Hi Casimiro,

I have a text-only mail reader, so I cannot see which line is in red.
I am afraid that I don't understand the problem. Is there a problem
with the stdOut from Squeak ("OSProcess thisOSProcess stdOut") or a
problem with the stdOut from the child process ("child upToEnd") ?

Sorry, I am confused.

Dave


On Tue, Sep 01, 2009 at 10:06:39PM -0300, Casimiro de Almeida Barreto wrote:
> Something weird concerning to stdOut...
> 
> If I delete the line in red, a transcript will be open but nothing will
> be available at the pipeline. Nevertheless, processes will run OK.
> Obvious, the line will produce an output at the shell where squeak is
> being run. The final OSProcess thisOSProcess stdOut ... were put only to
> provide something at the shell...
> 
> 
> 
> OSProcess thisOSProcess stdOut nextPutAll: 'Training ANN...'.
>         
>     child := PipeableOSProcess forkHeadlessSqueakAndDoThenQuit: [
>                 fInterface apiFannCascadetrain: aFann onData:
> someTrainingData maxNeurons: aNumberOfNeurons reporting: 1 toPrecision:
> theMaxError asFloat.
>                 fInterface apiFannSave: aFann toFile: aFileName ].
>     
>     ts := TranscriptStream new.
>     ts openLabel: 'Training ANN: ',aFileName.
>     
>     [ child isComplete ] whileFalse: [
>         
>         | str |
>         
>         child flush.
>         str := child upToEnd.
>         str size > 0
>             ifTrue: [
>                 ts show: str.
>                 ts show: Character cr].
>         (Delay forSeconds: 5) wait.
>     ].
> 
>     ts closeAllViews.
>     
>     OSProcess thisOSProcess stdOut nextPutAll: ' [DONE]'.
>     OSProcess thisOSProcess stdOut nextPut: Character lf.