These are the commands that can be used to acquire and use CICS-to-IMS sessions.
- ALLOCATE – used
to acquire a session to the remote IMS system.
- BUILD ATTACH – used
to build an LUTYPE6.1 attach header that is used to initiate a transaction
on a remote IMS system.
- EXTRACT ATTACH – used
by a CICS transaction to recover information from the LUTYPE6.1 attach header
that caused it to be initiated. This command is required only for SEND and
RECEIVE asynchronous processing.
- SEND, RECEIVE, and CONVERSE – used by the
CICS transaction to send or receive data on the session. The first SEND or
CONVERSE command issued by a front-end CICS transaction must name the attach
header that has been defined by the BUILD ATTACH command.
- WAIT TERMINAL SESSION(name) – used
to ensure that CICS has transmitted any accumulated data or data flow control
indicators before it continues with further processing.
- ISSUE SIGNAL SESSION(name) – used by a transaction that is in receive state to request an
invitation to send (change-direction) from IMS.
- FREE – used by a CICS transaction
to relinquish its use of the session.
Last updated: Thursday, 27 June 2019