Re: Trying not to miss any output from a PROCESS

Hello,

> Does anybody can explain me my mistake(s)/misunderstanding(s) ?

Yes. There are two things to consider.

1- parallelism

Both processes work in parallel. It may be that the first read_line 
returns nothing if the process did not have a chance to run yet.

Your second try is better in that there is a loop that should ensure all 
the data is read. Alas, it is not so because end_of_input can get 
temporarily False if nothing is available, then be set back to True later.

Two solutions: either perform a p.wait before reading the data, and then 
the loop is even useless; either loop until p.finished and then 
p.output.end_of_input; which is simply equivalent to loop until not 
p.is_connected

2- the usual io algorithm

Your loop must BEGIN by a read_line in the from part; see the FAQ that 
explains the best way to code an io loop.
http://smarteiffel.loria.fr/man/SmartEiffelFAQ.html#Q17

Your loop should then look like:

        from
                p.output.read_line
        until
                not p.output.is_connected
        loop
                resultat.append(p.output.last_string)
                p.output.read_line
        end

Hope it helps! (and I hope it works, too) 8-)


Last words:

- I'll try to add a "sequencer" layer (using the JOB class and the 
lib/sequencer cluster) as I did for the lib/net cluster. It should help to 
simplify things. Maybe. Ideas and/or code are welcome.

- There are certainly bugs left in the library. Sorry about that.

- Of course, doc is missing. I'll add that too, eventually.


Best regards,
--
Cyril Adrian -- ALPLOG
@ PSA Peugeot Citroën, Sochaux, France
tél. +33 (0)3 81 33 48 76
fax +33 (0)3 81 33 16 06