HP-UX SNAplus2 CPI-C Programmer's Guide (June 2003)

Concepts
Multiple Conversations
Chapter 152
Multiple Conversations
A program can be involved in several conversations simultaneously.
Each conversation requires an LU-to-LU session. Multiple conversations
are not supported if the application uses a dependent LU (for more
information, see “Specifying the Local LU” in Chapter 2).
A common use of multiple conversations is to have an invoked program
invoke another program, which, in turn, invokes another program, and
so on. In the diagram below, program A invokes program B; program B
invokes program C.
Figure 1-2 Multiple Conversations
For more information about how CPI-C conversation security operates
with multiple conversations, see “Overview of Conversation Security”.
Program A
Program C
LU1
LU3
Conversation
Program B
LU2
Session
Conversation
Session