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From Sander Temme <>
Subject Re: Apache 2: Integrating code into the main even loop of the parent process
Date Fri, 05 Aug 2005 04:12:17 GMT

On Aug 4, 2005, at 8:29 PM, robersonja wrote:

> Hi,
>     We are trying to add the ability for Apache 2 to do ZeroConf  
> browsing using the Apple Bonjour client code to talk to their POSIX  
> mdns code.

Excellent! I hope to change mod_zeroconf one day to use Apple's  
DnsDiscovery API, but have very little time to spend on this.

> The Apple code requires a callback to be called when data arrives  
> from the multicast group. Ideally I would like this to be in the  
> parent process with access to the data available to all the  
> children processes modules.

My approach so far has been to spawn a child process in the  
post_config hook handler to handle the callbacks. This is what I'm  
doing in the current version of mod_zeroconf, which uses Howl. You  
can find that at .

For the DnsDiscovery API, my first approach is to go without a  
callback handler: with the autorename feature in the mDNSResponder,  
Apache should not ever have to handle any callbacks. However, there  
may be a time when such a callback needs to be implemented.

As I said, I have very little time to spend on this.


> Can anyone point me to where the appropriate place to put this in  
> the Apache 2 code would be?
> Thanks
> Jarrod Roberson

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