Re: Program hangs when entering commands from HMIConsoleInput

On Friday 13 August 2004 12:23, rizzi gianpaolo wrote:
> Hello Peter
>
> I get a total system freeze and I am forced to switch off the PC power.
>
> I tried the console_output.display("Hello") it works fine.
>
> Can you suggest me any test usefull to identify the probelm?

Hmm, did you select the component before you issued the command ?
If you do not select it, the componentStartup() method is not called and 
invalid data might be in the dataobjects. Maybe this caused a crash, from 
which rtai could not recover. You can also run the kernel in a 
TaskNonRealtime and see what happens then. Be sure to adapt the thread 
periodicities if necessary.

You can select using kernel.selectGenerator("c3gGenerator") and check it with 
console_output.displayBool( kernel.usingGenerator("c3gGenerator"))

Furthermore, I would advise you to add the line 
if ( this->isSelected() == false )
   return false;

to your Move and MoveTo functions, to intercept commands which are not valid 
if the component is not active.

Peter

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Peter Soetens, Research Assistant                  http://www.orocos.org
Katholieke Universiteit Leuven
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Machine Design and Automation                         fax. +32 16 322987
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