User Exits › COBOL User Exit Facility › Obtaining Additional Information Using I/O Requests

Obtaining Additional Information Using I/O Requests

CA JCLCheck maintains its information associated with the current job stream and current execution in memory. The data are kept in the CA JCLCheck control blocks that are chained together internally.

CA JCLCheck provides an interface I/O facility for the COBOL user exit program to gain access to additional data not specifically supplied at the current exit point by issuing calls to the CA JCLCheck exit interface module, JCLCXIO. Using a specific request type code, the specific information is returned to the COBOL program. This facility allows the COBOL user exit program to navigate its way through the CA JCLCheck control blocks as necessary to perform its analysis.

Note: The data area supplied to the COBOL exit program by the CA JCLCheck interface module is only a copy of the appropriate information CA JCLCheck maintains. This design prevents your exit code from inadvertently altering the actual CA JCLCheck control blocks.