httpd-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Bill Stoddard" <>
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...


----- Original Message -----
From: "Tahiry Ramanamampanoharana" <>
To: <>
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
> _________________________________________________________________
> MSN Photos is the easiest way to share and print your photos:

View raw message