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