Initial and final accounting functions (function codes X'02' and X'03)

The initial accounting function is processed during session initiation. This includes MNPS session recovery (new) and SSCP takeover (existing) of sessions. The final accounting function is processed during session termination. If the initial accounting function is selected for processing, the final accounting function is also selected for processing. These functions pass accounting information only. No results are returned to VTAM®.

Table 1 shows the accounting function parameter list (for both initial and final accounting functions) pointed to by register 1. The parameters are described in Parameter descriptions.

Table 1. Accounting function parameter list
Dec (Hex) Offset	Size (Bytes)	Description
0 (0)	4	Address of environment vectors
4 (4)	4	Address of function code and related session information
8 (8)	4	Address of user data field
12 (C)	4	Address of PLU resource identifier control vector
16 (10)	4	Address of SLU resource identifier control vector
20 (14)	4	Address of session ID
24 (18)	4	Address of time of day field
28 (1C)	4	Address of OLU gateway information vector
32 (20)	4	Address of DLU gateway information vector
36 (24)	4	Address of OLU adjacent SSCP vector
40 (28)	4	Address of DLU adjacent SSCP vector
68 (44)	4	Address of session authorization data vector
72 (48)	4	Address of VTAM exit services parameter list
76 (4C)	4	Address of session management data area
80 (50) ¹	4	Address of TCP/IP information control vector
This offset should be tested for zero before usage. When the offset is nonzero, it represents a pointer to the TCP/IP information control vector. This vector provides the IP characteristics of a TN3270 client associated with the SLU resource.