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AIX Version 4.3 Communications Technical Reference, Volume 2

t_rcvrel Subroutine for X/Open Transport Interface


Acknowledging receipt of an orderly release indication.


X/Open Transport Interface Library (libxti.a)


#include <xti.h>
int t_rcvrel (fd)
int fd;


The t_rcvrel subroutine is used to acknowledge receipt of an orderly release indication. After receipt of this indication, the user may not attempt to receive more data because such an attempt will block forever. However, the user may continue to send data over the connection if the t_sndrel subroutine 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 the T_COTS_ORD service type on t_open or t_getinfo calls.


fd Identifies the local transport endpoint where the connection exists.

Valid States


Return Values

0 Successful completion.
-1 t_errno is set to indicate an error.

Error Codes

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 subroutine is not supported by the underlying transport provider.
TOUTSTATE The subroutine was issued in the wrong sequence on the transport endpoint referenced by the fd parameter.
TPROTO This error indicates that a communication problem has been detected between the X/Open Transport Interface and the transport provider for which there is no other suitable X/Open Transport Interface (t_errno).
TSYSERR A system error has occurred during execution of this subroutine.

Related Information

The t_getinfo subroutine, t_open subroutine, t_sndrel subroutine.

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