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YA fork() question: catching runaway and erroneous processesby stefan k (Curate) |
on Jul 28, 2004 at 07:16 UTC ( [id://377945]=perlquestion: print w/replies, xml ) | Need Help?? |
stefan k has asked for the wisdom of the Perl Monks concerning the following question:
Fellow Monks, once again yet another fork()-question is posted. I definetely think there should be a tutorial around but I couldn't find any. And reading man perlipc didn't make me much smarter, too. Thus here I go... The problem is: I need to start a program that is known to hang from time to time and to crash at other times. Well, OK, sometimes it works, too :-) What I did so far is: loop over a certain amount of tries, each time fork and excute the program in the child while the parent process waits for a maximum amount of time, eventually killing the child. Speaking in code: The problem with this solution is that I don't get any information whether the program exited with an error or not. Substituting the exec for a system resulted in many processes hanging in the process table. Can you give me any clues?
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