Putting a message using MQPUT

 

This example demonstrates how to use the MQPUT call to put a message on a queue. This extract is not taken from the sample applications supplied with WebSphere MQ.

⋮
*     CONNECT TO QUEUE MANAGER
*
CONN    DS  0H
⋮
*
*     OPEN A QUEUE
*
OPEN    DS  0H
⋮
*
*     R4,R5,R6,R7 = WORK REGISTER.
*
PUT  DS  0H
     LA   R4,MQMD           SET UP ADDRESSES AND
     LA   R5,MQMD_LENGTH    LENGTH FOR USE BY MVCL
     LA   R6,WMD            INSTRUCTION, AS MQMD IS
     LA   R7,WMD_LENGTH     OVER 256 BYES LONG.
     MVCL R6,R4             INITIALIZE WORKING VERSION
*                           OF MESSAGE DESCRIPTOR
*
     MVC  WPMO_AREA,MQPMO_AREA  INITIALIZE WORKING MQPMO
*
 
     LA   R5,BUFFER_LEN   RETRIEVE THE BUFFER LENGTH
     ST   R5,BUFFLEN      AND SAVE IT FOR MQM USE
*
     MVC  BUFFER,TEST_MSG    SET THE MESSAGE TO BE PUT
*
*    ISSUE MQI PUT REQUEST USING REENTRANT FORM
*    OF CALL MACRO
*
*        HCONN WAS SET BY PREVIOUS MQCONN REQUEST
*        HOBJ WAS SET BY PREVIOUS MQOPEN REQUEST
*
         CALL MQPUT,                          X
               (HCONN,                        X
               HOBJ,                          X
               WMD,                           X
               WPMO,                          X
               BUFFLEN,                       X
               BUFFER,                        X
               COMPCODE,                      X
               REASON),VL,MF=(E,CALLLST)
*
         LA  R5,MQCC_OK
         C   R5,COMPCODE
         BNE BADCALL
*
⋮
BADCALL DS  0H
⋮

*
*      CONSTANTS
*
   CMQMDA DSECT=NO,LIST=YES,PERSISTENCE=MQPER_PERSISTENT
   CMQPMOA DSECT=NO,LIST=YES
   CMQA
TEST_MSG DC CL80'THIS IS A TEST MESSAGE'
*
*      WORKING STORAGE DSECT
*
WORKSTG  DSECT
*
COMPCODE DS F
REASON   DS F
BUFFLEN  DS F
OPTIONS  DS F
HCONN    DS F
HOBJ     DS F
*
BUFFER   DS CL80
BUFFER_LEN EQU *-BUFFER
*
WMD      CMQMDA DSECT=NO,LIST=NO
WPMO     CMQPMOA DSECT=NO,LIST=NO
*
CALLLST  CALL ,(0,0,0,0,0,0,0,0,0,0,0),VL,MF=L
*
⋮
         END

 

Parent topic:

System/390 assembler-language examples

fg19120_