[Stackless] Eliminating Busy Waits and Unnecssary Sleeps

seun.osewa at gmail.com seun.osewa at gmail.com
Fri Aug 17 17:09:41 CEST 2007


libevent on python works really well...

On 8/17/07, Edward Faulkner <ef at alum.mit.edu> wrote:
> The semantics of select() on windows are subtly different from unix,
> and I don't have a windows installation to test on, so it wouldn't be
> easy for me.
>
> If you want to pursue this, here's a place to start:
>
> http://msdn2.microsoft.com/en-us/library/ms740141.aspx
>
> Alternatively, look into using the core of Twisted as your event loop.
>  It looks promising, and cross platform.
>
> best regards,
> Ed
>
>
> On 8/10/07, Carlos Eduardo de Paula <carlosedp at gmail.com> wrote:
> > Ed,
> >
> > I looked into your code and I think that if you could help me on
> > porting it to select.select() so it works on windows we solve the
> > socket issue. Then I can implement fileIO using windows overlapped and
> > keep the select IO for unixes.
> >
> > With this we can have a library for socket and file IO on both
> platforms...
> >
> > I know almost nothing about select and poll so it would be a little
> > hard for me to port it....
> >
> > Carlos
> >
> > On 8/8/07, Edward Faulkner <ef at alum.mit.edu> wrote:
> > > On 8/8/07, Carlos Eduardo de Paula <carlosedp at gmail.com> wrote:
> > > > Here we have one problem, it doesnt works on windows. Only socket
> > > > objects can be "selected" on this platform.
> > >
> > > True.  It would be fairly straightforward to reimplement with
> > > select.select instead of select.poll, which I think would work for
> > > sockets (but not files) in windows.  I chose poll because it scales
> > > better for high numbers of connections.
> > >
> > > I tested it on Mac and Linux.  I don't have any Windows boxes so it
> > > didn't occur to me to think about it until now.
> > >
> > > As I mention on the web page, this isn't intended as a library that
> > > you can just drop in and use.  It would need quite a bit of work (and
> > > documentation) to bring it to that point.  I just hope people get some
> > > value out of reading it and applying the ideas to their own
> > > applications.
> > >
> > > regards,
> > > Ed
> > >
> >
> >
> > --
> > -------------------------------------------------------------------
> > Visit Stackless Examples Project
> > http://code.google.com/p/stacklessexamples/
> > Stackless Python - www.stackless.com
> > -------------------------------------------------------------------
> >
>
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-- 
Seun Osewa
http://www.nairaland.com [vast Nigerian forum]

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