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实现主C ++程序与嵌入式ECL之间的通信

[英]Achieving communication between main c++ program and embedded ECL

原文 2011-06-19 16:36:29 1 1 c++/ lisp/ embedding

I'm trying to extend a c++ 3d simulation I'm working on with a second language (at the moment ECL) to dynamically influence it at runtime. 我正在尝试使用第二种语言（目前为ECL）扩展我正在使用的c ++ 3d仿真，以在运行时动态地影响它。 That is, I want to be able to have a script like this evaluated: (move object xy) that will move "object" to the position (x,y). 也就是说，我希望能够有一个这样的脚本进行评估：（移动对象xy），它将“对象”移动到位置（x，y）。

The problem is that in order for this to work the ECL environment needs to call some c++ member function of eg an instance of the corresponding node of the object to move it. 问题是，为了使它起作用，ECL环境需要调用某些c ++成员函数（例如，对象的相应节点的实例）来移动它。 Now I know how to embed for example ECL and have arbitrary code evaluated and also how to call plain c functions from some library, but I don't see how I can tell the ECL environment about specific instances and how to call their methods. 现在，我知道如何嵌入例如ECL并评估任意代码，以及如何从某个库中调用纯c函数，但是我看不到如何向ECL环境告知特定实例以及如何调用其方法。

I suppose this a common thing (if not with ECL) to do and yet I haven't been able to find any information how to do this when the main program is written in c++ and uses some OO. 我想这是很平常的事情（如果没有使用ECL的话），但是当主程序用c ++编写并使用一些OO时，我仍然找不到任何信息来做到这一点。

1 个解决方案

You could make a command line interface for the C++ application and then communicate via pipe. 您可以为C ++应用程序创建命令行界面，然后通过管道进行通信。 That is what I do. 那就是我所做的。 Its straightforward and for me it is fast enough. 它简单明了，对我来说它足够快。