Function

Keep-Controlled: Verifies that the environment is currently controlled, and if so sets flags indicating that it must remain controlled. It also saves a message supplied by the caller indicating the reason that the environment must remain controlled. It keeps separate flags for z/OS UNIX requests and RACF® requests.
Mark-Uncontrolled: Determines whether the environment must remain controlled by inspecting the keep-controlled indicators and (if necessary) the PADS data set list from the ACEE and the CDEs for modules in the address space, and if not, marks it uncontrolled and also marks any existing TCBs and CDEs as uncontrolled. However, if a keep-controlled request is outstanding, mark-uncontrolled returns an error code and either issues (WTO) any saved messages from a previous keep-controlled request or generates messages to indicate why RACF needed the environment kept controlled. For a successful request, mark-uncontrolled also saves a caller-provided message indicating why the environment became uncontrolled, which it issues on subsequent keep-controlled requests if necessary.
Reset Keep-Controlled: Resets the keep-controlled indicators and removes any saved messages relating to previous keep-controlled requests. It is intended only for use by z/OS UNIX when z/OS UNIX determines that the environment no longer needs to be kept controlled.
Query: Returns a reason code indicating the state of the environment.