sim_events.cc revision 2665
15703Ssaidi@eecs.umich.edu/* 25703Ssaidi@eecs.umich.edu * Copyright (c) 2002-2005 The Regents of The University of Michigan 35703Ssaidi@eecs.umich.edu * All rights reserved. 45703Ssaidi@eecs.umich.edu * 55703Ssaidi@eecs.umich.edu * Redistribution and use in source and binary forms, with or without 65703Ssaidi@eecs.umich.edu * modification, are permitted provided that the following conditions are 75703Ssaidi@eecs.umich.edu * met: redistributions of source code must retain the above copyright 85703Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer; 95703Ssaidi@eecs.umich.edu * redistributions in binary form must reproduce the above copyright 105703Ssaidi@eecs.umich.edu * notice, this list of conditions and the following disclaimer in the 115703Ssaidi@eecs.umich.edu * documentation and/or other materials provided with the distribution; 125703Ssaidi@eecs.umich.edu * neither the name of the copyright holders nor the names of its 135703Ssaidi@eecs.umich.edu * contributors may be used to endorse or promote products derived from 145703Ssaidi@eecs.umich.edu * this software without specific prior written permission. 155703Ssaidi@eecs.umich.edu * 165703Ssaidi@eecs.umich.edu * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 175703Ssaidi@eecs.umich.edu * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 185703Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 195703Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 205703Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 215703Ssaidi@eecs.umich.edu * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 225703Ssaidi@eecs.umich.edu * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 235703Ssaidi@eecs.umich.edu * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 245703Ssaidi@eecs.umich.edu * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 255703Ssaidi@eecs.umich.edu * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 265703Ssaidi@eecs.umich.edu * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 275703Ssaidi@eecs.umich.edu * 285703Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 295703Ssaidi@eecs.umich.edu */ 305703Ssaidi@eecs.umich.edu 315703Ssaidi@eecs.umich.edu#include <string> 325703Ssaidi@eecs.umich.edu 335703Ssaidi@eecs.umich.edu#include "base/callback.hh" 345703Ssaidi@eecs.umich.edu#include "base/hostinfo.hh" 355703Ssaidi@eecs.umich.edu#include "sim/eventq.hh" 365703Ssaidi@eecs.umich.edu#include "sim/param.hh" 375703Ssaidi@eecs.umich.edu#include "sim/sim_events.hh" 385703Ssaidi@eecs.umich.edu#include "sim/sim_exit.hh" 395703Ssaidi@eecs.umich.edu#include "sim/startup.hh" 405703Ssaidi@eecs.umich.edu#include "sim/stats.hh" 415703Ssaidi@eecs.umich.edu 425703Ssaidi@eecs.umich.eduusing namespace std; 435703Ssaidi@eecs.umich.edu 445703Ssaidi@eecs.umich.edu// 455703Ssaidi@eecs.umich.edu// handle termination event 465703Ssaidi@eecs.umich.edu// 475703Ssaidi@eecs.umich.eduvoid 485703Ssaidi@eecs.umich.eduSimExitEvent::process() 495703Ssaidi@eecs.umich.edu{ 505703Ssaidi@eecs.umich.edu // This event does not autodelete because exitNow may be called, 515703Ssaidi@eecs.umich.edu // and the function will never be allowed to finish. 525703Ssaidi@eecs.umich.edu if (theQueue() == &mainEventQueue) { 535703Ssaidi@eecs.umich.edu string _cause = cause; 545703Ssaidi@eecs.umich.edu int _code = code; 555703Ssaidi@eecs.umich.edu delete this; 565703Ssaidi@eecs.umich.edu exitNow(_cause, _code); 575703Ssaidi@eecs.umich.edu } else { 585703Ssaidi@eecs.umich.edu new SimExitEvent(cause, code); 595703Ssaidi@eecs.umich.edu delete this; 605703Ssaidi@eecs.umich.edu } 615703Ssaidi@eecs.umich.edu} 625703Ssaidi@eecs.umich.edu 635703Ssaidi@eecs.umich.edu 645703Ssaidi@eecs.umich.educonst char * 655703Ssaidi@eecs.umich.eduSimExitEvent::description() 665703Ssaidi@eecs.umich.edu{ 675703Ssaidi@eecs.umich.edu return "simulation termination"; 685703Ssaidi@eecs.umich.edu} 695703Ssaidi@eecs.umich.edu 705703Ssaidi@eecs.umich.edu// 715703Ssaidi@eecs.umich.edu// constructor: automatically schedules at specified time 725703Ssaidi@eecs.umich.edu// 735703Ssaidi@eecs.umich.eduCountedExitEvent::CountedExitEvent(EventQueue *q, const std::string &_cause, 745703Ssaidi@eecs.umich.edu Tick _when, int &_downCounter) 755703Ssaidi@eecs.umich.edu : Event(q, Sim_Exit_Pri), 765703Ssaidi@eecs.umich.edu cause(_cause), 775703Ssaidi@eecs.umich.edu downCounter(_downCounter) 785703Ssaidi@eecs.umich.edu{ 795703Ssaidi@eecs.umich.edu // catch stupid mistakes 805703Ssaidi@eecs.umich.edu assert(downCounter > 0); 815703Ssaidi@eecs.umich.edu 825703Ssaidi@eecs.umich.edu schedule(_when); 835703Ssaidi@eecs.umich.edu} 845703Ssaidi@eecs.umich.edu 855703Ssaidi@eecs.umich.edu 865703Ssaidi@eecs.umich.edu// 875703Ssaidi@eecs.umich.edu// handle termination event 885703Ssaidi@eecs.umich.edu// 895703Ssaidi@eecs.umich.eduvoid 905703Ssaidi@eecs.umich.eduCountedExitEvent::process() 915703Ssaidi@eecs.umich.edu{ 925703Ssaidi@eecs.umich.edu if (--downCounter == 0) { 935703Ssaidi@eecs.umich.edu new SimExitEvent(cause, 0); 945703Ssaidi@eecs.umich.edu } 955703Ssaidi@eecs.umich.edu} 965703Ssaidi@eecs.umich.edu 975703Ssaidi@eecs.umich.edu 985703Ssaidi@eecs.umich.educonst char * 995703Ssaidi@eecs.umich.eduCountedExitEvent::description() 100{ 101 return "counted exit"; 102} 103 104#ifdef CHECK_SWAP_CYCLES 105new CheckSwapEvent(&mainEventQueue, CHECK_SWAP_CYCLES); 106#endif 107 108void 109CheckSwapEvent::process() 110{ 111 /* Check the amount of free swap space */ 112 long swap; 113 114 /* returns free swap in KBytes */ 115 swap = procInfo("/proc/meminfo", "SwapFree:"); 116 117 if (swap < 1000) 118 ccprintf(cerr, "\a\a\aWarning! Swap space is low (%d)\n", swap); 119 120 if (swap < 100) { 121 cerr << "\a\aAborting Simulation! Inadequate swap space!\n\n"; 122 new SimExitEvent("Lack of swap space"); 123 } 124 125 schedule(curTick + interval); 126} 127 128const char * 129CheckSwapEvent::description() 130{ 131 return "check swap"; 132} 133 134// 135// handle progress event: print message and reschedule 136// 137void 138ProgressEvent::process() 139{ 140 DPRINTFN("ProgressEvent\n"); 141 // reschedule for next interval 142 schedule(curTick + interval); 143} 144 145 146const char * 147ProgressEvent::description() 148{ 149 return "progress message"; 150} 151