Previous section.
Transport Provider Interface (TPI), Version 2 Draft 2
Copyright © 1999 The Open Group
TPI Message Formats
SYNOPSIS
include <sys/tihdr.h>
DESCRIPTION
The Transport Provider Interface (TPI) Message Formats
define the message formats (structures) used by the
service primitives.
These are classified as connection-mode, connectionless-mode, or both.
They are further classified as being either user-originated
or provider-originated.
Two
types
are used to build the TPI primitives. The normative definitions of
t_scalar_t
and
t_uscalar_t
are to be found in the Networking Services Specification (see the referenced
XNS
specification ),
but are repeated here for informational purposes.
t_scalar_t
and
t_uscalar_t
are, respectively, a signed
and an unsigned opaque integral type of equal length of
at least 32 bits1.
Footnotes
- 1.
- To forestall portability problems, it
is recommended that applications should not use values
larger than 232 - 1.