我正在研究 worm_sim 模拟器、ubuntu、gcc、codeblocks IDE
traffic_source.h 文件
class Traffic_source : public Buffer_owner, public Connector, public Addressee{
private:
static unsigned int id_base;
unsigned int id;
unsigned int packet_size;
unsigned int flit_size;
double packet_generating_rate;
int pkt_id;
traffic_source_state ts_state;
double* packet_to_destination_rate;
Traffic_mode traffic_mode;
int period; // period for packet generation using trace_file
ifstream trace_file;
int trace_file_loop_cnt; // how many times we have gone over the trace file so far
bool trace_file_empty;
ofstream trace_dump; // trace file to dump out
typedef struct Message {
int timestamp;
unsigned int destination;
unsigned int size;
} Message, *pMessage;
Message pre_fetched_message;
bool get_next_message(Message & msg);
unsigned int get_destination_uniform(void) const;
unsigned int get_destination_transpose1(void) const;
unsigned int get_destination_transpose2(void) const;
unsigned int get_destination_hotspot(void) const;
unsigned int get_destination_customized(void) const;
void generate_a_packet(unsigned int dst_id);
void generate_packets(const Message & rec);
public:
Traffic_source(Position p, int buf_sz);
~Traffic_source();
bool can_send(void) const;
bool can_receive(void) const { return false; }
bool send(void);
bool receive(class Flit * a_flit) { return false; }
class Connector * get_receiver(void) const;
static void reset_id_base(void) { id_base = 0; }
void tick(void);
/* traffic control routines */
void set_packet_generating_rate(double r);
void set_packet_to_destination_rate(unsigned int dst_id, double rate);
double get_packet_to_destination_rate(unsigned int dst_id) const;
double get_total_packet_injection_rate(void) const;
int set_trace_file(char * file_name);
bool has_trace_file(void) { return (trace_file.is_open()); }
int get_id(void) const { return id; }
};
交通源.cpp
Traffic_source::Traffic_source(Position p, int buf_sz) : Buffer_owner(buf_sz), Addressee(p) {
id = id_base ++;
packet_generating_rate = param.packet_generating_rate;
packet_size = param.flits_per_packet;
flit_size = param.flit_size;
traffic_mode = param.traffic_mode;
period = 0;
packet_to_destination_rate = 0;
pkt_id = 0;
ts_state = OFF_
if (param.dump_traffic_source_trace) {
char file_name[20];
sprintf(file_name, "%d.trace", id);
trace_dump.open(file_name);
if (!trace_dump.is_open() || !trace_dump.good()) {
cerr << "Error in opening file " << file_name << " for trace dumping" << endl;
exit(-1);
}
trace_dump << "PERIOD\t" << param.simulation_length << endl;
trace_dump << "#Trace file dumped by worm_sim from node " << id << endl;
trace_dump << "#Folloing lines are with format as:" << endl
<< "#timestamp\t" << "destination\t" << "message_size(bits):" << endl;
}
}
bool Traffic_source::can_send(void) const
{
int router_id=get_id();
unsigned int local_availability;
pRouter a_router= param.network->get_router(router_id);
local_availability=a_router->get_port_availability(0);
//cout<<local_availability<<endl;
if (buffer.is_empty())
return false;
if(local_availability <= 0)
{
packet_generating_rate = 0; //error: assignment of member ‘Traffic_source::packet_generating_rate’ in read-only object|
set_packet_generating_rate(0); // error: passing ‘const Traffic_source’ as ‘this’ argument of ‘void Traffic_source::set_packet_generating_rate(double)’ discards qualifiers [-fpermissive]|
return false;
}
// This is somehow trick, we need to verify whether the first flit in the fifo
// is received right in this clock cycle. If so, we can not send it
const Flit * first_flit = buffer.peek_flit();
if (first_flit->arrived_in_this_cycle())
return false;
pConnector receiver = get_receiver();
if (receiver)
return receiver->can_receive();
else
return false;
}
值 packet_generating_rate 不是 const 但是当我尝试直接修改它或使用 set 函数时它会给我错误
packet_generating_rate = 0; //error: assignment of member
‘Traffic_source::packet_generating_rate’ in read-only object|
set_packet_generating_rate(0); // error: passing ‘const Traffic_source’ as ‘this’ argument of ‘void Traffic_source::set_packet_generating_rate(double)’ discards qualifiers [-fpermissive]|
虽然它用于其他文件没有问题,任何建议请