Re: [boost] [log] Comments

Subject: Re: [boost] [log] Comments
From: Vladimir Prus (ghost_at_[hidden])
Date: 2010-03-16 11:17:19

On Tuesday 16 March 2010 18:00:10 Andrey Semashev wrote:

> On 03/16/2010 08:50 AM, Vladimir Prus wrote:
> > On Tuesday 16 March 2010 01:34:52 Andrey Semashev wrote:
> >
> >> In my view, the filter should be replaced on update. You can have the
> >> map of components or whatever, and the filter pointing to them. On
> >> update you create a new map and a new filter, and set it to the
> >> core/sinks. No additional locking required, no special syntax,
> >> everything's safe and clean. Same goes for formatters.
> >
> > What about performance? If I have 100 components, copying map on
> > each update seems not too good. Locking is probably better.
> 
> It's you use case, and you probably know better. But I seriously doubt 
> that locking the filter on each log record (which, I assume, is rather 
> often) can be better than filling a 100-element container on occasional 
> config updates.

In either case, this is more like implementation choice than interface
one, so we don't need to come with any decision right now.

Thanks,
Volodya