SNAX/HLS Application Programming Manual

RECEIVE DATA Verb
SNAX/HLS Verbs
5–84 104707 Tandem Computers Incorporated
If RETURN–CODE contains any value other than those listed above, this field is
undefined and should not be analyzed.
USER–ERROR–CODE
contains the second two bytes of SNA sense data if the SYSTEM-ERROR-CODE
contains the first two bytes of SNA sense data.
RETRY–ACTION–CODE
is a summary indicator that indicates whether an unsuccessful request should be
retried. The value returned here can be installation–defined.
RECOVERY–TAGS
are returned to allow the requester to correlate requests, responses, and/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. These
values are meaningful only when the DATA–TYPE–RECEIVED field contains a
negative value (FM header received) or one of the following values:
1 DT–PARTNER–DATA
4 DT–LU–STATUS
7 DT–MESSAGE–CANCELLED
10 DT–FLOW–CONTROL (only for QM and RT messages)
RECEIVE–DATA–QUEUED–IND.
A value of Y indicates that more data is available for the user. RECEIVE–DATA
verbs complete immediately (that is, with no internal queuing) until the indicator
is N.
ENTER–SEND–STATE–IND.
A value of Y indicates that the message bears the change–direction indicator. In
HDX–FF protocols, you are expected to send data after receiving this indicator.
Your partner has stopped sending and is in receive mode. If you session is using
transactions (brackets), this signal is meaningful only when
TRANSACTION–IN–PROGRESS is Y. If your session is using the LMO, the ENTER–
SEND–STATE–IND is only meaningful when MESSAGE–COMPLETE–IND is Y.