SHUTDOWN exit (003)

The SHUTDOWN exit is activated while a session is terminating.

The corresponding exit routine can, for example, write its own accounting data, record statistical values, etc.

The following information is passed to the exit routine:

R1 = A(parameter area $SHUIND)
R12 = A(TPR program manager)
R13 = A(save area of calling component)
R14 = A(indirect return)
R15 = A(exit routine)

Notes

• The contents of registers 12, 13 and 14 must not be destroyed by the exit routine.

• The SHUTDOWN exit routine runs under the control of the operator task. Consequently all program errors lead to abnormal termination of the system.

• Before the SHUTDOWN exit routine is activated a termination request exit routine is activated, if available, for every task that has to be terminated.