Entry information retrieved will be returned in the user-provided work area. Resume information is returned in the Selection Criteria Fields. If on return CSIRESUM is set to Y, then CSIRESNM will be set to the next entry to be processed, and CSICATNM will be the catalog in which that entry will be found. When the program has processed returned entry information, it should re-invoke CSI to resume at the next entry. Make sure to check the CSIREQLN field before issuing the resume call to be sure the return area size needed has not increased; if it has increased, you must pass in a work area of the new required size.

The caller must set CSIUSRLN prior to CSI invocation. CSIUSRLN is the size in bytes of the work area including itself. CSIUSRLN must be a fixed fullword value between 1024 and 1,048,575, inclusive. Although CSIUSRLN can be 1,048,575, large sizes may impact Catalog Management resources. A size of 64,000 is generally recommended.

All other data is returned by CSI in the user-provided work area.