Boost logo

Boost Users :

Subject: Re: [Boost-users] [ASIO] directory monitor ASIO extension
From: Szymon Gatner (szymon.gatner_at_[hidden])
Date: 2014-08-06 02:58:19

2014-08-06 2:54 GMT+02:00 Niall Douglas <s_sourceforge_at_[hidden]>:

> On 6 Aug 2014 at 0:17, Bjorn Reese wrote:
> > On 08/05/2014 03:36 PM, Szymon Gatner wrote:
> >
> > > I am going through code of directory monitor ASIO extension by Boris
> >
> > You may also be interested in AFIO (F for file.) It has an experimental
> > directory monitor living in some branch whose name I do not know.
> >
> >
> Ah yes. The directory monitor isn't ready for production use. By
> production use I mean:
> * Can cope with 1m entry directories easily as the rest of AFIO can.
> * Can handle 50,000 entries changing every second in a 1m entry
> directory without losing change deltas and without racing on
> individual stats on a 2Ghz single core, with approximate linear
> scaling with additional cores i.e. four cores can monitor four 1m
> entry directories seeing 5% change.

I should be OK :) What are the advantages over Boris' version tho?

> Paul Kirth presented on this at C++ Now 2014. It is a surprisingly
> tough engineering problem, and requires a design approaching ideal
> for it to work at all.
I actually just watched that presentation yesterday. Pretty great piece of

Szymon Gatner

Boost-users list run by williamkempf at, kalb at, bjorn.karlsson at, gregod at, wekempf at