minix/tests/rump/kernspace/thread.c

109 lines
2.8 KiB
C
Raw Normal View History

/* $NetBSD: thread.c,v 1.2 2011/08/07 14:03:15 rmind Exp $ */
/*-
* Copyright (c) 2010 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: thread.c,v 1.2 2011/08/07 14:03:15 rmind Exp $");
#endif /* !lint */
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/kthread.h>
#include <sys/mutex.h>
#include <sys/proc.h>
#include "kernspace.h"
static volatile int testit;
static void
jointhread(void *arg)
{
kpause("take5", false, 1, NULL);
testit = 1;
kthread_exit(0);
}
void
rumptest_threadjoin()
{
struct lwp *newl;
int rv;
rv = kthread_create(PRI_NONE, KTHREAD_MUSTJOIN | KTHREAD_MPSAFE, NULL,
jointhread, NULL, &newl, "jointest");
if (rv)
panic("thread creation failed: %d", rv);
rv = kthread_join(newl);
if (rv)
panic("thread join failed: %d", rv);
if (testit != 1)
panic("new thread did not run");
}
static kmutex_t mtx;
static kcondvar_t cv;
static int value;
static void
thethread(void *arg)
{
mutex_enter(&mtx);
value = 1;
cv_signal(&cv);
mutex_exit(&mtx);
kthread_exit(0);
}
void
rumptest_thread()
{
struct lwp *newl;
int rv;
mutex_init(&mtx, MUTEX_DEFAULT, IPL_NONE);
cv_init(&cv, "jooei");
rv = kthread_create(PRI_NONE, KTHREAD_MPSAFE, NULL,
thethread, NULL, &newl, "ktest");
if (rv)
panic("thread creation failed: %d", rv);
mutex_enter(&mtx);
while (value == 0)
cv_wait(&cv, &mtx);
mutex_exit(&mtx);
/* try to verify thread really exists and we don't crash */
kpause("take1", false, 1, NULL);
}