How do I propagate an exception thrown by croak in forked child to parent/foreground process?

Posted by Pedro Silva on Stack Overflow See other posts from Stack Overflow or by Pedro Silva
Published on 2010-06-01T06:39:58Z Indexed on 2010/06/01 6:43 UTC
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perl

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exception-handling

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fork

Throwing an exception via croak in a forked child process seems to print the error as a background process would. That is, it clobbers the shell prompt.

If I die instead of croak, the the error message pops up as a foreground process. I've trying to find out why that is in the Carp documentation without any luck.

Here's what I mean. The croak version:

$ perl Wrapper.pm
$ error: ... does not exist at Wrapper.pm line 624

The die version:

$ perl Wrapper.pm
error: ... does not exist at Wrapper.pm line 515.

I tried trapping the fork and printing $@ to STDERR and exiting, but that didn't have an effect. Any ideas? I'd like to be able to use croak in this particular case.

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