SNAX/HLS Application Programming Manual

RECEIVEDATA Verb
Application Prototyping and Simulation (APS) System
6–46 104707 Tandem Computers Incorporated
RECEIVE-DATA Request Screen Description
SESSION-ID
Is session ID of the current APS session. This field is assigned automatically by
APS and is not modifiable by the APS user.
RECEIVE-DATA Reply Screen Description
Return Code
Displays the value of the verb reply RETURN-CODE in decimal followed by text.
System Error
Is a computational qualifier for RETURN-CODE. This screen line displays the
SYSTEM-ERROR-CODE value of the verb reply—first in decimal, next in
hexadecimal, and followed by text.
If RETURN CODE is RC-SYNTAX-ERROR, the SYSTEM-ERROR-CODE
indicates the ordinal position of the parameter in error discounting the verb
code and session ID. If the verb causes an SNA negative response from the
session partner, the first two bytes of the negative response are returned here.
User Error
Is a computational qualifier for SYSTEM-ERROR-CODE. At present, this field is
used only for the last two bytes of negative SNA responses and LUSTAT
messages. The screen line displays the field first in decimal and next in
hexadecimal.
Retry Action
Indicates whether an unsuccessful request should be retried. The screen line
displays the decimal value for this indicator followed by text.
Recovery Tags
Are returned to allow the requester to correlate requests, responses, or replies.
BOM is the SNA sequence number of the first element of the data message and
EOM is the SNA sequence number of the last element of the data message.
RDQ
(RECEIVE-DATA-QUEUED-IND)
A value of Y indicates that more data is available for the user. RECEIVE-DATA
verbs complete immediately (with no internal queuing) until the indicator is N.
ESS
(ENTER-SEND-STATE-IND)
A value of Y indicates that the message bore the change-direction indicator. In
HDX-FF protocols, this indicates that you are expected to send data.