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Transport Provider Interface (TPI), Version 2 Draft 2
Copyright © 1999 The Open Group
Glossary
CLTS
Connectionless mode of service, in which the origin and destination
addresses are included in each message packet so that a direct
connection or established session between origin and destination
is not required.
COTS
Connection-oriented mode of service, requiring a direct connection
or established session between origin and destination.
IP
Internet Protocol
STREAMS
A feature of UNIX that provides a standard way of dynamically
building and passing messages up and down a protocol stack.
Upstream messages are passed from the network driver
through the STREAMS modules to the application. Downstream
messages flow from the application to the network driver.
A STREAMS module would be a transport layer protocol (e.g. TCP)
or a network layer protocol (e.g. IP).
TCP
Transmission Control Protocol
TPI
Transport Provider Interface
Type Model
A mapping of the C language fundamental types onto the data formats
supported by a computer architecture.
Examples of type models are ILP32 (char 8 bits, short 16 bits,
int, long and pointer 32 bits), and LP64 (char 8 bits, short 16 bits,
int 32 bits, long and pointer 64 bits).
UI
UNIX International. This organization developed the original
specification for TPI. It was subsequently acquired by UNIX System
Laboratories.
USL
UNIX System Laboratories. This organization acquired the TPI
specification rights from UI. It was subsequently acquired by Novell
Inc.