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_cr_util.c 34 * 35 * PURPOSE: Manage CR (Connection Request) structure 36 * 37 * $Id: dapl_cr_util.c,v 1.7 2003/08/08 19:20:05 sjs2 Exp $ 38 */ 39 40 #include "dapl.h" 41 #include "dapl_cr_util.h" 42 43 /* 44 * dapls_cr_create 45 * 46 * Create a CR. Part of the passive side of a connection 47 * 48 * Input: 49 * ia_ptr 50 * cno_ptr 51 * qlen 52 * evd_flags 53 * 54 * Output: 55 * evd_ptr_ptr 56 * 57 * Returns: 58 * none 59 * 60 */ 61 62 DAPL_CR * dapls_cr_alloc(DAPL_IA * ia_ptr)63dapls_cr_alloc( 64 DAPL_IA *ia_ptr) 65 { 66 DAPL_CR *cr_ptr; 67 68 /* Allocate EP */ 69 cr_ptr = (DAPL_CR *)dapl_os_alloc(sizeof (DAPL_CR)); 70 if (cr_ptr == NULL) { 71 return (NULL); 72 } 73 74 /* zero the structure */ 75 (void) dapl_os_memzero(cr_ptr, sizeof (DAPL_CR)); 76 77 /* 78 * initialize the header 79 */ 80 cr_ptr->header.provider = ia_ptr->header.provider; 81 cr_ptr->header.magic = DAPL_MAGIC_CR; 82 cr_ptr->header.handle_type = DAT_HANDLE_TYPE_CR; 83 cr_ptr->header.owner_ia = ia_ptr; 84 cr_ptr->header.user_context.as_64 = 0; 85 cr_ptr->header.user_context.as_ptr = NULL; 86 dapl_llist_init_entry(&cr_ptr->header.ia_list_entry); 87 dapl_os_lock_init(&cr_ptr->header.lock); 88 89 return (cr_ptr); 90 } 91 92 93 /* 94 * dapls_cr_free 95 * 96 * Free the passed in EP structure. 97 * 98 * Input: 99 * entry point pointer 100 * 101 * Output: 102 * none 103 * 104 * Returns: 105 * none 106 * 107 */ 108 void dapls_cr_free(IN DAPL_CR * cr_ptr)109dapls_cr_free( 110 IN DAPL_CR *cr_ptr) 111 { 112 dapl_os_assert(cr_ptr->header.magic == DAPL_MAGIC_CR || 113 cr_ptr->header.magic == DAPL_MAGIC_CR_DESTROYED); 114 115 /* reset magic to prevent reuse */ 116 cr_ptr->header.magic = DAPL_MAGIC_INVALID; 117 dapl_os_free(cr_ptr, sizeof (DAPL_CR)); 118 } 119