diff options
Diffstat (limited to 'contrib/netbsd-tests/rump/kernspace/lockme.c')
-rw-r--r-- | contrib/netbsd-tests/rump/kernspace/lockme.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/contrib/netbsd-tests/rump/kernspace/lockme.c b/contrib/netbsd-tests/rump/kernspace/lockme.c new file mode 100644 index 0000000..6f9bd58 --- /dev/null +++ b/contrib/netbsd-tests/rump/kernspace/lockme.c @@ -0,0 +1,92 @@ +/* $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; + } +} |