Why won't the Conv option work in a MQGET?

[Glazza]

Another system is sending message to my queue in ASCII, my program states

MOVE MQMI-NONE TO MQMD-CORRELID
MOVE MQMI-NONE TO MQMD-MSGID
MOVE MQGMO-NO-WAIT TO MQGMO-OPTIONS
ADD MQGMO-CONVERT TO MQGMO-OPTIONS
ADD MQGMO-SYNCPOINT TO MQGMO-OPTIONS
MOVE LENGTH OF DSSMQ-MQ-MESSAGE TO DSSMQ-MSG-LENGTH
DSSMQ-DATA-LENGTH

CALL "MQGET"
USING DSSMQ-HCONN
, DSSMQ-Q-HANDLE
, DSSMQ-MESSAGE-DESCRIPTOR
, DSSMQ-GMOPTIONS
, DSSMQ-MSG-LENGTH
, DSSMQ-MQ-MESSAGE
, DSSMQ-DATA-LENGTH
, DSSMQ-COMPLETION-CODE
, DSSMQ-REASON-CODE

But the message is coming through as gobblygook. Translated the message on the queue in a readable form and it looks fine(ie correct format) so what is going wrong?

 

[kevinf2349]

Is the message format set to String?

 

[Glazza]

Yes, I have been informed that the message format on the MQMD is set to string. This is what I don't understand, all the manuals say if the message format is string and the MQGET has the convert option then the data should be converted to the receiving system's format

 

[pmeekin]

Just to be sure, the format needs to be 'MQSTR '.

Cheers,
Paul

 

[Glazza]

Okay I'm getting closer now.....The program does the following MQ wise:- MQConnect, MQOpen for browse, MQGet first browse, MQGet next browse for all on queue (reads 6),MQclose. Then MQopen for get destructive, MQget, MQget reason codes says zero but message is like "_% ?> & ¬ /> "

Obviously the browse is screwing it up somehow but why?

 

[pmeekin]

Are you specifying CONVERT for the browse? If not, it will fill in the CCSID of your Message Descriptor structure with the original CCSID of the message. Then unless you reset this to your local CCSID subsequent GETs will not convert as the message is already in this CCSID.

If the first Browse does specify CONVERT we'll have to think of something else! But it might be useful to print out the CCSID for each GET (before and after) just to be sure it really is the one you want it to convert to.

Cheers,
Paul