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From Niklas Edmundsson <ni...@acc.umu.se>
Subject Re: a directive to select the pollset implementation?
Date Wed, 25 Nov 2009 15:42:15 GMT
On Tue, 24 Nov 2009, Jeff Trawick wrote:

> As with mutex implementations, APR pollset implementations, or the
> underlying OS support, are occasionally broken for some
> configurations; the access to multiple implementations in APR 1.4.x
> lends itself to allowing the user to specify a non-default pollset
> implementation.
>
> For example, the following could be used to work around the temporary
> epoll sysdef confusion on Linux, or (cough) the port_getn() interface
> challenges on Solaris:

Why am I feeling that figuring out which implementation of what works 
or not should be done automagically, either by configure or at 
startup?

Enabling all these user-choices might backfire with "Oh, you're 
running foo on bar. But of course you know that you should fiddle with 
the thingamajig, because we were too lazy to do a configure test".

I'm not being averse to tunability when it comes to selecting 
implementations that performs better given somewhat equal 
functionality, but when it's works-or-not I'd rather have the 
dysfunctional alternatives weeded out and never exposed to the end 
user...


/Nikke
-- 
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  Niklas Edmundsson, Admin @ {acc,hpc2n}.umu.se      |     nikke@acc.umu.se
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  Raise electric eels-gain a lot of current popularity
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