warn "## bulk len: ",dump($len);
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);
+ }
my $crlf;
read($sock, $crlf, 2); # skip cr/lf
return $v;
_sock_read_bulk();
}
-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";
}
my $self = shift;
warn "## _sock_send_ok ",dump( @_ );
print $sock join(' ',@_) . "\r\n";
- _sock_ok();
+ __sock_ok();
+}
+
+sub __sock_send_bulk_raw {
+ my $self = shift;
+ warn "## _sock_send_bulk ",dump( @_ );
+ 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();
+ __sock_send_bulk_raw( @_ );
+ __sock_ok();
}
+sub _sock_send_bulk_number {
+ __sock_send_bulk_raw( @_ );
+ my $v = _sock_result();
+ confess $v unless $v =~ m{^\-?\d+$};
+ return $v;
+}
=head1 Connection Handling
return @list;
}
+=head2 ltrim
+
+ my $ok = $r->ltrim( $key, $start, $end );
+
+=cut
+
+sub ltrim {
+ my ( $self, $key, $start, $end ) = @_;
+ $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 );
+}
+
=head1 AUTHOR
Dobrica Pavlinusic, C<< <dpavlin at rot13.org> >>