Experimental Physics and
Industrial Control System

> I have a suggestion to avoid all this magic number business 
> (the 1 micro sec threshold).  Why not simply accept a value of 
> zero (0.0) in ca_pend_event/ca_pend_io to mean 'no extra delay'
> 
> Just a suggestion,


Unfortunately a long time ago I decided that a delay of 0.0
would specify that the lib should wait for ever in ca_pend_xxx(). 
Since there are applications that take advantage of this feature 
(that would break if this behaviour was changed) we are unable to 
implement what now appears to be the obvious solution (let a delay 
of zero specify a poll).

However there is nothing stopping us from creating a new entry point
(or a constant indicating a poll).

Jeff

Navigate by Date:

Prev: ?delay record Matthias Clausen DESY -MKV2/KRYK-

Next: User-defined menus for dm Len Lawrence

Index: 1994  1995  <1996>  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 

Navigate by Thread:

Prev: Re: Bug in ca_pend_event() ? Guy Jennings

Next: Table Look-up and Array Processing Thomas Dean

Index: 1994  1995  <1996>  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  2013  2014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024