z/OS MVS Programming: Sysplex Services Guide
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READ_LCONTROLS: Reading List Controls

z/OS MVS Programming: Sysplex Services Guide
SA23-1400-00

Use the READ_LCONTROLS request to obtain the list control information for a specific list. The list service returns the following list control information in the answer area specified using the ANSLEN and ANSAREA parameters.
  • The list limit (maximum allowable number of list entries or data elements on the list)
  • The current number of list entries or data elements on the list
  • The approximate number of times the list has changed from empty to nonempty
  • The user-specified list description
  • The user-defined list authority value
  • The number of entries in the array of list monitoring information associated with the list. The list monitoring information itself is returned in the buffer specified by BUFFER or BUFLIST
  • The value of the list cursor (entry ID to which it points or zero)
  • The list key value (when CFLEVEL=1 or higher)
  • The maximum list key value (when CFLEVEL=1 or higher)
  • The list cursor direction (when CFLEVEL=1 or higher).

See also IXLLSTC for information about reading list controls.

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