SNAX/HLS Application Programming Manual

HLS-FLOW-CONTROL Verb
SNAX/HLS Verbs
5–30 104707 Tandem Computers Incorporated
Figure 5–4 shows a session example using the HLS–FLOW–CONTROL (SM) verb.
Figure 5–4 . Example of HLS–FLOW–CONTROL (SM)
USER SNAX/HLS SNALU PARTNER
INTERFACE
session established
data transfer in operation
.
HLS-FLOW-CONTROL request
OPERATION=S
OBJECT=M
QEC
(+RSP)
HLS-FLOW-CONTROL reply
RETURN-CODE=OK
.
The partner finishes up message in progress,
then confirms the stop request:
.
RECEIVE-DATA request
.
QC
(+RSP)
RECEIVE-DATA reply
DATA-TYPE-RECEIVED=DT-FLOW-CONTROL
USER-DATA-LENGTH = 2
USER-DATA = "QM"
.
At this point, partner cannot send any normal
messages until you send him the re-enable:
.
HLS-FLOW-CONTROL request
OPERATION=R
OBJECT=M
RELQ
(+RSP)
HLS-FLOW-CONTROL reply