Depending on how time-sensitive your operation is, and its nature, something like this might work:
my $n_secs = 30; #seconds after which we die.
my $start = time;
## each iteration of this loop is short, but the whole
## thing is long
while ( $some_condition ) {
die 'We ran too long!' if time-$start >= $n_secs;
## do stuff ##
}
Of course, this will fail miserably if you can't check time regularly; since I don't know what your implementation looks like, I can't say if it will work for you or not. As for putting it in a module:
package RunKiller;
sub new {
my $self = shift;
my $obj = { timer => time(), length => shift };
bless $obj, $self;
return $self;
}
sub check {
my $self = shift;
die 'Ran too long!' if time-($self->{timer}) >= $self->{length};
}
1;
Called like:
require RunKiller;
my $runtimer = RunKiller->new(30); #30s run length.
while (1) {
$runtimer->check();
## do something ##
}
<-radiant.matrix->
Larry Wall is Yoda: there is no try{} (ok, except in Perl6; way to ruin a joke, Larry! ;P)
The Code that can be seen is not the true Code
"In any sufficiently large group of people, most are idiots" - Kaa's Law
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