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;

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40#include "sim/stats.hh"
41
42using namespace std;
43
44//
45// handle termination event
46//
47void
48SimExitEvent::process()
48SimLoopExitEvent::process()
49{
50 // This event does not autodelete because exitNow may be called,
51 // and the function will never be allowed to finish.
52 if (theQueue() == &mainEventQueue) {
53 string _cause = cause;
54 int _code = code;
50 // if this got scheduled on a different queue (e.g. the committed
51 // instruction queue) then make a corresponding event on the main
52 // queue.
53 if (theQueue() != &mainEventQueue) {
54 exitSimLoop(cause, code);
55 delete this;
56 exitNow(_cause, _code);
57 } else {
58 new SimExitEvent(cause, code);
59 delete this;
56 }
57
58 // otherwise do nothing... the IsExitEvent flag takes care of
59 // exiting the simulation loop and returning this object to Python
60}
61
62
63const char *
65SimExitEvent::description()
64SimLoopExitEvent::description()
65{
67 return "simulation termination";
66 return "simulation loop exit";
67}
68
69void
70exitSimLoop(Tick when, const std::string &message, int exit_code)
71{
72 new SimLoopExitEvent(when, message, exit_code);
73}
74
75void
76exitSimLoop(const std::string &message, int exit_code)
77{
78 exitSimLoop(curTick, message, exit_code);
79}
80
81//
82// constructor: automatically schedules at specified time
83//
84CountedExitEvent::CountedExitEvent(EventQueue *q, const std::string &_cause,
85 Tick _when, int &_downCounter)
86 : Event(q, Sim_Exit_Pri),
87 cause(_cause),
88 downCounter(_downCounter)

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96
97//
98// handle termination event
99//
100void
101CountedExitEvent::process()
102{
103 if (--downCounter == 0) {
93 new SimExitEvent(cause, 0);
104 exitSimLoop(cause, 0);
105 }
106}
107
108
109const char *
110CountedExitEvent::description()
111{
112 return "counted exit";

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125 /* returns free swap in KBytes */
126 swap = procInfo("/proc/meminfo", "SwapFree:");
127
128 if (swap < 1000)
129 ccprintf(cerr, "\a\a\aWarning! Swap space is low (%d)\n", swap);
130
131 if (swap < 100) {
132 cerr << "\a\aAborting Simulation! Inadequate swap space!\n\n";
122 new SimExitEvent("Lack of swap space");
133 exitSimLoop("Lack of swap space");
134 }
135
136 schedule(curTick + interval);
137}
138
139const char *
140CheckSwapEvent::description()
141{

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