我正在创建一个简单的omnet ++模拟。部分模拟使用称为数据包生成器的简单模块。它将成为名为 complete 的项目中复合模块的一部分。但是,当我尝试在复合模块中使用 packetGenerator 时,我在尝试运行模拟时收到以下错误消息:
网络设置期间模块(omnetpp :: cModule)net.tx(id = 2)出错:Class" packetGenerator"找不到 - 也许它的代码没有链接,或者类没有在Register_Class()中注册,或者在模块和通道的情况下,使用Define_Module()/ Define_Channel()。
是的,我进入了属性 - >项目引用并引用了 packetGenerator 项目(如图所示)。我也称为Define_Module(packetGenerator),如 packetGenerator.cc
中所示我已经推断出问题发生在复合模块的子模块部分,但我不知道如何解决这个问题。任何帮助表示赞赏。如果我在 TransmitterNode 复合模块中省略了 packetGenerator 子模块,那么模拟运行正常(并且什么都不做,因为还没有功能)。
packetGenerator.cc (在项目 packetGenerator 中)
#include <stdio.h>
#include <string.h>
#include <omnetpp.h>
#include <AppMessage_m.h>
using namespace omnetpp;
//Simple module responsible for continuously generating AppMessage messages
class packetGenerator: public cSimpleModule {
private:
cMessage* event;
int seqno;
int senderId;
public:
packetGenerator();
virtual ~packetGenerator();
protected:
virtual void initialize() override;
virtual void handleMessage(cMessage *msg) override;
virtual AppMessage* generateMessage();
};
Define_Module(packetGenerator);
packetGenerator::packetGenerator() {
event = nullptr;
seqno = 0;
}
packetGenerator::~packetGenerator() {
cancelAndDelete(event);
}
void packetGenerator::initialize() {
senderId = par("nodeIdentifier");
event = new cMessage("event");
scheduleAt(0.0, event);
}
void packetGenerator::handleMessage(cMessage* msg) {
WATCH(seqno);
//Go here when the new message is scheduled to be sent (after the delay)
if (msg == event) {
send(generateMessage(), "out");
simtime_t delay = par("iatDistribution");
scheduleAt(simTime() + delay, event);
}
//If we receive a message that isn't our timer-expiry message (e.g. from the MAC), go here
else {
AppMessage* appmsg = check_and_cast<AppMessage*>(msg);
EV << "Message received" << endl;
EV << "Message kind: " << msg->getKind() << endl;
delete appmsg;
}
}
AppMessage* packetGenerator::generateMessage() {
simtime_t timeStamp = simTime();
int sequenceNumber = seqno;
seqno++;
int msgSize = par("messageSize");
char messageName[30];
sprintf(messageName, "Message from %d", senderId);
AppMessage* msg = new AppMessage(messageName);
msg->setTimeStamp(timeStamp);
msg->setSenderId(senderId);
msg->setSequenceNumber(sequenceNumber);
msg->setMsgSize(msgSize);
return msg;
}
net.ned (项目内完成)
package complete;
import packetgenerator.packetGenerator;
module TransmitterNode
{
parameters:
int nodeIdentifier; //These need to be unique in the simulation
double nodeXPosition;
double nodeYPosition;
@display("bgb=468,188;i=device/cellphone");
gates:
submodules:
packetGenerator: packetGenerator {
@display("p=79,90;i=block/source");
}
connections:
}
network net
{
submodules:
tx: TransmitterNode;
connections:
}
答案 0 :(得分:2)
项目packetGenerator
必须构建为共享库,并选中Export this shared/static library for other projects
|中的复选框Project
。 Properties
| OMNeT++
| Makemake
|选择root或src目录| Options...
| Target
。
答案 1 :(得分:0)
我有同样的问题。发现软件包错误后已解决。就像您使用的是“包完成”一样,也许这是一个问题。如果发现像“ complete.linklayer。**”之类的错误,则可以在错误窗口中看到,因此,可能需要更改错误中提到的包完整和建议的实际需要的包。我认为,按照您的问题,您也有同样的问题。我只是在说我的经历。让我们尝试一下。