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/*****************************************************************************
Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
more contributor license agreements. See the NOTICE file distributed
with this work for additional information regarding copyright ownership.
Accellera licenses this file to you under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with the
License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied. See the License for the specific language governing
permissions and limitations under the License.
*****************************************************************************/
/*****************************************************************************
register_phase_callbacks.cpp -- Test for (un)registering dynamic callbacks
Note: requires simulation phase callback support enabled in the kernel
SC_ENABLE_SIMULATION_PHASE_CALLBACKS / --enable-phase-callbacks
Original Author: Philipp A. Hartmann, OFFIS, 2013-05-17
*****************************************************************************/
/*****************************************************************************
MODIFICATION LOG - modifiers, enter your name, affiliation, date and
changes you are making here.
Name, Affiliation, Date:
Description of Modification:
*****************************************************************************/
#include <systemc.h>
#define VERBOSE 1
SC_MODULE(phase_tracer)
{
SC_HAS_PROCESS(phase_tracer);
phase_tracer( sc_module_name nm
= sc_core::sc_gen_unique_name("phase_tracer") )
: cb_count(0), timed_count(), delta_count()
{
SC_METHOD(timed);
SC_METHOD(delta);
sensitive << ev;
old_mask = SC_STATUS_ANY;
cb_mask = register_simulation_phase_callback( SC_STATUS_ANY );
sc_assert( cb_mask == (old_mask & ~SC_ELABORATION & ~SC_RUNNING) );
old_mask = cb_mask;
cb_mask = unregister_simulation_phase_callback(SC_STOPPED);
sc_assert( cb_mask == (old_mask & ~SC_STOPPED) );
old_mask = cb_mask;
cb_mask = register_simulation_phase_callback( SC_UNITIALIZED );
sc_assert( cb_mask == old_mask );
cb_mask = unregister_simulation_phase_callback(SC_UNITIALIZED);
sc_assert( cb_mask == old_mask );
cb_mask = unregister_simulation_phase_callback(SC_RUNNING);
sc_assert( cb_mask == (old_mask & ~SC_END_OF_INITIALIZATION
// & ~SC_END_OF_EVALUATION
& ~SC_END_OF_UPDATE
& ~SC_BEFORE_TIMESTEP) );
old_mask = cb_mask;
cb_mask = unregister_simulation_phase_callback(SC_ELABORATION);
sc_assert( cb_mask == (old_mask & ~SC_BEFORE_END_OF_ELABORATION
& ~SC_END_OF_ELABORATION ) );
old_mask = cb_mask;
cb_mask = unregister_simulation_phase_callback( SC_STATUS_ANY );
sc_assert( cb_mask == SC_UNITIALIZED );
old_mask = cb_mask;
cb_mask = register_simulation_phase_callback( SC_RUNNING );
sc_assert( cb_mask == ( SC_END_OF_INITIALIZATION
// | SC_END_OF_EVALUATION
| SC_END_OF_UPDATE | SC_BEFORE_TIMESTEP ) );
cb_mask = register_simulation_phase_callback( SC_STATUS_ANY );
sc_assert( cb_mask == (SC_STATUS_ANY & ~SC_ELABORATION & ~SC_RUNNING) );
}
void timed()
{
std::cout
<< sc_get_current_process_handle().name()
<< ": " << sc_time_stamp()
<< ": " << timed_count
<< std::endl;
if( timed_count++ < 5 ) {
next_trigger( 100, SC_NS );
}
if( delta_count < 5 )
ev.notify( SC_ZERO_TIME );
if( timed_count>=6 )
sc_stop();
}
void delta()
{
std::cout
<< sc_get_current_process_handle().name()
<< ": " << sc_time_stamp()
<< ": " << delta_count
<< std::endl;
delta_count++;
}
virtual void simulation_phase_callback()
{
cb_count++;
# if VERBOSE
{
std::string ttp;
if( !sc_pending_activity() ) {
ttp = "MAX";
} else {
ttp = sc_time_to_pending_activity().to_string();
}
std::cout << name()
<< ": phase callback "
<< sc_get_status()
<< ": " << sc_time_stamp()
<< " -> pending activity: " << ttp
<< std::endl;
}
# endif
sc_assert( cb_mask & sc_get_status() );
switch( sc_get_status() )
{
case SC_END_OF_UPDATE:
case SC_BEFORE_TIMESTEP:
if( timed_count == 3 )
ev.cancel();
if( delta_count == 2 )
ev.notify(SC_ZERO_TIME);
if( timed_count == 2 )
ev.notify( 1, SC_NS );
break;
default:
// do nothing
break;
}
}
~phase_tracer()
{ print_static_phase_stats( "[destructor]" ); }
void print_static_phase_stats( const char* phase )
{
#if VERBOSE
std::cout << name()
<< ": " << phase << ": "
<< cb_count << " callbacks called."
<< std::endl;
#endif
}
private:
virtual void before_end_of_elaboration()
{
sc_assert( sc_get_status() == SC_BEFORE_END_OF_ELABORATION );
print_static_phase_stats( "before_end_of_elaboration" );
}
virtual void end_of_elaboration()
{
sc_assert( sc_get_status() == SC_END_OF_ELABORATION );
print_static_phase_stats( "end_of_elaboration" );
}
virtual void start_of_simulation()
{
sc_assert( sc_get_status() == SC_START_OF_SIMULATION );
print_static_phase_stats( "start_of_simulation" );
// ignored - issues warning
register_simulation_phase_callback( SC_ELABORATION );
}
virtual void end_of_simulation()
{
sc_assert( sc_get_status() == SC_END_OF_SIMULATION );
print_static_phase_stats( "end_of_simulation" );
}
private:
phase_cb_mask cb_mask, old_mask;
sc_dt::uint64 cb_count, timed_count, delta_count;
sc_event ev;
};
int sc_main(int, char*[])
{
// don't run without callbacks enabled
sc_report_handler::set_actions( "simulation phase callbacks not enabled"
, SC_DEFAULT_ERROR_ACTIONS );
phase_tracer pt;
sc_start();
return 0;
}
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