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From Yann Ylavic <ylavic....@gmail.com>
Subject Re: problem with shared memory and directives for httpd
Date Thu, 04 Dec 2014 21:52:47 GMT
Hi,

to not depend on where you declare :

 <IfModule mod_kcache.c>
      KcacheEnabled On
 </IfModule>

you need to iterate over the server_rec list in post_config and
child_init hooks.

Please see attached modifications (where only a server_config is used).

Regards,
Yann.


On Thu, Dec 4, 2014 at 5:46 PM, nik600 <nik600@gmail.com> wrote:
> because i've tried with both or with only one.
>
> IE, if i use:
>
> module AP_MODULE_DECLARE_DATA kcache_module = {
> STANDARD20_MODULE_STUFF,NULL , NULL, create_server_conf, merge_conf,
> kcache_directives, register_hooks };
>
> i have the same behaviour
>
>
> 2014-12-04 17:32 GMT+01:00 Eric Johanson <ericj@valmarc.com>:
>
>> Okay but why are you managing the kcache_config structure with both the
>> per-directory AND the server-level functions?  You should decide if your
>> kcache_config is server-wide or if it is per-directory, and use only the
>> appropriate functions.
>> -Eric
>>
>>
>> From: nik600 [mailto:nik600@gmail.com]
>> Sent: Thursday, December 04, 2014 11:15 AM
>> To: modules-dev@httpd.apache.org
>> Subject: Re: problem with shared memory and directives for httpd
>>
>> Hi
>>
>> thanks for your reply.
>>
>> i've tried also with a merging function but i have the same behaviour.
>>
>> Attached the same example with also merge function.
>>
>> Maybe i'm doing something wrong in my merge function?
>>
>>
>> 2014-12-04 16:33 GMT+01:00 Eric Johanson <ericj@valmarc.com<mailto:
>> ericj@valmarc.com>>:
>> You have no merge function defined for your server-level config structure
>> (kcache_config).  I would definitely try implementing that function.
>> Otherwise, when apache goes to combine two levels of the config hierarchy
>> together, the resulting combination is likely to just be an empty version
>> of kcache_config, which sounds like it could be causing your problem.
>>
>> -Eric
>>
>>
>> From: nik600 [mailto:nik600@gmail.com<mailto:nik600@gmail.com>]
>> Sent: Thursday, December 04, 2014 10:05 AM
>> To: modules-dev@httpd.apache.org<mailto:modules-dev@httpd.apache.org>
>> Subject: problem with shared memory and directives for httpd
>>
>> Dear all
>>
>> i'm experiencing a problem with shared memory and i'm not able to figure
>> it out.
>>
>> i've got a segment of shared memory in my module config and seen that if
>> set some settings for the module in my configuration this memory isn't
>> available in the request process.
>>
>> i've also attached an example (very simplified and without any mutex, just
>> to show the case).
>>
>> i've noticed that if i have in my server configuration:
>>
>>  <IfModule mod_kcache.c>
>>       KcacheEnabled On
>> </IfModule>
>>
>> The memory segment is not availabe:
>>
>> >>[Thu Dec 04 15:26:15 2014] [crit] [client 127.0.0.1]
>> kcache_return_result invalid  config->s
>>
>> But if i comment this directive:
>>
>>  <IfModule mod_kcache.c>
>> #      KcacheEnabled On
>> </IfModule>
>>
>> The memory segment is available and gets updated:
>>
>> >>[Thu Dec 04 15:24:47 2014] [debug] src/mod_kcache.c(96): [client
>> 127.0.0.1] config->s->counter=68
>> >>[Thu Dec 04 15:24:48 2014] [debug] src/mod_kcache.c(96): [client
>> 127.0.0.1] config->s->counter=69
>> >>[Thu Dec 04 15:24:48 2014] [debug] src/mod_kcache.c(96): [client
>> 127.0.0.1] config->s->counter=70
>> ...
>>
>> i've attached the full example (100 lines of code)
>>
>> I'll appreciate any help, thank all in advance
>>
>> --
>> /*************/
>> nik600
>> http://www.kumbe.it
>>
>>
>>
>> --
>> /*************/
>> nik600
>> http://www.kumbe.it
>>
>
>
>
> --
> /*************/
> nik600
> http://www.kumbe.it

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