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 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* 32 * 33 * MODULE: dapl_evd_set_unwaitable.c 34 * 35 * PURPOSE: EVENT management 36 * Description: Interfaces in this file are completely described in 37 * the DAPL 1.1 API, Chapter 6, section 3.4.7 38 * 39 * $Id: dapl_evd_set_unwaitable.c,v 1.2 2003/08/20 13:18:36 sjs2 Exp $ 40 */ 41 42 #include "dapl.h" 43 44 /* 45 * dapl_evd_set_unwaitable 46 * 47 * DAPL Requirements Version 1.1, 6.3.4.7 48 * 49 * Transition the Event Dispatcher into an unwaitable state 50 * 51 * Input: 52 * evd_handle 53 * 54 * Output: 55 * none 56 * 57 * Returns: 58 * DAT_SUCCESS 59 * DAT_INVALID_HANDLE 60 */ 61 DAT_RETURN 62 dapl_evd_set_unwaitable( 63 IN DAT_EVD_HANDLE evd_handle) 64 { 65 DAPL_EVD *evd_ptr; 66 DAT_RETURN dat_status; 67 68 evd_ptr = (DAPL_EVD *)evd_handle; 69 dat_status = DAT_SUCCESS; 70 71 if (DAPL_BAD_HANDLE(evd_handle, DAPL_MAGIC_EVD)) { 72 dat_status = DAT_ERROR(DAT_INVALID_HANDLE, 0); 73 goto bail; 74 } 75 dapl_os_lock(&evd_ptr->header.lock); 76 evd_ptr->evd_waitable = DAT_FALSE; 77 dapl_os_unlock(&evd_ptr->header.lock); 78 79 /* 80 * If this evd is waiting, wake it up. There is an obvious race 81 * condition here where we may wakeup the waiter before it goes to 82 * sleep; but the wait_object allows this and will do the right 83 * thing. 84 */ 85 if (evd_ptr->evd_state == DAPL_EVD_STATE_WAITED) { 86 (void) dapl_os_wait_object_wakeup(&evd_ptr->wait_object); 87 } 88 bail: 89 return (dat_status); 90 } 91 92 /* 93 * Local variables: 94 * c-indent-level: 4 95 * c-basic-offset: 4 96 * tab-width: 8 97 * End: 98 */ 99