method_suspends_itself.cpp revision 12855:588919e0e4aa 
1#define SC_INCLUDE_DYNAMIC_PROCESSES
2
3#include <systemc>
4
5using namespace sc_core;
6using std::cout;
7using std::endl;
8
9struct M5: sc_module
10{
11  M5(sc_module_name _name)
12  {
13    SC_THREAD(ticker);
14    SC_THREAD(calling);
15    SC_METHOD(target);
16      sensitive << ev;
17      dont_initialize();
18      t = sc_get_current_process_handle();
19    suspend_target = false;
20    resume_target = false;
21  }
22
23  sc_process_handle t;
24  sc_event ev;
25  bool suspend_target;
26  bool resume_target;
27
28  void ticker()
29  {
30    for (;;)
31    {
32      wait(10, SC_NS);
33      ev.notify();
34    }
35  }
36
37  void calling()
38  {
39    wait(15, SC_NS);
40    // Target runs at 10 NS
41
42    suspend_target = true;
43    wait(10, SC_NS);
44    // Target runs at 20 NS and suspends itself
45
46    wait(10, SC_NS);
47    // Target does not run at 30 NS
48
49    suspend_target = false;
50    t.resume();
51    // Target runs at 35 NS
52
53    wait(10, SC_NS);
54    // Target runs at 40 NS
55
56    suspend_target = true;
57    resume_target = true;
58    wait(10, SC_NS);
59    // Target runs at 50 NS
60
61    sc_stop();
62  }
63
64  void target()
65  {
66    cout << "Target called at " << sc_time_stamp() << endl;
67    if (suspend_target)
68      t.suspend();
69    if (resume_target)
70    {
71      t.resume();
72      suspend_target = false;
73    }
74  }
75
76  SC_HAS_PROCESS(M5);
77};
78
79int sc_main(int argc, char* argv[])
80{
81  M5 m("m");
82
83  sc_core::sc_allow_process_control_corners = true;
84  sc_start();
85
86  return 0;
87}
88
89