HP-UX SNAplus2 R7 APPC Programmer's Guide

Appendix CAPPC State Changes
AppendixC APPC State Changes
The following tables show the conversation states in which each APPC verb may be issued, and the state change
which occurs on completion of the verb. In some cases, the state change depends on the
primary_rc parameter
returned to the verb; where this applies, the applicable primary_rc values are shown in the same column as the verb.
Where no primary_rc values are shown, the state changes are the same for all return codes, except as indicated in
the notes following each table.
The possible conversation states are shown as column headings. For each combination of verb and primary_rc
value, the following abbreviations and symbols are given under each state to indicate the results of issuing the verb
in that state:
X
Verb cannot be issued in this state.
T, S, R, ...
State of the conversation after the verb has completed.
For half-duplex conversations:
T Reset
S Send
SP Send_Pending
R Receive
C Confirm
CS Confirm_Send
CD Confirm_Deallocate
P Pending_Post
For full-duplex conversations:
T Reset
SR Send_Receive
S Send_Only
R Receive_Only
-
There is no conversation state after the verb is issued.
/
It is not applicable to consider the previous state, because the verb starts a new conversation as though from
Reset state; there is no effect on any existing conversation.
(blank)
The return code shown cannot occur in this state.
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