March 2007
Beginner
526 pages
13h 53m
English
book
Introduction to the New Mainframe: z/VSE Basics
by Wolfgang Bosch, Hans Joachim Ebert, Helmut Hellner, G. M. (Jerry) Johnston, Wilhelm Mild, Ingolf Salm, Joerg Schmidbauer, Martin Walbruehl, Mike Ebbers
Content preview from Introduction to the New Mainframe: z/VSE Basics
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Chapter 14. Messaging and queuing 359
14.2 Synchronous communication
Figure 14-1 shows the basic mechanism of program-to-program communication
using a synchronous communication model.
Figure 14-1 Synchronous application design model
Program A prepares a message and puts it on queue 1. Program B gets the
message from queue 1 and processes it. Both program A and program B use an
application programming interface (API) to put messages on a queue and get
messages from a queue. The MQSeries API is called the Message Queue
Interface (MQI).
When program A puts a message on queue 1, program B might not be running.
The queue stores the message safely until ...
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