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/*
* Copyright (c) 2002-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
*/
#ifndef __SIM_SIM_EVENTS_HH__
#define __SIM_SIM_EVENTS_HH__
#include "sim/eventq.hh"
//
// Event to terminate simulation at a particular cycle/instruction
//
class SimLoopExitEvent : public Event
{
private:
// string explaining why we're terminating
std::string cause;
int code;
Tick repeat;
public:
// Default constructor. Only really used for derived classes.
SimLoopExitEvent()
: Event(&mainEventQueue, Sim_Exit_Pri)
{ }
SimLoopExitEvent(EventQueue *q,
Tick _when, Tick _repeat, const std::string &_cause,
int c = 0)
: Event(q, Sim_Exit_Pri), cause(_cause),
code(c), repeat(_repeat)
{ setFlags(IsExitEvent); schedule(_when); }
// SimLoopExitEvent(EventQueue *q,
// Tick _when, const std::string &_cause,
// Tick _repeat = 0, int c = 0)
// : Event(q, Sim_Exit_Pri), cause(_cause), code(c), repeat(_repeat)
// { setFlags(IsExitEvent); schedule(_when); }
std::string getCause() { return cause; }
int getCode() { return code; }
void process(); // process event
virtual const char *description() const;
};
class CountedDrainEvent : public SimLoopExitEvent
{
private:
// Count of how many objects have not yet drained
int count;
public:
CountedDrainEvent()
: count(0)
{ }
void process();
void setCount(int _count) { count = _count; }
int getCount() { return count; }
};
//
// Event class to terminate simulation after 'n' related events have
// occurred using a shared counter: used to terminate when *all*
// threads have reached a particular instruction count
//
class CountedExitEvent : public Event
{
private:
std::string cause; // string explaining why we're terminating
int &downCounter; // decrement & terminate if zero
public:
CountedExitEvent(EventQueue *q, const std::string &_cause,
Tick _when, int &_downCounter);
void process(); // process event
virtual const char *description() const;
};
//
// Event to check swap usage
//
class CheckSwapEvent : public Event
{
private:
int interval;
public:
CheckSwapEvent(EventQueue *q, int ival)
: Event(q), interval(ival)
{ schedule(curTick + interval); }
void process(); // process event
virtual const char *description() const;
};
#endif // __SIM_SIM_EVENTS_HH__
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