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Message
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| sebastia |
 Posted: Mon Apr 01, 2013 12:31 pm Post subject: how to use MQCMD_INQUIRE_CHANNEL_STATUS |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Hi, coleagues.
I want to inquire the number of bytes sent /received thru a channel.
Using ...
>>> http://publib.boulder.ibm.com/iseries/v5r1/ic2924/books/csqzat01.pdf
... I know I have to use MQCMD_INQUIRE_CHANNEL_STATUS thru MQAI and that the "provided" sample is "amqsailq.c"
But it looks to me that trying to fill the bags is not an obvious task ...
and more when I read
... returned if requested: ... BuffersReceived, BuffersSent, BytesReceived, BytesSent, ...
Can someone provide a C code sample reading those values ?
Thanks. Sebastian. |
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| exerk |
| Posted: Mon Apr 01, 2013 11:57 pm Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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I think amqsailq.c is the C code sample?
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| sebastia |
| Posted: Tue Apr 02, 2013 12:10 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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No.
AMQSAILQ.C inquires a queue depth, and I want to inquiry the bytes sent thru a channel.
Guess the shape of the program shall be similar, but with the channel
AMQSAILQ.C struct :
| Code: |
// set queue name
mqAddString(adminBag, MQCA_Q_NAME, MQBL_NULL_TERMINATED, "*", &compCode, &reason);
// set queue type
mqAddInteger(adminBag, MQIA_Q_TYPE, MQQT_LOCAL, &compCode, &reason);
// set what we want to are inquire
mqAddInquiry(adminBag, MQIA_CURRENT_Q_DEPTH, &compCode, &reason);
// send request
mqExecute(hConn, MQCMD_INQUIRE_Q, ...
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I can write similar code for a channel, but then I find ...
>>> http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/index.jsp?topic=%2Fcom.ibm.mq.doc%2Fpc12470_.htm
Returned if requested: ... BuffersReceived, BuffersSent, BytesReceived, BytesSent, ...
.. and I have no clue how to code that !
Just for your info : there is something similar in "java" samples :
<mq\tools\pcf\samples\PCF_ChannelStatus.java
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| exerk |
| Posted: Tue Apr 02, 2013 12:28 am Post subject: |
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Jedi Council
Joined: 02 Nov 2006
Posts: 6339
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| sebastia wrote: |
No.
AMQSAILQ.C inquires a queue depth, and I want to inquiry the bytes sent thru a channel. |
Doh! That'll teach me to shoot from the lip! What about amqsaicl.c, which is inquire channel?
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| sebastia |
| Posted: Tue Apr 02, 2013 12:41 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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We all do mistakes, mr EXERC, but still want to help ( )
This sample does return the "mamdatory" fields I'd say ...
Reading here
>>> http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/index.jsp?topic=%2Fcom.ibm.mq.doc%2Fpc12470_.htm
... it says ...
| Quote: |
Always returned:
ChannelDisposition, ChannelInstanceType, ChannelName, ChannelStatus, ChannelType, ConnectionName, RemoteApplTag, RemoteQMgrName, StopRequested, SubState, XmitQName |
... and then the misterious ..
| Quote: |
Returned if requested:
Batches, BatchSize, BatchSizeIndicator, BuffersReceived, BuffersSent, BytesReceived, BytesSent, ChannelMonitoring, |
Specifically, what I dont know how to do is ... "request "BytesSent" ...
But THANKS for the pointer to the sample .... I'll run it in a while ...
Another diference is ... the provided sample uses
MQCMD_INQUIRE_CHANNEL, /* Command to be executed */
whilst I want to use (I supose) MQCMD_INQUIRE_CHANNEL_STATUS ...
Sebastian. |
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| mqjeff |
| Posted: Tue Apr 02, 2013 4:36 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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| sebastia |
| Posted: Tue Apr 02, 2013 4:48 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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PCF instead of MQAI - I agree - I dont like bags either
Java - no problem - I have already read
...
>>> <MQ base>\tools\pcf\samples\PCF_ChannelStatus.java
... it goes
| Quote: |
// create pcf message type
PCFMessage pcfCmd = new PCFMessage(MQConstants.MQCMD_INQUIRE_CHANNEL_STATUS);
// add channel name
pcfCmd.addParameter(MQConstants.MQCACH_CHANNEL_NAME, PCF_CommonMethods.pcfChannel);
// execute the command
PCFMessage[] pcfResponse = pcfCM.agent.send(pcfCmd);
// get channek status
int chStatus = ((Integer) (pcfResponse[0].getParameterValue(MQConstants.MQIACH_CHANNEL_STATUS))).intValue();
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But .. how do I do to get the number of bytes sent or received ?
Sebastian. |
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| mqjeff |
| Posted: Tue Apr 02, 2013 4:53 am Post subject: |
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Grand Master
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Posts: 17447
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| sebastia |
| Posted: Tue Apr 02, 2013 5:13 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Found it, Jeff - MQIACH_BYTES_RCVD and/or MQIACH_BYTES_SENT
But I guess you would agree with me that a working sample would be of great help ... jeje
I know you have already done all this way, but I am just at the beginning ...
Thanks a lot. Sebastian. |
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| sebastia |
| Posted: Tue Apr 02, 2013 8:00 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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I have modified the code in
>>> http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/index.jsp?topic=/com.ibm.mq.doc/pc15410_.htm
Now it goes like this
| Code: |
// Setup request header
pPCFHeader -> Command = MQCMD_INQUIRE_CHANNEL_STATUS ;
// Setup parameter block
pPCFString -> Parameter = MQCACH_CHANNEL_NAME ;
memcpy ( pPCFString -> String, "QL.PCFS.RESP\0", 13 ) ; // chanel name
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If I run it like this, I get 2 messages from Command Server, one 52 bytes, other 36 bytes - still have to decode them.
My question now is : HOW TO SPECIFY that all I want is the number of received bytes, using MQIACH_BYTES_RCVD ?
Has to be something like that :
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/* Setup parameter block */
pPCF_Integer_List -> Type = MQCFT_INTEGER_LIST ; // channel instance attributes is a integer list, MQCFIL
pPCF_Integer_List -> StrucLength = MQCFIL_STRUC_LENGTH_FIXED ;
pPCF_Integer_List -> Parameter = ????
pPCF_Integer_List -> Count = 1 ;
pPCF_Integer_List -> Values[0] = MQIACH_BYTES_SENT ;
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What goes in PARAMETER field ? MQIA_ACTIVE_CHANNELS ???
Thanks for any help.
Sebastian. |
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| bruce2359 |
| Posted: Tue Apr 02, 2013 10:32 am Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Refer to WWMQ Constabts manual.
IA = integer attribute; CA = character attribute
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| sebastia |
| Posted: Tue Apr 02, 2013 10:45 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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I am reading "MQ_v7_PCF_and_AI_csqzac06.pdf" and "cmqcfc.h" ...
Guess "WMQConstants manual" is MQ_v7_Constants_csqzaf10.pdf
I know what IA and CA mean, and now have entered the integer list world.
If a parameter of mine is wrong ... could you simply indicate it ?
Sebastian. |
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| mqjeff |
| Posted: Wed Apr 03, 2013 6:19 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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The source for MS03 is a good sample on how to write and parse PCF requests and responses in C.
You will put MQIACH_CHANNEL_INSTANCE_ATTRS in your Parameter.
| Quote: |
ChannelInstanceAttrs (MQCFIL)
Channel instance attributes (parameter identifier: MQIACH_CHANNEL_INSTANCE_ATTRS). |
You want to build a PCF message that is equivalent to the MQSC command "DIS CHSTATUS(channel_name) BYTSRCVD". |
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| sebastia |
| Posted: Wed Apr 03, 2013 10:29 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Thanks, Jeff - those pages are really dense ...
Yes, I think I can send that command after stopping the Command Server so I can have a look at the contents ...
... or maybe you mean I have to look at the response to that command to understand what comes back in the response ... ?
Sebastia. |
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| mqjeff |
| Posted: Wed Apr 03, 2013 11:24 am Post subject: |
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Grand Master
Joined: 25 Jun 2008
Posts: 17447
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I guess I meant that PCF==MQSC. So you should sort of think of it that way.
That you build a piece that represents "DISPLAY CHSTATUS", then you build a piece that represents "(channel_name)" then you build a piece that represents "BYTSRCVD".
And if you run that command in MQSC, it will produce a response that will help you understand the pieces of the PCF response messages.
The pieces of the response message are built in the same way as the pieces of the request message. So you'll get back a PCF header and then a PCF parameter block that indicates that it's MQIACH_BYTES_SENT or MQIACH_BYTES_RCVD and it will have a value that is the actual number of bytes received (and be an integer).
Again, if you issue the MQSC command and look at the response, you can use amqsbcg to dump out the PCF response and match up values.
but you end up looking up a lot of symbolic constants to find their actual value... |
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