1#!/bin/sh
2
3#-
4# Copyright (c) 2011 Jilles Tjoelker
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: "${SED=sed}"
30
31# This test really needs an SMP system. On an UP system, it will
32# usually pass even if the race condition exists.
33if command -v cpuset >/dev/null; then
34	case `cpuset -g -p $$` in
35	*,*) ;;
36	*)
37		echo '1..0 # Skipped: not an SMP system'
38		exit 0 ;;
39	esac
40fi
41
42echo "1..1"
43
44data=abababab
45data=$data$data$data$data
46data=$data$data$data$data
47data=$data$data$data$data
48data=$data$data$data$data
49data="BEGIN
50$data
51END"
52for i in 0 1 2 3 4 5 6 7 8 9; do
53	echo "$data" >file$i
54done
55len=${#data}
56
57i=0
58while [ $i -lt 100 ]; do
59	${SED} -i.prev "s/$i/ab/" file[0-9]
60	i=$((i+1))
61done &
62sedproc=$!
63
64while :; do
65	set -- file[0-9]
66	if [ $# -ne 10 ]; then
67		echo "not ok 1 inplace_race"
68		exit 3
69	fi
70done &
71checkproc=$!
72
73wait $sedproc
74kill $checkproc 2>/dev/null
75wait $checkproc >/dev/null 2>&1
76if [ $? -ne 3 ]; then
77	echo "ok 1 inplace_race"
78fi
79