mdb_umem.h revision 258e8624229ac7ff3af9890752a92cd251b83825
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _MDB_UMEM_H
#define _MDB_UMEM_H
#include <sys/types.h>
#include <limits.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef _MDB
#define UMEM_FREE_PATTERN 0xdefacedd
#define UMEM_UNINITIALIZED_PATTERN 0xbeefbabe
typedef struct mdb_mblk mdb_mblk_t;
/* Aligned allocation/frees are not available through the module API */
extern void *mdb_alloc_align(size_t, size_t, uint_t);
extern void mdb_free_align(void *, size_t);
extern void mdb_recycle(mdb_mblk_t **);
/*
* These values represent an attempt to help constrain dmods that have bugs and
* have accidentally underflowed their size arguments. They represent
* allocations that are impossible.
*/
#if defined(_ILP32)
#define MDB_ALLOC_MAX INT32_MAX
#elif defined(_LP64)
#define MDB_ALLOC_MAX INT64_MAX
#else
#error "Unknown data model"
#endif
#endif /* _MDB */
#ifdef __cplusplus
}
#endif
#endif /* _MDB_UMEM_H */