TS/MP Pathsend and Server Programming Manual (G06.24+, H06.03+)

Glossary
NonStop TS/MP Pathsend and Server Programming Manual–132500
Glossary-12
message-oriented requester
message-oriented requester. A SCREEN COBOL requester that sends data from working
storage to a device (or to a front-end process that controls a device) and receives data
from the device or process into working storage by way of Message Section templates.
SCREEN COBOL requesters that use the intelligent device support (IDS) facility are
message-oriented. These requesters use SEND MESSAGE statements and their REPLY
clauses in the Procedure Division to interact with the intelligent devices or front-end
processes. See also screen-oriented requester.
Message Section. A section in the Data Division of a SCREEN COBOL source program that
describes the data type, size, and relative position (sequence) of each field in a message
template. This section also defines the editing and conversion that must be performed on
each field. See also message-oriented requester.
mixed data item. A data item that contains both single-byte and double-byte characters; in a
COBOL or SCREEN COBOL program, these data items are declared as PIC X.
modified data tag (MDT). In SCREEN COBOL, a bit that is set or reset to indicate whether
data in an associated field is to be sent to the computer from the terminal.
multithreaded. A programming model that provides more than one thread of control within a
program. Multithreading allows multiple sequential processing tasks to be executed
concurrently within a process: for example, a terminal control process (TCP). See also
thread and single-threaded.
native System/T client. In the NonStop TUXEDO environment, a client program that
executes in the Open System Services (OSS) environment and communicates directly
with System/T. An example of this type of client is the Pathway translation server for the
NonStop TUXEDO system. Also called a NonStop TUXEDO native client.
nested server. A server that acts as a requester by sending requests to other servers. In the
Pathway environment, such requests are made by calls to Pathsend procedures.
nld utility. A utility that collects, links, and modifies code and data blocks from one or more
object files to produce a target TNS/R native object file.
node. A Tandem NonStop system that is part of an Expand network. The name of the node,
also called the system name, is the first of four parts of a file name in the Guardian
environment. See also Expand networking software.
no-early-reply rule. The rule that states that when a server process reads a request message,
it should completely process the request before it replies to it.
nondedicated device. A term formerly used for a terminal or other input/output device on
which a Pathway application could be started from PATHCOM with a RUN PROGRAM
command. The RUN PROGRAM command results in the creation of a temporary
TERM object to control the terminal. (No new term replaces this term; instead, the
manual text now refers to such devices as those associated with temporary TERM
objects.) See also dedicated device and temporary TERM object.