TS/MP 2.5 Pathsend and Server Programming Manual

monitor until the application dialog is completed. Multiple messages can be exchanged
between the client and server participating in the communication. See also conversational
server.
conversational
model
A model for requestor-server communication that enables an ongoing dialog between a client
(or requestor) and a server. Multiple messages can be exchanged between the client and server
process before control is returned to the transaction monitor. See also request/response model
and conversational server.
conversational
server
A server that offers conversational services and can participate in a conversation, or dialog, with
a client; that is, a context-sensitive server. See also conversational mode (definition 2),
request/response server, and context-sensitive server.
cool start The operation that restarts a PATHMON environment, using the information in an existing
PATHMON configuration file (PATHCTL file). The PATHMON environment must have been
previously started with a cold start operation. See also cold start.
Crossref
cross-reference
generator
A HP software tool that produces a cross-referenced listing of selected identifiers—such as data
variables, statement labels, or subprograms—in an application program.
current working
directory
The OSS directory from which relative pathnames are resolved. See also OSS pathname and
relative pathname.
Data Definition
Language (DDL)
The set of data definition statements within the Structured Query Language (SQL).1.
2. An HP product for defining data objects in Enscribe files and translating object definitions
into source code.
data integrity The condition of a database when its data values are accurate, valid, and consistent according
to rules established for changing the database. See also database consistency.
data-model neutral Refers to a data item whose size is the same in both the ILP32 and the LP64 data models. Also
refers to a function whose arguments and return value are data-model neutral. See also “data-model
sensitive” (page 206).
data-model
sensitive:
Refers to a data item whose size is different in the ILP32 and LP64 data models. See also
“data-model neutral” (page 206).
database
consistency
The state of a database in which items satisfy established criteria. For example, an account
balance must equal credits to the balance minus debits to the balance. When the database
satisfies these criteria, the database is considered to be consistent. In general, a database is
consistent when it is accurate and all changes generated by transactions are complete. Database
consistency is defined by the application, which establishes the values and relationships of
database fields and records.
database
management
system (DBMS)
A product, such as NonStop SQL/MP or Enscribe, that serves as the interface between a user or
program (for example, a Pathway server) and the database. Among its many functions, the DBMS
controls access to and organization of data within the database.
DBCS See double-byte character set (DBCS).
DDL See Data Definition Language (DDL).
deadlock A situation in which two processes cannot proceed because each is waiting for a reply from
the other.
1.
2. A situation in which two transactions cannot proceed because each is waiting for the other
to release a lock.
dedicated device A term formerly used for a terminal or other input/output device controlled by a configured TERM
object, so that a Pathway application always ran on that device without having to be started
from PATHCOM with a RUN PROGRAM command. (No new term replaces this term; instead,
the manual text now refers to such devices as those associated with configured TERM objects.)
See also nondedicated device and configured TERM object.
default value The value that the system uses for a particular attribute or parameter when a value has not been
supplied by the user.
DEFINE A named set of attributes and associated values. In a DEFINE (as with an ASSIGN command),
users can specify information to be communicated to processes they start.
206 Glossary