=head1 NAME
-Redis - The great new Redis!
+Redis - perl binding for Redis database
=cut
Pure perl bindings for L<http://code.google.com/p/redis/>
+This version support git version of Redis available at
+L<git://github.com/antirez/redis>
+
use Redis;
my $r = Redis->new();
-
-
-
=head1 FUNCTIONS
=head2 new
=cut
+our $debug = $ENV{REDIS} || 0;
+
our $sock;
my $server = '127.0.0.1:6379';
$self;
}
-sub _sock_result {
+sub __sock_result {
my $result = <$sock>;
- warn "# result: ",dump( $result );
+ warn "## result: ",dump( $result ) if $debug;
$result =~ s{\r\n$}{} || warn "can't find cr/lf";
return $result;
}
-sub _sock_read_bulk {
+sub __sock_read_bulk {
my $len = <$sock>;
- warn "## bulk len: ",dump($len);
+ warn "## bulk len: ",dump($len) if $debug;
return undef if $len eq "nil\r\n";
my $v;
- read($sock, $v, $len) || die $!;
- warn "## bulk v: ",dump($v);
+ if ( $len > 0 ) {
+ read($sock, $v, $len) || die $!;
+ warn "## bulk v: ",dump($v) if $debug;
+ }
my $crlf;
read($sock, $crlf, 2); # skip cr/lf
return $v;
sub _sock_result_bulk {
my $self = shift;
- warn "## _sock_result_bulk ",dump( @_ );
+ warn "## _sock_result_bulk ",dump( @_ ) if $debug;
print $sock join(' ',@_) . "\r\n";
- _sock_read_bulk();
+ __sock_read_bulk();
+}
+
+sub _sock_result_bulk_list {
+ my $self = shift;
+ warn "## _sock_result_bulk_list ",dump( @_ ) if $debug;
+
+ my $size = $self->_sock_send( @_ );
+ confess $size unless $size > 0;
+ $size--;
+
+ my @list = ( 0 .. $size );
+ foreach ( 0 .. $size ) {
+ $list[ $_ ] = __sock_read_bulk();
+ }
+
+ warn "## list = ", dump( @list ) if $debug;
+ return @list;
}
-sub _sock_ok {
+sub __sock_ok {
my $ok = <$sock>;
+ return undef if $ok eq "nil\r\n";
confess dump($ok) unless $ok eq "+OK\r\n";
}
sub _sock_send {
my $self = shift;
- warn "## _sock_send ",dump( @_ );
+ warn "## _sock_send ",dump( @_ ) if $debug;
print $sock join(' ',@_) . "\r\n";
- _sock_result();
+ __sock_result();
}
sub _sock_send_ok {
my $self = shift;
- warn "## _sock_send_ok ",dump( @_ );
+ warn "## _sock_send_ok ",dump( @_ ) if $debug;
print $sock join(' ',@_) . "\r\n";
- _sock_ok();
+ __sock_ok();
+}
+
+sub __sock_send_bulk_raw {
+ warn "## _sock_send_bulk ",dump( @_ ) if $debug;
+ my $value = pop;
+ $value = '' unless defined $value; # FIXME errr? nil?
+ print $sock join(' ',@_) . ' ' . length($value) . "\r\n$value\r\n"
}
sub _sock_send_bulk {
- my ( $self, $command, $key, $value ) = @_;
- print $sock "$command $key " . length($value) . "\r\n$value\r\n";
- _sock_ok();
+ my $self = shift;
+ __sock_send_bulk_raw( @_ );
+ __sock_ok();
}
+sub _sock_send_bulk_number {
+ my $self = shift;
+ __sock_send_bulk_raw( @_ );
+ my $v = __sock_result();
+ confess $v unless $v =~ m{^\-?\d+$};
+ return $v;
+}
=head1 Connection Handling
sub get {
my $self = shift;
- $self->_sock_result_bulk('GET', @_);
+ $self->_sock_result_bulk('GET',@_);
+}
+
+=head2 mget
+
+ my @values = $r->get( 'foo', 'bar', 'baz' );
+
+=cut
+
+sub mget {
+ my $self = shift;
+ $self->_sock_result_bulk_list('MGET',@_);
}
=head2 incr
sub keys {
my ( $self, $glob ) = @_;
- return split(/\s/, $self->_sock_result_bulk( 'KEYS', $glob ));
+ my $keys = $self->_sock_result_bulk( 'KEYS', $glob );
+ return split(/\s/, $keys) if $keys;
+ return () if wantarray;
}
=head2 randomkey
=head1 Commands operating on lists
+See also L<Redis::List> for tie interface.
+
=head2 rpush
$r->rpush( $key, $value );
sub lrange {
my ( $self, $key, $start, $end ) = @_;
- my $size = $self->_sock_send('LRANGE', $key, $start, $end);
-
- confess $size unless $size > 0;
- $size--;
-
- my @list = ( 0 .. $size );
- foreach ( 0 .. $size ) {
- $list[ $_ ] = _sock_read_bulk();
- }
-
- warn "## lrange $key $start $end = [$size] ", dump( @list );
- return @list;
+ $self->_sock_result_bulk_list('LRANGE', $key, $start, $end);
}
=head2 ltrim
$self->_sock_send_ok( 'LTRIM', $key, $start, $end );
}
+=head2 lindex
+
+ $r->lindex( $key, $index );
+
+=cut
+
+sub lindex {
+ my ( $self, $key, $index ) = @_;
+ $self->_sock_result_bulk( 'LINDEX', $key, $index );
+}
+
+=head2 lset
+
+ $r->lset( $key, $index, $value );
+
+=cut
+
+sub lset {
+ my ( $self, $key, $index, $value ) = @_;
+ $self->_sock_send_bulk( 'LSET', $key, $index, $value );
+}
+
+=head2 lrem
+
+ my $modified_count = $r->lrem( $key, $count, $value );
+
+=cut
+
+sub lrem {
+ my ( $self, $key, $count, $value ) = @_;
+ $self->_sock_send_bulk_number( 'LREM', $key, $count, $value );
+}
+
+=head2 lpop
+
+ my $value = $r->lpop( $key );
+
+=cut
+
+sub lpop {
+ my ( $self, $key ) = @_;
+ $self->_sock_result_bulk( 'LPOP', $key );
+}
+
+=head2 rpop
+
+ my $value = $r->rpop( $key );
+
+=cut
+
+sub rpop {
+ my ( $self, $key ) = @_;
+ $self->_sock_result_bulk( 'RPOP', $key );
+}
+
+=head1 Commands operating on sets
+
+=head2 sadd
+
+ $r->sadd( $key, $member );
+
+=cut
+
+sub sadd {
+ my ( $self, $key, $member ) = @_;
+ $self->_sock_send_bulk_number( 'SADD', $key, $member );
+}
+
+=head2 srem
+
+ $r->srem( $key, $member );
+
+=cut
+
+sub srem {
+ my ( $self, $key, $member ) = @_;
+ $self->_sock_send_bulk_number( 'SREM', $key, $member );
+}
+
+=head2 scard
+
+ my $elements = $r->scard( $key );
+
+=cut
+
+sub scard {
+ my ( $self, $key ) = @_;
+ $self->_sock_send( 'SCARD', $key );
+}
+
+=head2 sismember
+
+ $r->sismember( $key, $member );
+
+=cut
+
+sub sismember {
+ my ( $self, $key, $member ) = @_;
+ $self->_sock_send_bulk_number( 'SISMEMBER', $key, $member );
+}
+
+=head2 sinter
+
+ $r->sinter( $key1, $key2, ... );
+
+=cut
+
+sub sinter {
+ my $self = shift;
+ $self->_sock_result_bulk_list( 'SINTER', @_ );
+}
+
+=head2 sinterstore
+
+ my $ok = $r->sinterstore( $dstkey, $key1, $key2, ... );
+
+=cut
+
+sub sinterstore {
+ my $self = shift;
+ $self->_sock_send_ok( 'SINTERSTORE', @_ );
+}
+
+=head1 Multiple databases handling commands
+
+=head2 select
+
+ $r->select( $dbindex ); # 0 for new clients
+
+=cut
+
+sub select {
+ my ($self,$dbindex) = @_;
+ confess dump($dbindex) . 'not number' unless $dbindex =~ m{^\d+$};
+ $self->_sock_send_ok( 'SELECT', $dbindex );
+}
+
+=head2 move
+
+ $r->move( $key, $dbindex );
+
+=cut
+
+sub move {
+ my ( $self, $key, $dbindex ) = @_;
+ $self->_sock_send( 'MOVE', $key, $dbindex );
+}
+
+=head2 flushdb
+
+ $r->flushdb;
+
+=cut
+
+sub flushdb {
+ my $self = shift;
+ $self->_sock_send_ok('FLUSHDB');
+}
+
+=head2 flushall
+
+ $r->flushall;
+
+=cut
+
+sub flushall {
+ my $self = shift;
+ $self->_sock_send_ok('flushall');
+}
+
+=head1 Sorting
+
+=head2 sort
+
+ $r->sort("key BY pattern LIMIT start end GET pattern ASC|DESC ALPHA');
+
+=cut
+
+sub sort {
+ my ( $self, $sort ) = @_;
+ $self->_sock_result_bulk_list( "SORT $sort" );
+}
+
+=head1 Persistence control commands
+
+=head2 save
+
+ $r->save;
+
+=cut
+
+sub save {
+ my $self = shift;
+ $self->_sock_send_ok( 'SAVE' );
+}
+
=head1 AUTHOR
Dobrica Pavlinusic, C<< <dpavlin at rot13.org> >>
projects / perl-Redis.git / blobdiff