shared memory across child process

Has anyone been successful in sharing memory among child processes?

I was playing with Apache 2.0.40 and I found apr_shm.h and apr_rmm.h
that looked like they create and manipulate shared memory. It worked
partially for me but I hit a wall with a bug I don't know where it's
comming from.

If you know of any way to share memory, whether from within apache's
api or not, please let me know. It doesn't seem like a small problem
to solve from scratch.

Thanks,

In article <796b5647.0403021410.2a44f600@posting.google.com >,
eabouzou@yahoo.com (Ahab A.) writes:
> Has anyone been successful in sharing memory among child processes?

Why not?

> I was playing with Apache 2.0.40

ferchrissake, upgrade!

> If you know of any way to share memory, whether from within apache's
> api or not, please let me know. It doesn't seem like a small problem
> to solve from scratch.

It isn't. It's complicated by the need to support the different MPMs.
You need to use the APR - anything else will be hopelessly complicated.

You might want to see if you can find Aaron Bannert's presentation on
the APR (titled something like "advanced topics") from ApacheCon 2003.

--
Nick Kew

Thanks for the reply. I did use the apr. I used the following headers:
apr_shmem.h, apr_rmm.h, and apr_global_mutex.h
It worked partially ok for me but I ran into a bug where when memory
gets low, something gets messed up in my pointers which were allocated
from shared memory!
I was thinking maybe I should try my luck with mmap and see how it
goes from there. Any suggestions would be greatly appreciated!

nick@hugin.webthing.com (Nick Kew) wrote in message news:<qbqgh1-06i.ln1@webthing.com>...
> In article <796b5647.0403021410.2a44f600@posting.google.com >,
> eabouzou@yahoo.com (Ahab A.) writes:
> > Has anyone been successful in sharing memory among child processes?
>
> Why not?
>
> > I was playing with Apache 2.0.40
>
> ferchrissake, upgrade!
>
> > If you know of any way to share memory, whether from within apache's
> > api or not, please let me know. It doesn't seem like a small problem
> > to solve from scratch.
>
> It isn't. It's complicated by the need to support the different MPMs.
> You need to use the APR - anything else will be hopelessly complicated.
>
> You might want to see if you can find Aaron Bannert's presentation on
> the APR (titled something like "advanced topics") from ApacheCon 2003.