doubts of a perl beginner in G

jithoosin has asked for the wisdom of the Perl Monks concerning the following question:

Hi monks
Let me explain my situation first.I am using a perl file written by another guy inside my C code.I am not supposed to edit the perl file which is written by my friend.The guy who wrote the perl file has used "exit(0)" inside it.I need to catch it.

So when i performed a super search i got a node Catching errors in embedded Perl and i also looked into using G_EVAL.The perldoc says it is possible to catch "die" inside the code and i tried it .It is working.Now my question is whether is it possible to catch the "exit(0)" statements in the perl code using G_EVAL. If it is not possible is there any other method to catch "exit(0)" in a perl code when it is called from C.Could any of the monks help me

Thanks
Kiran

Comment on doubts of a perl beginner in G_EVAL(perlEmbed)

Replies are listed 'Best First'.
Re: doubts of a perl beginner in G_EVAL(perlEmbed) by McDarren (Abbot) on Dec 26, 2005 at 08:40 UTC
hmm, from `perldoc -f exit` `Don't use "exit" to abort a subroutine if there's any chance that someone might want to trap whatever error happened. Use "die" instead, which can be trapped by an "eval".` [download] That doesn't sound too promising.... Do you actually need to catch the `exit 0`, or do you just need to know whether it terminated normally. AFAIK, a zero exit status generally means sucess, whereas anything else means that something went wrong. So perhaps you could just test the exit status of the Perl script, no?	[reply] [d/l] [select]
Re^2: doubts of a perl beginner in G_EVAL(perlEmbed) by jithoosin (Scribe) on Dec 26, 2005 at 09:07 UTC
After reading the first reply i feel i must ask my friend to change the perl code ie exit(0) must be changed to "die".Thanks for the suggestion from the perl doc.	[reply]
Re: doubts of a perl beginner in G_EVAL(perlEmbed) by educated_foo (Vicar) on Dec 26, 2005 at 09:35 UTC
Admittedly your friend's code is ill-mannered, but if it's UNIX, could you just use fork(2) and either wait(2) or waitpid(2), putting the G_EVAL in the child process? (I think StartProcess could be similarly applied on Windows, but have never tried.)	[reply]


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doubts of a perl beginner in G_EVAL(perlEmbed)