PL/I example: Closing a queue

This extract is not taken from the sample applications supplied with IBM® MQ.

For the names and locations of the sample applications, see Using the sample procedural programs for z/OS®.

%INCLUDE SYSLIB(CMQP);
%INCLUDE SYSLIB(CMQEPP);
:
/*********************************************************/
/* WORKING STORAGE DECLARATIONS                          */
/*********************************************************/
DCL COMPCODE                  BINARY FIXED (31);
DCL REASON                    BINARY FIXED (31);
DCL HCONN                     BINARY FIXED (31);
DCL HOBJ                      BINARY FIXED (31);
DCL OPTIONS                   BINARY FIXED (31);
⋮
/*********************************************************/
/* SET CLOSE OPTIONS                                     */
/*********************************************************/
OPTIONS=MQCO_NONE;
 
/*********************************************************/
/* CLOSE QUEUE                                           */
/*********************************************************/
   CALL MQCLOSE (HCONN,      /* CONNECTION HANDLE        */
                 HOBJ,       /* OBJECT HANDLE            */
                 OPTIONS,    /* CLOSE OPTIONS            */
                 COMPCODE,   /* COMPLETION CODE          */
                 REASON);    /* REASON CODE              */
 
/*********************************************************/
/* TEST THE COMPLETION CODE OF THE CLOSE CALL.           */
/* IF THE CALL HAS FAILED ISSUE AN ERROR MESSAGE         */
/* SHOWING THE COMPLETION CODE AND THE REASON CODE.      */
/*********************************************************/
     IF COMPCODE ¬= MQCC_OK
        THEN DO;
          ⋮
          CALL ERROR_ROUTINE;
        END;