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Re: timeout for ?

by ar0n (Priest)
on Aug 29, 2000 at 13:06 UTC ( #30092=note: print w/replies, xml ) Need Help??


in reply to timeout for ?

From "Advanced Perl Programming":
$SIG{ALRM} = \&timed_out; eval { alarm(10); $buf = <>; alarm(0); }; if ($@ =~ /BLAH/) { print "Timed out."; } sub timed_out { die "BLAH" }
update
this will wait ten seconds for someone to enter something. the alarm(0) is to reset the timer if something does get entered (so &timed_out won't get called).

if you want high resolution timing (like 2.35), ye olde dromedary suggests using syscall to call the system timer routines (itimer).

-- ar0n || Just Another Perl Joe

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RE: Re: timeout for ?
by tye (Sage) on Aug 29, 2000 at 18:25 UTC

    Ye olde dromedary is old.

    use Time::HiRes;

            - tye (but my friends call me "Tye")

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[Corion]: Yaerox: That's a somewhat hard problem. Encode solves the conversion part, but for guessing what encoding a file is in, that's the hard part
[Corion]: Yaerox: There is Encode::Guess, but that needs a limited set of inputs, and it also cannot handle multiple single-byte encodings
[Corion]: If you have a BOM, that's a really easy way to recognize UTF-8. Otherwise, you can try to decode a file from UTF-8, and if that works OK and doesn't crash, most likely the file was valid UTF-8
[Corion]: But as "ansi" (Latin-1?) is a single-byte encoding, any file is a valid ANSI file

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