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From Jeff Trawick <traw...@gmail.com>
Subject Re: Building the apr runtime library appropriately for the worker MPM
Date Wed, 03 Apr 2013 19:29:26 GMT
On Wed, Apr 3, 2013 at 3:03 PM, Greg Lazar <greglazar@hotmail.com> wrote:

> **
> The apr_file_lock routine, in the version of apr runtime library that I've
> currently built uses fnctl which does not appear to be thread safe. I need
> to use the worker MPM, so is it recommended that I build the apr runtime
> library to use flock instead. NFS file systems aren't a concern in this
> case. I didn't know how extensively the apr_file_lock was used through the
> rest of apache and if I'd be introducing any regressions by switching the
> apr runtime library to use flock.
>

I'm not aware of any apr_file_lock() use within httpd, so you wouldn't
regress anything (unless you're using third-party modules that use
apr_file_lock).  But I guess you've introduced a third-party module that
uses apr_file_lock() or you wouldn't be asking about this?

I guess the apr_file_lock() use of fcntl() needs to get a thread mutex too.

What OS is this?

-- 
Born in Roswell... married an alien...
http://emptyhammock.com/

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