DSXchange

I am using a c++ routine in the parallel jobs and some tables are huge and this routine is applied on every row of the column. It returns char*. After running some jobs , the next jobs are just getting aborted. I am doing force compile 3 to 4 times and then only the job is running. I don't know if this is due the memory occupied by the routine.

In future i want to use all these jobs to be used in a sequence and i don't want to go into all these problem of aborting.

Any suggestions please?

Instead of speculating on the probable cause, posting the exact error message here will help. As far as i know you don't have to handle the memory in a C++ routine explicitly. DataStage does it for you.

Space allocated to variables local to the routine should be freed. Or you might be able to use static variables.

The problem is that you never get the opportunity to free the memory that you have allocated for a returned string.

I have tried the following type of code:

static char * pszReturnString = 0 ;

\\ For a 256 char return type
if ( pszReturnString == 0 ) pszReturnString=new char[256] ;

\\ Code...

return pszReturnString ;

This method has been advised in other posts on this forum.

The static allows the return string to persist, but in theory will always leave the one allocation of pszReturnString. I suspect though this will get freed when the related process finishes.

Alternatively you could just use:

static char szReturnString[256] ;

This auto variable is possibly a bit more friendly to memory garbage collection.