Thanks for the answer.

I'm using cython, so in a way I'm linked to the Xenomai libraries, and I
don’t know if this makes a difference. The python->xenomai messages are
working. Can I trust this? Also, I just found about buffers, should they
work? Or as you said previously, I should stick with pipes?

Thanks again


2013/7/26 Philippe Gerum <[email protected]>

> On 07/26/2013 09:28 PM, Ricardo Amézquita wrote:
>
>> Hello All
>>
>> I'm writing a simple wrapper in python to be able to control some
>> real-time
>> processes. To communicate between the real-time process, and the python
>> process I'm using native queues. Sending messages from the python process
>> to the realtime process is working fine, but when I try to send a message
>> from the realtime process to the python process, I'm having problems.
>> Using
>> rt_queue inquire, I know that the message is in the queue, but the receive
>> function in the python side, never receives it.
>>
>> Is there a limitation that apply to my application? I have tested with
>> pipes, and it works, but I want to implement everything using queues.
>>
>>
> If your python process is not supposed to run Xenomai services at all,
> i.e. mere Linux application not even linked with the Xenomai libraries,
> then message pipes are definitely what you are looking for. Queues won't
> work, since the python side won't be allowed to receive from a real-time
> queue.
>
> --
> Philippe.
>



-- 
Ricardo Amézquita O

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