Date: Mon, 2 Mar 2015 15:03:08 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r279523 - user/pho/stress2/misc Message-ID: <201503021503.t22F38SZ007860@svn.freebsd.org>
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Author: pho Date: Mon Mar 2 15:03:08 2015 New Revision: 279523 URL: https://svnweb.freebsd.org/changeset/base/279523 Log: One more fts(3) test. Sponsored by: EMC / Isilon storage division Added: user/pho/stress2/misc/fifo3.sh (contents, props changed) Added: user/pho/stress2/misc/fifo3.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/fifo3.sh Mon Mar 2 15:03:08 2015 (r279523) @@ -0,0 +1,211 @@ +#!/bin/sh + +# +# Copyright (c) 2014 EMC Corp. +# All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# $FreeBSD$ +# + +# Demonstrate that fts_read(3) will open a fifo for read. +# Not seen on a pristine FreeBSD. + +# $ while ./fifo.sh; do date; done +# Wed Oct 1 14:07:41 CEST 2014 +# Wed Oct 1 14:09:58 CEST 2014 +# FAIL +# $ ps -l19547 +# UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND +# 0 19547 19544 0 25 0 12176 3996 fifoor I 0 0:08.19 /tmp/fifo +# $ gdb /tmp/fifo 19547 +# GNU gdb 6.1.1 [FreeBSD] +# Copyright 2004 Free Software Foundation, Inc. +# GDB is free software, covered by the GNU General Public License, and you are +# welcome to change it and/or distribute copies of it under certain conditions. +# Type "show copying" to see the conditions. +# There is absolutely no warranty for GDB. Type "show warranty" for details. +# This GDB was configured as "amd64-marcel-freebsd"... +# Attaching to program: /tmp/fifo, process 19547 +# Reading symbols from /lib/libc.so.7...done. +# Loaded symbols for /lib/libc.so.7 +# Reading symbols from /libexec/ld-elf.so.1...done. +# Loaded symbols for /libexec/ld-elf.so.1 +# 0x00000008008a9ab8 in enc_openat () from /lib/libc.so.7 +# (gdb) bt +# #0 0x00000008008a9ab8 in enc_openat () from /lib/libc.so.7 +# #1 0x00000008008a581b in fts_read () from /lib/libc.so.7 +# #2 0x00000008008a4f24 in fts_read () from /lib/libc.so.7 +# #3 0x0000000000400ee9 in test () at /tmp/fifo.c:86 +# #4 0x0000000000400fd8 in main () at /tmp/fifo.c:108 +# (gdb) f 3 +# #3 0x0000000000400ee9 in test () at /tmp/fifo.c:86 +# 86 while ((p = fts_read(fts)) != NULL) { +# Current language: auto; currently minimal +# (gdb) +# + +. ../default.cfg + +cat > /tmp/fifo3.c <<EOF +#include <sys/types.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fts.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define LOOPS 50 +#define PARALLEL 4 + +void +tmkfifo(void) +{ + pid_t pid; + int i, j; + char name[80]; + + setproctitle(__func__); + pid = getpid(); + for (j = 0; j < LOOPS; j++) { + for (i = 0; i < 1000; i++) { + snprintf(name, sizeof(name), "fifo.%d.%06d", pid, i); + if (mkfifo(name, 0644) == -1) + err(1, "mkfifo(%s)", name); + } + for (i = 0; i < 1000; i++) { + snprintf(name, sizeof(name), "fifo.%d.%06d", pid, i); + if (unlink(name) == -1) + err(1, "unlink(%s)", name); + } + } + _exit(0); +} + +void +tmkdir(void) +{ + pid_t pid; + int i, j; + char name[80]; + + setproctitle(__func__); + pid = getpid(); + for (j = 0; j < LOOPS; j++) { + for (i = 0; i < 1000; i++) { + snprintf(name, sizeof(name), "dir.%d.%06d", pid, i); + if (mkdir(name, 0644) == -1) + err(1, "mkfifo(%s)", name); + } + for (i = 0; i < 1000; i++) { + snprintf(name, sizeof(name), "dir.%d.%06d", pid, i); + if (rmdir(name) == -1) + err(1, "unlink(%s)", name); + } + } + _exit(0); +} + + +void +test(void) +{ + FTS *fts; + FTSENT *p; + int ftsoptions, i; + char *args[2]; + + if (fork() == 0) + tmkfifo(); + if (fork() == 0) + tmkdir(); + + ftsoptions = 0; + args[0] = "."; + args[1] = 0; + + for (i = 0; i < LOOPS; i++) { + if ((fts = fts_open(args, ftsoptions, NULL)) == NULL) + err(1, "fts_open"); + + while ((p = fts_read(fts)) != NULL) { +#if defined(TEST) + fprintf(stdout, "%s\n", p->fts_path); +#endif + } + + if (errno != 0 && errno != ENOENT) + err(1, "fts_read"); + if (fts_close(fts) == -1) + err(1, "fts_close()"); + } + wait(NULL); + wait(NULL); + + _exit(0); +} + +int +main(void) +{ + int i; + + for (i = 0; i < PARALLEL; i++) + if (fork() == 0) + test(); + for (i = 0; i < PARALLEL; i++) + wait(NULL); + + return (0); +} +EOF +mycc -o /tmp/fifo3 -Wall -Wextra -O0 -g /tmp/fifo3.c || exit 1 + +mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint +[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart + +mdconfig -a -t swap -s 1g -u $mdstart || exit 1 +bsdlabel -w md$mdstart auto +newfs md${mdstart}$part > /dev/null +mount /dev/md${mdstart}$part $mntpoint + +(cd $mntpoint; /tmp/fifo3 ) & + +while pgrep -q fifo3; do + ps -l | grep -v grep | grep -q fifoor && + { echo FAIL; exit 1; } + sleep 2 +done + +wait + +while mount | grep $mntpoint | grep -q /dev/md; do + umount $mntpoint || sleep 1 +done +mdconfig -d -u $mdstart +rm /tmp/fifo3 /tmp/fifo3.c
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