z/OS MVS Programming: Sysplex Services Reference
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Description

z/OS MVS Programming: Sysplex Services Reference
SA38-0658-00

The IXLLSTM service enables you to perform operations to read, move, or delete multiple list entries. Some functions of IXLLSTM require that the list structure be allocated in a coupling facility of CFLEVEL=9 or higher. The following services are available:
  • Delete multiple list entries that are designated in a list contained in the storage area specified by BUFFER or BUFLIST.
  • Delete multiple list entries that meet a designated criteria from a list.
  • Delete multiple list entries from a coupling facility list structure.
  • Move multiple list entries that are designated in a list contained in the storage area specified by BUFFER or BUFLIST from the current location to a target location.
  • Read multiple entries from a single list into the storage areas specified by BUFFER or BUFLIST and/or ADJAREA and ANSAREA.
  • Read multiple entries from the list structure into the storage areas specified by BUFFER or BUFLIST and/or ADJAREA and ANSAREA.
The IXLLSTM macro provides list services equivalent to the following IXLLIST request types:
  • IXLLIST REQUEST=DELETE_ENTRYLIST
  • IXLLIST REQUEST=DELETE_MULT
  • IXLLIST REQUEST=READ_LIST
  • IXLLIST REQUEST=READ_MULT

See the descriptions of the corresponding IXLLIST macro for basic information about the services provided.

List structures allocated in a coupling facility of CFLEVEL=9 or higher can be allocated with certain attributes not available in a lower level coupling facility.
  • Users can assign a user-designated entry identifier to a newly created list entry, rather than having the system assign the entry identifier.
  • Secondary keys can be specified, thus allowing the user to reference a keyed list entry by entry key, secondary key, or both.

The IXLLSTM macro can be used to exploit these new attributes.

See z/OS MVS Programming: Sysplex Services Guide for information about using the IXLLSTM macro.

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