Loader domain exits XLDLOAD and XLDELETE

The loader domain is used to obtain access to storage-resident copies of nucleus and application programs, maps, and tables. The loader domain uses the operating system interfaces to load programs into the CICS® dynamic storage areas (DSAs), and to scan the link pack area (LPA). There are two global user exits in the loader domain. XLDLOAD is invoked when a new instance of a program is loaded into storage, before the program is made available for use. XLDELETE is invoked after an instance of a program is released by CICS and before the program is freed from storage.

For LPA-resident programs, the exits are still invoked when a program is acquired or released, even though the program is not physically loaded or freed.

These are both information-only exits. Any changes made to the exit parameters by the exit program are ignored by CICS, as is any return code which it sets.