Re: how to let my program sleep a while

[Scott Klement <klemscot@xxxxxxxxxxxx>]

On Tue, 19 Sep 2000, paul cunnane wrote:

> This raises an interesting question.  If I was coding this, I would tend to
> use symbolic constants (I don't trust string literals):
> 
>     D   FOR       C               0
>     D   UNTIL     C               1
> 
>     C   CallP  Sleep(FOR '00:30:00')
> 
> The question is, how do I make these constants available to the client of a
> service program?  I can't EXPORT a CONST from a module.
> 
> The workaround I have used is to code the constant declarations into the
> /COPY member with the prototypes, which makes them available to both the
> service program and the client.  Is there a better way?
> 
> --
> Paul
> 
> 

The /COPY approach is the method that I use for this.  Its also the method
that is used in other languages like C, and also on other platforms (such
as both UNIX and Windows)

I personally don't use EXPORTs at all.  I don't want one module to be able
to change the contents of a variable in another module -- that upsets my
idea of a "black box" approach to writing modules.



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