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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "cache.h"
nsc_keephot_t *
maken(int n)
{
nsc_keephot_t *ret;
++n;
ret = (nsc_keephot_t *)calloc(n, sizeof (nsc_keephot_t));
if (ret == NULL)
return (NULL);
ret[0].num = n - 1;
return (ret);
}
void *
insertn(nsc_keephot_t *table, uint_t n, void *data)
{
void *olddata;
int size, guess, base, last;
if (n < 1 || table[1].num > n) {
return (data);
}
size = table[0].num;
if (table[size].num < n) /* biggest so far */
guess = size;
else {
base = 1;
last = size;
while (last >= base) {
guess = (last+base)/2;
if (table[guess].num == n)
goto doit;
if (table[guess].num > n)
last = guess - 1;
else
base = guess + 1;
}
guess = last;
}
doit:
olddata = table[1].ptr;
(void) memmove(table + 1, table + 2,
sizeof (nsc_keephot_t) * (guess-1));
table[guess].ptr = data;
table[guess].num = n;
return (olddata);
}
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