nvpair_alloc_fixed.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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
* 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.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/isa_defs.h>
#include <sys/sysmacros.h>
#else
#include <stdarg.h>
#include <strings.h>
#endif
/*
* This allocator is very simple.
* - it uses a pre-allocated buffer for memory allocations.
* - it does _not_ free memory in the pre-allocated buffer.
*
* The reason for the selected implemention is simplicity.
* This allocator is designed for the usage in interrupt context when
* the caller may not wait for free memory.
*/
/* pre-allocated buffer for memory allocations */
typedef struct nvbuf {
} nvbuf_t;
/*
* Initialize the pre-allocated buffer allocator. The caller needs to supply
*
* buf address of pre-allocated buffer
* bufsz size of pre-allocated buffer
*
* nv_fixed_init() calculates the remaining members of nvbuf_t.
*/
static int
{
return (EINVAL);
return (0);
}
static void *
{
return (NULL);
return ((void *)new);
}
/*ARGSUSED*/
static void
{
/* don't free memory in the pre-allocated buffer */
}
static void
{
}
const nv_alloc_ops_t nv_fixed_ops_def = {
nv_fixed_init, /* nv_ao_init() */
NULL, /* nv_ao_fini() */
nv_fixed_alloc, /* nv_ao_alloc() */
nv_fixed_free, /* nv_ao_free() */
nv_fixed_reset /* nv_ao_reset() */
};