test10.cpp revision 12855:588919e0e4aa 
1/*****************************************************************************
2
3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements.  See the NOTICE file distributed
5  with this work for additional information regarding copyright ownership.
6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License.  You may obtain a copy of the License at
9
10    http://www.apache.org/licenses/LICENSE-2.0
11
12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied.  See the License for the specific language governing
16  permissions and limitations under the License.
17
18 *****************************************************************************/
19
20/*****************************************************************************
21
22  test10.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(sc_event_and_list&)
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    next_trigger(10, SC_NS);
75    data = i;
76    cout <<"simulation time" << ":" << sc_time_stamp()<<"    ";
77    cout<<"writting "<< data <<" to channel" << endl;
78
79      write_event_2.notify(5, SC_NS);
80      write_event_1.notify(5, SC_NS);
81
82
83    i++;
84  }
85
86  //read from channel
87  void read( ){
88    int j;
89    next_trigger(write_event_1 & write_event_2);
90    j = data;
91    cout <<"simulation time" << ":" << sc_time_stamp();
92    cout<<"    reading "<<j<<" from channel" << endl;
93  }
94
95  private:
96  int data;
97  sc_event write_event_1, write_event_2;
98
99};
100
101//source module
102SC_MODULE(mod_a)
103{
104  sc_port<write_if> out;
105
106  void write( )
107  {
108    out->write();
109  }
110
111  SC_CTOR( mod_a ){
112
113    SC_METHOD(write);
114  }
115};
116
117//sink module
118SC_MODULE(mod_b)
119{
120  sc_port<read_if> input;
121  int i;
122
123  void read( )
124  {
125   input->read();
126  }
127
128  SC_CTOR( mod_b ){
129
130    SC_METHOD(read);
131  }
132};
133
134
135int sc_main(int, char*[] )
136{
137  channel a("a");
138  mod_a modul_a("modul_a");
139  mod_b modul_b("modul_b");
140  modul_a.out(a);
141  modul_b.input(a);
142
143  sc_start(60, SC_NS);
144  return 0 ;
145}
146