Re: Comparing the aio and epoll event frameworks.

[Dan Kegel <dank@kegel.com>]

William Lee Irwin III wrote:
> Davide Libenzi wrote:
> 
>>>>Adding a single shot feature to epoll takes about 5 lines of code,
>>>>comments included :) You know how many reuqests I had ? Zero, nada.
> 
> 
> On Mon, 19 May 2003, Dan Kegel wrote:
> 
>>>I thought edge triggered epoll *was* single-shot.
> 
> 
> On Mon, May 19, 2003 at 05:47:15PM -0700, Davide Libenzi wrote:
> 
>>For single shot I mean that once you receive one event, you will not
>>receive more events for that fd if you do not rearm it. Suppose you
>>receive 1000 bytes of data and you get an event (EPOLLIN). If after 10
>>seconds you receive another 1000 bytes, you will receive another event.
>>This is not single shot.
> 
> 
> I think this would be useful for network daemons that would like to
> fairly schedule responses (i.e. not re-arm until a client on a given fd
> deserves a turn again). IRC daemons would appear to be a perfect
> candidate for such.  ...

No need.  The plain old edge triggered behavior can handle this
nicely.
- Dan


-- 
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045