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/* $NetBSD: lockme.c,v 1.1 2011/01/06 13:12:52 pooka Exp $ */
/*-
* Copyright (c) 2011 The NetBSD Foundation, Inc.
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
#if !defined(lint)
__RCSID("$NetBSD: lockme.c,v 1.1 2011/01/06 13:12:52 pooka Exp $");
#endif /* !lint */
#include <sys/param.h>
#include <sys/kmem.h>
#include <sys/mutex.h>
#include <sys/rwlock.h>
#include "kernspace.h"
struct somemem {
char foo;
kmutex_t mutexetum;
char oof;
};
void
rumptest_lockme(enum locktest what)
{
struct somemem *some;
kmutex_t mtx;
krwlock_t rw;
rw_init(&rw);
mutex_init(&mtx, MUTEX_DEFAULT, IPL_NONE);
switch (what) {
case LOCKME_MTX:
mutex_enter(&mtx);
mutex_enter(&mtx);
break;
case LOCKME_RWDOUBLEX:
rw_enter(&rw, RW_WRITER);
rw_enter(&rw, RW_WRITER);
break;
case LOCKME_RWRX:
rw_enter(&rw, RW_READER);
rw_enter(&rw, RW_WRITER);
break;
case LOCKME_RWXR:
rw_enter(&rw, RW_WRITER);
rw_enter(&rw, RW_READER);
break;
case LOCKME_DOUBLEINIT:
mutex_init(&mtx, MUTEX_DEFAULT, IPL_NONE);
break;
case LOCKME_DOUBLEFREE:
mutex_destroy(&mtx);
mutex_destroy(&mtx);
break;
case LOCKME_DESTROYHELD:
mutex_enter(&mtx);
mutex_destroy(&mtx);
break;
case LOCKME_MEMFREE:
some = kmem_alloc(sizeof(*some), KM_SLEEP);
mutex_init(&some->mutexetum, MUTEX_DEFAULT, IPL_NONE);
kmem_free(some, sizeof(*some));
break;
}
}
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