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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

Replies are listed 'Best First'.
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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[stevieb]: yeah, so the wiringPi library appears to be missing/injecting incorrect defined variables into I2C calls, and it's all over the map. I'm going to have to revisit and use something else, write something else, or scrutinize the code and fix

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