package Redis;
use warnings;
use strict;
use IO::Socket::INET;
use Data::Dump qw/dump/;
use Carp qw/confess/;
=head1 NAME
Redis - The great new Redis!
=cut
our $VERSION = '0.01';
=head1 SYNOPSIS
Pure perl bindings for L
use Redis;
my $r = Redis->new();
=head1 FUNCTIONS
=head2 new
=cut
our $sock;
my $server = '127.0.0.1:6379';
sub new {
my $class = shift;
my $self = {};
bless($self, $class);
warn "# opening socket to $server";
$sock ||= IO::Socket::INET->new(
PeerAddr => $server,
Proto => 'tcp',
) || die $!;
$self;
}
=head1 Connection Handling
=head2 quit
$r->quit;
=cut
sub quit {
my $self = shift;
close( $sock ) || warn $!;
}
=head2 ping
$r->ping || die "no server?";
=cut
sub ping {
print $sock "PING\r\n";
my $pong = <$sock>;
die "ping failed, got ", dump($pong) unless $pong eq "+PONG\r\n";
}
=head1 Commands operating on string values
=head2 set
$r->set( foo => 'bar', $new );
=cut
sub set {
my ( $self, $k, $v, $new ) = @_;
print $sock ( $new ? "SETNX" : "SET" ) . " $k " . length($v) . "\r\n$v\r\n";
my $ok = <$sock>;
confess dump($ok) unless $ok eq "+OK\r\n";
}
=head2 get
my $value = $r->get( 'foo' );
=cut
sub get {
my ( $self, $k ) = @_;
print $sock "GET $k\r\n";
my $len = <$sock>;
# warn "# len: ",dump($len);
return undef if $len eq "nil\r\n";
my $v;
read($sock, $v, $len) || die $!;
# warn "# v: ",dump($v);
my $crlf;
read($sock, $crlf, 2); # skip cr/lf
return $v;
}
=head2 incr
$r->incr('counter');
$r->incr('tripplets', 3);
=cut
sub incr {
my ( $self, $key, $value ) = @_;
if ( defined $value ) {
print $sock "INCRBY $key $value\r\n";
} else {
print $sock "INCR $key\r\n";
}
my $count = <$sock>;
warn "# $key = $count";
return $count;
}
=head1 AUTHOR
Dobrica Pavlinusic, C<< >>
=head1 BUGS
Please report any bugs or feature requests to C, or through
the web interface at L. I will be notified, and then you'll
automatically be notified of progress on your bug as I make changes.
=head1 SUPPORT
You can find documentation for this module with the perldoc command.
perldoc Redis
You can also look for information at:
=over 4
=item * RT: CPAN's request tracker
L
=item * AnnoCPAN: Annotated CPAN documentation
L
=item * CPAN Ratings
L
=item * Search CPAN
L
=back
=head1 ACKNOWLEDGEMENTS
=head1 COPYRIGHT & LICENSE
Copyright 2009 Dobrica Pavlinusic, all rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
=cut
1; # End of Redis