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use strict; |
use strict; |
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use IO::Socket::INET; |
use IO::Socket::INET; |
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use Data::Dump qw/dump/; |
use Data::Dumper; |
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use Carp qw/confess/; |
use Carp qw/confess/; |
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=head1 NAME |
=head1 NAME |
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Redis - The great new Redis! |
Redis - perl binding for Redis database |
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=cut |
=cut |
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our $VERSION = '0.01'; |
our $VERSION = '1.2001'; |
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=head1 SYNOPSIS |
=head1 DESCRIPTION |
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Pure perl bindings for L<http://code.google.com/p/redis/> |
Pure perl bindings for L<http://code.google.com/p/redis/> |
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use Redis; |
This version supports protocol 1.2 or later of Redis available at |
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my $r = Redis->new(); |
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L<git://github.com/antirez/redis> |
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This documentation |
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lists commands which are exercised in test suite, but |
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additinal commands will work correctly since protocol |
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specifies enough information to support almost all commands |
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with same peace of code with a little help of C<AUTOLOAD>. |
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=head1 FUNCTIONS |
=head1 FUNCTIONS |
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=head2 new |
=head2 new |
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=cut |
my $r = Redis->new; # $ENV{REDIS_SERVER} or 127.0.0.1:6379 |
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my $r = Redis->new( server => '192.168.0.1:6379', debug = 0 ); |
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our $sock; |
=cut |
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my $server = '127.0.0.1:6379'; |
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sub new { |
sub new { |
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my $class = shift; |
my $class = shift; |
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my $self = {}; |
my $self = {@_}; |
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bless($self, $class); |
$self->{debug} ||= $ENV{REDIS_DEBUG}; |
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warn "# opening socket to $server"; |
$self->{sock} = IO::Socket::INET->new( |
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PeerAddr => $self->{server} || $ENV{REDIS_SERVER} || '127.0.0.1:6379', |
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$sock ||= IO::Socket::INET->new( |
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PeerAddr => $server, |
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Proto => 'tcp', |
Proto => 'tcp', |
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) || die $!; |
) || die $!; |
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bless($self, $class); |
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$self; |
$self; |
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} |
} |
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=head1 Connection Handling |
my $bulk_command = { |
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set => 1, setnx => 1, |
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rpush => 1, lpush => 1, |
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lset => 1, lrem => 1, |
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sadd => 1, srem => 1, |
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sismember => 1, |
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echo => 1, |
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getset => 1, |
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smove => 1, |
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zadd => 1, |
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zrem => 1, |
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zscore => 1, |
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zincrby => 1, |
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append => 1, |
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}; |
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=head2 quit |
# we don't want DESTROY to fallback into AUTOLOAD |
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sub DESTROY {} |
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$r->quit; |
our $AUTOLOAD; |
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sub AUTOLOAD { |
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my $self = shift; |
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=cut |
my $sock = $self->{sock} || die "no server connected"; |
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sub quit { |
my $command = $AUTOLOAD; |
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my $self = shift; |
$command =~ s/.*://; |
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warn "## $command ",Dumper(@_) if $self->{debug}; |
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my $send; |
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close( $sock ) || warn $!; |
if ( defined $bulk_command->{$command} ) { |
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my $value = pop; |
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$value = '' if ! defined $value; |
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$send |
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= uc($command) |
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. ' ' |
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. join(' ', @_) |
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. ' ' |
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. length( $value ) |
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. "\r\n$value\r\n" |
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; |
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} else { |
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$send |
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= uc($command) |
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. ' ' |
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. join(' ', @_) |
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. "\r\n" |
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; |
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} |
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warn ">> $send" if $self->{debug}; |
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print $sock $send; |
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if ( $command eq 'quit' ) { |
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close( $sock ) || die "can't close socket: $!"; |
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return 1; |
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} |
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my $result = <$sock> || die "can't read socket: $!"; |
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warn "<< $result" if $self->{debug}; |
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my $type = substr($result,0,1); |
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$result = substr($result,1,-2); |
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if ( $command eq 'info' ) { |
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my $hash; |
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foreach my $l ( split(/\r\n/, $self->__read_bulk($result) ) ) { |
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my ($n,$v) = split(/:/, $l, 2); |
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$hash->{$n} = $v; |
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} |
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return $hash; |
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} elsif ( $command eq 'keys' ) { |
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my $keys = $self->__read_bulk($result); |
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return split(/\s/, $keys) if $keys; |
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return; |
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} |
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if ( $type eq '-' ) { |
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confess "[$command] $result"; |
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} elsif ( $type eq '+' ) { |
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return $result; |
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} elsif ( $type eq '$' ) { |
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return $self->__read_bulk($result); |
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} elsif ( $type eq '*' ) { |
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return $self->__read_multi_bulk($result); |
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} elsif ( $type eq ':' ) { |
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return $result; # FIXME check if int? |
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} else { |
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confess "unknown type: $type", $self->__read_line(); |
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} |
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} |
} |
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=head2 ping |
sub __read_bulk { |
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my ($self,$len) = @_; |
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return undef if $len < 0; |
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$r->ping || die "no server?"; |
my $v; |
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if ( $len > 0 ) { |
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read($self->{sock}, $v, $len) || die $!; |
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warn "<< ",Dumper($v),$/ if $self->{debug}; |
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} |
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my $crlf; |
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read($self->{sock}, $crlf, 2); # skip cr/lf |
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return $v; |
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} |
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=cut |
sub __read_multi_bulk { |
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my ($self,$size) = @_; |
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return undef if $size < 0; |
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my $sock = $self->{sock}; |
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$size--; |
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my @list = ( 0 .. $size ); |
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foreach ( 0 .. $size ) { |
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$list[ $_ ] = $self->__read_bulk( substr(<$sock>,1,-2) ); |
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} |
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sub ping { |
warn "## list = ", Dumper( @list ) if $self->{debug}; |
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print $sock "PING\r\n"; |
return @list; |
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my $pong = <$sock>; |
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die "ping failed, got ", dump($pong) unless $pong eq "+PONG\r\n"; |
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} |
} |
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1; |
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__END__ |
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=head1 Connection Handling |
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=head2 quit |
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$r->quit; |
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=head2 ping |
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$r->ping || die "no server?"; |
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=head1 Commands operating on string values |
=head1 Commands operating on string values |
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=head2 set |
=head2 set |
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$r->set( foo => 'bar', $new ); |
$r->set( foo => 'bar' ); |
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=cut |
$r->setnx( foo => 42 ); |
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sub set { |
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my ( $self, $k, $v, $new ) = @_; |
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print $sock ( $new ? "SETNX" : "SET" ) . " $k " . length($v) . "\r\n$v\r\n"; |
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my $ok = <$sock>; |
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confess dump($ok) unless $ok eq "+OK\r\n"; |
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} |
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=head2 get |
=head2 get |
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my $value = $r->get( 'foo' ); |
my $value = $r->get( 'foo' ); |
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=cut |
=head2 mget |
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sub get { |
my @values = $r->mget( 'foo', 'bar', 'baz' ); |
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my ( $self, $k ) = @_; |
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print $sock "GET $k\r\n"; |
=head2 incr |
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my $len = <$sock>; |
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# warn "# len: ",dump($len); |
$r->incr('counter'); |
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return undef if $len eq "nil\r\n"; |
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my $v; |
$r->incrby('tripplets', 3); |
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read($sock, $v, $len) || die $!; |
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# warn "# v: ",dump($v); |
=head2 decr |
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my $crlf; |
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read($sock, $crlf, 2); # skip cr/lf |
$r->decr('counter'); |
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return $v; |
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} |
$r->decrby('tripplets', 3); |
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=head2 exists |
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$r->exists( 'key' ) && print "got key!"; |
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=head2 del |
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$r->del( 'key' ) || warn "key doesn't exist"; |
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=head2 type |
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$r->type( 'key' ); # = string |
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=head1 Commands operating on the key space |
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=head2 keys |
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my @keys = $r->keys( '*glob_pattern*' ); |
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=head2 randomkey |
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my $key = $r->randomkey; |
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=head2 rename |
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my $ok = $r->rename( 'old-key', 'new-key', $new ); |
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=head2 dbsize |
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my $nr_keys = $r->dbsize; |
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=head1 Commands operating on lists |
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See also L<Redis::List> for tie interface. |
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=head2 rpush |
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$r->rpush( $key, $value ); |
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=head2 lpush |
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$r->lpush( $key, $value ); |
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=head2 llen |
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$r->llen( $key ); |
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=head2 lrange |
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my @list = $r->lrange( $key, $start, $end ); |
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=head2 ltrim |
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my $ok = $r->ltrim( $key, $start, $end ); |
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=head2 lindex |
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$r->lindex( $key, $index ); |
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=head2 lset |
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$r->lset( $key, $index, $value ); |
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=head2 lrem |
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my $modified_count = $r->lrem( $key, $count, $value ); |
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=head2 lpop |
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my $value = $r->lpop( $key ); |
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=head2 rpop |
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my $value = $r->rpop( $key ); |
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=head1 Commands operating on sets |
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=head2 sadd |
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$r->sadd( $key, $member ); |
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=head2 srem |
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$r->srem( $key, $member ); |
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=head2 scard |
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my $elements = $r->scard( $key ); |
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=head2 sismember |
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$r->sismember( $key, $member ); |
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=head2 sinter |
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$r->sinter( $key1, $key2, ... ); |
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=head2 sinterstore |
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my $ok = $r->sinterstore( $dstkey, $key1, $key2, ... ); |
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=head1 Multiple databases handling commands |
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=head2 select |
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$r->select( $dbindex ); # 0 for new clients |
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=head2 move |
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$r->move( $key, $dbindex ); |
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=head2 flushdb |
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$r->flushdb; |
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=head2 flushall |
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$r->flushall; |
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=head1 Sorting |
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=head2 sort |
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$r->sort("key BY pattern LIMIT start end GET pattern ASC|DESC ALPHA'); |
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=head1 Persistence control commands |
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=head2 save |
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$r->save; |
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=head2 bgsave |
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$r->bgsave; |
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=head2 lastsave |
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$r->lastsave; |
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=head2 shutdown |
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$r->shutdown; |
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=head1 Remote server control commands |
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=head2 info |
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my $info_hash = $r->info; |
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=head1 AUTHOR |
=head1 AUTHOR |
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You can find documentation for this module with the perldoc command. |
You can find documentation for this module with the perldoc command. |
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perldoc Redis |
perldoc Redis |
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perldoc Redis::List |
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perldoc Redis::Hash |
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You can also look for information at: |
You can also look for information at: |
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=head1 COPYRIGHT & LICENSE |
=head1 COPYRIGHT & LICENSE |
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Copyright 2009 Dobrica Pavlinusic, all rights reserved. |
Copyright 2009-2010 Dobrica Pavlinusic, all rights reserved. |
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This program is free software; you can redistribute it and/or modify it |
This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
under the same terms as Perl itself. |