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Subject: Using hash tables globally ...
From: Kiffin Gish <kiffin.gish@tomtom.com>
To: dev@httpd.apache.org
Cc: Kiffin Gish <kiffin.gish@tomtom.com>
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Date: Mon, 09 Jun 2008 19:59:05 +0200
Message-Id: <1213034345.6276.17.camel@localhost>
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I'm trying to use a hash table to save a global cache of calculated
areas based on the request url.

The idea is that if the give area is already in the cache then I can use
its pre-calculated value, otherwise first time I do the complicated
calculation and save the results in the hash table.

In my hook_post_config() routine I have:

   SERVER_CONFIG *s_cfg = ap_get_module_config(s->module_config,
&wmscache_module);
   ...
   s_cfg->hash_tilecache = apr_hash_make(pconf);
   ...
   return OK;

In my hook_translate_name() routine I save the calculations in the hash,
but the next time hook_translate_name() is called, the hash no longer
contains this/any value, it's disappeared.

What do I need to do to make this hash table persistent globally and be
updated properly within each url request?

Thanks alot in advance,
Kiffin

-- 
Kiffin Gish | Desktop & Services Development | TomTom | kiffin.gish@tomtom.com | +31 (0) 6 15529214 mobile | +31 (0) 20 757 5000 office


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