In my experience, the best (or easiest) way to handle that under Linux is to make the underlaying socket non-blocking and then use select to wait for input.
Before the select, place a signal handler that would set a flag variable, and after the select, check if that variable has been set. To work around race-conditions, set a timeout in the select call:
# untested:
my $stop = 0;
$SIG{INT} = sub { $stop = 1 };
while (1) {
my $fileno = fileno($linux_notify2->socket);
my $v = '';
vec ($v, $fileno, 1) = 1;
select($v, undef, undef, 0.1);
last if $stop;
if (vec($v, $fileno, 1)) {
$linux_notify2->poll;
...
}
}
Another option, is to use one of the event frameworks available as POE or AnyEvent (though, mixing them with threads can be problematic at least). |