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Speed up delete_jumps()

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
This commit is contained in:
Tom Eastep 2010-04-11 08:38:14 -07:00
parent 91a711b34f
commit 715ea9ef32
1 changed files with 9 additions and 8 deletions
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17
Shorewall/Perl/Shorewall/Chains.pm
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@ -673,23 +673,24 @@ sub add_jump( $$$;$$$ ) {
#
sub delete_jumps ( $$ ) {
my ( $fromref, $toref ) = @_;
my $to = $toref->{name};
my $last = 0;
my $rule;
my $to = $toref->{name};
my $from = $fromref->{name};
my $rules = $fromref->{rules};
my $refs = $toref->{references}{$from};
#
# A C-style for-loop with indexing seems to work best here, given that we are
# deleting elements from the array over which we are iterating.
#
for ( $rule = 0; $rule <= $#{$fromref->{rules}}; $rule++ ) {
if ( $fromref->{rules}[$rule] =~ / -[gj] ${to}\b/ ) {
for ( my $rule = 0; $rule <= $#{$rules}; $rule++ ) {
if ( $rules->[$rule] =~ / -[gj] ${to}\b/ ) {
trace( $fromref, 'D', $rule + 1, $_ ) if $debug;
splice( @{$fromref->{rules}}, $rule, 1 );
last unless --$toref->{references}{$fromref->{name}} > 0;
splice( @$rules, $rule, 1 );
last unless --$refs > 0;
$rule--;
}
}
delete $toref->{references}{$fromref->{name}};
delete $toref->{references}{$from};
unless ( @{$toref->{rules}} ) {
$toref->{referenced} = 0;