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 $mdstart 48bsdlabel -w md$mdstart auto 49newfs $newfs_flags md${mdstart}$part > /dev/null 50mount /dev/md${mdstart}$part $mntpoint 51set +e 52 53cd $mntpoint 54dd if=/dev/random of=input bs=4k count=1 status=none 55export MAXSWAPPCT=85 56(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -l 100 > /dev/null) & 57sleep 5 58$dir/sendfile16 59s=$? 60while pgrep -q swap; do 61 pkill swap 62done 63wait 64[ -f sendfile16.core -a $s -eq 0 ] && 65 { ls -l sendfile16.core; mv sendfile16.core $dir; s=1; } 66cd $odir 67 68for i in `jot 6`; do 69 mount | grep -q "on $mntpoint " || break 70 umount $mntpoint && break || sleep 10 71 [ $i -eq 6 ] && 72 { echo FATAL; fstat -mf $mntpoint; exit 1; } 73done 74mdconfig -d -u $mdstart 75rm -rf $dir/sendfile16 76exit $s 77 78EOF 79#include <sys/param.h> 80#include <sys/fcntl.h> 81#include <sys/mman.h> 82#include <sys/socket.h> 83#include <sys/stat.h> 84#include <sys/stat.h> 85#include <sys/uio.h> 86#include <sys/wait.h> 87 88#include <machine/atomic.h> 89 90#include <err.h> 91#include <errno.h> 92#include <fcntl.h> 93#include <stdio.h> 94#include <stdlib.h> 95#include <time.h> 96#include <unistd.h> 97 98static volatile u_int *share; 99 100#define PARALLEL 128 101#define RUNTIME (5 * 60) 102#define SYNC 0 103#define SYNC2 1 104#define TIMEOUT 180 105 106static void 107test(void) 108{ 109 struct stat st; 110 off_t written, pos; 111 const char *from_name; 112 int sv[2]; 113 int child, error, from, n, status; 114 char *buf; 115 116 alarm(TIMEOUT); 117 setproctitle("spinup"); 118 atomic_add_int(&share[SYNC], 1); 119 while (share[SYNC] != PARALLEL) 120 usleep(100); 121 alarm(0); 122 123 from_name = "input"; 124 125 if ((from = open(from_name, O_RDONLY)) == -1) 126 err(1, "open read %s", from_name); 127 128 if ((error = fstat(from, &st)) == -1) 129 err(1, "stat %s", from_name); 130 131 if ((error = socketpair(AF_UNIX, SOCK_STREAM, 0, sv)) == -1) 132 err(1, "socketpair"); 133 134 child = fork(); 135 if (child == -1) 136 err(1, "fork"); 137 else if (child != 0) { 138 setproctitle("parent"); 139 close(sv[1]); 140 pos = 0; 141 for (;;) { 142 error = sendfile(from, sv[0], pos, st.st_size - pos, 143 NULL, &written, 0); 144 if (error == -1) { 145 if (errno != EAGAIN) 146 err(1, "sendfile"); 147 } 148 pos += written; 149 if (pos == st.st_size) 150 break; 151 } 152 close(sv[0]); 153 if (waitpid(child, &status, 0) != child) 154 err(1, "waitpid(%d)", child); 155 } else { 156 setproctitle("child"); 157 close(sv[0]); 158 buf = malloc(st.st_size); 159 if (buf == NULL) 160 err(1, "malloc %jd", st.st_size); 161 pos = 0; 162 for (;;) { 163 written = st.st_size - pos; 164 n = read(sv[1], buf + pos, written); 165 if (n == -1) 166 err(1, "read"); 167 else if (n == 0) 168 errx(1, "Short read"); 169 pos += n; 170 if (pos == st.st_size) 171 break; 172 } 173 close(sv[1]); 174 _exit(0); 175 } 176 setproctitle("spindown"); 177 n = 0; 178 atomic_add_int(&share[SYNC2], 1); 179 alarm(TIMEOUT); 180 while (share[SYNC2] != PARALLEL) 181 usleep(100000); 182 183 _exit(0); 184} 185 186int 187main(void) 188{ 189 pid_t pids[PARALLEL]; 190 size_t len; 191 time_t start; 192 int e, i, status; 193 194 e = 0; 195 len = PAGE_SIZE; 196 if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE, 197 MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED) 198 err(1, "mmap"); 199 200 start = time(NULL); 201 while ((time(NULL) - start) < RUNTIME && e == 0) { 202 for (i = 0; i < PARALLEL; i++) { 203 if ((pids[i] = fork()) == 0) 204 test(); 205 if (pids[i] == -1) 206 err(1, "fork()"); 207 } 208 for (i = 0; i < PARALLEL; i++) { 209 if (waitpid(pids[i], &status, 0) == -1) 210 err(1, "waitpid(%d)", pids[i]); 211 if (status != 0) { 212 if (WIFSIGNALED(status)) 213 fprintf(stderr, 214 "pid %d exit signal %d\n", 215 pids[i], WTERMSIG(status)); 216 } 217 e += status == 0 ? 0 : 1; 218 } 219 share[SYNC] = 0; 220 share[SYNC2] = 0; 221 } 222 223 return (e); 224} 225