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LT blocking. Synch point


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Hi everyone! I have model: two different initiators send data to one target.
My allocate code below

#define SC_INCLUDE_DYNAMIC_PROCESSES

#include <systemc.h>
#include <tlm.h>
#include <tlm_utils\simple_initiator_socket.h>
#include <tlm_utils\simple_target_socket.h>

SC_MODULE(Initiator) {

	tlm_utils::simple_initiator_socket<Initiator> socket;
	
	void process() {
		tlm::tlm_generic_payload *trans = new tlm::tlm_generic_payload;
		sc_time delay = sc_time(10, SC_NS);
		
		//tlm::tlm_command cmd = (tlm::tlm_command) (rand()%2);
	

		for(int i =0 ; i < 100; i++) {
			trans->set_data_ptr(reinterpret_cast<unsigned char*>(&i));
			socket->b_transport(*trans, delay);			
		}
	}

	SC_CTOR(Initiator) {
		SC_THREAD(process);
	}
};

SC_MODULE(SecondInitiator) {

	tlm_utils::simple_initiator_socket<SecondInitiator> socket;
	
	void process() {
		tlm::tlm_generic_payload *trans = new tlm::tlm_generic_payload;
		sc_time delay = sc_time(10, SC_NS);
		
		for(int i =0 ; i < 100; i++) {
			trans->set_data_ptr(reinterpret_cast<unsigned char*>(&i));
			socket->b_transport(*trans, delay);			
		}
	}

	SC_CTOR(SecondInitiator) {
		SC_THREAD(process);
	}
};

SC_MODULE(Target) {

	tlm_utils::simple_target_socket<Target> socket, socket2;

	virtual void process(tlm::tlm_generic_payload &tx, sc_time& dt) {
	  //This process should start when both initiators will send data
	}

	SC_CTOR(Target) {
		socket.register_b_transport(this, &Target::process);
		socket2.register_b_transport(this, &Target::process);
	}
};

SC_MODULE(Top) {
	Initiator		*initiator;
	SecondInitiator *secondInitiator;
	Target			*target;

	SC_CTOR(Top) {
		initiator			= new Initiator	("initiator");
		target				= new Target	("target");
		secondInitiator		= new SecondInitiator("second initiator");

		initiator->socket.bind(target->socket);
		secondInitiator->socket.bind(target->socket2);
	}
};

int sc_main(int argc, char* argv[]) {
  Top top("top");
  sc_start();

  getchar();
  return 0;
}

Question:
How to implement synch point - start target behavior process only when both initiator will send the data. Target should has only one behavioral process

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