[Catalyst-dev] Catalyst test suite

[Andy Grundman]

OK I can't really comment on doing that... in my mind a Catalyst app  
should be portable to any engine, and not use POE things that would  
require a specific engine.  You might be better off writing a pure POE  
app using one of the several POE HTTP servers.

On May 6, 2008, at 2:20 PM, Yuri Shtil wrote:

> I agree that if the scope of a Catalyst request is to include an  
> action to finish, you are correct.
> However if the scope is to start an action, then an asynchronous  
> events loop should help.
>
> For example in case of a database query, if the controller uses  
> something like POE::Component::DBIAgent to send a query and return  
> immediately, the Catalyst request will "complete" without waiting  
> for the result. Granted the user will not see the "real" result  
> right away, but this can be handled via refresh etc.
>
> Andy Grundman wrote:
>> The POE engine also has a blocking problem, a really big one in  
>> fact, and is the reason I gave up on it.  What you want to do is  
>> currently not possible, a Catalyst request will generally block the  
>> whole process until it's finished executing.  The POE engine tried  
>> to use some tricks to get around parts of the blocking, but the  
>> core of your app code, and things such as database queries, are  
>> still going to block.
>>
>> On May 6, 2008, at 1:49 PM, Yuri Shtil wrote:
>>
>>> I take it back.
>>>
>>> As I said, I want to be able to integrate a Catalyst engine into  
>>> an events loop and was contemplating to write a new engine.
>>> I foresee a need for load balancing and since the fastcgi engine.  
>>> However I wanted to start with something that is  simple working  
>>> and supported.
>>> I guess I would go with HTTP-POE in spite the fact it is not  
>>> supported. The prefork engine will have the same blocking problem  
>>> in each forked subprocess, I guess.
>>>
>>> Andy Grundman wrote:
>>>> Oh for some reason I thought you were writing a new engine.  What  
>>>> problems are you having with the FastCGI engine?  There are  
>>>> already test scripts for testing lighttpd and Apache 1/2 with  
>>>> FastCGI.
>>>>
>>>> On May 6, 2008, at 1:30 PM, Yuri Shtil wrote:
>>>>
>>>>> Catalyst::Engine::FastCGI <http://www-homes.juniper.net/%7Eyuris/perldoc/lib/Catalyst/Engine/FastCGI.html 
>>>>> >
>>>>>
>>>>> Andy Grundman wrote:
>>>>>> What sort of engine are you working on?
>>>>>>
>>>>>> On May 6, 2008, at 1:13 PM, Yuri Shtil wrote:
>>>>>>
>>>>>>> I guess my question then would be:
>>>>>>> - how do I handle actions that take a while to execute, for  
>>>>>>> example if I need to talk to an another process that can take  
>>>>>>> a while to respond, is there a way to integrate the Catalyst  
>>>>>>> server into an external events loop be it POE, EV or something  
>>>>>>> else.
>>>>>>>
>>>>>>> Andy Grundman wrote:
>>>>>>>> I guess we weren't testing the same thing... I was running t/ 
>>>>>>>> optional_http-server.t not the POE test.  BTW, the POE engine  
>>>>>>>> is no longer supported (by me anyway), it's been deprecated  
>>>>>>>> in favor of the HTTP::Prefork engine.
>>>>>>