Exit 26 – Link State Change Accounting

Use Exit 26 to create accounting records or to start recovery procedures when a link changes state.

Point of Processing

Process Exit Attribute
Link state accounting Reentrant

Exit 26 is called when any RSCS task causes a link to change state. On return, RSCS returns control to the calling task and the link changes to the specified state.

Entry Conditions

The following table shows the parameters passed in R0 and R1 to the first exit routine associated with this exit point. For more information about other register contents, see Standard Entry Conditions.

Register Contents
R0 Not applicable
R1 Address of parameter list which contains:
Word 1 (+0)
Address of the CVT
Word 2 (+4)
Address of the LINKTABL entry
Word 3 (+8)
A fullword value indicating the previous state of the link
Word 4 (+12)
A fullword value indicating the next state of the link:
0
Inactive
4
Retry-wait
8
Dial-queue
12
Starting
16
Active
20
Intervention required
24
Released
28
Connected
32
RPL-wait

Exit Conditions

On return, Exit 26 sets the standard register contents (see Standard Exit Conditions).

Return Codes

Return Code Results
0 RSCS calls the next exit routine associated with this exit point and continues usual processing.
4 RSCS does not call any other exit routines associated with this exit point and continues usual processing.

Programming Considerations