Run the program below and do a kill -USR1, to see it in action. 
#!/usr/bin/perl -w
use IO::Select;

my $sel = new IO::Select (\*STDIN); 
$SIG{USR1} = sub { print "signal\n"};

if (my @socks = $sel->can_read(50)) 
{
    warn "Got Here\n";
} 
else 
{
    warn "Else: $!\n";
}

[download]

-- All code is 100% tested and functional unless otherwise noted.

In reply to Re^2: What makes IO::Select::can_read return? by sleepingsquirrel
in thread What makes IO::Select::can_read return? by beemshake

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