Application program activation and deactivation (function codes X'03' and X'05')

The following parameters described in Table 1 follow the CLU search exit parameter list header when a TPF application program becomes available or when the application program is no longer available. A TPF application program becomes available when its MINLINK count is matched or exceeded. A TPF application program is no longer available when its MINLINK count is no longer matched or exceeded.

Table 1. Function codes X'03' and X'05' parameters
Dec (Hex) offset	Size (Bytes)	Description
8 (8)	4	Reserved
12 (C)	8	The name of the application program that has become available or is no longer available
20 (14)	4	Application program user extension control block pointer This pointer allows the exit to allocate a control block associated with the application program named above. For function code X'03' processing, the logon manager saves the pointer to this control block and passes it to the exit whenever the exit is called with this same application program name. When called for function code X'05' processing, if the pointer is not NULL, the exit is responsible for freeing this control block and its pointer.
24 (18)	2	The size, in bytes, of the application program user extension control block
26 (1A)	2	Reserved
28 (1C)	4	The number of links currently supporting the application program
32 (20)	12	Reserved