Re: Call COBOL from C dynamically...

2005-06-30 Thread Jan MOEYERSONS
This can be accomplished by using the fetch() c run-time library function.
Check the z/OS C/C++ Run-Time Library Referance book, It contains an
elaborate example of calling a COBOL program using fetch().
 Gil.

Just a caveat on something that might not be explicit from the
documentation nor the samples: if the dynamic call is in a loop, you should
avoid to fetch and release the called module within the loop. This is just
common sense, I know; good programming practice requires that you
initialize things at the beginning, use those things within the loop and
then clean up at the end of the program. But in this case, it is even more
important, because, depending on how the called module is structured and
what it does in terms of calling other modules and particularly DLLs, all
sorts of strange side-effects may occur.

Cheers,

Jantje.

--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html


Call COBOL from C dynamically...

2005-06-29 Thread Michael Knigge

All,

I have a C-Prog and a COBOL-Prog and I want to call the COBOL-Prog 
from C - but dynamically!


Like:


int main()
{
   printf(Calling famous COBOL...\n);
   COBPROG();
   printf(Ahhh, back again ;)\n);
}

So, what happens is that the linker includes the Load-Module of COBPROG 
into the Load-Module of my C-Prog.


Somehow possible to avaoid this?


Thank you,
  Michael

--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html


Re: Call COBOL from C dynamically...

2005-06-29 Thread Gil Peleg
Hi Michael,
This can be accomplished by using the fetch() c run-time library function.
Check the z/OS C/C++ Run-Time Library Referance book, It contains an 
elaborate example of calling a COBOL program using fetch().
 Gil.
  On 6/29/05, Michael Knigge [EMAIL PROTECTED] wrote:
 
 I have a C-Prog and a COBOL-Prog and I want to call the COBOL-Prog
 from C - but dynamically!

--
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO
Search the archives at http://bama.ua.edu/archives/ibm-main.html