sim_events.hh revision 7821
1/* 2 * Copyright (c) 2002-2005 The Regents of The University of Michigan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Authors: Nathan Binkert 29 */ 30 31#ifndef __SIM_SIM_EVENTS_HH__ 32#define __SIM_SIM_EVENTS_HH__ 33 34#include "sim/eventq.hh" 35 36// 37// Event to terminate simulation at a particular cycle/instruction 38// 39class SimLoopExitEvent : public Event 40{ 41 protected: 42 // string explaining why we're terminating 43 std::string cause; 44 int code; 45 Tick repeat; 46 47 public: 48 SimLoopExitEvent(const std::string &_cause, int c, Tick repeat = 0); 49 50 std::string getCause() { return cause; } 51 int getCode() { return code; } 52 53 void process(); // process event 54 55 virtual const char *description() const; 56}; 57 58class CountedDrainEvent : public Event 59{ 60 private: 61 // Count of how many objects have not yet drained 62 int count; 63 64 public: 65 CountedDrainEvent(); 66 67 void process(); 68 69 void setCount(int _count) { count = _count; } 70 71 int getCount() { return count; } 72}; 73 74// 75// Event class to terminate simulation after 'n' related events have 76// occurred using a shared counter: used to terminate when *all* 77// threads have reached a particular instruction count 78// 79class CountedExitEvent : public Event 80{ 81 private: 82 std::string cause; // string explaining why we're terminating 83 int &downCounter; // decrement & terminate if zero 84 85 public: 86 CountedExitEvent(const std::string &_cause, int &_downCounter); 87 88 void process(); // process event 89 90 virtual const char *description() const; 91}; 92 93 94#endif // __SIM_SIM_EVENTS_HH__ 95