1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22 /*
23 * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24 */
25
26 /*
27 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
28 * Use is subject to license terms.
29 */
30
31 /*
32 *
33 * MODULE: dapl_cno_free.c
34 *
35 * PURPOSE: Consumer Notification Object destruction
36 * Description: Interfaces in this file are completely described in
37 * the DAPL 1.1 API, Chapter 6, section 3.2.2
38 *
39 * $Id: dapl_cno_free.c,v 1.5 2003/06/16 17:53:32 sjs2 Exp $
40 */
41
42 #include "dapl.h"
43 #include "dapl_ia_util.h"
44 #include "dapl_cno_util.h"
45 #include "dapl_adapter_util.h"
46
47 /*
48 * dapl_cno_free
49 *
50 * DAPL Requirements Version xxx, 6.3.2.2
51 *
52 * Destroy a consumer notification object instance
53 *
54 * Input:
55 * cno_handle
56 *
57 * Output:
58 * none
59 *
60 * Returns:
61 * DAT_SUCCESS
62 * DAT_INVALID_HANDLE
63 * DAT_INVALID_STATE
64 */
65 DAT_RETURN
dapl_cno_free(IN DAT_CNO_HANDLE cno_handle)66 dapl_cno_free(
67 IN DAT_CNO_HANDLE cno_handle) /* cno_handle */
68 {
69 DAPL_CNO *cno_ptr;
70 DAT_RETURN dat_status;
71
72 dat_status = DAT_SUCCESS;
73 cno_ptr = (DAPL_CNO *)cno_handle;
74
75 if (DAPL_BAD_HANDLE(cno_handle, DAPL_MAGIC_CNO)) {
76 dat_status = DAT_ERROR(DAT_INVALID_HANDLE,
77 DAT_INVALID_HANDLE_CNO);
78 goto bail;
79 }
80
81 if (cno_ptr->cno_ref_count != 0 || cno_ptr->cno_waiters != 0) {
82 dat_status = DAT_ERROR(DAT_INVALID_STATE,
83 DAT_INVALID_STATE_CNO_IN_USE);
84 goto bail;
85 }
86
87 dapl_os_lock(&cno_ptr->header.lock);
88 if (!dapl_llist_is_empty(&cno_ptr->evd_list_head)) {
89 dapl_dbg_log(DAPL_DBG_TYPE_UTIL,
90 "cno_free: evd list not empty!\n");
91 dapl_os_unlock(&cno_ptr->header.lock);
92 dat_status = DAT_ERROR(DAT_INVALID_STATE,
93 DAT_INVALID_STATE_CNO_IN_USE);
94 goto bail;
95 }
96 dapl_os_unlock(&cno_ptr->header.lock);
97
98 dat_status = dapls_ib_cno_free(cno_ptr);
99 if (dat_status != DAT_SUCCESS) {
100 goto bail;
101 }
102
103 dapl_ia_unlink_cno(cno_ptr->header.owner_ia, cno_ptr);
104 dapl_cno_dealloc(cno_ptr);
105
106 bail:
107 return (dat_status);
108 }
109