Pathway/iTS System Management Manual (G06.24+)

Introduction to Pathway/iTS System Management
HP NonStop Pathway/iTS System Management Manual—426748-002
1-18
The LINKMON Process
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A file or any other device has to be accessed before sending data to the
SCREEN COBOL program, for example, when data requires encryption or
decryption.
Using the GDSX product, you can implement message switching, develop and modify
data communications protocols, and perform data-stream conversions, all of which
facilitate access to Pathway server classes. For more information about the GDSX
product, see the Extended General Device Support (GDSX) Manual.
The LINKMON Process
A LINKMON process is a multitasking process that handles the interface to Pathway
servers from requesters other than SCREEN COBOL requesters. Such requesters
include Pathsend requesters; workstation clients that use RSC/MP; and NonStop
TUXEDO clients.
For information about managing LINKMON and Pathsend processes, see the TS/MP
System Management Manual. For information about how to write Pathsend programs,
see the TS/MP Pathsend and Server Programming Manual.
Requester-Server Communication
Figure 1-6 on page 1-19 shows a PATHMON environment that includes
SCREEN COBOL requesters and web clients. The TCPs, TCP1 and TCP2, interpret
multiple SCREEN COBOL requester threads, one per application terminal, and provide
link-management functions. TCP2 also executes multiple web gateway threads, one
per workstation running a browser and web client, and coordinates with the link-
management functions of the router process.