1*9e39c5baSBill Taylor /*
2*9e39c5baSBill Taylor * CDDL HEADER START
3*9e39c5baSBill Taylor *
4*9e39c5baSBill Taylor * The contents of this file are subject to the terms of the
5*9e39c5baSBill Taylor * Common Development and Distribution License (the "License").
6*9e39c5baSBill Taylor * You may not use this file except in compliance with the License.
7*9e39c5baSBill Taylor *
8*9e39c5baSBill Taylor * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*9e39c5baSBill Taylor * or http://www.opensolaris.org/os/licensing.
10*9e39c5baSBill Taylor * See the License for the specific language governing permissions
11*9e39c5baSBill Taylor * and limitations under the License.
12*9e39c5baSBill Taylor *
13*9e39c5baSBill Taylor * When distributing Covered Code, include this CDDL HEADER in each
14*9e39c5baSBill Taylor * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*9e39c5baSBill Taylor * If applicable, add the following below this CDDL HEADER, with the
16*9e39c5baSBill Taylor * fields enclosed by brackets "[]" replaced with your own identifying
17*9e39c5baSBill Taylor * information: Portions Copyright [yyyy] [name of copyright owner]
18*9e39c5baSBill Taylor *
19*9e39c5baSBill Taylor * CDDL HEADER END
20*9e39c5baSBill Taylor */
21*9e39c5baSBill Taylor
22*9e39c5baSBill Taylor /*
23*9e39c5baSBill Taylor * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
24*9e39c5baSBill Taylor */
25*9e39c5baSBill Taylor
26*9e39c5baSBill Taylor /*
27*9e39c5baSBill Taylor * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28*9e39c5baSBill Taylor * Use is subject to license terms.
29*9e39c5baSBill Taylor */
30*9e39c5baSBill Taylor
31*9e39c5baSBill Taylor /*
32*9e39c5baSBill Taylor *
33*9e39c5baSBill Taylor * MODULE: dapl_evd_set_unwaitable.c
34*9e39c5baSBill Taylor *
35*9e39c5baSBill Taylor * PURPOSE: EVENT management
36*9e39c5baSBill Taylor * Description: Interfaces in this file are completely described in
37*9e39c5baSBill Taylor * the DAPL 1.1 API, Chapter 6, section 3.4.7
38*9e39c5baSBill Taylor *
39*9e39c5baSBill Taylor * $Id: dapl_evd_set_unwaitable.c,v 1.2 2003/08/20 13:18:36 sjs2 Exp $
40*9e39c5baSBill Taylor */
41*9e39c5baSBill Taylor
42*9e39c5baSBill Taylor #include "dapl.h"
43*9e39c5baSBill Taylor
44*9e39c5baSBill Taylor /*
45*9e39c5baSBill Taylor * dapl_evd_set_unwaitable
46*9e39c5baSBill Taylor *
47*9e39c5baSBill Taylor * DAPL Requirements Version 1.1, 6.3.4.7
48*9e39c5baSBill Taylor *
49*9e39c5baSBill Taylor * Transition the Event Dispatcher into an unwaitable state
50*9e39c5baSBill Taylor *
51*9e39c5baSBill Taylor * Input:
52*9e39c5baSBill Taylor * evd_handle
53*9e39c5baSBill Taylor *
54*9e39c5baSBill Taylor * Output:
55*9e39c5baSBill Taylor * none
56*9e39c5baSBill Taylor *
57*9e39c5baSBill Taylor * Returns:
58*9e39c5baSBill Taylor * DAT_SUCCESS
59*9e39c5baSBill Taylor * DAT_INVALID_HANDLE
60*9e39c5baSBill Taylor */
61*9e39c5baSBill Taylor DAT_RETURN
dapl_evd_set_unwaitable(IN DAT_EVD_HANDLE evd_handle)62*9e39c5baSBill Taylor dapl_evd_set_unwaitable(
63*9e39c5baSBill Taylor IN DAT_EVD_HANDLE evd_handle)
64*9e39c5baSBill Taylor {
65*9e39c5baSBill Taylor DAPL_EVD *evd_ptr;
66*9e39c5baSBill Taylor DAT_RETURN dat_status;
67*9e39c5baSBill Taylor
68*9e39c5baSBill Taylor evd_ptr = (DAPL_EVD *)evd_handle;
69*9e39c5baSBill Taylor dat_status = DAT_SUCCESS;
70*9e39c5baSBill Taylor
71*9e39c5baSBill Taylor if (DAPL_BAD_HANDLE(evd_handle, DAPL_MAGIC_EVD)) {
72*9e39c5baSBill Taylor dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 0);
73*9e39c5baSBill Taylor goto bail;
74*9e39c5baSBill Taylor }
75*9e39c5baSBill Taylor dapl_os_lock(&evd_ptr->header.lock);
76*9e39c5baSBill Taylor evd_ptr->evd_waitable = DAT_FALSE;
77*9e39c5baSBill Taylor dapl_os_unlock(&evd_ptr->header.lock);
78*9e39c5baSBill Taylor
79*9e39c5baSBill Taylor /*
80*9e39c5baSBill Taylor * If this evd is waiting, wake it up. There is an obvious race
81*9e39c5baSBill Taylor * condition here where we may wakeup the waiter before it goes to
82*9e39c5baSBill Taylor * sleep; but the wait_object allows this and will do the right
83*9e39c5baSBill Taylor * thing.
84*9e39c5baSBill Taylor */
85*9e39c5baSBill Taylor if (evd_ptr->evd_state == DAPL_EVD_STATE_WAITED) {
86*9e39c5baSBill Taylor (void) dapl_os_wait_object_wakeup(&evd_ptr->wait_object);
87*9e39c5baSBill Taylor }
88*9e39c5baSBill Taylor bail:
89*9e39c5baSBill Taylor return (dat_status);
90*9e39c5baSBill Taylor }
91*9e39c5baSBill Taylor
92*9e39c5baSBill Taylor /*
93*9e39c5baSBill Taylor * Local variables:
94*9e39c5baSBill Taylor * c-indent-level: 4
95*9e39c5baSBill Taylor * c-basic-offset: 4
96*9e39c5baSBill Taylor * tab-width: 8
97*9e39c5baSBill Taylor * End:
98*9e39c5baSBill Taylor */
99