+
+### Socket operations
+
+sub __send_command {
+ my $self = shift;
+ my $cmd = uc(shift);
+ my $enc = $self->{encoding};
+ my $deb = $self->{debug};
+
+ warn "[SEND] $cmd ", Dumper([@_]) if $deb;
+
+ ## Encode command using multi-bulk format
+ my $n_elems = scalar(@_) + 1;
+ my $buf = "\*$n_elems\r\n";
+ for my $elem ($cmd, @_) {
+ my $bin = $enc ? encode($enc, $elem) : $elem;
+ $buf .= defined($bin) ? '$' . length($bin) . "\r\n$bin\r\n" : "\$-1\r\n";
+ }
+
+ ## Send command, take care for partial writes
+ warn "[SEND RAW] $buf" if $deb;
+ my $sock = $self->{sock} || confess("Not connected to any server");
+ while ($buf) {
+ my $len = syswrite $sock, $buf, length $buf;
+ confess("Could not write to Redis server: $!")
+ unless $len;
+ substr $buf, 0, $len, "";
+ }
+
+ return;
+}
+