[nanomsg] Re: Trying to implement "directory" pattern
- From: Paul Colomiets <paul@xxxxxxxxxxxxxx>
- To: Martin Sustrik <sustrik@xxxxxxxxxx>
- Date: Mon, 25 Feb 2013 22:55:32 +0200
Hi Martin,
On Mon, Feb 25, 2013 at 9:54 PM, Martin Sustrik <sustrik@xxxxxxxxxx> wrote:
>
> It doesn't block yet, because the subscription forwarding is not yet
>> implemented, but yes, I would say it should block.
>>
>> Well, I believe that all blocking calls should have a non-blocking
>> counter-parts. Having non-blocking counter-part for this one seems to
>> complicate API.
>>
>
> Good point. What's the alternative here?
>
> I can imagine not allowing unsubscriptions in pub/sub (only way to
> unsubscribe would be to close the socket). Then, instead of using
> SUBSCRIBE/UNSUBSCRIBE options, one can just send the subscription as a
> message.
Disabling UNSUBSCRIBE is bad solution. Too limited.
Another issue. If I call nn_shutdown and then nn_connect, the subscriptions
should be resent, am I right? When you would block in this case? Similar
thing may occur internally when TCP connection broken because of network
issues and reconnected.
--
Paul
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