From: Joel VanderWerf <vjoel@...>
Date: 2006-08-31T09:19:49+09:00
Subject: Re: Drb and mystery ports (and Queue question)

Phil Tomson wrote:
> On 8/30/06, Joel VanderWerf <vjoel@path.berkeley.edu> wrote:
>> Phil Tomson wrote:
>> ...
>> > #client:
>> > require 'msgqueue'
>> > require 'drb'
>> >
>> > DRb.start_service()
>>   ^^^^^^^^^^^^^^^^^^^
>> This will request a free port from the OS, so that the client can
>> respond to requests from the server. (DRb is really pretty symmetrical.)
>> A request to the client is generated when, for example, the client calls
>> a method with a block, and the server yields to the block.
>>
> 
> but doesn't this tell it to use port 9759?:
> mq = DRbObject.new(nil, 'druby://localhost:9759')

That's the port on the server side, unless I'm confused.

Your client code didn't have an explicit port, so DRb will request a 
free one from the OS. The client-side port number will be sent to the 
server, so that the server can call back to the client.

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407