It dosn't get much simpler than this. Instead of the SIG(INT), you could just directly call exit, for a quicker kill.
#!/usr/bin/perl -w
use strict;
use threads;
use threads::shared;
my $timer_go:shared = 0;
my $worker = threads->create(\&worker);
my $timer = threads->create(\&timer,$worker);
print "hit enter to start\n";
<>;
$timer_go=1;
<>;
$timer->join();
$worker->join();
sub timer {
my $worker = shift;
while(1){
if($timer_go){
my $count = 0;
while(1){
$count++;
if($count > 5){
print "timed out\nHit enter to finish\n";
# Send a signal to a thread
$worker->kill('INT');
return;
}
sleep 1;
print "timing $count\n";
}
}else{sleep 1}
}
}
sub worker {
$|++;
$SIG{INT} = sub{ warn "Caught Zap!\n"; sleep 1; exit; };
# do your timed program here.
my $worker_pid = open( READ, "top -d 1 -b |" );
print "\t$worker_pid\n";
while(<READ>){ }
return;
}
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