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| How to acess USER DATA field in Process Definition |
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| sebastia |
 Posted: Mon Jun 26, 2006 7:15 am Post subject: How to acess USER DATA field in Process Definition |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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I have a Process Definition where I wrote
User Data := "ABCDEF" ;
My code gets control (writes to a file at "c:\")
But when I try
+++
iCnt = 0 ;
while ( iCnt < argc ) {
sprintf ( MyDbg_Buffer, "Arg (%d) = (%s).", iCnt+1, argv[ iCnt ] ) ;
myTrace ( Trace_log_stream, MyDbg_Buffer ) ;
iCnt ++ ;
} ; /* endwhile */
+++
It starts ok ... writing
"(17:10:0 Argument count (2)."
then first param is displayed ok :
"(17:10:0 Argument (1) = (e:\sebas\TrigCode\mycode.exe)."
but then (at 2nd Argument) I get an error saying
-------------------------------------------------
The instruction at "0x00402d30" referenced memory at "0x01202030".
The memory could not be "read".
-------------------------------------------------
Any clue ?
The pointer "0x01202030" does look suspicious, but I have no idea on what could it point to .... and how to treat it ....
MQTMC2 ???
*************************************
Programming Reference (v 5.3) says :
The meaning of UserData is determined by the trigger-monitor application. The trigger monitor provided by MQSeries simply passes UserData to the started application as part of the parameter list. The parameter list consists of the MQTMC2 structure (containing UserData), followed by one blank, followed by EnvData with trailing blanks removed.
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| Vitor |
| Posted: Mon Jun 26, 2006 7:28 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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argv(1) is, as you intimate, an MQTMC2 structure which I think will cause problems if you just try and sprintf it as a string.
You get to the UserData like you would any other structure element.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| sebastia |
| Posted: Mon Jun 26, 2006 10:21 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Thanks Vitor - you were right.
Dont ask me why, but SPRINTF did not like the MQTMC2 sturcture.
With a simple typecast, all displays fine :
Best luck.
********************************************
ptrMQTMC2 = (PMQTMC2) argv [ 1 ] ; // type cast.
sprintf ( MyDbg_Buffer, "StructID (%.4s)", ptrMQTMC2 -> StrucId ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "Version (%.4s)", ptrMQTMC2 -> Version ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "Triggered queue (%.48s)", ptrMQTMC2 -> QName ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "Process name (%.48s)", ptrMQTMC2 -> ProcessName ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "Trigger Data (%.64s)", ptrMQTMC2 -> TriggerData ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "Application Type (%.4s)", ptrMQTMC2 -> ApplType ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ;
sprintf ( MyDbg_Buffer, "User Data (%.128s)", ptrMQTMC2 -> UserData ) ;
mTraza ( Trace_log_stream, MyDbg_Buffer ) ; |
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| Vitor |
| Posted: Mon Jun 26, 2006 11:41 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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You're quite welcome.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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