1#!/bin/sh 2 3# 4# Copyright (c) 2012 Peter Holm <pho@FreeBSD.org> 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# Test of access to /dev/sndstat 30 31# Permanent "/dev/sndstat: Device busy" seen. 32# "panic: sbuf_put_byte called with finished or corrupt sbuf" seen. 33# Fixed in r234932 34 35. ../default.cfg 36 37[ -r /dev/sndstat ] || exit 0 38 39here=`pwd` 40cd /tmp 41sed '1,/^EOF/d' < $here/$0 > sndstat.c 42mycc -o sndstat -Wall -Wextra sndstat.c -lpthread 43rm -f sndstat.c 44 45/tmp/sndstat > /dev/null 46 47rm -f /tmp/sndstat 48exit 0 49EOF 50#include <sys/types.h> 51#include <sys/syscall.h> 52#include <sys/uio.h> 53#include <dirent.h> 54#include <err.h> 55#include <fcntl.h> 56#include <pthread.h> 57#include <stdio.h> 58#include <stdlib.h> 59#include <strings.h> 60#include <sys/wait.h> 61#include <unistd.h> 62 63int fd; 64char path[] = "/dev/sndstat"; 65 66void * 67test1(void *arg __unused) 68{ 69 70 int sfd, i, n; 71 char buf[512]; 72 73 n = 0; 74 for (i = 0; i < 5; i++) { 75 if ((sfd = open(path, O_RDONLY)) == -1) 76 continue; 77 78 read(sfd, buf, sizeof(buf)); 79 fprintf(stdout, "%s\n", buf); 80 81 n++; 82 close(sfd); 83 } 84 if (n == 0) { 85 if ((sfd = open(path, O_RDONLY)) == -1) 86 warn("FAIL open(%s)", path); 87 if (sfd > 0) 88 close(sfd); 89 } 90 91 return (0); 92} 93 94void * 95test2(void *arg __unused) 96{ 97 char buf[512]; 98 99 bzero(buf, sizeof(buf)); 100 if (read(fd, buf, sizeof(buf)) != -1) 101 fprintf(stdout, "%s\n", buf); 102 else 103 warn("read()"); 104 105 return (0); 106} 107 108int 109main(void) 110{ 111 pthread_t rp[10]; 112 int e, i, j; 113 114 /* Parallel open test */ 115 for (i = 0; i < 10; i++) { 116 if ((e = pthread_create(&rp[i], NULL, test1, NULL)) != 0) 117 errc(1, e, "pthread_create"); 118 } 119 for (i = 0; i < 10; i++) 120 pthread_join(rp[i], NULL); 121 122 /* Parallel read test */ 123 for (i = 0; i < 10; i++) { 124 if ((fd = open(path, O_RDONLY)) == -1) { 125 warn("open()"); 126 continue; 127 } 128 for (j = 0; j < 4; j++) 129 if ((e = pthread_create(&rp[j], NULL, test2, NULL)) != 0) 130 errc(1, e, "pthread_create"); 131 for (j = 0; j < 4; j++) 132 pthread_join(rp[j], NULL); 133 134 close(fd); 135 } 136 137 return (0); 138} 139