RSC/MP 7.2 Programming Manual

RSC/MP Sessions
HP NonStop Remote Server Call (RSC/MP) Programming Manual522360-004
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Interprocess and IDS Session Comparison
Interprocess and IDS Session Comparison
This table summarizes the features of the Interprocess and IDS session types.
Unsolicited Messages
The Unsolicited Message System (UMS) allows programs running on the NonStop
host to send unsolicited messages to the RSC/MP application. These messages are
routed to the RSC/MP session using aliases that the application establishes through
the option settings. UMS operations are associated with the session as a whole and
not with any particular RscWrite or RscWriteRead call. UMS is independent of the TMF
transaction feature.
Validating a Session
The API maintains a list of active sessions, including their session handles. On every
API call using a session handle, the value for that session handle is validated against
the list of active session handles. If an invalid session handle is received, the API
returns an API error 15 (“The specified session handle is not valid”).
Feature Interprocess IDS
Server Types Pathway Servers
Named Processes
Pathway Servers
Dependencies IDS requester
Message Size 31000 for Pathway
Servers
56000 for Named
Processes
8192
Concurrent nowaited
I/Os per session
65535 1
Supported I/O Types RscWriteRead
RscWrite
RscWriteRead
Client accessible TMF Yes
RscBeginTransaction
RscEndTransaction
RscAbortTransaction
No