7 use Data::Dump qw/dump/;
12 Redis - The great new Redis!
16 our $VERSION = '0.01';
21 Pure perl bindings for L<http://code.google.com/p/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";
84 return undef if $ok eq "nil\r\n";
85 confess dump($ok) unless $ok eq "+OK\r\n";
90 warn "## _sock_send ",dump( @_ );
91 print $sock join(' ',@_) . "\r\n";
97 warn "## _sock_send_ok ",dump( @_ );
98 print $sock join(' ',@_) . "\r\n";
102 sub __sock_send_bulk_raw {
104 warn "## _sock_send_bulk ",dump( @_ );
106 $value = '' unless defined $value; # FIXME errr? nil?
107 print $sock join(' ',@_) . ' ' . length($value) . "\r\n$value\r\n"
110 sub _sock_send_bulk {
111 __sock_send_bulk_raw( @_ );
115 sub _sock_send_bulk_number {
116 __sock_send_bulk_raw( @_ );
117 my $v = _sock_result();
118 confess $v unless $v =~ m{^\-?\d+$};
122 =head1 Connection Handling
133 close( $sock ) || warn $!;
138 $r->ping || die "no server?";
143 print $sock "PING\r\n";
145 die "ping failed, got ", dump($pong) unless $pong eq "+PONG\r\n";
148 =head1 Commands operating on string values
152 $r->set( foo => 'bar', $new );
157 my ( $self, $key, $value, $new ) = @_;
158 $self->_sock_send_bulk( "SET" . ( $new ? 'NX' : '' ), $key, $value );
163 my $value = $r->get( 'foo' );
169 $self->_sock_result_bulk('GET', @_);
175 $r->incr('tripplets', 3);
183 $self->_sock_send( 'INCR' . ( $#_ ? 'BY' : '' ), @_ );
189 $r->decr('tripplets', 3);
195 $self->_sock_send( 'DECR' . ( $#_ ? 'BY' : '' ), @_ );
200 $r->exists( 'key' ) && print "got key!";
205 my ( $self, $key ) = @_;
206 $self->_sock_send( 'EXISTS', $key );
211 $r->del( 'key' ) || warn "key doesn't exist";
216 my ( $self, $key ) = @_;
217 $self->_sock_send( 'DEL', $key );
222 $r->type( 'key' ); # = string
227 my ( $self, $key ) = @_;
228 $self->_sock_send( 'TYPE', $key );
231 =head1 Commands operating on the key space
235 my @keys = $r->keys( '*glob_pattern*' );
240 my ( $self, $glob ) = @_;
241 return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob ));
246 my $key = $r->randomkey;
252 $self->_sock_send( 'RANDOMKEY' );
257 my $ok = $r->rename( 'old-key', 'new-key', $new );
262 my ( $self, $old, $new, $nx ) = @_;
263 $self->_sock_send_ok( 'RENAME' . ( $nx ? 'NX' : '' ), $old, $new );
268 my $nr_keys = $r->dbsize;
274 $self->_sock_send('DBSIZE');
277 =head1 Commands operating on lists
281 $r->rpush( $key, $value );
286 my ( $self, $key, $value ) = @_;
287 $self->_sock_send_bulk('RPUSH', $key, $value);
292 $r->lpush( $key, $value );
297 my ( $self, $key, $value ) = @_;
298 $self->_sock_send_bulk('LPUSH', $key, $value);
308 my ( $self, $key ) = @_;
309 $self->_sock_send( 'LLEN', $key );
314 my @list = $r->lrange( $key, $start, $end );
319 my ( $self, $key, $start, $end ) = @_;
320 my $size = $self->_sock_send('LRANGE', $key, $start, $end);
322 confess $size unless $size > 0;
325 my @list = ( 0 .. $size );
326 foreach ( 0 .. $size ) {
327 $list[ $_ ] = _sock_read_bulk();
330 warn "## lrange $key $start $end = [$size] ", dump( @list );
336 my $ok = $r->ltrim( $key, $start, $end );
341 my ( $self, $key, $start, $end ) = @_;
342 $self->_sock_send_ok( 'LTRIM', $key, $start, $end );
347 $r->lindex( $key, $index );
352 my ( $self, $key, $index ) = @_;
353 $self->_sock_result_bulk( 'LINDEX', $key, $index );
358 $r->lset( $key, $index, $value );
363 my ( $self, $key, $index, $value ) = @_;
364 $self->_sock_send_bulk( 'LSET', $key, $index, $value );
369 my $modified_count = $r->lrem( $key, $count, $value );
374 my ( $self, $key, $count, $value ) = @_;
375 $self->_sock_send_bulk_number( 'LREM', $key, $count, $value );
380 my $value = $r->lpop( $key );
385 my ( $self, $key ) = @_;
386 $self->_sock_result_bulk( 'LPOP', $key );
391 my $value = $r->rpop( $key );
396 my ( $self, $key ) = @_;
397 $self->_sock_result_bulk( 'RPOP', $key );
400 =head1 Commands operating on sets
404 $r->sadd( $key, $member );
409 my ( $self, $key, $member ) = @_;
410 $self->_sock_send_bulk_number( 'SADD', $key, $member );
415 $r->srem( $key, $member );
420 my ( $self, $key, $member ) = @_;
421 $self->_sock_send_bulk_number( 'SREM', $key, $member );
426 my $elements = $r->scard( $key );
431 my ( $self, $key ) = @_;
432 $self->_sock_send( 'SCARD', $key );
437 Dobrica Pavlinusic, C<< <dpavlin at rot13.org> >>
441 Please report any bugs or feature requests to C<bug-redis at rt.cpan.org>, or through
442 the web interface at L<http://rt.cpan.org/NoAuth/ReportBug.html?Queue=Redis>. I will be notified, and then you'll
443 automatically be notified of progress on your bug as I make changes.
450 You can find documentation for this module with the perldoc command.
455 You can also look for information at:
459 =item * RT: CPAN's request tracker
461 L<http://rt.cpan.org/NoAuth/Bugs.html?Dist=Redis>
463 =item * AnnoCPAN: Annotated CPAN documentation
465 L<http://annocpan.org/dist/Redis>
469 L<http://cpanratings.perl.org/d/Redis>
473 L<http://search.cpan.org/dist/Redis>
478 =head1 ACKNOWLEDGEMENTS
481 =head1 COPYRIGHT & LICENSE
483 Copyright 2009 Dobrica Pavlinusic, all rights reserved.
485 This program is free software; you can redistribute it and/or modify it
486 under the same terms as Perl itself.