Pathway/iTS TCP and Terminal Programming Guide

Introduction to TCP and Terminal Application

Programming

Compaq NonStop™ Pathway/iTS TCP and Terminal Programming Guide—426751-001

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Client/Server Capabilities

The RSC/MP product brings client/server capabilities to the Pathway environment by

allowing you to move requester functions to a workstation. This product allows client

programs residing on a workstation to access Pathway server classes in any of three

different ways:

•

Through a Pathsend requester provided by RSC/MP, which works with the

LINKMON process

•

Through a special intelligent device support (IDS) requester supplied with RSC/MP,

which works with the terminal control process (TCP)

•

Through an IDS requester that you develop yourself in the SCREEN COBOL

language; this requester works with the TCP

RSC/MP also allows requesters to access Guardian processes directly. To facilitate

access to servers and Guardian processes, RSC/MP consists of multiple components

within both the workstation and NonStop™ Himalaya system environments.

For further information about RSC/MP, refer to the Compaq NonStop™ Remote Server

Call (RSC/MP) Programming Manual.

Other Transaction Processing Environments

The NonStop™ TS/MP product serves as the foundation for open transaction processing

on NonStop™ Himalaya systems. In addition to the Pathway environment, NonStop™

TS/MP supports the NonStop™ TUXEDO transaction processing system. The

NonStop™ TUXEDO system allows you to develop TUXEDO transaction processing

applications to run on NonStop™ Himalaya systems.

You can develop applications that use a combination of modules from the NonStop™

TUXEDO environment and the Pathway environment. In particular, you can write a

SCREEN COBOL requester that indirectly invokes the services of a NonStop™

TUXEDO server by using the Pathway to TUXEDO translation server provided with the

NonStop™ TUXEDO product. For more information about this translation server, refer

to the NonStop™ TUXEDO System Pathway Translation Servers Manual.