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/*
* 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 (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <mdb/mdb_addrvec.h>
#include <mdb/mdb_debug.h>
#include <mdb/mdb_modapi.h>
#include <strings.h>
#define AD_INIT 16 /* initial size of addrvec array */
#define AD_GROW 2 /* array growth multiplier */
void
mdb_addrvec_create(mdb_addrvec_t *adp)
{
bzero(adp, sizeof (mdb_addrvec_t));
}
void
mdb_addrvec_destroy(mdb_addrvec_t *adp)
{
mdb_free(adp->ad_data, sizeof (uintptr_t) * adp->ad_size);
bzero(adp, sizeof (mdb_addrvec_t));
}
void
mdb_addrvec_unshift(mdb_addrvec_t *adp, uintptr_t value)
{
if (adp->ad_nelems >= adp->ad_size) {
size_t size = adp->ad_size ? adp->ad_size * AD_GROW : AD_INIT;
void *data = mdb_alloc(sizeof (uintptr_t) * size, UM_SLEEP);
bcopy(adp->ad_data, data, sizeof (uintptr_t) * adp->ad_size);
mdb_free(adp->ad_data, sizeof (uintptr_t) * adp->ad_size);
adp->ad_data = data;
adp->ad_size = size;
}
adp->ad_data[adp->ad_nelems++] = value;
}
uintptr_t
mdb_addrvec_shift(mdb_addrvec_t *adp)
{
if (adp->ad_ndx < adp->ad_nelems)
return (adp->ad_data[adp->ad_ndx++]);
return ((uintptr_t)-1L);
}
size_t
mdb_addrvec_length(mdb_addrvec_t *adp)
{
if (adp != NULL) {
ASSERT(adp->ad_nelems >= adp->ad_ndx);
return (adp->ad_nelems - adp->ad_ndx);
}
return (0); /* convenience for callers */
}