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 -- View this message in context: http://forum.world.st/OSProcess-command-non-responding-image-when-calling-often-tp4899540p4900002.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.
