[zeromq-dev] To use zsock_signal or not to use zsock_signal

[Michal Vyskocil]

Hi,

thanks for an answer - make a sense perfectly!

Michal

On Mon, Jan 11, 2016 at 10:54 AM, Pieter Hintjens <ph at imatix.com> wrote:
> There are a few patterns. For simple commands, no handshaking is
> needed. The default is to handshake (with a signal, which is a special
> short message) only at actor startup and at destruction.
>
> For more complex protocols, or for cases where you need to wait for
> command completion, it's a good idea to switch to fully synchronous,
> with handshaking on every command. This is the zauth case. If you
> configure security and don't wait for that to end, things get
> confused.
>
> And then for complex protocols + data flow, we open a second socket to
> the actor on which we send data (in one or both directions), which is
> async and not handshaked.
>
> The mlm_server API falls into the "simple" category.
>
>
>
>
>
> On Mon, Jan 11, 2016 at 10:32 AM, Michal Vyskocil
> <michal.vyskocil at gmail.com> wrote:
>> Hi,
>>
>> I have been exploring usage of actors in our project, so I started to
>> model some parts as actors. To setup it, there is a simple protocol
>> inspired by mlm_server ("VERBOSE", "CONNECT", "CONFIG", ...)
>>
>> It seems that there are two approaches
>> 1.) mlm_server (https://github.com/zeromq/malamute/blob/master/src/mlm_server_engine.inc#L1395)
>> 2.) zauth (https://github.com/zeromq/czmq/blob/master/src/zauth.c#L158)
>>
>> While zauth signals end of command processing by zsock_signal,
>> mlm_server don't do that.
>>
>> Which approach is recommended? As we have had some timing issues and
>> using zclock_sleep does not looks good, using zsock_signal seems like
>> a better way to handle actor's configuration.
>>
>> --
>> best regards
>>      Michal Vyskocil
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-- 
best regards
     Michal Vyskocil