CA IDMS DLI Transparency Software Components › Runtime Interface › Special-Purpose Components › IDMSDLRC module

IDMSDLRC module

The IDMSDLRC module is the replacement for the DL/I region controller. In DL/I, the operating system executes a region controller and the region controller loads and passes control to the DL/I application program. IDMSDLRC performs the following functions:

• Accepts from the JCL the user-specified parameters. In z/OS ,these parameters are specified in the JCL in the PARM clause of the EXEC statement; in z/VSE, they are specified in the JCL in the SYSIPT file. The parameters identify the DL/I application program to be processed and the IPSB that is to be accessed at runtime.
• Issues a call to the front end (IDMSDLFE), requesting the front end to issue a BIND RUN-UNIT. Along with this call, IDMSDLRC provides the front end with the name of the IPSB to be used at run time.
• Receives the addresses of the PCBs used by the DL/I application program.
• Loads and passes control to the DL/I application program. As IDMSDLRC passes control, it provides the DL/I application with the PCB parameter list.
• Issues a termination call to IDMSDLFE after the DL/I application has executed. This call requests the front end to issue a FINISH.