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Posted to dev@httpd.apache.org by Mladen Turk <mt...@apache.org> on 2006/08/19 12:55:02 UTC
How to detect the mpm used via apxs?
Hi,
Anyone knows how to detect the mpm used so that
module can be build with/without threading code
depending if the mpm is prefork or any other threaded
one like worker by using apxs?
The only way I can imagine is to parse the stdout from
httpd, but IMHO something like
apxs -q MPM should do the trick like it does for CFLAGS
or INCLUDES.
Regards,
Mladen.
Re: How to detect the mpm used via apxs?
Posted by Enrico Weigelt <we...@metux.de>.
* Mladen Turk <mt...@apache.org> wrote:
Hi,
> Anyone knows how to detect the mpm used so that
> module can be build with/without threading code
> depending if the mpm is prefork or any other threaded
> one like worker by using apxs?
are you shure you really want to know the mpm name instead of
just a flag which tells you if threading is available ?
> The only way I can imagine is to parse the stdout from
> httpd, but IMHO something like
> apxs -q MPM should do the trick like it does for CFLAGS
> or INCLUDES.
Actually, I don't like the whole apxs script at all. Why not just
install an extra .pc file for each installed module, also for
the MPM's ?
cu
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Re: How to detect the mpm used via apxs?
Posted by Enrico Weigelt <we...@metux.de>.
* Guy Hulbert <gw...@eol.ca> wrote:
<snip>
> or if you've already compiled it ...
>
> $ /usr/sbin/apache2 -V | grep MPM
> -D APACHE_MPM_DIR="server/mpm/worker"
Bad, very bad. Breaks crosscompiling.
Ah, yeah, apache cannot be crosscompile'd w/o massive manual
intervention at all ... ;-o
(but I'm working on that ...)
cu
--
---------------------------------------------------------------------
Enrico Weigelt == metux IT service
phone: +49 36207 519931 www: http://www.metux.de/
fax: +49 36207 519932 email: contact@metux.de
cellphone: +49 174 7066481
---------------------------------------------------------------------
-- DSL ab 0 Euro. -- statische IP -- UUCP -- Hosting -- Webshops --
---------------------------------------------------------------------
Re: How to detect the mpm used via apxs?
Posted by Mladen Turk <mt...@apache.org>.
William A. Rowe, Jr. wrote:
> Mladen Turk wrote:
>> Randy Kobes wrote:
>>>>>> Anyone knows how to detect the mpm used so that
>>>>>> module can be build with/without threading code
>>>>>> depending if the mpm is prefork or any other threaded
>>>>>> one like worker by using apxs?
>>> /path/to/apxs -q MPM_NAME
>> That was exactly what I needed.
>
> Well, that wouldn't exactly tell you that 'classic' mpm works exactly
> (rather than very close to) prefork. Anyone can write an mpm.
>
> ap_mpm_query() was made to answer such questions, and creates you a module
> if you test at run-time that will load in either an unthreaded or threaded,
> forked or not forked server.
>
I know that, but I need a way for mod_jk to set the default
-DJK_PREFORK in case the mpm compiled is prefork just like for
httpd 1.3 without the need for --enable-prefork configure flag.
If however ap_mpm_query() returns the non prefork and the module
is compiled with -DJK_PREFORK it will fail to load with error
message.
Regards,
Mladen.
Re: How to detect the mpm used via apxs?
Posted by "William A. Rowe, Jr." <wr...@rowe-clan.net>.
Mladen Turk wrote:
> Randy Kobes wrote:
>>>>
>>>>> Anyone knows how to detect the mpm used so that
>>>>> module can be build with/without threading code
>>>>> depending if the mpm is prefork or any other threaded
>>>>> one like worker by using apxs?
>>
>> /path/to/apxs -q MPM_NAME
>
> That was exactly what I needed.
Well, that wouldn't exactly tell you that 'classic' mpm works exactly
(rather than very close to) prefork. Anyone can write an mpm.
ap_mpm_query() was made to answer such questions, and creates you a module
if you test at run-time that will load in either an unthreaded or threaded,
forked or not forked server.
Re: How to detect the mpm used via apxs?
Posted by Mladen Turk <mt...@apache.org>.
Randy Kobes wrote:
>>>
>>>> Anyone knows how to detect the mpm used so that
>>>> module can be build with/without threading code
>>>> depending if the mpm is prefork or any other threaded
>>>> one like worker by using apxs?
>
> /path/to/apxs -q MPM_NAME
>
That was exactly what I needed.
Thanks,
Mladen.
Re: How to detect the mpm used via apxs?
Posted by Randy Kobes <ra...@theoryx5.uwinnipeg.ca>.
On Sat, 19 Aug 2006, Guy Hulbert wrote:
> On Sat, 2006-19-08 at 10:18 -0300, Davi Arnaut wrote:
>> Em 19/08/2006, �s 07:55, Mladen Turk escreveu:
>>
>>> Anyone knows how to detect the mpm used so that
>>> module can be build with/without threading code
>>> depending if the mpm is prefork or any other threaded
>>> one like worker by using apxs?
/path/to/apxs -q MPM_NAME
--
best regards,
Randy Kobes
Re: How to detect the mpm used via apxs?
Posted by Guy Hulbert <gw...@eol.ca>.
On Sat, 2006-19-08 at 10:18 -0300, Davi Arnaut wrote:
> Em 19/08/2006, às 07:55, Mladen Turk escreveu:
>
> > Hi,
> >
> > Anyone knows how to detect the mpm used so that
> > module can be build with/without threading code
> > depending if the mpm is prefork or any other threaded
> > one like worker by using apxs?
>
> Why use apxs ?
or if you've already compiled it ...
$ /usr/sbin/apache2 -V | grep MPM
-D APACHE_MPM_DIR="server/mpm/worker"
>
> mpm.h:
>
> #define WORKER_MPM
> #define MPM_NAME "Worker"
I thought he must already know this ...
>
> >
> > The only way I can imagine is to parse the stdout from
> > httpd, but IMHO something like
> > apxs -q MPM should do the trick like it does for CFLAGS
> > or INCLUDES.
> >
> > Regards,
> > Mladen.
>
--
--gh
Re: How to detect the mpm used via apxs?
Posted by Davi Arnaut <da...@haxent.com.br>.
Em 19/08/2006, às 07:55, Mladen Turk escreveu:
> Hi,
>
> Anyone knows how to detect the mpm used so that
> module can be build with/without threading code
> depending if the mpm is prefork or any other threaded
> one like worker by using apxs?
Why use apxs ?
mpm.h:
#define WORKER_MPM
#define MPM_NAME "Worker"
>
> The only way I can imagine is to parse the stdout from
> httpd, but IMHO something like
> apxs -q MPM should do the trick like it does for CFLAGS
> or INCLUDES.
>
> Regards,
> Mladen.