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From "Bill Stoddard" <b...@wstoddard.com>
Subject Re: Modified apr_hash
Date Tue, 18 Jun 2002 16:30:22 GMT
Thanks. Don't have time to look at this now, but I did spend the time to de-pool apr_hash
for use by mod_mem_cache (see modules/experimental/cache_hash.c).  Some of us are
interested in making mod_mem_cache work in shared mem so your code may do the trick...

Bill

----- Original Message -----
From: "Tahiry Ramanamampanoharana" <nomentsoa@hotmail.com>
To: <dev@apr.apache.org>
Sent: Tuesday, June 18, 2002 9:34 AM
Subject: Modified apr_hash


> Hi guys,
>
> Recently I was writing an Apache module and I needed a hash table library
> using shared memory. I wanted a hash table that could be shared among
> children processes (read/write access) and not only the usual parent to
> children.
>
> So I wrote my own shared mem library that uses the actual apr_shm lib.
> Then, since I didn't want to write my own hash table lib, I modified the
> current APR hash lib to be more generic by removing its dependency to APR
> pool.
>
> Instead of explicitly using pools, I modified it so that you register your
> own memory allocation function and make APR hash functions use it. This
> enables me to have a shared memory hash table with APR hash lib.
>
> So for those who might need it, I am attaching 3 libs with this email:
> - apr_hash.c & apr_hash.h: the modified (reverse compatible with current use
> of the library)
> - my_shmem.c & my_shmem.h: child to child shared memory
> - my_shmem_hash.c & my_shmem_hash.h: hash table using my_shmem instead of
> APR pools.
>
> I might be totally wrong on the usefulness of this, as this is the first I
> am getting at this kind of stuff. Feedbacks will be highly appreciated.
>
> Tahiry
>
>
>
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