test02.cpp revision 12855:588919e0e4aa 
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20/*****************************************************************************
21
22  test02.cpp --
23
24  Original Author: Ucar Aziz, Synopsys, Inc., 2002-02-15
25                   Martin Janssen, Synopsys, Inc., 2002-02-15
26
27 *****************************************************************************/
28
29/*****************************************************************************
30
31  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
32  changes you are making here.
33
34      Name, Affiliation, Date:
35  Description of Modification:
36
37 *****************************************************************************/
38
39//test of sc_prim_channel::next_trigger(const sc_event&)
40
41#include <systemc.h>
42
43//write and read interfaces
44class write_if : virtual public
45sc_interface
46 {
47  public:
48   virtual void write() = 0;
49};
50
51class read_if : virtual public
52sc_interface
53{
54 public:
55  virtual void read( ) = 0;
56};
57
58// channel implements write_if and read_if interfaces
59class channel :
60  public sc_channel,
61  public write_if,
62  public read_if
63{
64
65  public :
66
67  //constructor
68  channel(sc_module_name name):sc_channel(name)  , data(0)
69  { }
70
71  //write to channel
72  void write(){
73    static int i = 0;
74    if(i < 10){
75    next_trigger(read_event);
76    data = i;
77    cout<<"writting "<< data <<" to channel";
78    i++;
79    cout<<" and notifying write_event" << endl;
80    write_event.notify();
81  }
82  }
83
84  //read from channel
85  void read( ){
86    int j;
87    next_trigger(write_event);
88    j = data;
89    cout<<"reading  "<<j<<" from channel";
90    cout<<" and notifying read_event" << endl;
91    read_event.notify();
92  }
93
94  private:
95  int data;
96  sc_event write_event, read_event;
97
98};
99
100//source module
101SC_MODULE(mod_a)
102{
103  sc_port<write_if> out;
104
105  void write( )
106  {
107    out->write();
108  }
109
110  SC_CTOR( mod_a ){
111
112    SC_METHOD(write);
113  }
114};
115
116//sink module
117SC_MODULE(mod_b)
118{
119  sc_port<read_if> input;
120  int i;
121
122  void read( )
123  {
124   input->read();
125  }
126
127  SC_CTOR( mod_b ){
128
129    SC_METHOD(read);
130  }
131};
132
133
134int sc_main(int, char*[] )
135{
136  channel a("a");
137  mod_a modul_a("modul_a");
138  mod_b modul_b("modul_b");
139  modul_a.out(a);
140  modul_b.input(a);
141
142  sc_start(10, SC_NS);
143  return 0 ;
144}
145