/*
 * Copyright (c) 2000 Alfred Perlstein
 * Author: Alfred Perlstein <alfred@paycounter.com>, <alfred@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD$
 */

#ifndef _SYS_MEMCACHE_H_
#define _SYS_MEMCACHE_H_

struct memcache_mgr;

/* sm_flags */
#define	MEMCACHE_ZERO	0x0001	/* get allocations from zero'd memory */
#define	MEMCACHE_STABLE	0x0002	/* don't free memory back to general pool */
#define	MEMCACHE_NOGROW	0x0004	/* don't grow from initial allocation */
#define	MEMCACHE_PANIC	0x0008	/* panic on any fail instead of NULL return */
#define	MEMCACHE_NOWAIT	0x0010	/* don't wait for memory */

struct memcache_mgr * memcache_create(char *sname, int size, int max,
	int (*ctor)(void *, int), void (*dtor)(void *, int), int flags);

void memcache_adjust(struct memcache_mgr *smp, int max, int flags);
void *memcache_alloc(struct memcache_mgr *smp);
void memcache_free(void *p);

#endif /* _SYS_MEMCACHE_H_ */