同时从所有节点发送消息 [英] send messages from all nodes at the same time

问题描述

以下是.ned文件

simple computer
{
    parameters:

    gates:
        input in1;
        output out1;
        input in2;
        output out2;

}

//
// TODO documentation
//
network Network
{
    @display("bgb=538,302");
    submodules:
        A: computer {
            @display("p=30,88");
        }
        B: computer {
            @display("p=344,96");
        }
        C: computer {
            @display("p=209,199");
        }
    connections:

        A.out1 --> B.in1;
        B.out1 --> A.in1;

        A.out2 --> C.in1;
        C.out1 --> A.in2;

        C.out2 --> B.in2;
        B.out2 --> C.in2;
}

以下是.cc源文件

#include <string.h>
#include <omnetpp.h>
#include <string>

class computer: public cSimpleModule
{
  public:


    virtual void initialize();
    virtual void handleMessage(cMessage *msg);
};
//----------------------------------------------------------------------

Define_Module(computer);
void computer::initialize()
{

    if (strcmp("A", getName()) == 0)
    {

       send(msg, "out1");
       cMessage *copy = (cMessage *) msg->dup();
       send(copy, "out2");
    }
}


void computer::handleMessage(cMessage *msg)
{


}

现在我的问题是，在初始化函数中，节点A向B和C发送消息.此后，我想从节点B发送消息，从节点B向节点A和C发送消息.类似地，在此之后，我想从节点C到A和B(例如距离矢量协议)我该怎么做?

Now my question is that in the initialize function node A sends message to B and C. After that i want to send message from node B , FROM NODE B to node A and C. Similarly after that i want to send message from node C to A and B (like distance vector protocol) How can i do that?

此外，第二个问题是我如何同时从所有节点向邻居节点发送消息，即A向B，C发送消息； B向A，c发送消息； C发送到A，B.全部，A B C同时发送消息吗? 让我让它更简洁明了. A向B发送消息如下

Moreover the second question is that how can i send message from all the nodes at the same time to the neighbor nodes i-e A sending message to B,C ; B sending message to A,c ; C sending to A,B. All, A B C sending messages at the same time? Let me make it more brief and clear. A sends message to B as follows

以下是.cc源文件

#include <string.h>
#include <omnetpp.h>
#include <string>

class computer: public cSimpleModule
{
  public:


    virtual void initialize();
    virtual void handleMessage(cMessage *msg);
};
//----------------------------------------------------------------------

Define_Module(computer);
void computer::initialize()
{

    if (strcmp("A", getName()) == 0)
    {

       send(msg, "out1");

    }
}

handleMessage(cMessage * msg) { 现在如何从C到A发送消息 }

handleMessage(cMessage *msg) { Now how to send message from C TO A }

A至B 从C到A?

推荐答案

在这样做之前，您必须回答此问题，C如何才能知道B收到了这样的味精?您有2个解决方案:

Before doing so, you must answer to this questio, how C can know that B received such msg ? You have 2 solutions:

从网络角度来看的
1. 逻辑解决方案:在这样做之前 您必须向C发送一条消息，以阻止他们接收 这样的味精
2. 较少逻辑的解决方案:通过检查B处的bool值 C模块中的模块，并决定此时发送一条消息， 或通过在B处创建一个信号并使用它来更好地使用信号 C模块(请查看omnet ++ doc).

1. Logic solution from a networking point of view: Before doing so you have to sent a message to C preventing them of the reception of such msg
2. Less logical solution: By checking a bool value at B module from C module, and decide at this moment to send a message, or better use signals by creating one at B and suscribing to it the C module (check omnet++ doc).

祝你好运

这篇关于同时从所有节点发送消息的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！