e06321091d
For now, there is still a single global event queue, but this is necessary for making the steps towards a parallelized m5.
108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/*
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* Copyright (c) 2002-2005 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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* Authors: Nathan Binkert
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*/
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#ifndef __SIM_SIM_EVENTS_HH__
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#define __SIM_SIM_EVENTS_HH__
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#include "sim/eventq.hh"
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//
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// Event to terminate simulation at a particular cycle/instruction
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//
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class SimLoopExitEvent : public Event
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{
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protected:
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// string explaining why we're terminating
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std::string cause;
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int code;
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Tick repeat;
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public:
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SimLoopExitEvent(const std::string &_cause, int c, Tick repeat = 0);
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std::string getCause() { return cause; }
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int getCode() { return code; }
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void process(); // process event
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virtual const char *description() const;
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};
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class CountedDrainEvent : public SimLoopExitEvent
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{
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private:
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// Count of how many objects have not yet drained
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int count;
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public:
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CountedDrainEvent();
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void process();
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void setCount(int _count) { count = _count; }
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int getCount() { return count; }
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};
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//
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// Event class to terminate simulation after 'n' related events have
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// occurred using a shared counter: used to terminate when *all*
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// threads have reached a particular instruction count
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//
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class CountedExitEvent : public Event
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{
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private:
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std::string cause; // string explaining why we're terminating
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int &downCounter; // decrement & terminate if zero
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public:
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CountedExitEvent(const std::string &_cause, int &_downCounter);
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void process(); // process event
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virtual const char *description() const;
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};
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//
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// Event to check swap usage
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//
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class CheckSwapEvent : public Event
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{
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private:
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int interval;
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public:
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CheckSwapEvent(int ival);
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void process(); // process event
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virtual const char *description() const;
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};
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#endif // __SIM_SIM_EVENTS_HH__
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