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User Exit 8 (Operator Interface)

This user exit receives control from the Adabas nucleus whenever the nucleus starts or stops, or whenever the nucleus or an Adabas utility receives a message from or sends a message to the operator. User exit 8 can be used to provide specific instructions to the operator

User exit 8 is invoked:

graphics/opinter_parms.png

Operator Interface User Exit (8) Parameters

This document covers the following topics:


Input Parameters

Parameter Usage
0 (R1)
Address of the byte containing the call type ("STOW") indicator:
S called at nucleus start
T called at normal nucleus termination
O called with an operator message to the nucleus/utility
W called with a nucleus/utility message to the operator
4 (R1) Address of the fullword containing the database ID.
8 (R1)
Address of variable-length message-related information for "O" and "W" type calls. The information at this address has the following format: Call format:
O The one-byte message length, followed by the alphanumeric message. The length excludes the length byte itself. If the message is to be changed, location 8(R1) must point to the new message on return. This message is structured as described above. If the message is to be suppressed, location 8(R1) must point to a two-byte field containing X'0140'.
W
8(R1) points to the message, which has the
             following structure:
DC  H'message-length+4'
DC  H'0'               
DC  C'message-text'    

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