sim_object.hh revision 2665 
1/*
2 * Copyright (c) 2001-2005 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: Steve Reinhardt
29 *          Nathan Binkert
30 */
31
32/* @file
33 * User Console Definitions
34 */
35
36#ifndef __SIM_OBJECT_HH__
37#define __SIM_OBJECT_HH__
38
39#include <map>
40#include <list>
41#include <vector>
42#include <iostream>
43
44#include "sim/serialize.hh"
45#include "sim/startup.hh"
46
47class Serializer;
48
49/*
50 * Abstract superclass for simulation objects.  Represents things that
51 * correspond to physical components and can be specified via the
52 * config file (CPUs, caches, etc.).
53 */
54class SimObject : public Serializable, protected StartupCallback
55{
56  public:
57    struct Params {
58        std::string name;
59    };
60
61  protected:
62    Params *_params;
63
64  public:
65    const Params *params() const { return _params; }
66
67  private:
68    friend class Serializer;
69
70    typedef std::vector<SimObject *> SimObjectList;
71
72    // list of all instantiated simulation objects
73    static SimObjectList simObjectList;
74
75  public:
76    SimObject(Params *_params);
77    SimObject(const std::string &_name);
78
79    virtual ~SimObject() {}
80
81    virtual const std::string name() const { return params()->name; }
82
83    // initialization pass of all objects.
84    // Gets invoked after construction, before unserialize.
85    virtual void init();
86    virtual void connect();
87    static void initAll();
88    static void connectAll();
89
90    // register statistics for this object
91    virtual void regStats();
92    virtual void regFormulas();
93    virtual void resetStats();
94
95    // static: call reg_stats on all SimObjects
96    static void regAllStats();
97
98    // static: call resetStats on all SimObjects
99    static void resetAllStats();
100
101    // static: call nameOut() & serialize() on all SimObjects
102    static void serializeAll(std::ostream &);
103
104    // Methods to drain objects in order to take checkpoints
105    // Or switch from timing -> atomic memory model
106    virtual void drain(Serializer *serializer);
107    virtual void resume() { return;} ;
108    virtual void serializationComplete()
109    { assert(0 && "Unimplemented"); };
110
111#ifdef DEBUG
112  public:
113    bool doDebugBreak;
114    static void debugObjectBreak(const std::string &objs);
115#endif
116
117  public:
118    bool doRecordEvent;
119    void recordEvent(const std::string &stat);
120};
121
122#endif // __SIM_OBJECT_HH__
123