Date: Tue, 24 Apr 2018 10:03:17 +0000 (UTC) From: Peter Holm <pho@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r332921 - user/pho/stress2/misc Message-ID: <201804241003.w3OA3HeZ016599@repo.freebsd.org>
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Author: pho Date: Tue Apr 24 10:03:16 2018 New Revision: 332921 URL: https://svnweb.freebsd.org/changeset/base/332921 Log: One more mkfifo(2) test. Sponsored by: Dell EMC Isilon Added: user/pho/stress2/misc/mkfifo4.sh (contents, props changed) Added: user/pho/stress2/misc/mkfifo4.sh ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ user/pho/stress2/misc/mkfifo4.sh Tue Apr 24 10:03:16 2018 (r332921) @@ -0,0 +1,188 @@ +#!/bin/sh + +# +# Copyright (c) 2015 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. +# +# $FreeBSD$ +# + +. ../default.cfg + +# "Assertion vap->va_type == VDIR failed" seen on non HEAD. + +dir=/tmp +odir=`pwd` +cd $dir +sed '1,/^EOF/d' < $odir/$0 > $dir/mkfifo4.c +mycc -o mkfifo4 -Wall -Wextra -O0 -g mkfifo4.c || exit 1 +rm -f mkfifo4.c +cd $odir + +fifo=/tmp/mkfifo4.fifo +trap "rm -f $fifo /tmp/mkfifo4" EXIT INT + +export runRUNTIME=5m +(cd ..; ./run.sh disk.cfg) > /dev/null 2>&1 & +sleep .2 + +while pgrep -fq run.sh; do + timeout 300 /tmp/mkfifo4 | grep -v Done + [ $? -eq 124 ] && + { echo "Timedout"; exit 1; } +done +wait + +exit $s +EOF +#include <sys/param.h> +#include <sys/stat.h> +#include <sys/wait.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <signal.h> +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> + +#define ATIME 1 +#define MXRETRY 100 +#define LOOPS 1000000 + +volatile int sigs; +char file[] = "/tmp/mkfifo4.fifo"; + +static void +hand(int i __unused) { /* handler */ + sigs++; +} + +int +main(void) +{ + pid_t pid, hpid; + struct sigaction sa; + int e, fd, fd2, i, status; + int failures, r, retries, w; + char c; + + sa.sa_handler = hand; + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + if (sigaction(SIGALRM, &sa, NULL) == -1) + err(1, "sigaction"); + + sa.sa_handler = SIG_IGN; + sigemptyset(&sa.sa_mask); + sa.sa_flags = 0; + if (sigaction(SIGPIPE, &sa, NULL) == -1) + err(1, "sigaction"); + + unlink(file); + if (mkfifo(file, 0640) == -1) + err(1, "mkfifo(%s)", file); + if ((hpid = fork()) == 0) { + if ((fd2 = open(file, O_WRONLY | O_APPEND)) == -1) + err(1, "hold open of fifo"); + for (;;) + pause(); + _exit(0); + } + + if ((pid = fork()) == 0) { + setproctitle("child"); + r = 0; + for (i = 0; i < LOOPS; i++) { + failures = 0; +restart: + do { + if ((fd = open(file, O_RDONLY | + O_NONBLOCK)) == -1) + if (errno != EINTR) /* on OS X */ + err(1, "open(%s, O_RDONLY)", + file); + } while (fd == -1); + retries = 0; + do { + if ((e = read(fd, &c, 1)) == -1) { + if (errno != EINTR && + errno != EAGAIN) + err(1, "read(%d, ...)", fd); + } else if (retries++ > MXRETRY) { + close(fd); + usleep(1000); + fprintf(stderr, + "Re-open for read @ %d\n", i); + if (failures++ > 100) + errx(1, + "FAIL: Failure to read"); + goto restart; + } + } while (e <= 0); + r++; + ualarm(ATIME, 0); + if (close(fd) == -1) + err(1, "close() in child"); + alarm(0); + } + fprintf(stdout, "Done child. %d reads, %d signals.\n", r, + sigs); + fflush(stdout); + _exit(0); + } + setproctitle("parent"); + w = 0; + for (i = 0; i < LOOPS; i++) { + do { + if ((fd = open(file, O_WRONLY | O_APPEND | + O_NONBLOCK)) == -1) + if (errno != EINTR && errno != ENXIO) + err(1, "open(%s, O_WRONLY)", file); + } while (fd == -1); + do { + if ((e = write(fd, "a", 1)) != 1) + if (errno != EPIPE && errno != EAGAIN) + err(1, "write(%d, ...)", fd); + } while (e == -1); + w++; + ualarm(ATIME, 0); + if (close(fd) == -1) + err(1, "close() in parent"); + alarm(0); + } + fprintf(stdout, "Done parent. %d writes, %d signals.\n", w, sigs); + + if (waitpid(pid, &status, 0) == -1) + err(1, "wait"); + if (kill(hpid, SIGHUP) == -1) + err(1, "kill %d", hpid); + if (waitpid(hpid, NULL, 0) == -1) + err(1, "wait"); + if (unlink(file) == -1) + err(1, "unlink(%s)", file); + + return (WEXITSTATUS(status)); +}
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