1#!/bin/sh 2 3# 4# Copyright (c) 2018 Dell EMC Isilon 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 unmodified, this list of conditions and the following 12# disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# sendfile() test. 31# Copy of sendfile15.sh 32 33. ../default.cfg 34[ `id -u` -ne 0 ] && echo "Must be root!" && exit 1 35 36dir=/tmp 37odir=`pwd` 38cd $dir 39sed '1,/^EOF/d' < $odir/$0 > $dir/sendfile16.c 40mycc -o sendfile16 -Wall -Wextra -O0 -g sendfile16.c || exit 1 41rm -f sendfile16.c 42cd $odir 43 44set -e 45mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint 46[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart 47mdconfig -a -t swap -s 2g -u $mdstart 48newfs $newfs_flags md$mdstart > /dev/null 49mount /dev/md$mdstart $mntpoint 50set +e 51 52cd $mntpoint 53dd if=/dev/random of=input bs=4k count=1 status=none 54export MAXSWAPPCT=85 55(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null) & 56sleep 5 57$dir/sendfile16 58s=$? 59while pgrep -q swap; do 60 pkill swap 61done 62wait 63[ -f sendfile16.core -a $s -eq 0 ] && 64 { ls -l sendfile16.core; mv sendfile16.core $dir; s=1; } 65cd $odir 66 67for i in `jot 6`; do 68 mount | grep -q "on $mntpoint " || break 69 umount $mntpoint && break || sleep 10 70 [ $i -eq 6 ] && 71 { echo FATAL; fstat -mf $mntpoint; exit 1; } 72done 73mdconfig -d -u $mdstart 74rm -rf $dir/sendfile16 75exit $s 76 77EOF 78#include <sys/param.h> 79#include <sys/fcntl.h> 80#include <sys/mman.h> 81#include <sys/socket.h> 82#include <sys/stat.h> 83#include <sys/stat.h> 84#include <sys/uio.h> 85#include <sys/wait.h> 86 87#include <machine/atomic.h> 88 89#include <err.h> 90#include <errno.h> 91#include <fcntl.h> 92#include <stdio.h> 93#include <stdlib.h> 94#include <time.h> 95#include <unistd.h> 96 97static volatile u_int *share; 98 99#define PARALLEL 128 100#define RUNTIME (5 * 60) 101#define SYNC 0 102#define SYNC2 1 103#define TIMEOUT 180 104 105static void 106test(void) 107{ 108 struct stat st; 109 off_t written, pos; 110 const char *from_name; 111 int sv[2]; 112 int child, error, from, n, status; 113 char *buf; 114 115 alarm(TIMEOUT); 116 setproctitle("spinup"); 117 atomic_add_int(&share[SYNC], 1); 118 while (share[SYNC] != PARALLEL) 119 usleep(100); 120 alarm(0); 121 122 from_name = "input"; 123 124 if ((from = open(from_name, O_RDONLY)) == -1) 125 err(1, "open read %s", from_name); 126 127 if ((error = fstat(from, &st)) == -1) 128 err(1, "stat %s", from_name); 129 130 if ((error = socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) == -1) 131 err(1, "socketpair"); 132 133 child = fork(); 134 if (child == -1) 135 err(1, "fork"); 136 else if (child != 0) { 137 setproctitle("parent"); 138 close(sv[1]); 139 pos = 0; 140 for (;;) { 141 error = sendfile(from, sv[0], pos, st.st_size - pos, 142 NULL, &written, 0); 143 if (error == -1) { 144 if (errno != EAGAIN) 145 err(1, "sendfile"); 146 } 147 pos += written; 148 if (pos == st.st_size) 149 break; 150 } 151 close(sv[0]); 152 if (waitpid(child, &status, 0) != child) 153 err(1, "waitpid(%d)", child); 154 } else { 155 setproctitle("child"); 156 close(sv[0]); 157 buf = malloc(st.st_size); 158 if (buf == NULL) 159 err(1, "malloc %jd", st.st_size); 160 pos = 0; 161 for (;;) { 162 written = st.st_size - pos; 163 n = read(sv[1], buf + pos, written); 164 if (n == -1) 165 err(1, "read"); 166 else if (n == 0) 167 errx(1, "Short read"); 168 pos += n; 169 if (pos == st.st_size) 170 break; 171 } 172 close(sv[1]); 173 _exit(0); 174 } 175 setproctitle("spindown"); 176 n = 0; 177 atomic_add_int(&share[SYNC2], 1); 178 alarm(TIMEOUT); 179 while (share[SYNC2] != PARALLEL) 180 usleep(100000); 181 182 _exit(0); 183} 184 185int 186main(void) 187{ 188 pid_t pids[PARALLEL]; 189 size_t len; 190 time_t start; 191 int e, i, status; 192 193 e = 0; 194 len = PAGE_SIZE; 195 if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 196 MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 197 err(1, "mmap"); 198 199 start = time(NULL); 200 while ((time(NULL) - start) < RUNTIME && e == 0) { 201 for (i = 0; i < PARALLEL; i++) { 202 if ((pids[i] = fork()) == 0) 203 test(); 204 if (pids[i] == -1) 205 err(1, "fork()"); 206 } 207 for (i = 0; i < PARALLEL; i++) { 208 if (waitpid(pids[i], &status, 0) == -1) 209 err(1, "waitpid(%d)", pids[i]); 210 if (status != 0) { 211 if (WIFSIGNALED(status)) 212 fprintf(stderr, 213 "pid %d exit signal %d\n", 214 pids[i], WTERMSIG(status)); 215 } 216 e += status == 0 ? 0 : 1; 217 } 218 share[SYNC] = 0; 219 share[SYNC2] = 0; 220 } 221 222 return (e); 223} 224