xref: /gem5/src/systemc/tests/systemc/kernel/process_control/test08/test08.cpp

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/*****************************************************************************

  test08.cpp -- Test of suspend and asynchronous reset interaction

  Original Author: Andy Goodrich, 14 Februrary 2011

 *****************************************************************************/

/*****************************************************************************

  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
  changes you are making here.

      Name, Affiliation, Date:
  Description of Modification:

 *****************************************************************************/
// $Log: test08.cpp,v $
// Revision 1.4  2011/04/02 00:08:36  acg
//  Andy Goodrich: turn off corner case error checking.
//
// Revision 1.3  2011/03/07 19:32:16  acg
//  Andy Goodrich: addition to set sc_core::sc_allow_process_control_corners
//  to true so that this test avoids corner case error messages.
//
// Revision 1.2  2011/02/20 13:44:06  acg
//  Andy Goodrich: updates for IEEE 1666 2011.
//
// Revision 1.1  2011/02/14 16:59:29  acg
//  Andy Goodrich: first check in.
//

#include "systemc.h"

sc_event event1;
sc_process_handle t;
SC_MODULE(DUT)
{
    SC_CTOR(DUT)
    {
        SC_THREAD(thread);
	t = sc_get_current_process_handle();
    }
    void thread()
    {
        cout << sc_time_stamp() << " target: initializing" << endl;
        for (;;)
        {
            wait(event1);
	    cout << sc_time_stamp() << " target: awoke" << endl;
        }
    }
};

SC_MODULE(TB)
{
    SC_CTOR(TB)
    {
        SC_THREAD(tb_thread);
    }
    void tb_thread()
    {
	wait( 10, SC_NS );
	cout << sc_time_stamp() << " tb: firing event " << endl;
	event1.notify();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: suspending target " << endl;
        t.suspend();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: firing event while target suspended"
	     << endl;
	event1.notify();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: resetting target " << endl;
	t.reset();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: resuming target" << endl;
	t.resume();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: 10ns after resume" << endl;
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: firing event again" << endl;
	event1.notify();
	wait( 10, SC_NS );

	cout << sc_time_stamp() << " tb: stopping" << endl;
	sc_stop();
    }
};

int sc_main(int argc, char* argv[])
{
    sc_core::sc_allow_process_control_corners = true;
    DUT             dut("dut");
    TB              tb("tb");

    sc_core::sc_allow_process_control_corners = true;
    sc_start();

    cout << "Program completed" << endl;
    return 0;
}