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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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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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This version support git version of Redis available at |
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L<git://github.com/antirez/redis> |
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use Redis; |
use Redis; |
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my $r = Redis->new(); |
my $r = Redis->new(); |
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=head1 FUNCTIONS |
=head1 FUNCTIONS |
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=head2 new |
=head2 new |
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=cut |
=cut |
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our $debug = $ENV{REDIS} || 0; |
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our $sock; |
our $sock; |
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my $server = '127.0.0.1:6379'; |
my $server = '127.0.0.1:6379'; |
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$self; |
$self; |
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} |
} |
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sub _sock_result { |
sub __sock_result { |
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my $result = <$sock>; |
my $result = <$sock>; |
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warn "# result: ",dump( $result ); |
warn "## result: ",dump( $result ) if $debug; |
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$result =~ s{\r\n$}{} || warn "can't find cr/lf"; |
$result =~ s{\r\n$}{} || warn "can't find cr/lf"; |
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return $result; |
return $result; |
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} |
} |
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sub _sock_result_bulk { |
sub __sock_read_bulk { |
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my $len = <$sock>; |
my $len = <$sock>; |
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warn "# len: ",dump($len); |
warn "## bulk len: ",dump($len) if $debug; |
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return undef if $len eq "nil\r\n"; |
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 ( $len > 0 ) { |
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warn "# v: ",dump($v); |
read($sock, $v, $len) || die $!; |
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warn "## bulk v: ",dump($v) if $debug; |
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} |
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my $crlf; |
my $crlf; |
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read($sock, $crlf, 2); # skip cr/lf |
read($sock, $crlf, 2); # skip cr/lf |
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return $v; |
return $v; |
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} |
} |
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sub _sock_ok { |
sub _sock_result_bulk { |
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my $self = shift; |
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warn "## _sock_result_bulk ",dump( @_ ) if $debug; |
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print $sock join(' ',@_) . "\r\n"; |
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__sock_read_bulk(); |
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} |
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sub _sock_result_bulk_list { |
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my $self = shift; |
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warn "## _sock_result_bulk_list ",dump( @_ ) if $debug; |
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my $size = $self->_sock_send( @_ ); |
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confess $size unless $size > 0; |
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$size--; |
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my @list = ( 0 .. $size ); |
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foreach ( 0 .. $size ) { |
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$list[ $_ ] = __sock_read_bulk(); |
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} |
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warn "## list = ", dump( @list ) if $debug; |
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return @list; |
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} |
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sub __sock_ok { |
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my $ok = <$sock>; |
my $ok = <$sock>; |
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return undef if $ok eq "nil\r\n"; |
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confess dump($ok) unless $ok eq "+OK\r\n"; |
confess dump($ok) unless $ok eq "+OK\r\n"; |
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} |
} |
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sub _sock_send { |
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my $self = shift; |
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warn "## _sock_send ",dump( @_ ) if $debug; |
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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 { |
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my $self = shift; |
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warn "## _sock_send_ok ",dump( @_ ) if $debug; |
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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_raw { |
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warn "## _sock_send_bulk ",dump( @_ ) if $debug; |
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my $value = pop; |
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$value = '' unless defined $value; # FIXME errr? nil? |
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print $sock join(' ',@_) . ' ' . length($value) . "\r\n$value\r\n" |
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} |
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sub _sock_send_bulk { |
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my $self = shift; |
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__sock_send_bulk_raw( @_ ); |
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__sock_ok(); |
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} |
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sub _sock_send_bulk_number { |
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my $self = shift; |
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__sock_send_bulk_raw( @_ ); |
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my $v = __sock_result(); |
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confess $v unless $v =~ m{^\-?\d+$}; |
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return $v; |
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} |
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=head1 Connection Handling |
=head1 Connection Handling |
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=head2 quit |
=head2 quit |
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=cut |
=cut |
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sub set { |
sub set { |
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my ( $self, $k, $v, $new ) = @_; |
my ( $self, $key, $value, $new ) = @_; |
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print $sock "SET" . ( $new ? 'NX' : '' ) . " $k " . length($v) . "\r\n$v\r\n"; |
$self->_sock_send_bulk( "SET" . ( $new ? 'NX' : '' ), $key, $value ); |
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_sock_ok(); |
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} |
} |
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=head2 get |
=head2 get |
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=cut |
=cut |
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sub get { |
sub get { |
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my ( $self, $k ) = @_; |
my $self = shift; |
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print $sock "GET $k\r\n"; |
$self->_sock_result_bulk('GET', @_); |
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_sock_result_bulk(); |
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} |
} |
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=head2 incr |
=head2 incr |
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sub incr { |
sub incr { |
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my ( $self, $key, $value ) = @_; |
my $self = shift; |
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if ( defined $value ) { |
$self->_sock_send( 'INCR' . ( $#_ ? 'BY' : '' ), @_ ); |
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print $sock "INCRBY $key $value\r\n"; |
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} else { |
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print $sock "INCR $key\r\n"; |
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} |
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_sock_result(); |
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} |
} |
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=head2 decr |
=head2 decr |
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=cut |
=cut |
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sub decr { |
sub decr { |
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my ( $self, $key, $value ) = @_; |
my $self = shift; |
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if ( defined $value ) { |
$self->_sock_send( 'DECR' . ( $#_ ? 'BY' : '' ), @_ ); |
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print $sock "DECRBY $key $value\r\n"; |
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} else { |
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print $sock "DECR $key\r\n"; |
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} |
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_sock_result(); |
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} |
} |
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=head2 exists |
=head2 exists |
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sub exists { |
sub exists { |
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my ( $self, $key ) = @_; |
my ( $self, $key ) = @_; |
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print $sock "EXISTS $key\r\n"; |
$self->_sock_send( 'EXISTS', $key ); |
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_sock_result(); |
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} |
} |
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=head2 del |
=head2 del |
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sub del { |
sub del { |
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my ( $self, $key ) = @_; |
my ( $self, $key ) = @_; |
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print $sock "DEL $key\r\n"; |
$self->_sock_send( 'DEL', $key ); |
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_sock_result(); |
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} |
} |
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=head2 type |
=head2 type |
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sub type { |
sub type { |
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my ( $self, $key ) = @_; |
my ( $self, $key ) = @_; |
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print $sock "TYPE $key\r\n"; |
$self->_sock_send( 'TYPE', $key ); |
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_sock_result(); |
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} |
} |
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=head1 Commands operating on the key space |
=head1 Commands operating on the key space |
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sub keys { |
sub keys { |
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my ( $self, $glob ) = @_; |
my ( $self, $glob ) = @_; |
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print $sock "KEYS $glob\r\n"; |
return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob )); |
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return split(/\s/, _sock_result_bulk()); |
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} |
} |
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=head2 randomkey |
=head2 randomkey |
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sub randomkey { |
sub randomkey { |
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my ( $self ) = @_; |
my ( $self ) = @_; |
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print $sock "RANDOMKEY\r\n"; |
$self->_sock_send( 'RANDOMKEY' ); |
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_sock_result(); |
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} |
} |
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=head2 rename |
=head2 rename |
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sub rename { |
sub rename { |
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my ( $self, $old, $new, $nx ) = @_; |
my ( $self, $old, $new, $nx ) = @_; |
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print $sock "RENAME" . ( $nx ? 'NX' : '' ) . " $old $new\r\n"; |
$self->_sock_send_ok( 'RENAME' . ( $nx ? 'NX' : '' ), $old, $new ); |
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_sock_ok(); |
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} |
} |
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=head2 dbsize |
=head2 dbsize |
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sub dbsize { |
sub dbsize { |
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my ( $self ) = @_; |
my ( $self ) = @_; |
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print $sock "DBSIZE\r\n"; |
$self->_sock_send('DBSIZE'); |
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_sock_result(); |
} |
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=head1 Commands operating on lists |
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See also L<Redis::List> for tie interface. |
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=head2 rpush |
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$r->rpush( $key, $value ); |
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=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, $value); |
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} |
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=head2 lpush |
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$r->lpush( $key, $value ); |
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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, $value); |
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} |
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=head2 llen |
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$r->llen( $key ); |
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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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=head2 lrange |
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my @list = $r->lrange( $key, $start, $end ); |
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=cut |
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sub lrange { |
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my ( $self, $key, $start, $end ) = @_; |
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$self->_sock_result_bulk_list('LRANGE', $key, $start, $end); |
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} |
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=head2 ltrim |
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my $ok = $r->ltrim( $key, $start, $end ); |
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=cut |
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sub ltrim { |
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my ( $self, $key, $start, $end ) = @_; |
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$self->_sock_send_ok( 'LTRIM', $key, $start, $end ); |
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} |
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=head2 lindex |
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$r->lindex( $key, $index ); |
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=cut |
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sub lindex { |
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my ( $self, $key, $index ) = @_; |
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$self->_sock_result_bulk( 'LINDEX', $key, $index ); |
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} |
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=head2 lset |
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$r->lset( $key, $index, $value ); |
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=cut |
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sub lset { |
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my ( $self, $key, $index, $value ) = @_; |
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$self->_sock_send_bulk( 'LSET', $key, $index, $value ); |
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} |
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=head2 lrem |
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my $modified_count = $r->lrem( $key, $count, $value ); |
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=cut |
383 |
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sub lrem { |
385 |
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my ( $self, $key, $count, $value ) = @_; |
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$self->_sock_send_bulk_number( 'LREM', $key, $count, $value ); |
387 |
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} |
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=head2 lpop |
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my $value = $r->lpop( $key ); |
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=cut |
394 |
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sub lpop { |
396 |
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my ( $self, $key ) = @_; |
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$self->_sock_result_bulk( 'LPOP', $key ); |
398 |
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} |
399 |
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=head2 rpop |
401 |
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my $value = $r->rpop( $key ); |
403 |
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=cut |
405 |
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406 |
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sub rpop { |
407 |
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my ( $self, $key ) = @_; |
408 |
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$self->_sock_result_bulk( 'RPOP', $key ); |
409 |
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} |
410 |
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=head1 Commands operating on sets |
412 |
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=head2 sadd |
414 |
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$r->sadd( $key, $member ); |
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=cut |
418 |
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sub sadd { |
420 |
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my ( $self, $key, $member ) = @_; |
421 |
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$self->_sock_send_bulk_number( 'SADD', $key, $member ); |
422 |
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} |
423 |
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=head2 srem |
425 |
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426 |
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$r->srem( $key, $member ); |
427 |
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=cut |
429 |
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430 |
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sub srem { |
431 |
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my ( $self, $key, $member ) = @_; |
432 |
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$self->_sock_send_bulk_number( 'SREM', $key, $member ); |
433 |
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} |
434 |
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=head2 scard |
436 |
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437 |
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my $elements = $r->scard( $key ); |
438 |
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439 |
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=cut |
440 |
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441 |
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sub scard { |
442 |
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my ( $self, $key ) = @_; |
443 |
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$self->_sock_send( 'SCARD', $key ); |
444 |
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} |
445 |
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=head2 sismember |
447 |
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448 |
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$r->sismember( $key, $member ); |
449 |
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450 |
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=cut |
451 |
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452 |
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sub sismember { |
453 |
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my ( $self, $key, $member ) = @_; |
454 |
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$self->_sock_send_bulk_number( 'SISMEMBER', $key, $member ); |
455 |
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} |
456 |
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457 |
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=head2 sinter |
458 |
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459 |
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$r->sinter( $key1, $key2, ... ); |
460 |
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461 |
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=cut |
462 |
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463 |
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sub sinter { |
464 |
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my $self = shift; |
465 |
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$self->_sock_result_bulk_list( 'SINTER', @_ ); |
466 |
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} |
467 |
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468 |
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=head2 sinterstore |
469 |
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470 |
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my $ok = $r->sinterstore( $dstkey, $key1, $key2, ... ); |
471 |
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472 |
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=cut |
473 |
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474 |
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sub sinterstore { |
475 |
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my $self = shift; |
476 |
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$self->_sock_send_ok( 'SINTERSTORE', @_ ); |
477 |
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} |
478 |
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479 |
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=head1 Multiple databases handling commands |
480 |
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|
481 |
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=head2 select |
482 |
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|
483 |
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$r->select( $dbindex ); # 0 for new clients |
484 |
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485 |
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=cut |
486 |
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487 |
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sub select { |
488 |
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my ($self,$dbindex) = @_; |
489 |
|
confess dump($dbindex) . 'not number' unless $dbindex =~ m{^\d+$}; |
490 |
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$self->_sock_send_ok( 'SELECT', $dbindex ); |
491 |
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} |
492 |
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493 |
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=head2 move |
494 |
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|
495 |
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$r->move( $key, $dbindex ); |
496 |
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497 |
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=cut |
498 |
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499 |
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sub move { |
500 |
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my ( $self, $key, $dbindex ) = @_; |
501 |
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$self->_sock_send( 'MOVE', $key, $dbindex ); |
502 |
} |
} |
503 |
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|
504 |
=head1 AUTHOR |
=head1 AUTHOR |