如何杀死从系统功能调用后台进程 [英] How to kill background process from system function call

问题描述

我怎么能杀死使用C语言系统函数调用执行的后台进程。例如像我有一个编译的应用程序调用fooprocess。然后我想编写一个程序，将执行使用系统功能后台fooprocess应用程序，请您参阅下面的code，

How can I kill a background process that was executed using a system function call in C language. Like for example I have a compiled application call "fooprocess". Then I want to write a program that will execute the fooprocess application in the background using the system function, please kindly see below the code,

const char app[] = "fooprocess &";
system(app);

正如你可以看到有一个＆安培;字符，这样我可以在后台运行的应用程序fooprocess。我怎么能杀死这个fooprocess？

As you can see there is a "&" character so that I can run the fooprocess application in the background. How can I kill this fooprocess?

非常感谢。

推荐答案

要与你需要它的PID进程进行交互。我不知道是否有可能与系统但有另一种方法是用fork + exec来派生自己的过程。

To interact with the process you need its PID. I'm not sure if it's possible with system but one alternative is to fork the process yourself using fork + exec.

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