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From Jim Jagielski <...@jaguNET.com>
Subject Re: Proposal: a "cron" interface for httpd
Date Sat, 29 Mar 2008 18:11:13 GMT

On Mar 27, 2008, at 9:18 AM, Nick Kew wrote:
> On Wed, 26 Mar 2008 18:22:51 +0200
> Graham Leggett <minfrin@sharp.fm> wrote:
>
>> Nick Kew wrote:
>>
>>> ap_hook_monitor?
>>
>> A quick look found the hook, but no comments or other docs on how it
>> works. The only code in the tree using the hook is mod_example_hooks,
>> but it doesn't reveal any information either.
>>
>> Is this hook documented anywhere?
>
> It's intended precisely for periodic cron-like jobs.  It's not
> synchronised to the clock, but polled every 10 secs (IIRC -
> and not guaranteed).  For most jobs you'd want a timer or
> counter to run the job at some multiple of 10 secs intervals.
>
> Considerations:
>  * It runs in the parent process (root, single-threaded).
>  * Take care with the pool - it doesn't get cleaned up.

Also that since it just gets passed a pool, and nothing else,
its usage can be somewhat limiting as well :)

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