second or more functions in a component

Hello!

My name is Thomas and I’m from Austria. My project is to retrofit a Chiron FZ16.
My hardware components are:
2x 4i65
2x7i33
3x7i37
My first component was for the rotary table and this is perfect working.
Now I tried to write a component for ATC and now I have some troubles.
An example for my problem:

Bool homeATC(){
// some code (state machined)
return true; //when ready
}

Function(__){
//main component
switch(state){
case home:
if(inputHomeATC) {
if(!syncWZW()) {
state = nextState;
}
}
break;
.
.
.
case n: break;
}
}

Comp does compile it but when I start linuxcnc, I get a timeout. Is it possible to call a function in the real time function(of course state machined)?
In the manual I found no hint about this topic.
In the source from linuxcnc i have seen the original comps and there is an example to call an another component in an component. Is this the only way? I hope not.

Regards Thomas

Hello!

Now I found the problem with my code in the comp.

In my function homeATC() I called an another small function. It seems the function call stack is only 1 level. When I have another call in a function, I get a this error:

RTAPI: Task 1[0xf6302800]: Fault with vec=14, signo=11, ip=fd718124.
RTAPI: This fault may not be recoverable without rebooting.

Okay, I need to rewrite the code a little bit to get working.

But thanks for your answers.

Have a nice day,
Thomas

Hi,

There certainly is something about calling externally coded functions in a real time component that is problematic.

I have had to code the same functionality in-line previously, even though that is rather wasteful and certainly not elegant.

Having a small checking routine which was called several times in the main _FUNCTION(), just did not work and it took a while to find out why the component did not work.
That may well be the reason.

regards