Re: Program-to-program communication (Was DTAARA in COBOL)

Hello Chris,

Yes.  Linkage section.  Used to communicate synchronously by defining 
parameters and 
issuing a CALL ... USING ...

Also used to communicate asynchronously by linking to the QSNDDTAQ and QRCVDTAQ 
APIs and 
then issuing a CALL ... USING ... to send the data to a data queue.

Regards,
Simon Coulter.

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IME-Version: 1.0
Date: Thu, 13 Jan 2000 12:54:29 +0000
From: Chris.Chambers@v2music.com
To: COBOL400-L@midrange.com
Reply-To: COBOL400-L@midrange.com
Subject: Program-to-program communication (Was DTAARA in COBOL)

imon,

Are we talking linkage section here? If not could you expand a little.

Thanks for the help so far,

Chris





"Simon Coulter" <shc@flybynight.com.au> on 12/01/2000 20:43:39

Please respond to COBOL400-L@midrange.com

To:   COBOL400-L@midrange.com
cc:    (bcc: Chris Chambers/London/V2 Music)
Subject:  Program-to-program communication (Was DTAARA in COBOL)

F


Hello Chris,

Simple.  The problem with data areas is the obscurity -- especially the LDA.

Synchronous communication is best performed by passing parameters.

Asynchronous communication is best performed using queues.

There are other techniques available but those are the most straight-forward.

Regards,
Simon Coulter.

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«» FlyByNight Software         AS/400 Technical Specialists       «»
«» Eclipse the competition - run your business on an IBM AS/400.  «»
«»                                                                «»
«» Phone: +61 3 9419 0175      Mobile: +61 0411 091 400           «»
«» Fax:   +61 3 9419 0175      mailto: shc@flybynight.com.au      «»
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