如何在Omnet ++ INET的示例中找到工具.cc文件

Question

I'm a fresh newer studying INET in Omnet now. I try to find out how the INET's examples like tutorial wireless networks work, but there are only ned and ini file in that directory without cc file. So I am very confused how this network works. Anyone can tell me how can i find it ?

Answer 1

There are no C++ files in INET examples because the whole behaviour of every module, protocol, channel, packet etc. used by INET has already been defined in C++ files in src directory. The compiled and ready to use code is present in file src\\libINET.dll (or src/libINET.so for Linux).
To get to know how a protocol was modelled look inside a module and look for simple modules. (In OMNeT++ the behaviour is defined only for simple modules.)
For example:

1. In the examples\\wireless\\lan80211 there is Lan80211.ned . Open it in source (text) format. This network uses (between other things) WirelessHost .
2. Go to declaration of WirelessHost (Hint: select this word and press F3 or click this word holding Ctrl). One can see that WirelessHost inherits from StandardHost and from NodeBase . Moreover: numRadios=1 and mgmtType = "Ieee80211MgmtSTASimplified" .
3. In NodeBase.ned one can see that it uses Ieee80211Nic wlan module by default. The module Ieee80211Nic is defined in src\\inet\\linklayer\\ieee80211\\Ieee80211Nic.ned .
4. Looking inside Ieee80211Nic one can see that it uses Ieee80211Mac (between other things). This is a simple module defined in \\src\\inet\\linklayer\\ieee80211\\mac\\Ieee80211Mac.ned . And its behaviour is defined in \\src\\inet\\linklayer\\ieee80211\\mac\\Ieee80211Mac.cc .

This way one can discover a simple module and its C++ code of every compound module. However, take into account that to understand how the compound module works the connections between simple modules should be considered too.