Re: [Bulk] Quickest, easiest way to check for existence of a program, from ILE C?

James:

You said, "... quickest, easiest and least resource-intensive ..." -- 
pick any two.. :-)

You could use the RSLVSP function, defined in the "ILE C/C++ MI Library 
Reference"

http://oublib.boulder.ibm.com/iseries/v5r1/ic2924/books/c0924180.pdf

Or use one of the _RSLVSPx MI instructions as a "built-in" in ILE C ... 
but you have to handle any exceptions the MI instruction might issue.

Or, just call the API  QUSROBJD  -- it will return an error indication 
of the object is not found, etc.

If you do a google search for "_RSLVSP from ILE C" you should be able to 
find some examples, and that "ILE C/C++ MI Library Reference" even 
includes sample code.

HTH,

Mark S. Waterbury

 > On 3/3/2015 12:40 PM, James H. H. Lampert wrote:
> Would anybody happen to know the quickest, easiest way to check (from 
> an ILE C program) whether a program exists, before attempting to call it?
>
> i.e., if C program FOO has:
>
> > #pragma linkage(BAR,OS,nowiden)
> > ...
> > int BAR(void *);
> > ...
>
> and wants to call:
>
> > iretcd = BAR(baz);
>
> but ONLY if BAR actually exists on the system, what's the quickest, 
> easiest, least resource-intensive way to determin whether BAR exists, 
> before calling it?
>
> -- 
> JHHL

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