Re: [users@httpd] How to use shared memory btw mpm workers in custom module

[nik600 <ni...@gmail.com>]

i'm using 2.2.x i've implemented a shared memory segment using apr_shm_*
functions but i've noticed that if i access to this segment
in ap_hook_handler i can see it and operate with it, but
in ap_hook_translate_name the pointer to the shm segment is null.

Any idea or suggestion?

Thanks

2014-11-25 21:36 GMT+01:00 Eric Covener <co...@gmail.com>:

> On Tue, Nov 25, 2014 at 2:41 PM, nik600 <ni...@gmail.com> wrote:
> > Hi
> >
> > I've implemented a custom module to handle some translate hooks.
> >
> > I'd like to add some stats info so i need some shared memory between all
> the
> > workers.
> >
> > Can you point me to the right resources/documentation/example about it?
> >
> > Basically i'd like to increment some counters and then show them if i
> > receive a specific request.
>
> If you only need 2.4, you can see how mod_proxy_balancer uses the
> services of mod_slotmem. Otherwise, a good reference might be
> mod_proxy_balancer in 2.2.x.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
> For additional commands, e-mail: users-help@httpd.apache.org
>
>


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/*************/
nik600
http://www.kumbe.it

Re: [users@httpd] How to use shared memory btw mpm workers in custom module

[nik600 <ni...@gmail.com>]

ok, i've understand where is the problem:

if i have a directive configuration (ie):

static const command_rec directives[] = {
AP_INIT_TAKE1("KcacheEnabled",
kcache_set_enabled, NULL, RSRC_CONF,
"KcacheEnabled must have Off or On value"), { NULL } };

And the apache config has the parameter KcacheEnabled the shared memory
segment resets.

Is is a merge configuration problem?

Any hint?

Thanks


2014-12-04 0:01 GMT+01:00 nik600 <ni...@gmail.com>:

> i'm using 2.2.x i've implemented a shared memory segment using apr_shm_*
> functions but i've noticed that if i access to this segment
> in ap_hook_handler i can see it and operate with it, but
> in ap_hook_translate_name the pointer to the shm segment is null.
>
> Any idea or suggestion?
>
> Thanks
>
> 2014-11-25 21:36 GMT+01:00 Eric Covener <co...@gmail.com>:
>
>> On Tue, Nov 25, 2014 at 2:41 PM, nik600 <ni...@gmail.com> wrote:
>> > Hi
>> >
>> > I've implemented a custom module to handle some translate hooks.
>> >
>> > I'd like to add some stats info so i need some shared memory between
>> all the
>> > workers.
>> >
>> > Can you point me to the right resources/documentation/example about it?
>> >
>> > Basically i'd like to increment some counters and then show them if i
>> > receive a specific request.
>>
>> If you only need 2.4, you can see how mod_proxy_balancer uses the
>> services of mod_slotmem. Otherwise, a good reference might be
>> mod_proxy_balancer in 2.2.x.
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@httpd.apache.org
>> For additional commands, e-mail: users-help@httpd.apache.org
>>
>>
>
>
> --
> /*************/
> nik600
> http://www.kumbe.it
>



-- 
/*************/
nik600
http://www.kumbe.it