RE: NEWBIE Question: LUA wait() function?

[gary ng <garyng2000@...>]

can you use VBA as the control language(where I
believe it has these sleep things) and lua for
business logic instead ? otherwise, busy loop is the
only way as more likely than not, you are working with
an embedded lua VM which means all other suggestions
that involve C modules won't work.

--- Rolf <rb@san.rr.com> wrote:

> I am indeed writing several "macros" that are
> manipulating data in Ecco Pro
> (Ecco Pro is Personal Information Manager). However,
> I have a need for a
> wait/pause/sleep function in order to periodically
> check if some data has
> changed. 
> 
> I also intended to use it to periodically execute
> actions at predetermined
> times.
> 
> -----Original Message-----
> From: lua-bounces@bazar2.conectiva.com.br
> [mailto:lua-bounces@bazar2.conectiva.com.br] On
> Behalf Of KHMan
> Sent: Tuesday, March 11, 2008 7:08 PM
> To: Lua list
> Subject: Re: NEWBIE Question: LUA wait() function?
> 
> Peter Odding wrote:
> > (Hit [Send] too soon)
> > 
> > Note that the repeat until loop is called a busy
> loop* which Wikipedia
> > calls a `naïve attempt at programming' :). The
> reason I posted it is
> > that it's the only way to wait in plain Lua (I
> think...)
> > 
> >  - Peter
> > 
> > * http://en.wikipedia.org/wiki/Busy_loop
> 
> Assuming Rolf is exclusively using Lua on EccoExt...
> 
> >From the Ecco wiki site mentioned below, Ecco, a
> Win32 app, sounds
> like a kind of spreadsheet. The Lua examples there
>
(http://eccoextdoc.wikispaces.com/Sample+LUA+Programs)
> looks much
> like macros one would write using Excel VB. If
> EccoExt's Lua can't
> be extended using DLLs, then we're stuck with a busy
> loop method.
> 
> Fundamentally, I think there is no practical need
> for a wait
> function, since the intended programming model is
> much like Excel
> VM macros. I took a look at EccoPy, there are no
> event-driven
> functions or things like that, but one can create or
> open
> worksheets, etc., in addition to tabulated data
> functions.
> 
> At first glance, it looks like we can't do any
> interactive or
> timelined stuff, so it is more for advanced data
> processing and
> macro tasks -- you execute a Lua script to get some
> non-trivial
> processing or tasks done. So with EccoExt, perhaps
> one should
> start by focusing on writing scripts that do simple
> processing
> tasks instead, as I did with Excel VB. Please
> correct me if I am
> wrong.
> 
> > Peter Odding wrote:
> >> I think Lua doesn't have os.sleep() (the name
> usually given) because
> >> it's not in the C standard. There's a way around
> it in plain Lua,
> >> assuming os.time() uses seconds as its unit
> (which is the case on at
> >> least Windows and Linux):
> >>
> >>> [snip]
> >>>
> >>> I searched the LUA archive, but only found
> discussions about
> >>> coroutine.yield(). However, I do not understand
> how to use this or if
> >>> they can even be called in the application that
> I am using (EccoExt
> >>> for Ecco Pro. See the Tutorials here
> http://eccowiki.com/)
> >>>
> >>> TIA!!
> 
> -- 
> Cheers,
> Kein-Hong Man (esq.)
> Kuala Lumpur, Malaysia
> 
> 



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