SAP ABAP SYNTAX FOR COMMUNICATION PART TWO

Variant 2

COMMUNICATION ALLOCATE ID id.

Addition

As for variant 1.

Effect

Sets up a program-to-program connection. The call must immediately follow COMMUNICATION INIT .

Example

TYPES: CONVERSATION_ID(8) TYPE C,

       DESTINATION(8)     TYPE C,

       RETURN_CODE        LIKE SY-SUBRC.

DATA:  CONVID  TYPE CONVERSATION_ID,

       DEST    TYPE DESTINATION VALUE 'C00',

       CPIC_RC TYPE RETURN_CODE.

INCLUDE RSCPICDF.

COMMUNICATION INIT DESTINATION DEST

                   ID          CONVID

                   RETURNCODE  CPIC_RC.

IF CPIC_RC NE CM_OK.

   WRITE: /'COMMUNICATION INIT, RC = ', CPIC_RC.

   EXIT.

ENDIF.

COMMUNICATION ALLOCATE ID CONVID RETURNCODE CPIC_RC.

IF CPIC_RC NE CM_OK.

   WRITE: /'COMMUNICATION ALLOCATE, RC = ', CPIC_RC.

   EXIT.

ENDIF.

Variant 3

COMMUNICATION ACCEPT ID id.

Addition

As for variant 1.

Effect

Accepts a connection requested by the partner program. id is a field of type C which is 8 characters long and contains the ID of the accepted connection after a successful call.

Example

FORM CPIC_EXAMPLE.

  TYPES: CONVERSATION_ID(8) TYPE C,

         RETURN_CODE        LIKE SY-SUBRC.

  DATA:  CONVID  TYPE CONVERSATION_ID,

         CPIC_RC TYPE RETURN_CODE.

  INCLUDE RSCPICDF.

  COMMUNICATION ACCEPT ID CONVID

                       RETURNCODE  CPIC_RC.

  IF CPIC_RC NE CM_OK.

     EXIT.

  ENDIF.

ENDFORM.



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