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121 lines
3 KiB
Bash
Executable file
121 lines
3 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2014 EMC Corp.
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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 AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# Stress shchan allocations.
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. ../default.cfg
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[ `swapinfo | wc -l` -eq 1 ] && exit 0 # kstack allocation failed
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > pthread5.c
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mycc -o pthread5 -Wall -Wextra -O2 pthread5.c -lpthread || exit 1
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rm -f pthread5.c
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/tmp/pthread5
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rm -f /tmp/pthread5
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exit 0
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EOF
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#include <sys/types.h>
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#include <err.h>
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#include <errno.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/event.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <unistd.h>
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#define ITER 2
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#define PARALLEL 1000
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#define THREADS 100
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pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
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pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
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static void *
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nicethreads(void *data __unused)
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{
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struct timespec ts;
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struct timeval tp;
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pthread_mutex_lock(&mutex);
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gettimeofday(&tp, NULL);
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ts.tv_sec = tp.tv_sec;
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ts.tv_nsec = tp.tv_usec * 1000;
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ts.tv_sec += 30;
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pthread_cond_timedwait(&cond, &mutex, &ts);
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pthread_mutex_unlock(&mutex);
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return (NULL);
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}
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int
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test(void)
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{
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int num_thread = THREADS;
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pthread_t tid[num_thread];
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int i, iter, rc;
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for (iter = 0; iter < ITER; iter++) {
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for (i = 0; i < num_thread; i++) {
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if ((rc = pthread_create(&tid[i], NULL, nicethreads,
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NULL)) != 0)
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errc(1, rc, "pthread_create");
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}
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usleep(20000);
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for (i = 0; i < num_thread; i++) {
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rc = pthread_mutex_lock(&mutex);
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rc = pthread_cond_signal(&cond);
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rc = pthread_mutex_unlock(&mutex);
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}
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for (i = 0; i < num_thread; i++)
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if ((rc = pthread_join(tid[i], NULL)) != 0)
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errc(1, rc, "pthread_join");
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}
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_exit(0);
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}
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int
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main(void)
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{
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int i;
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for (i = 0; i < PARALLEL; i++)
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if (fork() == 0)
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test();
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for (i = 0; i < PARALLEL; i++)
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wait(NULL);
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return (0);
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}
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