return $result;
}
-sub _sock_result_bulk {
+sub _sock_read_bulk {
my $len = <$sock>;
- warn "# len: ",dump($len);
+ warn "## bulk len: ",dump($len);
return undef if $len eq "nil\r\n";
my $v;
read($sock, $v, $len) || die $!;
- warn "# v: ",dump($v);
+ warn "## bulk v: ",dump($v);
my $crlf;
read($sock, $crlf, 2); # skip cr/lf
return $v;
}
-sub _sock_ok {
+sub _sock_result_bulk {
+ my $self = shift;
+ warn "## _sock_result_bulk ",dump( @_ );
+ print $sock join(' ',@_) . "\r\n";
+ _sock_read_bulk();
+}
+
+sub __sock_ok {
my $ok = <$sock>;
confess dump($ok) unless $ok eq "+OK\r\n";
}
+sub _sock_send {
+ my $self = shift;
+ warn "## _sock_send ",dump( @_ );
+ print $sock join(' ',@_) . "\r\n";
+ _sock_result();
+}
+
+sub _sock_send_ok {
+ my $self = shift;
+ warn "## _sock_send_ok ",dump( @_ );
+ print $sock join(' ',@_) . "\r\n";
+ __sock_ok();
+}
+
+sub __sock_send_bulk_raw {
+ my $self = shift;
+ warn "## _sock_send_bulk ",dump( @_ );
+ my $value = pop;
+ print $sock join(' ',@_) . ' ' . length($value) . "\r\n$value\r\n";
+}
+
sub _sock_send_bulk {
- my ( $self, $command, $key, $value ) = @_;
- print $sock "$command $key " . length($value) . "\r\n$value\r\n";
- _sock_ok();
+ __sock_send_bulk_raw( @_ );
+ __sock_ok();
}
+sub _sock_send_bulk_number {
+ __sock_send_bulk_raw( @_ );
+ my $v = _sock_result();
+ confess $v unless $v =~ m{^\-?\d+$};
+ return $v;
+}
=head1 Connection Handling
=cut
sub get {
- my ( $self, $k ) = @_;
- print $sock "GET $k\r\n";
- _sock_result_bulk();
+ my $self = shift;
+ $self->_sock_result_bulk('GET', @_);
}
=head2 incr
sub incr {
- my ( $self, $key, $value ) = @_;
- if ( defined $value ) {
- print $sock "INCRBY $key $value\r\n";
- } else {
- print $sock "INCR $key\r\n";
- }
- _sock_result();
+ my $self = shift;
+ $self->_sock_send( 'INCR' . ( $#_ ? 'BY' : '' ), @_ );
}
=head2 decr
=cut
sub decr {
- my ( $self, $key, $value ) = @_;
- if ( defined $value ) {
- print $sock "DECRBY $key $value\r\n";
- } else {
- print $sock "DECR $key\r\n";
- }
- _sock_result();
+ my $self = shift;
+ $self->_sock_send( 'DECR' . ( $#_ ? 'BY' : '' ), @_ );
}
=head2 exists
sub exists {
my ( $self, $key ) = @_;
- print $sock "EXISTS $key\r\n";
- _sock_result();
+ $self->_sock_send( 'EXISTS', $key );
}
=head2 del
sub del {
my ( $self, $key ) = @_;
- print $sock "DEL $key\r\n";
- _sock_result();
+ $self->_sock_send( 'DEL', $key );
}
=head2 type
sub type {
my ( $self, $key ) = @_;
- print $sock "TYPE $key\r\n";
- _sock_result();
+ $self->_sock_send( 'TYPE', $key );
}
=head1 Commands operating on the key space
sub keys {
my ( $self, $glob ) = @_;
- print $sock "KEYS $glob\r\n";
- return split(/\s/, _sock_result_bulk());
+ return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob ));
}
=head2 randomkey
sub randomkey {
my ( $self ) = @_;
- print $sock "RANDOMKEY\r\n";
- _sock_result();
+ $self->_sock_send( 'RANDOMKEY' );
}
=head2 rename
sub rename {
my ( $self, $old, $new, $nx ) = @_;
- print $sock "RENAME" . ( $nx ? 'NX' : '' ) . " $old $new\r\n";
- _sock_ok();
+ $self->_sock_send_ok( 'RENAME' . ( $nx ? 'NX' : '' ), $old, $new );
}
=head2 dbsize
sub dbsize {
my ( $self ) = @_;
- print $sock "DBSIZE\r\n";
- _sock_result();
+ $self->_sock_send('DBSIZE');
}
=head1 Commands operating on lists
$self->_sock_send_bulk('LPUSH', $key, $value);
}
+=head2 llen
+
+ $r->llen( $key );
+
+=cut
+
+sub llen {
+ my ( $self, $key ) = @_;
+ $self->_sock_send( 'LLEN', $key );
+}
+
+=head2 lrange
+
+ my @list = $r->lrange( $key, $start, $end );
+
+=cut
+
+sub lrange {
+ my ( $self, $key, $start, $end ) = @_;
+ my $size = $self->_sock_send('LRANGE', $key, $start, $end);
+
+ confess $size unless $size > 0;
+ $size--;
+
+ my @list = ( 0 .. $size );
+ foreach ( 0 .. $size ) {
+ $list[ $_ ] = _sock_read_bulk();
+ }
+
+ warn "## lrange $key $start $end = [$size] ", dump( @list );
+ return @list;
+}
+
+=head2 ltrim
+
+ my $ok = $r->ltrim( $key, $start, $end );
+
+=cut
+
+sub ltrim {
+ my ( $self, $key, $start, $end ) = @_;
+ $self->_sock_send_ok( 'LTRIM', $key, $start, $end );
+}
+
+=head2 lindex
+
+ $r->lindex( $key, $index );
+
+=cut
+
+sub lindex {
+ my ( $self, $key, $index ) = @_;
+ $self->_sock_result_bulk( 'LINDEX', $key, $index );
+}
+
+=head2 lset
+
+ $r->lset( $key, $index, $value );
+
+=cut
+
+sub lset {
+ my ( $self, $key, $index, $value ) = @_;
+ $self->_sock_send_bulk( 'LSET', $key, $index, $value );
+}
+
+=head2 lrem
+
+ $r->lrem( $key, $count, $value );
+
+=cut
+
+sub lrem {
+ my ( $self, $key, $count, $value ) = @_;
+ $self->_sock_send_bulk_number( 'LREM', $key, $count, $value );
+}
+
=head1 AUTHOR
Dobrica Pavlinusic, C<< <dpavlin at rot13.org> >>