protocol auto-discovery

[Dustin Sallings]

	It's been pointed out to me that some people would like to read the  
diffs.  I found a trac install at danga that might help:

	This is the (most) relevant change:

		http://code.sixapart.com/trac/memcached/changeset/732

	Specifically, setup_bin_protocol and setup_ascii_protocol feel a  
little fragile as both need to reuse the byte that was read to detect  
stuff.


On Feb 29, 2008, at 18:51, Dustin Sallings wrote:

>
> 	I just committed the protocol autodiscovery stuff into the binary  
> tree.  The -B option is gone, so just connect to the thing and say  
> what you've got to say.
>
> 	I considered having it negotiate per-command.  If someone else  
> really wants to be able to send multiple commands in different  
> protocols on the same connection, it's possible, but pipelining will  
> make you a bit unhappy.
>
> 	The negotiation isn't free, and is slightly ugly (I read 1 byte and  
> then shove it into the appropriate protocol-specific location).  The  
> nread and command read buffer handling is a bit too different at the  
> moment to do anything much better.  I figured it doesn't matter too  
> much at the moment.
>
> 	Note that it's theoretically possible to pin the server to one  
> protocol or the other and avoid negotiation.
>
> 	I tested this by running my java client test through it.  That test  
> both protocols over ipv4 and ipv6 with lots of pipelining and other  
> such nonsense.  You would be a fool to not deploy this to production  
> immediately.
>
> -- 
> Dustin Sallings
>
>
>
>


-- 
Dustin Sallings