HP-UX SNAplus2 R7 APPC Programmer's Guide

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Contents

Legal Notices.............................................................................................................................................13

Warranty............................................................................................................................................13

U.S. Government License................................................................................................................ 13

Copyright Notices.............................................................................................................................13

Trademark Notices............................................................................................................................13

Publishing History.....................................................................................................................................14

New and Changed Information in This Edition................................................................................14

Before You Begin......................................................................................................................................15

Prerequisite Knowledge....................................................................................................................15

Intended Audience............................................................................................................................15

About This Book...............................................................................................................................15

Organization of This Book.......................................................................................................16

Typographic Conventions.........................................................................................................16

Graphic Conventions................................................................................................................17

SNAplus2 Publications.....................................................................................................................17

Publications for Users..............................................................................................................18

Publications for Administrators................................................................................................18

Publications for Programmers..................................................................................................19

Related Publications.........................................................................................................................19

Chapter 1 Concepts...............................................................................................................................20

1.1 What Is APPC?.......................................................................................................................20

1.1.1 Transaction Programs..................................................................................................20

1.1.2 Communication between TPs.. ................................................................................... 21

1.1.3 Logical Unit 6.2............................................................................................................21

1.1.4 Sessions......................................................................................................................21

1.1.5 Conversations..............................................................................................................21

1.1.6 APPC Verbs.................................................................................................................21

1.1.7 The Conversation Process.. ........................................................................................22

1.1.8 Conversation Types.....................................................................................................22

1.1.9 Multiple Conversations.. .............................................................................................. 22

1.1.10 Half-Duplex and Full-Duplex Conversations..............................................................22

1.2 A Simple Mapped Conversation (half-duplex).. ......................................................................23

1.2.1 Starting a Conversation...............................................................................................24

1.2.2 Sending Data...............................................................................................................24

1.2.3 Receiving Data............................................................................................................24

1.2.4 Ending a Conversation................................................................................................25