如何在 omnet++6 中从另一条消息继承一条消息而不会出现错误？

Question

我有一条来自 cPacket 的消息（myJob）：

packet MyJob  extends omnetpp::cPacket
{
    int someField;
    string anotherField;
    double arrayField1[];
    double arrayField2[10];
}

我的目标是创建另一条从 MyJob 派生的消息。为此，我从 Project->New->Messafe Definition(msg) I select "Message that subclasses from a message defined in another .msg file" 选项创建了另一条消息。我在 return:

中得到了这个

cplusplus {{
#include "SomeMessage_m.h"
}}
packet SomeMessage;

packet MyMessage extends SomeMessage {
    int someField;
}

我尝试编译时出现错误，但这是可以理解的，因为没有 SomeMessage，没关系。比起我把 SomeMessages 改成 MyJobs

cplusplus {{
#include "MyJob_m.h"
}}
packet MyJob;

//
// TODO generated message class
//
packet MyMessage extends MyJob {
    int someField;
}

但我得到了与SomeMessage相同的错误。

'MyMessage': unknown base class 'MyJob' MyMessage.msg

MyMessage: base class is not a packet (must be derived from omnetpp::cPacket)   

Type declarations are not needed with imports, try invoking the message compiler in legacy (4.x) mode using the --msg4 option

如何从另一个继承消息？

Answer 1

OMNeT++ 6.0 中数据包的正确定义应该如下所示：

// myjob.msg
packet MyJob {
  int someField;
  string anotherField;
  double arrayField1[];
  double arrayField2[10];
}

要创建从上述消息派生的数据包，应该这样写：

// mymessage.msg

import MyJob;

packet MyMessage extends MyJob {
  int someField;
}

请注意，根据 OMNeT++ 模拟手册，基本消息的文件名必须与 import 的参数相匹配：

The import’s parameter is interpreted as a relative file path (by replacing dots with slashes, and appending .msg), which is searched for in folders listed in the message import path, much like C/C++ include files are searched for in the compiler’s include path

如何在 omnet++6 中从另一条消息继承一条消息而不会出现错误？

How can I inherit a message from another message in omnet++6 without getting an error?

omnet++