suspend/resume vs wait(e)

[mohitnegi]

hello all ,

i am just started to use sc_process_handler and the suspend/wait  usuage is somewhat similar to wait(e) (ignoring its implementation w.r.t schedular) ...

as i see that from the usuage point of view i can replace suspend/resume any where i have wait(e)  ...

can anyone tell me the difference here ...

[dakupoto]

hello all ,

i am just started to use sc_process_handler and the suspend/wait  usuage is somewhat similar to wait(e) (ignoring its implementation w.r.t schedular) ...

as i see that from the usuage point of view i can replace suspend/resume any where i have wait(e)  ...

can anyone tell me the difference here ...

Hello Sir,

Could you please make your query a bit more concrete ? A simple example, would

be helpful in understanding what exactly the main issue is.

[mohitnegi]

Hello Sir,

Could you please make your query a bit more concrete ? A simple example, would

be helpful in understanding what exactly the main issue is.

#include "systemc.h"

class test : public sc_module {
	public :
	sc_process_handle t ;
	SC_HAS_PROCESS(test);
	test(sc_module_name){
		SC_THREAD(run);
		t = sc_get_current_process_handle();
		SC_THREAD(run2);
	} 
	void run(){
		wait(10,SC_NS);
		wait(5,SC_NS);
		cout<<"T :run2 "<<sc_time_stamp().value()<<endl;
	}

	void run2(){
	    wait(10,SC_NS);
	    t.suspend();
	    wait(20,SC_NS);
	    t.resume();	
	//t.reset();
	}
	
};

int sc_main(int, char**){
	test t("test");
	sc_start();
	return 0;
}

vs

#include "systemc.h"

class test : public sc_module {
	public :
	//sc_process_handle t ;
        sc_event e1,e2;
	SC_HAS_PROCESS(test);
	test(sc_module_name){
		SC_THREAD(run);
		//t = sc_get_current_process_handle();
		SC_THREAD(run2);
	} 
	void run(){
		wait(10,SC_NS);
		wait(5,SC_NS);
                e1.notify(); //here we want to suspend it
                wait(SC_ZERO_TIME);
                wait(e2);   ///here it will resume
		cout<<"T :run2 "<<sc_time_stamp().value()<<endl;
	}

	void run2(){
	    wait(10,SC_NS);
            wait(e1);
	    //t.suspend();
	    wait(20,SC_NS);
            e2.notify();
	    //t.resume();	
	//t.reset();
	}
	
};

int sc_main(int, char**){
	test t("test");
	sc_start();
	return 0;
}

our purpose is same in both cases ...so what is the difference whether i use wait(e) or suspend/resume

[David Black]

Suggest you see http://videos.accellera.org/ieee16662011/index.html