/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.4 */
/*
* t_sndrel.c and t_sndreldata.c are very similar and contain common code.
* Any changes to either of them should be reviewed to see whether they
* are applicable to the other file.
*/
#include "mt.h"
#include <errno.h>
#include <stropts.h>
#include <sys/stream.h>
#define _SUN_TPI_VERSION 2
#include <sys/tihdr.h>
#include <sys/timod.h>
#include <xti.h>
#include "tx.h"
int
_tx_sndrel(int fd, int api_semantics)
{
struct T_ordrel_req orreq;
struct strbuf ctlbuf;
struct _ti_user *tiptr;
if ((tiptr = _t_checkfd(fd, 0, api_semantics)) == NULL)
return (-1);
sig_mutex_lock(&tiptr->ti_lock);
if (tiptr->ti_servtype != T_COTS_ORD) {
t_errno = TNOTSUPPORT;
sig_mutex_unlock(&tiptr->ti_lock);
return (-1);
}
if (_T_IS_XTI(api_semantics)) {
/*
* User level state verification only done for XTI
* because doing for TLI may break existing applications
*/
if (!(tiptr->ti_state == T_DATAXFER ||
tiptr->ti_state == T_INREL)) {
t_errno = TOUTSTATE;
sig_mutex_unlock(&tiptr->ti_lock);
return (-1);
}
if (_t_look_locked(fd, tiptr, 0,
api_semantics) == T_DISCONNECT) {
t_errno = TLOOK;
sig_mutex_unlock(&tiptr->ti_lock);
return (-1);
}
}
orreq.PRIM_type = T_ORDREL_REQ;
ctlbuf.maxlen = (int)sizeof (struct T_ordrel_req);
ctlbuf.len = (int)sizeof (struct T_ordrel_req);
ctlbuf.buf = (caddr_t)&orreq;
/*
* Calls to send data (write or putmsg) can potentially
* block, for MT case, we drop the lock and enable signals here
* and acquire it back
*/
sig_mutex_unlock(&tiptr->ti_lock);
if (putmsg(fd, &ctlbuf, NULL, 0) < 0) {
if (errno == EAGAIN)
t_errno = TFLOW;
else
t_errno = TSYSERR;
return (-1);
}
sig_mutex_lock(&tiptr->ti_lock);
_T_TX_NEXTSTATE(T_SNDREL, tiptr,
"t_sndrel: invalid state on event T_SNDREL");
sig_mutex_unlock(&tiptr->ti_lock);
return (0);
}