7 use Data::Dump qw/dump/;
12 Redis - perl binding for Redis database
16 our $VERSION = '0.01';
21 Pure perl bindings for L<http://code.google.com/p/redis/>
23 This version support git version of Redis available at
24 L<git://github.com/antirez/redis>
37 my $server = '127.0.0.1:6379';
44 warn "# opening socket to $server";
46 $sock ||= IO::Socket::INET->new(
56 warn "# result: ",dump( $result );
57 $result =~ s{\r\n$}{} || warn "can't find cr/lf";
63 warn "## bulk len: ",dump($len);
64 return undef if $len eq "nil\r\n";
67 read($sock, $v, $len) || die $!;
68 warn "## bulk v: ",dump($v);
71 read($sock, $crlf, 2); # skip cr/lf
75 sub _sock_result_bulk {
77 warn "## _sock_result_bulk ",dump( @_ );
78 print $sock join(' ',@_) . "\r\n";
82 sub _sock_result_bulk_list {
84 warn "## _sock_result_bulk_list ",dump( @_ );
86 my $size = $self->_sock_send( @_ );
87 confess $size unless $size > 0;
90 my @list = ( 0 .. $size );
91 foreach ( 0 .. $size ) {
92 $list[ $_ ] = _sock_read_bulk();
95 warn "## list = ", dump( @list );
101 return undef if $ok eq "nil\r\n";
102 confess dump($ok) unless $ok eq "+OK\r\n";
107 warn "## _sock_send ",dump( @_ );
108 print $sock join(' ',@_) . "\r\n";
114 warn "## _sock_send_ok ",dump( @_ );
115 print $sock join(' ',@_) . "\r\n";
119 sub __sock_send_bulk_raw {
121 warn "## _sock_send_bulk ",dump( @_ );
123 $value = '' unless defined $value; # FIXME errr? nil?
124 print $sock join(' ',@_) . ' ' . length($value) . "\r\n$value\r\n"
127 sub _sock_send_bulk {
128 __sock_send_bulk_raw( @_ );
132 sub _sock_send_bulk_number {
133 __sock_send_bulk_raw( @_ );
134 my $v = _sock_result();
135 confess $v unless $v =~ m{^\-?\d+$};
139 =head1 Connection Handling
150 close( $sock ) || warn $!;
155 $r->ping || die "no server?";
160 print $sock "PING\r\n";
162 die "ping failed, got ", dump($pong) unless $pong eq "+PONG\r\n";
165 =head1 Commands operating on string values
169 $r->set( foo => 'bar', $new );
174 my ( $self, $key, $value, $new ) = @_;
175 $self->_sock_send_bulk( "SET" . ( $new ? 'NX' : '' ), $key, $value );
180 my $value = $r->get( 'foo' );
186 $self->_sock_result_bulk('GET', @_);
192 $r->incr('tripplets', 3);
200 $self->_sock_send( 'INCR' . ( $#_ ? 'BY' : '' ), @_ );
206 $r->decr('tripplets', 3);
212 $self->_sock_send( 'DECR' . ( $#_ ? 'BY' : '' ), @_ );
217 $r->exists( 'key' ) && print "got key!";
222 my ( $self, $key ) = @_;
223 $self->_sock_send( 'EXISTS', $key );
228 $r->del( 'key' ) || warn "key doesn't exist";
233 my ( $self, $key ) = @_;
234 $self->_sock_send( 'DEL', $key );
239 $r->type( 'key' ); # = string
244 my ( $self, $key ) = @_;
245 $self->_sock_send( 'TYPE', $key );
248 =head1 Commands operating on the key space
252 my @keys = $r->keys( '*glob_pattern*' );
257 my ( $self, $glob ) = @_;
258 return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob ));
263 my $key = $r->randomkey;
269 $self->_sock_send( 'RANDOMKEY' );
274 my $ok = $r->rename( 'old-key', 'new-key', $new );
279 my ( $self, $old, $new, $nx ) = @_;
280 $self->_sock_send_ok( 'RENAME' . ( $nx ? 'NX' : '' ), $old, $new );
285 my $nr_keys = $r->dbsize;
291 $self->_sock_send('DBSIZE');
294 =head1 Commands operating on lists
296 See also L<Redis::List> for tie interface.
300 $r->rpush( $key, $value );
305 my ( $self, $key, $value ) = @_;
306 $self->_sock_send_bulk('RPUSH', $key, $value);
311 $r->lpush( $key, $value );
316 my ( $self, $key, $value ) = @_;
317 $self->_sock_send_bulk('LPUSH', $key, $value);
327 my ( $self, $key ) = @_;
328 $self->_sock_send( 'LLEN', $key );
333 my @list = $r->lrange( $key, $start, $end );
338 my ( $self, $key, $start, $end ) = @_;
339 $self->_sock_result_bulk_list('LRANGE', $key, $start, $end);
344 my $ok = $r->ltrim( $key, $start, $end );
349 my ( $self, $key, $start, $end ) = @_;
350 $self->_sock_send_ok( 'LTRIM', $key, $start, $end );
355 $r->lindex( $key, $index );
360 my ( $self, $key, $index ) = @_;
361 $self->_sock_result_bulk( 'LINDEX', $key, $index );
366 $r->lset( $key, $index, $value );
371 my ( $self, $key, $index, $value ) = @_;
372 $self->_sock_send_bulk( 'LSET', $key, $index, $value );
377 my $modified_count = $r->lrem( $key, $count, $value );
382 my ( $self, $key, $count, $value ) = @_;
383 $self->_sock_send_bulk_number( 'LREM', $key, $count, $value );
388 my $value = $r->lpop( $key );
393 my ( $self, $key ) = @_;
394 $self->_sock_result_bulk( 'LPOP', $key );
399 my $value = $r->rpop( $key );
404 my ( $self, $key ) = @_;
405 $self->_sock_result_bulk( 'RPOP', $key );
408 =head1 Commands operating on sets
412 $r->sadd( $key, $member );
417 my ( $self, $key, $member ) = @_;
418 $self->_sock_send_bulk_number( 'SADD', $key, $member );
423 $r->srem( $key, $member );
428 my ( $self, $key, $member ) = @_;
429 $self->_sock_send_bulk_number( 'SREM', $key, $member );
434 my $elements = $r->scard( $key );
439 my ( $self, $key ) = @_;
440 $self->_sock_send( 'SCARD', $key );
445 $r->sismember( $key, $member );
450 my ( $self, $key, $member ) = @_;
451 $self->_sock_send_bulk_number( 'SISMEMBER', $key, $member );
456 $r->sinter( $key1, $key2, ... );
462 $self->_sock_result_bulk_list( 'SINTER', @_ );
467 my $ok = $r->sinterstore( $dstkey, $key1, $key2, ... );
473 $self->_sock_send_ok( 'SINTERSTORE', @_ );
478 Dobrica Pavlinusic, C<< <dpavlin at rot13.org> >>
482 Please report any bugs or feature requests to C<bug-redis at rt.cpan.org>, or through
483 the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Redis>. I will be notified, and then you'll
484 automatically be notified of progress on your bug as I make changes.
491 You can find documentation for this module with the perldoc command.
496 You can also look for information at:
500 =item * RT: CPAN's request tracker
502 L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Redis>
504 =item * AnnoCPAN: Annotated CPAN documentation
506 L<http://annocpan.org/dist/Redis>
510 L<http://cpanratings.perl.org/d/Redis>
514 L<http://search.cpan.org/dist/Redis>
519 =head1 ACKNOWLEDGEMENTS
522 =head1 COPYRIGHT & LICENSE
524 Copyright 2009 Dobrica Pavlinusic, all rights reserved.
526 This program is free software; you can redistribute it and/or modify it
527 under the same terms as Perl itself.