305 lines
6.7 KiB
Bash
Executable File
305 lines
6.7 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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# _exit(2) test scenario with focus on shared channel tear down.
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > pthread3.c
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mycc -o pthread3 -Wall -Wextra -O2 -g -gdwarf-2 pthread3.c -lpthread || exit 1
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rm -f pthread3.c
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for i in `jot 8`; do
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/tmp/pthread3 &
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pids="$pids $!"
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done
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s=0
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for i in $pids; do
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wait $i
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e=$?
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[ $e -ne 0 ] && s=$e
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done
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rm -f /tmp/pthread3
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exit $s
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EOF
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/*
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* Threaded producer-consumer test.
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* Loosly based on work by
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* Andrey Zonov (c) 2012
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/queue.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#ifdef __FreeBSD__
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#include <pthread_np.h>
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#define __NP__
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#endif
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#include <sched.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/wait.h>
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#define LOCK(x) plock(&x.mtx)
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#define UNLOCK(x) punlock(&x.mtx)
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#define SIGNAL(x) psig(&x.wait)
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#define WAIT(x) pwait(&x.wait, &x.mtx)
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long ncreate, nrename, nunlink;
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int max;
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char *dirname1;
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char *dirname2;
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struct file {
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char *name;
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STAILQ_ENTRY(file) next;
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};
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struct files {
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pthread_mutex_t mtx;
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pthread_cond_t wait;
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STAILQ_HEAD(, file) list;
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};
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static struct files newfiles;
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static struct files renamedfiles;
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static void
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hand(int i __unused) { /* handler */
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fprintf(stderr, "max = %d, ncreate = %ld, nrename = %ld, nunlink = %ld\n",
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max, ncreate, nrename, nunlink);
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}
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static void
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ahand(int i __unused) { /* handler */
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fprintf(stderr, "FAIL\n");
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hand(0);
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_exit(0);
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}
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void
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plock(pthread_mutex_t *l)
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{
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int rc;
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if ((rc = pthread_mutex_lock(l)) != 0)
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errc(1, rc, "pthread_mutex_lock");
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}
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void
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punlock(pthread_mutex_t *l)
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{
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int rc;
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if ((rc = pthread_mutex_unlock(l)) != 0)
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errc(1, rc, "pthread_mutex_unlock");
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}
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void
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psig(pthread_cond_t *c)
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{
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int rc;
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if ((rc = pthread_cond_signal(c)) != 0)
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errc(1, rc, "pthread_cond_signal");
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}
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void
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pwait(pthread_cond_t *c, pthread_mutex_t *l)
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{
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int rc;
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if ((rc = pthread_cond_wait(c, l)) != 0)
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errc(1, rc, "pthread_cond_wait");
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}
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void *
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loop_create(void *arg __unused)
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{
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int i, j;
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struct file *file;
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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for (i = 0; i < max; i++) {
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file = malloc(sizeof(*file));
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asprintf(&file->name, "%s/filename_too-long:%d", dirname1, i);
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LOCK(newfiles);
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STAILQ_INSERT_TAIL(&newfiles.list, file, next);
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ncreate++;
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UNLOCK(newfiles);
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SIGNAL(newfiles);
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if ((i > 0) && (i % 100000 == 0))
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for (j = 0; j < 10 && ncreate != nrename; j++)
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usleep(400);
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}
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return (NULL);
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}
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void *
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loop_rename(void *arg __unused)
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{
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char *filename, *newname;
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struct file *file;
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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while (nrename < max) {
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LOCK(newfiles);
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while (STAILQ_EMPTY(&newfiles.list)) {
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WAIT(newfiles);
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}
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file = STAILQ_FIRST(&newfiles.list);
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STAILQ_REMOVE_HEAD(&newfiles.list, next);
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UNLOCK(newfiles);
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filename = strrchr(file->name, '/');
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asprintf(&newname, "%s/%s", dirname2, filename);
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nrename++;
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free(file->name);
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file->name = newname;
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LOCK(renamedfiles);
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STAILQ_INSERT_TAIL(&renamedfiles.list, file, next);
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UNLOCK(renamedfiles);
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SIGNAL(renamedfiles);
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}
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return (NULL);
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}
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void *
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loop_unlink(void *arg __unused)
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{
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struct file *file;
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#ifdef __NP__
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pthread_set_name_np(pthread_self(), __func__);
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#endif
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while (nunlink < max) {
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LOCK(renamedfiles);
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while (STAILQ_EMPTY(&renamedfiles.list)) {
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WAIT(renamedfiles);
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}
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file = STAILQ_FIRST(&renamedfiles.list);
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STAILQ_REMOVE_HEAD(&renamedfiles.list, next);
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nunlink++;
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UNLOCK(renamedfiles);
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free(file->name);
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free(file);
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if (arc4random() % 100 == 1)
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if (arc4random() % 100 == 1)
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if (arc4random() % 100 < 10)
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_exit(0);
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}
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return (NULL);
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}
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void
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test(void)
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{
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int i;
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int rc;
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pthread_t tid[3];
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asprintf(&dirname1, "%s.1", "f1");
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asprintf(&dirname2, "%s.2", "f2");
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// max = 15000000;
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max = 50000;
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STAILQ_INIT(&newfiles.list);
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STAILQ_INIT(&renamedfiles.list);
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if ((rc = pthread_mutex_init(&newfiles.mtx, NULL)) != 0)
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errc(1, rc, "pthread_mutex_init()");
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if ((rc = pthread_cond_init(&newfiles.wait, NULL)) != 0)
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errc(1, rc, "pthread_cond_init()");
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if ((rc = pthread_mutex_init(&renamedfiles.mtx, NULL)) != 0)
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errc(1, rc, "pthread_mutex_init()");
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if ((rc = pthread_cond_init(&renamedfiles.wait, NULL)) != 0)
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errc(1, rc, "pthread_cond_init()");
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signal(SIGINFO, hand);
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signal(SIGALRM, ahand);
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alarm(300);
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if ((rc = pthread_create(&tid[0], NULL, loop_create, NULL)) != 0)
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errc(1, rc, "pthread_create()");
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if ((rc = pthread_create(&tid[1], NULL, loop_rename, NULL)) != 0)
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errc(1, rc, "pthread_create()");
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if ((rc = pthread_create(&tid[2], NULL, loop_unlink, NULL)) != 0)
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errc(1, rc, "pthread_create()");
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for (i = 0; i < 3; i++) {
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if ((rc = pthread_join(tid[i], NULL)) != 0)
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errc(1, rc, "pthread_join(%d)", i);
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}
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if ((rc = pthread_mutex_destroy(&newfiles.mtx)) != 0)
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errc(1, rc, "pthread_mutex_destroy(newfiles)");
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if ((rc = pthread_cond_destroy(&newfiles.wait)) != 0)
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errc(1, rc, "pthread_cond_destroy(newfiles)");
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if ((rc = pthread_mutex_destroy(&renamedfiles.mtx)) != 0)
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errc(1, rc, "pthread_mutex_destroy(renamedfiles)");
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if ((rc = pthread_cond_destroy(&renamedfiles.wait)) != 0)
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errc(1, rc, "pthread_cond_destroy(renamedfiles)");
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free(dirname1);
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free(dirname2);
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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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alarm(1200);
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for (i = 0; i < 1000; i++) {
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if (fork() == 0)
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test();
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wait(NULL);
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}
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return (0);
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}
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