APPC/MVS Host Command Environments
The CPICOMM environment enables you to invoke the SAA CPI Communications
calls and the LU62 and APPCMVS environments enable you to invoke APPC/MVS
calls. You can write transaction programs in the REXX language, using the LU62,
CPICOMM, or APPCMVS host command environments, to issue APPC calls to a
partner transaction program. The CPICOMM host command environment allows
transaction programs written in the REXX language to be ported across SAA
environments. The LU62 host command environment allows you to use specific
features of MVS in conversations with transaction programs on other systems.
APPCMVS allows you to access APPC/MVS callable services related to server
facilities and for the testing of transaction programs. Each of these host command
environments enable REXX programs to communicate with other programs on the
same MVS system, different MVS systems, or different operating systems in an
SNA network.
The following APPC/MVS calls are supported under the APPCMVS host command
environment:
v ATBCUC1 (Cleanup_TP(Unauthorized))
v ATBGTE2 (Get_Event)
v ATBPOR2 (Post_on_Receipt)
v ATBQAQ2 (Query_Allocate_Query)
v ATBRAL2 (Receive_Allocate)
v ATBRFA2 (Register_for_Allocate)
v ATBRJC2 (Reject_Conversation)
v ATBSAQ2 (Set_Allocate_Queue_Attributes)
v ATBSCA2 (Set_Conversation_Accounting_Information)
v ATBSTE2 (Set_Event_Notification)
v ATBTEA1 (Accept_Test)
v ATBTER1 (Register_Test)
v ATBTEU1 (Unregister_Test)
v ATBURA2 (Unregister_for_Allocates)
v ATBVERS (MVS_Version_Check)
The following SAA CPI Communications calls are supported under the CPICOMM
host command environment:
v CMACCP (Accept_Conversation)
v CMALLC (Allocate)
v CMCFM (Confirm)
v CMCFMD (Confirmed)
v CMDEAL (Deallocate)
v CMECS (Extract_Conversation_State)
v CMECT (Extract_Conversation_Type)
v CMEMN (Extract_Mode_Name)
v CMEPLN (Extract_Partner_LU_Name)
v CMESL (Extract_Sync_Level)
v CMFLUS (Flush)
v CMINIT (Initialize_Conversation)
v CMPTR (Prepare_To_Receive)
v CMRCV (Receive)
Issuing Other Types of Commands from an Exec
104
z/OS V1R1.0 TSO/E REXX User’s Guide
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