httpd-modules-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Danie Qian" <>
Subject Re: load data at server startup - is ap_hook_post_config() the right place?
Date Thu, 22 Mar 2007 15:28:14 GMT

----- Original Message ----- 
From: "Nick Kew" <>
To: <>
Sent: Thursday, March 22, 2007 9:46 AM
Subject: Re: load data at server startup - is ap_hook_post_config() the 
right place?

> On Thu, 22 Mar 2007 09:21:39 -0400
> "Danie Qian" <> wrote:
>>  I am new to module development but I want to develop a module so I
>> can manage the uri of the thousand of sites more efficiently. What I
>> want is to load a mysql table data into the memory of Apache server
>> at its startup stage for fast processing of requests later.
> 1. Have you seen mod_vhost_dbi?

I need to combine some information from an external configuration file with 
those from mysql. Can this module do the non-sql part too?

> 2. The normal way to access mysql is through mod_dbd.

This would be ideal for my situation. However, as I am still new in module 
development it doesnt look intuitive to me right now after skimming through 
chapter 11 of your new book.

> Having said that, it's not clear whether either of those
> is actually relevant to you.
>> Mysql
>> database access information will be set with configuration
>> directives. My question is: 1. Is ap_hook_post_config(apr_pool_t *p,
>> apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)  the right place
>> to load the table?
> Yes, probably.
> 2. If it is, how can the hook functions access the
>> data after it is loaded presumably in apr_pool_t *p?
> Store it on your module's server config.

the server_rec doesnt have a pool field. which field can I use to store the 
data? Does every child process have an instance of this structure instead of 
the parent process?



View raw message