Controlling Unix process from within C++

[scecilia]

Hello,

I currently can make a system call from within my C++ as follows:

exec("ls -l&quot,

I want to run a more complicated program and be able to controll it from withing my C++. For example, if I run the xclock process, I cannot gain control of my program until I close the xclock window. How can I launch this xclock program and still be able to communicate with my C++ via the Unix prompt?

Thanks!!

 

[SamBones]

Well, to have your program return immediately with the other program still running, you need to use [tt]fork()[/tt] and [tt]exec()[/tt]. It should be easy to find examples.

Then to have one control the other, you need to use some for of Interprocess Communication. That could be shared/mapped memory, semaphores, signals, pipes, etc. But you need to write both the controlling and controlled programs to use them.

Hope this helps.

 

[scecilia]

It got me started, Thanks!