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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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our $sock; |
my $r = Redis->new( server => '192.168.0.1:6379', debug = 0 ); |
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my $server = '127.0.0.1:6379'; |
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=cut |
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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 $server"; |
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$sock ||= IO::Socket::INET->new( |
$self->{sock} = IO::Socket::INET->new( |
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PeerAddr => $server, |
PeerAddr => $self->{server} || $ENV{REDIS_SERVER} || '127.0.0.1:6379', |
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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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sub _sock_result { |
my $bulk_command = { |
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my $result = <$sock>; |
set => 1, setnx => 1, |
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warn "# result: ",dump( $result ); |
rpush => 1, lpush => 1, |
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$result =~ s{\r\n$}{} || warn "can't find cr/lf"; |
lset => 1, lrem => 1, |
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return $result; |
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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# we don't want DESTROY to fallback into AUTOLOAD |
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sub DESTROY {} |
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our $AUTOLOAD; |
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sub AUTOLOAD { |
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my $self = shift; |
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use bytes; |
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my $sock = $self->{sock} || die "no server connected"; |
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my $command = $AUTOLOAD; |
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$command =~ s/.*://; |
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warn "## $command ",Dumper(@_) if $self->{debug}; |
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my $send; |
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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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sub _sock_read_bulk { |
sub __read_bulk { |
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my $len = <$sock>; |
my ($self,$len) = @_; |
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warn "## bulk len: ",dump($len); |
return undef if $len < 0; |
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return undef if $len eq "nil\r\n"; |
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my $v; |
my $v; |
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read($sock, $v, $len) || die $!; |
if ( $len > 0 ) { |
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warn "## bulk v: ",dump($v); |
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; |
my $crlf; |
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read($sock, $crlf, 2); # skip cr/lf |
read($self->{sock}, $crlf, 2); # skip cr/lf |
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return $v; |
return $v; |
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} |
} |
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sub _sock_result_bulk { |
sub __read_multi_bulk { |
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my $self = shift; |
my ($self,$size) = @_; |
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warn "## _sock_result_bulk ",dump( @_ ); |
return undef if $size < 0; |
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print $sock join(' ',@_) . "\r\n"; |
my $sock = $self->{sock}; |
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_sock_read_bulk(); |
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} |
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sub _sock_ok { |
$size--; |
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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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sub _sock_send { |
my @list = ( 0 .. $size ); |
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my $self = shift; |
foreach ( 0 .. $size ) { |
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warn "## _sock_send ",dump( @_ ); |
$list[ $_ ] = $self->__read_bulk( substr(<$sock>,1,-2) ); |
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print $sock join(' ',@_) . "\r\n"; |
} |
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_sock_result(); |
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} |
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sub _sock_send_ok { |
warn "## list = ", Dumper( @list ) if $self->{debug}; |
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my $self = shift; |
return @list; |
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warn "## _sock_send_ok ",dump( @_ ); |
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print $sock join(' ',@_) . "\r\n"; |
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_sock_ok(); |
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} |
} |
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sub _sock_send_bulk { |
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my ( $self, $command, $key, $value ) = @_; |
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print $sock "$command $key " . length($value) . "\r\n$value\r\n"; |
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_sock_ok(); |
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} |
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__END__ |
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=head1 Connection Handling |
=head1 Connection Handling |
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$r->quit; |
$r->quit; |
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=cut |
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sub quit { |
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my $self = shift; |
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close( $sock ) || warn $!; |
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} |
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=head2 ping |
=head2 ping |
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$r->ping || die "no server?"; |
$r->ping || die "no server?"; |
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=cut |
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sub ping { |
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print $sock "PING\r\n"; |
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my $pong = <$sock>; |
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die "ping failed, got ", dump($pong) unless $pong eq "+PONG\r\n"; |
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} |
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=head1 Commands operating on string values |
=head1 Commands operating on string values |
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=head2 set |
=head2 set |
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$r->set( foo => 'bar', $new ); |
$r->set( foo => 'bar' ); |
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=cut |
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sub set { |
$r->setnx( foo => 42 ); |
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my ( $self, $key, $value, $new ) = @_; |
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$self->_sock_send_bulk( "SET" . ( $new ? 'NX' : '' ), $key, $value ); |
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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 $self = shift; |
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$self->_sock_result_bulk('GET', @_); |
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} |
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=head2 incr |
=head2 incr |
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$r->incr('counter'); |
$r->incr('counter'); |
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$r->incr('tripplets', 3); |
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=cut |
$r->incrby('tripplets', 3); |
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sub incr { |
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my $self = shift; |
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$self->_sock_send( 'INCR' . ( $#_ ? 'BY' : '' ), @_ ); |
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} |
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218 |
=head2 decr |
=head2 decr |
219 |
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220 |
$r->decr('counter'); |
$r->decr('counter'); |
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$r->decr('tripplets', 3); |
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222 |
=cut |
$r->decrby('tripplets', 3); |
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sub decr { |
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my $self = shift; |
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$self->_sock_send( 'DECR' . ( $#_ ? 'BY' : '' ), @_ ); |
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} |
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=head2 exists |
=head2 exists |
225 |
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226 |
$r->exists( 'key' ) && print "got key!"; |
$r->exists( 'key' ) && print "got key!"; |
227 |
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=cut |
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sub exists { |
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my ( $self, $key ) = @_; |
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$self->_sock_send( 'EXISTS', $key ); |
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} |
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=head2 del |
=head2 del |
229 |
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230 |
$r->del( 'key' ) || warn "key doesn't exist"; |
$r->del( 'key' ) || warn "key doesn't exist"; |
231 |
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=cut |
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sub del { |
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my ( $self, $key ) = @_; |
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$self->_sock_send( 'DEL', $key ); |
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} |
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232 |
=head2 type |
=head2 type |
233 |
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234 |
$r->type( 'key' ); # = string |
$r->type( 'key' ); # = string |
235 |
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=cut |
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sub type { |
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my ( $self, $key ) = @_; |
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$self->_sock_send( 'TYPE', $key ); |
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} |
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236 |
=head1 Commands operating on the key space |
=head1 Commands operating on the key space |
237 |
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238 |
=head2 keys |
=head2 keys |
239 |
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240 |
my @keys = $r->keys( '*glob_pattern*' ); |
my @keys = $r->keys( '*glob_pattern*' ); |
241 |
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=cut |
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sub keys { |
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my ( $self, $glob ) = @_; |
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return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob )); |
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} |
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242 |
=head2 randomkey |
=head2 randomkey |
243 |
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244 |
my $key = $r->randomkey; |
my $key = $r->randomkey; |
245 |
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=cut |
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sub randomkey { |
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my ( $self ) = @_; |
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$self->_sock_send( 'RANDOMKEY' ); |
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} |
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246 |
=head2 rename |
=head2 rename |
247 |
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248 |
my $ok = $r->rename( 'old-key', 'new-key', $new ); |
my $ok = $r->rename( 'old-key', 'new-key', $new ); |
249 |
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=cut |
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sub rename { |
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my ( $self, $old, $new, $nx ) = @_; |
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$self->_sock_send_ok( 'RENAME' . ( $nx ? 'NX' : '' ), $old, $new ); |
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} |
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250 |
=head2 dbsize |
=head2 dbsize |
251 |
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252 |
my $nr_keys = $r->dbsize; |
my $nr_keys = $r->dbsize; |
253 |
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=cut |
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sub dbsize { |
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my ( $self ) = @_; |
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$self->_sock_send('DBSIZE'); |
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} |
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254 |
=head1 Commands operating on lists |
=head1 Commands operating on lists |
255 |
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256 |
|
See also L<Redis::List> for tie interface. |
257 |
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258 |
=head2 rpush |
=head2 rpush |
259 |
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260 |
$r->rpush( $key, $value ); |
$r->rpush( $key, $value ); |
261 |
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=cut |
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sub rpush { |
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my ( $self, $key, $value ) = @_; |
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$self->_sock_send_bulk('RPUSH', $key, $value); |
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} |
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262 |
=head2 lpush |
=head2 lpush |
263 |
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264 |
$r->lpush( $key, $value ); |
$r->lpush( $key, $value ); |
265 |
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=cut |
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sub lpush { |
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my ( $self, $key, $value ) = @_; |
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$self->_sock_send_bulk('LPUSH', $key, $value); |
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} |
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266 |
=head2 llen |
=head2 llen |
267 |
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268 |
$r->llen( $key ); |
$r->llen( $key ); |
269 |
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=cut |
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sub llen { |
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my ( $self, $key ) = @_; |
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$self->_sock_send( 'LLEN', $key ); |
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} |
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270 |
=head2 lrange |
=head2 lrange |
271 |
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272 |
my @list = $r->lrange( $key, $start, $end ); |
my @list = $r->lrange( $key, $start, $end ); |
273 |
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274 |
=cut |
=head2 ltrim |
275 |
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276 |
sub lrange { |
my $ok = $r->ltrim( $key, $start, $end ); |
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my ( $self, $key, $start, $end ) = @_; |
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my $size = $self->_sock_send('LRANGE', $key, $start, $end); |
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277 |
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278 |
confess $size unless $size > 0; |
=head2 lindex |
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$size--; |
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279 |
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|
280 |
my @list = ( 0 .. $size ); |
$r->lindex( $key, $index ); |
|
foreach ( 0 .. $size ) { |
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$list[ $_ ] = _sock_read_bulk(); |
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} |
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281 |
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|
282 |
warn "## lrange $key $start $end = [$size] ", dump( @list ); |
=head2 lset |
283 |
return @list; |
|
284 |
} |
$r->lset( $key, $index, $value ); |
285 |
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286 |
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=head2 lrem |
287 |
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288 |
|
my $modified_count = $r->lrem( $key, $count, $value ); |
289 |
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290 |
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=head2 lpop |
291 |
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292 |
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my $value = $r->lpop( $key ); |
293 |
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294 |
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=head2 rpop |
295 |
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296 |
|
my $value = $r->rpop( $key ); |
297 |
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298 |
|
=head1 Commands operating on sets |
299 |
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300 |
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=head2 sadd |
301 |
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302 |
|
$r->sadd( $key, $member ); |
303 |
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304 |
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=head2 srem |
305 |
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306 |
|
$r->srem( $key, $member ); |
307 |
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308 |
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=head2 scard |
309 |
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310 |
|
my $elements = $r->scard( $key ); |
311 |
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312 |
|
=head2 sismember |
313 |
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314 |
|
$r->sismember( $key, $member ); |
315 |
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316 |
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=head2 sinter |
317 |
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318 |
|
$r->sinter( $key1, $key2, ... ); |
319 |
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320 |
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=head2 sinterstore |
321 |
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322 |
|
my $ok = $r->sinterstore( $dstkey, $key1, $key2, ... ); |
323 |
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324 |
|
=head1 Multiple databases handling commands |
325 |
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326 |
|
=head2 select |
327 |
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328 |
|
$r->select( $dbindex ); # 0 for new clients |
329 |
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330 |
|
=head2 move |
331 |
|
|
332 |
|
$r->move( $key, $dbindex ); |
333 |
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334 |
|
=head2 flushdb |
335 |
|
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336 |
|
$r->flushdb; |
337 |
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338 |
|
=head2 flushall |
339 |
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|
340 |
|
$r->flushall; |
341 |
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342 |
|
=head1 Sorting |
343 |
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344 |
|
=head2 sort |
345 |
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346 |
|
$r->sort("key BY pattern LIMIT start end GET pattern ASC|DESC ALPHA'); |
347 |
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348 |
|
=head1 Persistence control commands |
349 |
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=head2 save |
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$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. |