SPI Common Extensions Manual

Glossary
SPI Common Extensions Manual—427508-001
Glossary-3
current-token position
current-token position. The location in the SPI buffer of the token whose token code,
token value, or attribute has just been retrieved. Compare with next-token position and
initial position.
data list. A grouping of tokens used to delimit response records in an SPI response. A data
list begins with ZSPI-TKN-DATALIST and ends with ZSPI-TKN-ENDLIST. See
response record.
definition files. A set of files containing data declarations for items related to SPI messages
and their processing. The core definitions required to use SPI are provided in a DDL
file and in several language-specific definition files, one for each programming
language that supports SPI. The DDL compiler generates the language-specific files
from the DDL file. Subsystems that support SPI provide additional definition files
containing subsystem-specific definitions. See also SPI standard definitions and
subsystem definitions.
Distributed Systems Management (DSM). An architecture and a set of software tools that
facilitate management of systems and networks. These tools include the ViewPoint
console application, the Subsystem Control Facility (SCF), the Subsystem
Programmatic Interface (SPI), the Event Management System (EMS), the Distributed
Name Service (DNS), and token-oriented programmatic interfaces to the manager
processes of various Compaq subsystems.
downward compatibility. The ability of a requester to operate properly with a server of a
lower revision level. In this case, the requester is downward-compatible with the server.
Compare with upward compatibility.
DSM. See Distributed Systems Management (DSM).
empty list or variable. A list that has no members, or a variable that has no content.
empty response. A response record containing only the return token with a value that
means “empty response.” See return token
.
EMS. See Event Management System (EMS)
.
end-list token. ZSPI-TKN-ENDLIST, which marks the end of a list in an SPI message. This
same token is used to mark the end of all four types of SPI lists. Compare with list
token.
enumerated type. A 16-bit signed data type with a value drawn from a specific list of values
with designated meanings. The enumerated type is one of the standard token data
types defined by SPI. The list of acceptable values and their meanings varies
depending on the token number and is defined by the subsystem.
error. A condition that causes a command or other operation to fail. Compare with warning.