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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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/*
* Copyright 2019 Joyent, Inc.
*/
#include <libintl.h>
#include <string.h>
#include <stdlib.h>
#include <libuutil.h>
#include "idtab.h"
#define IDTAB_GROW 2 /* Table size multiplier on grow */
#define IDTAB_DEFSIZE 16 /* Starting table size */
void
idtab_create(idtab_t *idt)
{
(void) memset(idt, 0, sizeof (idtab_t));
}
void
idtab_destroy(idtab_t *idt)
{
if (idt->id_data) {
free(idt->id_data);
idt->id_data = NULL;
idt->id_nelems = idt->id_size = 0;
}
}
void
idtab_append(idtab_t *idt, idkey_t id)
{
size_t size;
void *data;
if (idt->id_nelems >= idt->id_size) {
size = idt->id_size ? idt->id_size * IDTAB_GROW : IDTAB_DEFSIZE;
if ((data = realloc(idt->id_data,
sizeof (idkey_t) * size)) != NULL) {
idt->id_data = data;
idt->id_size = size;
} else {
uu_die(gettext("Failed to grow table"));
}
}
idt->id_data[idt->id_nelems++] = id;
}
static int
idtab_compare(const void *lhsp, const void *rhsp)
{
idkey_t lhs = *((idkey_t *)lhsp);
idkey_t rhs = *((idkey_t *)rhsp);
if (lhs == rhs)
return (0);
return (lhs > rhs ? 1 : -1);
}
void
idtab_sort(idtab_t *idt)
{
if (idt->id_data) {
qsort(idt->id_data, idt->id_nelems,
sizeof (idkey_t), idtab_compare);
}
}
int
idtab_search(idtab_t *idt, idkey_t id)
{
return (bsearch(&id, idt->id_data, idt->id_nelems,
sizeof (idkey_t), idtab_compare) != NULL);
}
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