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Re^2: What Perl CAN'T do?

by wazoox (Prior)
on Dec 14, 2005 at 16:31 UTC ( #516684=note: print w/ replies, xml ) Need Help??

in reply to Re: What Perl CAN'T do?
in thread What Perl CAN'T do?

AFAIK it's possible to write linux kernel modules in Perl. It's probably a blessing for prototyping...

Another interesting thing I just discovered today : An "enterprise strength" RDBMS, with clustering and other high-end features, entirely written in Perl.

And then there's that CAD application prototype written in perl, Puzzle Bobble, and some others... Well, actually it seems anything can be done in Perl after all :)

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Re^3: What Perl CAN'T do?
by Zaxo (Archbishop) on Dec 14, 2005 at 22:14 UTC

    It could be written, but I'm not so sure a real kernel module could be run in Perl. Kernel modules run in one of the processor's privileged modes, which are the sole possession of the kernel. Perl-as-she-is runs in user mode and I don't know how to make the kernel do it any differently.

    A "user-level driver" is a different story. Perl has ioctl for that, and it works well. I once wrote pieces of one and I'm very proud of it, even though it's still incomplete (ran into integer width trouble). It's the only time I ever wrote anything with ioctl.

    After Compline,

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