z/OS MVS Using the Subsystem Interface
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Early Notification of End-of-Task Call — SSI Function Code 50

z/OS MVS Using the Subsystem Interface
SA38-0679-00

The Early Notification of End-of-Task call (SSI function code 50) provides the ability to do task-related resource clean up. Whenever a task ends, all active subsystems that are enabled to receive SSI function code 50 are given control from the SSI before resource managers are given control. Each subsystem function routine will get control for every task that ends.
Note: This broadcast request is issued before many resource managers have been given control, but not all resource managers. For instance, the following resource managers receive control before this Early Notification of End-of-Task call:
  • Availability Manager (AVM)
  • SVC Dump

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