dapl_pz_util.c revision 9e39c5ba00a55fa05777cc94b148296af305e135
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
82a2fc4751cef28c0bdc327d02012bf8796083b9James Carlson * CDDL HEADER START
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * The contents of this file are subject to the terms of the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Common Development and Distribution License (the "License").
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * You may not use this file except in compliance with the License.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * or http://www.opensolaris.org/os/licensing.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * See the License for the specific language governing permissions
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * and limitations under the License.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * When distributing Covered Code, include this CDDL HEADER in each
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * If applicable, add the following below this CDDL HEADER, with the
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * fields enclosed by brackets "[]" replaced with your own identifying
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * information: Portions Copyright [yyyy] [name of copyright owner]
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * CDDL HEADER END
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Copyright (c) 2002-2003, Network Appliance, Inc. All rights reserved.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Use is subject to license terms.
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * MODULE: dapl_pz_util.c
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * PURPOSE: Manage PZ structure
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * $Id: dapl_pz_util.c,v 1.7 2003/06/13 12:21:11 sjs2 Exp $
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#include "dapl_pz_util.h"
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc#include "dapl_ia_util.h"
82a2fc4751cef28c0bdc327d02012bf8796083b9James Carlson
82a2fc4751cef28c0bdc327d02012bf8796083b9James Carlson/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * dapl_pz_alloc
82a2fc4751cef28c0bdc327d02012bf8796083b9James Carlson *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * alloc and initialize an PZ struct
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Input:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * none
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Output:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * pz_ptr
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Returns:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * none
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf *
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf */
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zfDAPL_PZ *
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zfdapl_pz_alloc(
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf IN DAPL_IA *ia)
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf{
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf DAPL_PZ *pz;
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf /* Allocate PZ */
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf pz = (DAPL_PZ *) dapl_os_alloc(sizeof (DAPL_PZ));
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf if (NULL == pz) {
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf return (NULL);
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf }
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /* zero the structure */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc (void) dapl_os_memzero(pz, sizeof (DAPL_PZ));
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * initialize the header
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.provider = ia->header.provider;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.magic = DAPL_MAGIC_PZ;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.handle_type = DAT_HANDLE_TYPE_PZ;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.owner_ia = ia;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.user_context.as_64 = 0;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->header.user_context.as_ptr = NULL;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc dapl_llist_init_entry(&pz->header.ia_list_entry);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc dapl_ia_link_pz(ia, pz);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc dapl_os_lock_init(&pz->header.lock);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc /*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * initialize the body
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc pz->pz_ref_count = 0;
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc return (pz);
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc}
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc/*
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * dapl_pz_dealloc
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * free an PZ struct
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Input:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * pz_ptr
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf * Output:
fb91fd8a302dfb13e250bbefb6a3970c2edc3ae3zf * none
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * Returns:
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc * none
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc *
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxc */
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcvoid
0ba2cbe97e0678a691742f98d2532caed0a2c4aaxcdapl_pz_dealloc(
a399b7655a1d835aa8606c2b29e4e777baac8635zf IN DAPL_PZ *pz)
a399b7655a1d835aa8606c2b29e4e777baac8635zf{
a399b7655a1d835aa8606c2b29e4e777baac8635zf /* reset magic to prevent reuse */
a399b7655a1d835aa8606c2b29e4e777baac8635zf pz->header.magic = DAPL_MAGIC_INVALID;
a399b7655a1d835aa8606c2b29e4e777baac8635zf dapl_ia_unlink_pz(pz->header.owner_ia, pz);
a399b7655a1d835aa8606c2b29e4e777baac8635zf dapl_os_lock_destroy(&pz->header.lock);
a399b7655a1d835aa8606c2b29e4e777baac8635zf
a399b7655a1d835aa8606c2b29e4e777baac8635zf dapl_os_free(pz, sizeof (DAPL_PZ));
a399b7655a1d835aa8606c2b29e4e777baac8635zf}
a399b7655a1d835aa8606c2b29e4e777baac8635zf