sub check
{
my ($s, $t) = @_;
- return 1 if exists $d{$s};
+ return 1 if find($s);
+ add($s, $t);
+ return 0;
+}
+
+sub find
+{
+ return 1 if exists $d{$_[0]};
+}
+
+sub add
+{
+ my ($s, $t) = @_;
$t = $main::systime + $default unless $t;
$d{$s} = $t;
- return 0;
}
sub del