114c11d079c216170
120 lines
3.6 KiB
C++
120 lines
3.6 KiB
C++
/*
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* Copyright (c) 2001-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* @file
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* User Console Definitions
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*/
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#ifndef __SIM_OBJECT_HH__
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#define __SIM_OBJECT_HH__
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#include <map>
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#include <list>
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#include <vector>
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#include <iostream>
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#include "sim/serialize.hh"
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#include "sim/startup.hh"
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class Serializer;
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/*
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* Abstract superclass for simulation objects. Represents things that
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* correspond to physical components and can be specified via the
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* config file (CPUs, caches, etc.).
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*/
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class SimObject : public Serializable, protected StartupCallback
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{
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public:
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struct Params {
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std::string name;
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};
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protected:
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Params *_params;
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public:
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const Params *params() const { return _params; }
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private:
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friend class Serializer;
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typedef std::vector<SimObject *> SimObjectList;
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// list of all instantiated simulation objects
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static SimObjectList simObjectList;
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public:
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SimObject(Params *_params);
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SimObject(const std::string &_name);
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virtual ~SimObject() {}
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virtual const std::string name() const { return params()->name; }
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// initialization pass of all objects.
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// Gets invoked after construction, before unserialize.
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virtual void init();
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virtual void connect();
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static void initAll();
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static void connectAll();
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// register statistics for this object
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virtual void regStats();
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virtual void regFormulas();
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virtual void resetStats();
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// static: call reg_stats on all SimObjects
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static void regAllStats();
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// static: call resetStats on all SimObjects
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static void resetAllStats();
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// static: call nameOut() & serialize() on all SimObjects
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static void serializeAll(std::ostream &);
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// Methods to drain objects in order to take checkpoints
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// Or switch from timing -> atomic memory model
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virtual void drain(Serializer *serializer);
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virtual void resume() { return;} ;
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virtual void serializationComplete()
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{ assert(0 && "Unimplemented"); };
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#ifdef DEBUG
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public:
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bool doDebugBreak;
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static void debugObjectBreak(const std::string &objs);
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#endif
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public:
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bool doRecordEvent;
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void recordEvent(const std::string &stat);
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};
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#endif // __SIM_OBJECT_HH__
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