Tribblix: manual page: t

T_RCVREL(3NSL) Networking Services Library Functions T_RCVREL(3NSL)

NAME

t_rcvrel - acknowledge receipt of an orderly release indication

SYNOPSIS

#include <xti.h>

int t_rcvrel(int fd);

DESCRIPTION

This routine is part of the XTI interfaces which evolved from the TLI
interfaces. XTI represents the future evolution of these interfaces.
However, TLI interfaces are supported for compatibility. When using a
TLI routine that has the same name as an XTI routine, the tiuser.h
header file must be used. Refer to the TLI COMPATIBILITY section for
a description of differences between the two interfaces.

This function is used to receive an orderly release indication for
the incoming direction of data transfer. The argument fd identifies
the local transport endpoint where the connection exists. After
receipt of this indication, the user may not attempt to receive more
data by means of t_rcv(3NSL) or t_rcvv(). Such an attempt will fail
with t_error set to TOUTSTATE. However, the user may continue to send
data over the connection if t_sndrel(3NSL) has not been called by the
user. This function is an optional service of the transport provider,
and is only supported if the transport provider returned service type
T_COTS_ORD on t_open(3NSL) or t_getinfo(3NSL). Any user data that may
be associated with the orderly release indication is discarded when
t_rcvrel() is called.

RETURN VALUES

Upon successful completion, a value of 0 is returned. Otherwise, a
value of -1 is returned and t_errno is set to indicate an error.

VALID STATES

T_DATAXFER, T_OUTREL.

ERRORS

On failure, t_errno is set to one of the following:

TBADF
The specified file descriptor does not refer to a
transport endpoint.

TLOOK
An asynchronous event has occurred on this transport
endpoint and requires immediate attention.

TNOREL
No orderly release indication currently exists on the
specified transport endpoint.

TNOTSUPPORT
This function is not supported by the underlying
transport provider.

TOUTSTATE
The communications endpoint referenced by fd is not in
one of the states in which a call to this function is
valid.

TPROTO
This error indicates that a communication problem has
been detected between XTI and the transport provider
for which there is no other suitable XTI error
(t_errno).

TSYSERR
A system error has occurred during execution of this
function.

TLI COMPATIBILITY

The XTI and TLI interface definitions have common names but use
different header files. This, and other semantic differences between
the two interfaces are described in the subsections below.

Interface Header

The XTI interfaces use the header file, xti.h. TLI interfaces should
not use this header. They should use the header:
#include <tiuser.h>

Error Description Values

The t_errno values that can be set by the XTI interface and cannot be
set by the TLI interface are:
TPROTO
TOUTSTATE

ATTRIBUTES