[Nut-upsdev] Environment Variables

[Stuart D. Gathman]

On Fri, 27 May 2011, Keven L. Ates wrote:

> A problem I see with the above code is that the env checking function
> appears to be called every time a variable is needed (see statepath calls). 
> This practice should probable be changed so that the env variable is loaded
> once at program startup and stored in a global var/struct and then used as
> needed.  This is so that changes to a env var within the programs runtime
> context does not modify behavior or cause error, such as changing where it
> looks for the PID file AFTER the PID file was created.

Under unix, at least, environment vars are copied to a process when it is
created, and can only be changed by the process itself.  So getenv()
in effect *is* the global var/struct you want.  Is Windows different
in that regard?

--
 	      Stuart D. Gathman <stuart at bmsi.com>
     Business Management Systems Inc.  Phone: 703 591-0911 Fax: 703 591-6154
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