Hi Sabine,

I had a Pharo 5 image where running

OSProcess waitForCommand:'ls'

twice would lock everything up.

Following Gaston's suggestion here:

http://forum.world.st/Problem-with-delay-waiting-OSSubprocess-code-on-Pharo-5-0-td4895780.html#a4898158

Fixed it for me.�� Maybe we hit the same issue.


Paul


Sabine Manaa wrote

> Hi,
>
> sorry but I have another issue with OSProcess.
>
> For my app, I want to show small .png previews from my .pdfs. For this
> reason, I use an external software, currently pdfbox. It works fine, but
> regularly, I get a hanging image. I tried to reproduce it and found out,
> that it is not a problem with pdfbox (http://pdfbox.apache.org), because
> from command line, I can call it often without problems. There can be
> (hopefully) many users in my app with many previews at one time. So I have
> to call it often.
>
> For reproduction of the OSProcess issue, I used another simple command
> (from my other OSProcess umlaut issue :-)) to test it.
>
> calling this, results in a non responding image:
>
> 20 timesRepeat: [OSProcess�� ��command: ('cp
> /Library/WebServer/Documents/reports/bar.pdf
> /Library/WebServer/Documents/reports/test-c.pdf').].
>
> also this:
> 20 timesRepeat: [OSProcess�� ��command: ('echo "Hi there"').]
>
> My original code is similar to this but here only for information:
> OSProcess
>�� �� �� �� �� �� �� ��command:
>�� �� �� �� �� �� �� �� �� �� �� ��('{1} -jar {2} PDFToImage -format PNG -page 1 -dpi 100 {3}'
>�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��format:
>�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��{'Library/Internet\
> Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java'.
>�� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� �� ��'/Users/sabine/Desktop/pdfbox-app-2.0.1.jar'.
>
> '/Library/WebServer/Documents/reports/201411121510-112859865-3378921/20150605_170_IFA_Berlin_Reisekostenabrechnung.pdf'}).
>
>
> So, my question is: is it wrong, calling OSProcess like this? How to do it
> instead?
>
> I am sorry to ask again and hope that there is a simple solution.
> Or is it a bug in OSProcess?
>
> Regards
> Sabine





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