z/OS MVS Using the Subsystem Interface
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End-of-Task Call — SSI Function Code 4

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

The End-of-Task call (SSI function code 4) 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 4 are given control from the SSI after resource managers are given control, including resource managers which were dynamically defined. Each subsystem function routine will get control for every task that ends.
Note: This broadcast request is issued after all dynamic resource managers have been given control, but not all system resource managers. For instance, the following resource managers receive control after this End-of-Task call:
  • PC Auth
  • RSM

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