Here's something to start off with. Note that it's not
finished and only tested with one trivial example.
package Timed;
use strict;
use warnings;
use Exporter ();
our @ISA = qw /Exporter/;
our @EXPORT = qw /timed_system/;
sub timed_system {
my $time = shift;
my $pid;
local $SIG {ALRM} = sub {kill 15, $pid or die "kill: $!";
die "Timeout!"}; # Just SIGTERM.
eval {
$pid = fork;
die "Fork failed: $!" unless defined $pid;
unless ($pid) {
exec @_;
die "Exec failed: $!";
}
alarm $time;
waitpid $pid => 0;
};
die $@ if $@ && $@ !~ /^Timeout!/;
}
1;
Abigail
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