Re: Calling Teraspace C from RPGLE program

[Paul Godtland <plg@xxxxxxxxxx>]

The ILE C teraspace storage model program is probably expecting 8-byte 
pointers as inputs.

"Teraspace enabled" means the program is allowed to process teraspace 
addresses (that distinction was needed because old programs created 
before teraspace had been invented could not always correctly process 
teraspace addresses).

"Teraspace storage model" means that static, automatic and heap 
allocations come from teraspace, and constants can be referenced through 
teraspace.

16-byte pointers can point to any space (e.g. static storage, automatic 
storage, user space, teraspace) but 8-byte pointers can only point to 
teraspace.

ILE RPG programs (created for v4r4 or later) can process teraspace 
addresses but always use 16-byte pointers. 

C and C++ support teraspace storage model and the choice of 8 or 16-byte 
pointers for pointing to teraspace. The DTAMDL parameter on the C/C++ 
CRT commands controls whether pointers declared without an explicit 
length are to be considered 8 or 16-byte pointers.

Please see ILE Concepts chapter 4 for more detail.
http://publib.boulder.ibm.com/iseries/v5r2/ic2924/index.htm 

Paul Godtland
IBM
Rochester, MN


Zvi Kave wrote:

> I call a Teraspace ILE C program from RPGLE in V5R3.
> As declared in ILE Concepts, RPGLE is Teraspace enabled by default from V4R4.
>
> But I got an error:
>
> Space address is not a teraspace storage address                           
>
> Application error.  MCH0609 unmonitored by TVQSC at statement *N,       
>
>  instruction X'0000'.                                                     
>
> RPG status 00202 caused procedure TVUEP in program SMZV/TVUEP to stop. 
>
> Application error.  RNX9001 unmonitored by TVUEP at statement *N,        
>  instruction X'0000'.                                      
>  
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