1#!/bin/sh 2 3# 4# Copyright (c) 2014 EMC Corp. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# Stress shchan allocations. 30 31. ../default.cfg 32[ `swapinfo | wc -l` -eq 1 ] && exit 0 # kstack allocation failed 33 34here=`pwd` 35cd /tmp 36sed '1,/^EOF/d' < $here/$0 > pthread5.c 37mycc -o pthread5 -Wall -Wextra -O2 pthread5.c -lpthread || exit 1 38rm -f pthread5.c 39 40/tmp/pthread5 41 42rm -f /tmp/pthread5 43exit 0 44EOF 45#include <sys/types.h> 46#include <err.h> 47#include <errno.h> 48#include <pthread.h> 49#include <stdio.h> 50#include <stdlib.h> 51#include <sys/event.h> 52#include <sys/time.h> 53#include <sys/wait.h> 54#include <unistd.h> 55 56#define ITER 2 57#define PARALLEL 1000 58#define THREADS 100 59 60pthread_cond_t cond = PTHREAD_COND_INITIALIZER; 61pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; 62 63static void * 64nicethreads(void *data __unused) 65{ 66 struct timespec ts; 67 struct timeval tp; 68 69 pthread_mutex_lock(&mutex); 70 gettimeofday(&tp, NULL); 71 72 ts.tv_sec = tp.tv_sec; 73 ts.tv_nsec = tp.tv_usec * 1000; 74 ts.tv_sec += 30; 75 76 pthread_cond_timedwait(&cond, &mutex, &ts); 77 pthread_mutex_unlock(&mutex); 78 79 return (NULL); 80} 81 82int 83test(void) 84{ 85 int num_thread = THREADS; 86 pthread_t tid[num_thread]; 87 int i, iter, rc; 88 89 for (iter = 0; iter < ITER; iter++) { 90 for (i = 0; i < num_thread; i++) { 91 if ((rc = pthread_create(&tid[i], NULL, nicethreads, 92 NULL)) != 0) 93 errc(1, rc, "pthread_create"); 94 } 95 usleep(20000); 96 for (i = 0; i < num_thread; i++) { 97 rc = pthread_mutex_lock(&mutex); 98 rc = pthread_cond_signal(&cond); 99 rc = pthread_mutex_unlock(&mutex); 100 } 101 for (i = 0; i < num_thread; i++) 102 if ((rc = pthread_join(tid[i], NULL)) != 0) 103 errc(1, rc, "pthread_join"); 104 } 105 106 _exit(0); 107} 108 109int 110main(void) 111{ 112 int i; 113 114 for (i = 0; i < PARALLEL; i++) 115 if (fork() == 0) 116 test(); 117 for (i = 0; i < PARALLEL; i++) 118 wait(NULL); 119 120 return (0); 121} 122