User ID Security Exit Support › System Close Down Parameter List

System Close Down Parameter List

On entry to the security exit, Register 1 points to a list of ten full words, as shown in this diagram.

The contents of the parameter list as follows:

• Word 1

  Is a full word containing the address of function code F'4'.

• Words 2 and 3

  Are set to zeros.

• Word 4

  Is the address of three full words, each containing the information that was passed on the system initialization call.

• Words 5 to 10

  Are set to zeros.

The processing associated with this call depends upon the environment maintained by the exit, but might include closing any data sets used by the exit.

Return Codes from Closedown Call

The exit must return a completion code in Register 15 on return. Successful processing of the close down call must be signified by return code F'0'.