Apparatus and method for list management in a coupled data proce

Details Apparatus and method for list management in a coupled data proce Apparatus and method for list management in a coupled data proce

1992-03-30

1995-04-25

Kriess, Kevin A.

Boots, shoes, and leggings

364DIG1, 364280, 3642813, 364284, 36424294, 3642843, 395700, G06F 944, G06F 1516

Patent

active

054106958

ABSTRACT:
A Structured External Storage (SES) Facility is coupled to one or more Central Electronic Complex (CEC) Processors, each linked to each other in a System Processing Complex (Sysplex). Applications within a CEC communicate with the SES via messages over a communication means. The SES comprises one or more List Structures, each structure comprising one or more Lists, each List comprising a list control and none or more List Entries. List Entries may be keyed or unkeyed, have a List Entry Identifiers (LEID), created within the SES, and unique within a particular List Structure. List Entries may also have a unique (within a List Structure) Name, created and managed by the application. A plurality of List commands are provided for creating, locating, moving and deleting List Entries--with location reference possible by LEID, Name, Key, Location within List, or a combination of Key and Location within Key. Name and LEID are preserved between moves, while Key may or may not be changed, and will be used to determine relative location.

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