TNSVU User's Guide

Glossary
TNSVU User’s Guide—528143-003
Glossary-22
server application
Servers are designed to receive request messages from clients or requesters; perform
the desired operations, such as database inquiries or updates, security verifications,
numerical calculations, or data routing to other computer systems; and return reply
messages to the clients or requesters. A server process is a running instance of a
server program.
server application. An application that provides a service to a client application. An
application that provides local execution of remote procedure calls is an example of a
server application.
(system) in a ServerNet cluster must have one SNETMON process pair running.
shared memory. An interprocess communication mechanism that allows two or more
processes to share a given region of memory.
Shared Millicode Library. An intrinsic library containing privileged or TNS-derived millicode
routines used by many native-compiled programs and by emulated TNS programs.
This library includes efficient string-move operations, TNS floating-point emulation, and
various privileged-only operations. These routines are mode independent. They
comply with native calling conventions but can be directly invoked from any mode
without changing execution modes.
shared run-time library (SRL). A collection of procedures whose code and data can be
loaded and executed only at a specific assigned virtual memory address (the same
address in all processes). SRLs use direct addressing and do not have run-time
resolution of links to and from the main program and other independent libraries.
Contrast with dynamic-link library (DLL). See also TNS shared run-time library (TNS
SRL) and TNS/R native shared run-time library (TNS/R native SRL).
shell generator. A software tool that, given a procedure interface definition coded in pTAL
for a native-mode library procedure, produces a custom shell routine to provide access
from TNS object code to that native-mode procedure. See also TNS to native-mode
access shell.
shell map. An address table created by the HP NonStop™ operating system that contains
the entry point addresses of all available TNS to native-mode access shells. See also
TNS to native-mode access shell.
site update tape (SUT). One or more tapes that contain each target system’s site-specific
subvolume and various products. Each product contains a softdoc and a complete set
of files. A SUT is delivered with every new HP NonStop™ system and can be ordered
whenever a new release version update (RVU) of the system software is available. A
full SUT contains the current RVU of the HP NonStop operating system and all product
software that has been ordered with it. A partial SUT contains a subset of products for
the current RVU.
SRL. See shared run-time library (SRL).