4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
27 /* #pragma ident "@(#)vmem_base.c 1.6 05/06/08 SMI" */
29 /* #include "mtlib.h" */
31 #include "vmem_base.h"
32 #include "umem_base.h"
34 uint_t vmem_backend = 0;
37 vmem_heap_arena(vmem_alloc_t **allocp, vmem_free_t **freep)
39 static mutex_t arena_mutex = DEFAULTMUTEX;
42 * Allow the init thread through, block others until the init completes
44 if (umem_ready != UMEM_READY && umem_init_thr != thr_self() &&
48 (void) mutex_lock(&arena_mutex);
49 if (vmem_heap == NULL)
51 (void) mutex_unlock(&arena_mutex);
54 *allocp = vmem_heap_alloc;
56 *freep = vmem_heap_free;