xref: /gem5/src/systemc/tests/systemc/1666-2011-compliance/suspend_resume/suspend_resume.cpp

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// suspend_resume.cpp -- test for
//
//  Original Author: John Aynsley, Doulos, Inc.
//
// MODIFICATION LOG - modifiers, enter your name, affiliation, date and
//
// $Log: suspend_resume.cpp,v $
// Revision 1.2  2011/05/08 19:18:46  acg
//  Andy Goodrich: remove extraneous + prefixes from git diff.
//

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include <systemc>

using namespace sc_core;
using std::cout;
using std::endl;

struct M1: sc_module
{
  M1(sc_module_name _name)
  {
    SC_THREAD(ticker);
    SC_THREAD(calling);
    SC_THREAD(target);
      t = sc_get_current_process_handle();
  }

  sc_process_handle t;
  sc_event ev;

  void ticker()
  {
    for (;;)
    {
      wait(10, SC_NS);
      ev.notify();
    }
  }

  void calling()
  {
    wait(15, SC_NS);
    // Target runs at time 10 NS due to notification

    t.suspend();
    wait(10, SC_NS);
    // Target does not run at time 20 NS while suspended

    t.resume();
    // Target runs at time 25 NS when resume is called

    wait(10, SC_NS);
    // Target runs at time 30 NS due to notification

    t.disable();
    wait(10, SC_NS);
    // Target does not run at time 40 NS while disabled

    t.enable();
    // Target does not run at time 45 NS when enable is called

    wait(10, SC_NS);
    // Target runs at time 50 NS due to notification

    sc_stop();
  }

  void target()
  {
    for (;;)
    {
      wait(ev);
      cout << "Target awoke at " << sc_time_stamp() << endl;
    }
  }

  SC_HAS_PROCESS(M1);
};

int sc_main(int argc, char* argv[])
{
  M1 m("m");

  sc_start();

  cout << endl << "Success" << endl;
  return 0;
}