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From Graham Leggett <>
Subject Re: svn commit: r997545 - in /httpd/httpd/trunk: CHANGES include/ap_mmn.h modules/cache/mod_cache.c modules/cache/mod_cache.h modules/cache/mod_disk_cache.c modules/cache/mod_disk_cache.h
Date Thu, 16 Sep 2010 10:10:23 GMT
On 16 Sep 2010, at 12:02 PM, Plüm, Rüdiger, VF-Group wrote:

> Hm. What happens in a threaded MPM, where we a doing a caching  
> operation
> and another thread causes a fork (e.g. because of mod_cgi (I know
> should not be used with threaded MPM's), or some 3rd party module that
> does a fork). Wouldn't that cause our cache file to be deleted in the
> middle of the caching?
> My comment is only about the 4th parameter to  
> apr_pool_cleanup_register
> set to file_cache_temp_cleanup, I am fine with setting the 3rd to
> file_cache_temp_cleanup and fully follow that purpose.
> Shouldn't we set the 4th paramter just to apr_pool_cleanup_null?

In theory the thread next door has no access to our r->pool, but  
you're right that third party modules may do all sorts of things, and  
the fourth parameter is unnecessary.

Fixed in r997676.


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