sim_events.cc (7819:afe8476ee9e9) | sim_events.cc (7820:4ee66d8c1dd8) |
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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#include <string> 32 33#include "base/callback.hh" 34#include "base/hostinfo.hh" 35#include "sim/eventq.hh" 36#include "sim/sim_events.hh" 37#include "sim/sim_exit.hh" 38#include "sim/stats.hh" 39 40using namespace std; 41 42SimLoopExitEvent::SimLoopExitEvent(const std::string &_cause, int c, Tick r) 43 : Event(Sim_Exit_Pri), cause(_cause), code(c), repeat(r) 44{ 45 setFlags(IsExitEvent); 46} 47 48 49// 50// handle termination event 51// 52void 53SimLoopExitEvent::process() 54{ 55 // if this got scheduled on a different queue (e.g. the committed 56 // instruction queue) then make a corresponding event on the main 57 // queue. 58 if (!getFlags(IsMainQueue)) { 59 exitSimLoop(cause, code); 60 delete this; 61 } 62 63 // otherwise do nothing... the IsExitEvent flag takes care of 64 // exiting the simulation loop and returning this object to Python 65 66 // but if you are doing this on intervals, don't forget to make another 67 if (repeat) { 68 assert(getFlags(IsMainQueue)); 69 mainEventQueue.schedule(this, curTick + repeat); 70 } 71} 72 73 74const char * 75SimLoopExitEvent::description() const 76{ 77 return "simulation loop exit"; 78} 79 80void 81exitSimLoop(const std::string &message, int exit_code, Tick when, Tick repeat) 82{ 83 Event *event = new SimLoopExitEvent(message, exit_code, repeat); 84 mainEventQueue.schedule(event, when); 85} 86 87CountedDrainEvent::CountedDrainEvent() 88 : SimLoopExitEvent("Finished drain", 0), count(0) 89{ } 90 91void 92CountedDrainEvent::process() 93{ 94 if (--count == 0) 95 exitSimLoop(cause, code); 96} 97 98// 99// constructor: automatically schedules at specified time 100// 101CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter) 102 : Event(Sim_Exit_Pri), cause(_cause), downCounter(counter) 103{ 104 // catch stupid mistakes 105 assert(downCounter > 0); 106} 107 108 109// 110// handle termination event 111// 112void 113CountedExitEvent::process() 114{ 115 if (--downCounter == 0) { 116 exitSimLoop(cause, 0); 117 } 118} 119 120 121const char * 122CountedExitEvent::description() const 123{ 124 return "counted exit"; 125} | 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#include <string> 32 33#include "base/callback.hh" 34#include "base/hostinfo.hh" 35#include "sim/eventq.hh" 36#include "sim/sim_events.hh" 37#include "sim/sim_exit.hh" 38#include "sim/stats.hh" 39 40using namespace std; 41 42SimLoopExitEvent::SimLoopExitEvent(const std::string &_cause, int c, Tick r) 43 : Event(Sim_Exit_Pri), cause(_cause), code(c), repeat(r) 44{ 45 setFlags(IsExitEvent); 46} 47 48 49// 50// handle termination event 51// 52void 53SimLoopExitEvent::process() 54{ 55 // if this got scheduled on a different queue (e.g. the committed 56 // instruction queue) then make a corresponding event on the main 57 // queue. 58 if (!getFlags(IsMainQueue)) { 59 exitSimLoop(cause, code); 60 delete this; 61 } 62 63 // otherwise do nothing... the IsExitEvent flag takes care of 64 // exiting the simulation loop and returning this object to Python 65 66 // but if you are doing this on intervals, don't forget to make another 67 if (repeat) { 68 assert(getFlags(IsMainQueue)); 69 mainEventQueue.schedule(this, curTick + repeat); 70 } 71} 72 73 74const char * 75SimLoopExitEvent::description() const 76{ 77 return "simulation loop exit"; 78} 79 80void 81exitSimLoop(const std::string &message, int exit_code, Tick when, Tick repeat) 82{ 83 Event *event = new SimLoopExitEvent(message, exit_code, repeat); 84 mainEventQueue.schedule(event, when); 85} 86 87CountedDrainEvent::CountedDrainEvent() 88 : SimLoopExitEvent("Finished drain", 0), count(0) 89{ } 90 91void 92CountedDrainEvent::process() 93{ 94 if (--count == 0) 95 exitSimLoop(cause, code); 96} 97 98// 99// constructor: automatically schedules at specified time 100// 101CountedExitEvent::CountedExitEvent(const std::string &_cause, int &counter) 102 : Event(Sim_Exit_Pri), cause(_cause), downCounter(counter) 103{ 104 // catch stupid mistakes 105 assert(downCounter > 0); 106} 107 108 109// 110// handle termination event 111// 112void 113CountedExitEvent::process() 114{ 115 if (--downCounter == 0) { 116 exitSimLoop(cause, 0); 117 } 118} 119 120 121const char * 122CountedExitEvent::description() const 123{ 124 return "counted exit"; 125} |
126 127CheckSwapEvent::CheckSwapEvent(int ival) 128 : interval(ival) 129{ 130 mainEventQueue.schedule(this, curTick + interval); 131} 132 133void 134CheckSwapEvent::process() 135{ 136 /* Check the amount of free swap space */ 137 long swap; 138 139 /* returns free swap in KBytes */ 140 swap = procInfo("/proc/meminfo", "SwapFree:"); 141 142 if (swap < 1000) 143 ccprintf(cerr, "\a\a\aWarning! Swap space is low (%d)\n", swap); 144 145 if (swap < 100) { 146 cerr << "\a\aAborting Simulation! Inadequate swap space!\n\n"; 147 exitSimLoop("Lack of swap space"); 148 } 149 150 assert(getFlags(IsMainQueue)); 151 mainEventQueue.schedule(this, curTick + interval); 152} 153 154const char * 155CheckSwapEvent::description() const 156{ 157 return "check swap"; 158} | |