CPI-C Conformance Class Support

The following CPI-C 2.1 conformance classes are supported as defined by the IBM® document Common Programming Interface Communications CPI-C Reference Version 2.1 (SC26-4399-08).

For details on which classes are not supported by Communications Server clients, see the notepad icon throughout this chapter.
REQTEXT
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The conversation conformance class allows programs to start and end half-duplex conversations.
  • Starter Set calls:
    CMACCP
    Accept_Conversation
    CMALLC
    Allocate
    CMDEAL
    Deallocate
    CMINIT
    Initialize_Conversation
    CMRCV
    Receive
    CMSEND
    Send_Data
  • Advanced Function Calls:
    CMCFM
    Confirm
    CMCFMD
    Confirmed
    CMECS
    Extract_Conversation_State
    CMECT
    Extract_Conversation_Type
    CMEMBS
    Extract_Maximum_Buffer_Size
    CMEMN
    Extract_Mode_Name
    CMESL
    Extract_Sync_Level
    CMFLUS
    Flush
    CMPTR
    Prepare_To_Receive
    CMRTS
    Request_To_Send
    CMSERR
    Send_Error
    CMSCT
    Set_Conversation_Type
    CMSDT
    Set_Deallocate_Type
    CMSF
    Set_Fill
    CMSLD
    Set_Log_Data
    CMSMN
    Set_Mode_Name
    CMSPTR
    Set_Prepare_To_Receive_Type
    CMSRT
    Set_Receive_Type
    CMSRC
    Set_Return_Control
    CMSST
    Set_Send_Type
    CMSSL
    Set_Sync_Level
    Required sync_level values:
    CM_NONE or CM_CONFIRM
    CMSTPN
    Set_TP_Name
    CMTRTS
    Test_Request_To_Send_Received
LU 6.2 conformance class allows a program to use LU 6.2 specific services:
CMEPLN
Extract_Partner_LU_Name
CMSED
Set_Error_Direction
CMSPLN
Set_Partner_LU_Name
The conversation-level non-blocking conformance class allows a program to regain control if a call cannot complete immediately.
CMCANC
Cancel_Conversation
CMSPM
Set_Processing_Mode
CMWAIT
Wait_For_Conversation
The server conformance class allows a program to register multiple transaction program names with CPI-C, to accept multiple incoming conversations, and to manage contexts for different clients.
CMACCI
Accept_Incoming
CMECTX
Extract_Conversation_Context
CMETPN
Extract_TP_Name
CMRLTP
Release_Local_TP_Name
CMINIC
Initialize_For_Incoming
CMSLTP
Specify_Local_TP_Name
The data conversion conformance class routine allows a program to call local routines to change the encoding of a character string from the local encoding to EBCDIC, or vice versa.
CMCNVI
Convert_Incoming
CMCNVO
Convert_Outgoing
The security conformance class allows a program to establish conversations that use access security information in side information or set directly by the program.
CMESUI
Extract_Security_User_ID
CMSCSP
Set_Conversation_Security_Password
CMSCST
Set_Conversation_Security_Type
Required conversation_security_type values:
CM_SECURITY_NONE
CM_SECURITY_PROGRAM
CM_SECURITY_PROGRAM_STRONG
CM_SECURITY_SAME
CMSCSU
Set_Conversation_Security_User_ID

Queue-Level Non-Blocking for regain of control if a call cannot complete.
CMCANC
Cancel_Conversation
CMSQPM
Set_Queue_Processing_Mode
CMWCMP
Wait_For_Completion
Callback Function for regaining control if a call cannot complete.
CMCANC
Cancel_Conversation
CMSQCF
Set_Queue_Callback_Function
Secondary Information allows you to extract secondary error return information.
CMESI
Extract_Secondary_Information
The following Conformance Classes are not supported.
  • OSI TP services
  • Recoverable Transactions (for resource recovery interface)
  • Unchained Transactions (for recoverable transactions)
  • Distributed Security (user security services of distributed security server)
  • Directory (user designated information stored in a distributed directory)
Parent topic: CPI-C Versions