109 lines
2.8 KiB
C
109 lines
2.8 KiB
C
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/* $NetBSD: thread.c,v 1.2 2011/08/07 14:03:15 rmind Exp $ */
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/*-
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* Copyright (c) 2010 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND
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* CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if !defined(lint)
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__RCSID("$NetBSD: thread.c,v 1.2 2011/08/07 14:03:15 rmind Exp $");
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#endif /* !lint */
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include "kernspace.h"
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static volatile int testit;
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static void
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jointhread(void *arg)
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{
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kpause("take5", false, 1, NULL);
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testit = 1;
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kthread_exit(0);
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}
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void
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rumptest_threadjoin()
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{
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struct lwp *newl;
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int rv;
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rv = kthread_create(PRI_NONE, KTHREAD_MUSTJOIN | KTHREAD_MPSAFE, NULL,
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jointhread, NULL, &newl, "jointest");
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if (rv)
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panic("thread creation failed: %d", rv);
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rv = kthread_join(newl);
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if (rv)
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panic("thread join failed: %d", rv);
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if (testit != 1)
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panic("new thread did not run");
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}
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static kmutex_t mtx;
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static kcondvar_t cv;
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static int value;
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static void
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thethread(void *arg)
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{
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mutex_enter(&mtx);
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value = 1;
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cv_signal(&cv);
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mutex_exit(&mtx);
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kthread_exit(0);
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}
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void
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rumptest_thread()
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{
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struct lwp *newl;
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int rv;
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mutex_init(&mtx, MUTEX_DEFAULT, IPL_NONE);
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cv_init(&cv, "jooei");
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rv = kthread_create(PRI_NONE, KTHREAD_MPSAFE, NULL,
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thethread, NULL, &newl, "ktest");
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if (rv)
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panic("thread creation failed: %d", rv);
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mutex_enter(&mtx);
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while (value == 0)
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cv_wait(&cv, &mtx);
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mutex_exit(&mtx);
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/* try to verify thread really exists and we don't crash */
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kpause("take1", false, 1, NULL);
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}
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