test1.cpp revision 12855:588919e0e4aa 
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19
20//*****************************************************************************
21//
22//  test01.cpp -- test self disables on processes
23//
24//  Original Author: Andy Goodrich, Forte Design Systems, Inc.
25//
26//  CVS MODIFICATION LOG - modifiers, enter your name, affiliation, date and
27//  changes you are making here.
28//
29// $Log: test1.cpp,v $
30// Revision 1.2  2009/07/28 01:09:48  acg
31//  Andy Goodrich: replacement test using standardized environment.
32//
33//*****************************************************************************
34
35#define SC_INCLUDE_DYNAMIC_PROCESSES
36#include "systemc.h"
37
38enum my_process_states {
39    ST_DISABLED,
40    ST_NORMAL,
41    ST_SUSPENDED
42};
43
44inline ostream& time_stamp( ostream& os )
45{
46    os << dec << sc_time_stamp() << "[" << sc_delta_count() << "]: ";
47    return os;
48}
49
50SC_MODULE(top) {
51    // constructor:
52
53    SC_CTOR(top) :
54        m_state_cthread0(ST_NORMAL),
55	m_state_method0(ST_NORMAL),
56        m_state_thread0(ST_NORMAL)
57    {
58        SC_THREAD(stimulator0);
59
60        SC_CTHREAD( target_cthread0, m_clk.pos() );
61        m_target_cthread0 = sc_get_current_process_handle();
62
63        SC_METHOD(target_method0);
64	sensitive << m_clk.pos();
65        m_target_method0 = sc_get_current_process_handle();
66
67        SC_THREAD(target_thread0);
68        m_target_thread0 = sc_get_current_process_handle();
69    }
70
71    // processes:
72
73    void stimulator0();
74    void target_cthread0();
75    void target_method0();
76    void target_thread0();
77
78    // Storage:
79
80    sc_in<bool>       m_clk;
81    int               m_state_cthread0;
82    int               m_state_method0;
83    int               m_state_thread0;
84    sc_process_handle m_target_cthread0;
85    sc_process_handle m_target_method0;
86    sc_process_handle m_target_thread0;
87};
88
89void top::stimulator0()
90{
91    const char* name = "stimulator";
92    wait(10, SC_NS);
93    cout << endl;
94    time_stamp(cout) << name << ": enabling target_cthread0" << endl;
95    cout << endl;
96    m_state_cthread0 = ST_NORMAL;
97    m_target_cthread0.enable();
98    wait(10, SC_NS);
99
100    cout << endl;
101    time_stamp(cout) << name << ": enabling target_method0" << endl;
102    cout << endl;
103    m_state_method0 = ST_NORMAL;
104    m_target_method0.enable();
105    wait(10, SC_NS);
106
107    cout << endl;
108    time_stamp(cout) << name << ": enabling target_thread0" << endl;
109    cout << endl;
110    m_state_thread0 = ST_NORMAL;
111    m_target_thread0.enable();
112    ::sc_core::wait(1000, SC_NS);
113
114    cout << endl;
115    time_stamp(cout) << name << ": terminating" << endl;
116    sc_stop();
117}
118
119void top::target_cthread0()
120{
121    int         i;
122    const char* name = "target_cthread0";
123
124    time_stamp(cout) << name  << ": starting" << endl;
125    time_stamp(cout) << name  << ": issuing self disable" << endl;
126    m_state_cthread0 = ST_DISABLED;
127    m_target_cthread0.disable();
128    time_stamp(cout) << name  << ": after issuing self disable" << endl;
129    cout << endl;
130    for ( i = 0; i < 100; i++ )
131    {
132        wait();
133	if ( m_state_cthread0 == ST_DISABLED )
134	{
135	    time_stamp(cout) << name  << ": ERROR should not see this" << endl;
136	}
137    }
138    time_stamp(cout) << name  << ": terminating" << endl;
139}
140
141void top::target_method0()
142{
143    const char* name = "target_method0";
144    static int  state = 0;
145    switch( state )
146    {
147      case 0:
148        time_stamp(cout) << name  << ": starting" << endl;
149        time_stamp(cout) << name  << ": issuing self disable" << endl;
150	m_state_method0 = ST_DISABLED;
151        m_target_method0.disable();
152        time_stamp(cout) << name  << ": after issuing self disable" << endl;
153        cout << endl;
154        break;
155      default:
156	if ( m_state_method0 == ST_DISABLED )
157	{
158	    time_stamp(cout) << name  << ": ERROR should not see this" << endl;
159	}
160        break;
161      case 99:
162        time_stamp(cout) << name  << ": terminating" << endl;
163        break;
164    }
165    state++;
166}
167
168void top::target_thread0()
169{
170    const char* name = "target_thread0";
171
172    time_stamp(cout) << name  << ": starting" << endl;
173    time_stamp(cout) << name  << ": issuing self disable" << endl;
174    m_state_thread0 = ST_DISABLED;
175    m_target_thread0.disable();
176    time_stamp(cout) << name  << ": after issuing self disable" << endl;
177    cout << endl;
178
179    // We wait a long enough time that our event will not occur until
180    // after we are re-enabled. Otherwise this thread will just go away
181    // quietly when the disable cancels the event.
182
183    ::sc_core::wait(80, SC_NS);
184    if ( m_state_thread0 == ST_DISABLED )
185    {
186	time_stamp(cout) << name  << ": ERROR should not see this" << endl;
187    }
188    time_stamp(cout) << name  << ": terminating" << endl;
189}
190
191int sc_main (int argc, char *argv[])
192{
193    sc_clock clock( "clock", 1.0, SC_NS );
194
195    top* top_p = new top("top");
196    top_p->m_clk(clock);
197
198    sc_start();
199    return 0;
200}
201
202