SNAX/HLS Application Programming Manual

OPEN-SESSION Verb
SNAX/HLS Verbs
104707 Tandem Computers Incorporated 5–47
OPEN-SESSION Verb This verb is used to establish a session between two session partners (that is, LUs).
The detailed operation of the verb depends on both the PROFILE attributes (for
example, OPEN–MODE) and the BIND attributes (for example, TS PROFILE).
The SNAX/HLS system programmer defines the appropriate values in the RDT for
PROFILE, BIND, or INIT attributes. The application programmer specifies only the
PROFILE name and required indicators (for example, PIPELINE–LU–IND) to use the
verb.
The most important value returned is SESSION–ID. This value uniquely identifies the
session to SNAX/HLS and locates the tables that store session–related information.
The application uses this returned SESSION–ID value in all subsequent verbs for the
given session.
A session can have more than one opener. This typically happens when multiple
applications are using pipelined LUs. When multiple OPEN–SESSIONs are pending
for one session, all open requests complete when the session becomes active.
The SNA events that arise from the OPEN–SESSION verb are identical to those
described for the HLS–OPEN verb operating in wait mode.