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with this work for additional information regarding copyright ownership.
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/*****************************************************************************
simulation_callbacks.cpp -- Test of simulation phase 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.
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*****************************************************************************/
#include <systemc.h>
#ifdef BENCHMARK
# include "rusage_timer.h"
# define ROUNDS 20
# define NUM_TIMED_TRIGGERS 2000000
# define NUM_DELTA_TRIGGERS 50
# define VERBOSE 0
#else
# define ROUNDS 2
# define NUM_TIMED_TRIGGERS 10
# define NUM_DELTA_TRIGGERS 1
# define VERBOSE 1
#endif
#ifndef REGISTER_CALLBACKS
# define REGISTER_CALLBACKS 1
#endif
#ifndef EXTRA_METHOD
# define EXTRA_METHOD 0
#endif
#define TIMED_THREAD 1
#if TIMED_THREAD
# define TIMED_WAIT wait
# define TIMED_PROCESS SC_THREAD
#else
# define TIMED_WAIT next_trigger
# define TIMED_PROCESS SC_METHOD
#endif
#if REGISTER_CALLBACKS
//# define CALLBACK_MASK ( SC_END_OF_EVALUATION )
//# define CALLBACK_MASK ( SC_END_OF_UPDATE )
//# define CALLBACK_MASK ( SC_BEFORE_TIMESTEP )
# define CALLBACK_MASK ( SC_END_OF_UPDATE | SC_BEFORE_TIMESTEP )
#else
// SC_RUNNING (for EXTRA_METHOD)
# define CALLBACK_MASK ( SC_RUNNING )
#endif
static const sc_dt::uint64 max_rounds = ROUNDS;
static const sc_dt::uint64 max_timed_triggers = NUM_TIMED_TRIGGERS;
static const sc_dt::uint64 max_delta_triggers = NUM_DELTA_TRIGGERS;
static const sc_time delay(1, SC_NS);
SC_MODULE(phase_tracer)
{
SC_HAS_PROCESS(phase_tracer);
phase_tracer( sc_module_name = sc_core::sc_gen_unique_name("phase_tracer") )
: cb_mask(CALLBACK_MASK), cb_count(0)
{
#if REGISTER_CALLBACKS
cb_mask = register_simulation_phase_callback( CALLBACK_MASK );
#endif
}
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() );
}
~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:
unsigned cb_mask;
sc_dt::uint64 cb_count;
};
SC_MODULE(activities)
{
SC_CTOR(activities)
: timed_count(), delta_count()
{
TIMED_PROCESS(timed);
sensitive << timed_ev;
dont_initialize();
SC_METHOD(delta);
sensitive << delta_ev;
dont_initialize();
#if EXTRA_METHOD
SC_METHOD(extra);
sensitive << timed_ev;
dont_initialize();
#endif
}
void notify_round()
{ timed_ev.notify(SC_ZERO_TIME); }
private:
void timed()
{
# if TIMED_THREAD
while(1)
# endif
{
if( timed_count >= max_timed_triggers ) {
timed_count = 0;
TIMED_WAIT();
} else {
verbose();
++timed_count;
if( max_delta_triggers )
delta_ev.notify(SC_ZERO_TIME);
timed_ev.notify(delay);
TIMED_WAIT();
}
}
}
void delta()
{
++delta_count;
verbose();
if( delta_count >= max_delta_triggers ) {
delta_count = 0;
} else {
delta_ev.notify(SC_ZERO_TIME);
}
}
void extra()
{
if( sc_pending_activity_at_current_time() ) {
pt.simulation_phase_callback();
next_trigger(SC_ZERO_TIME);
} else if (sc_time_to_pending_activity()== sc_max_time()-sc_time_stamp() ) {
next_trigger();
} else {
pt.simulation_phase_callback();
next_trigger(sc_time_to_pending_activity());
}
}
void verbose()
{
#if VERBOSE
std::cout
<< sc_get_current_process_handle().name()
<< ": " << sc_time_stamp()
<< ": " << timed_count << "/" << delta_count
<< std::endl;
#endif
}
private:
phase_tracer pt;
sc_dt::uint64 timed_count, delta_count;
sc_event timed_ev, delta_ev;
};
int sc_main(int, char*[])
{
activities top("top");
sc_start(SC_ZERO_TIME);
for(unsigned i=0; i<max_rounds; ++i)
{
#ifdef BENCHMARK
rusage_timer timer;
#endif
top.notify_round();
sc_start();
#ifdef BENCHMARK
std::cout << timer.to_seconds() << std::endl;
#endif
}
sc_stop();
return 0;
}