Re: [FWP] Slurp weirdness

["David L. Nicol" <david@kasey.umkc.edu>]

Paolo Campanella wrote:
> 
> Paolo Campanella wrote:
> 
> > The 'split' must have crept in as one of a bunch of experiments I tried
> > to nail down the problem, and forgot to remove - very un-fun :-(
> 
> Correction: the problem is only visible when using $/=undef and
> splitting on newlines, as per my original post. When using the list
> context, everything works as one would expect.

Sounds like you have uncovered a bug with the /proc file system. Have
you explored the exact system calls, or at least mentioned this
difficulty
to a kernel developer? Which kernel are you using, for instance, and
does the behavior go away on a different kernel?

Then again it could be perl; how does undefined-delimiter slurping work
exactly?  There is no "read until eof" system call, all the system calls
take some kind of length argument.  When you read the length of this
/proc pseudo-file at a system call level, do you get the length of 63
of its records?  If that is the case, whose problem is it?

The moral for now seems to be, "Don't use undefined slurps to read
/proc pseudo-files"


__________________________________________________________________
                          David Nicol 816.235.1187 nicold@umkc.edu
echo "Guns don't kill people, people using guns kill people"|perl\
 -pe 's/guns/mirroring software/gi; s/kill people/commit piracy/g'

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