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#!/bin/sh
# Ensure that md5sum prints each checksum atomically
# so that concurrent md5sums don't intersperse their output
# Copyright (C) 2009-2010 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
. "${srcdir=.}/init.sh"; path_prepend_ ../src
test "$VERBOSE" = yes && md5sum --version
(mkdir tmp && cd tmp && seq 500 | xargs touch)
# This will output at least 16KiB per process
# and start 3 processes, with 2 running concurrently,
# which triggers often on Fedora 11 at least.
(find tmp tmp tmp -type f | xargs -n500 -P2 md5sum) |
sed -n '/[0-9a-f]\{32\} /!p' |
grep . > /dev/null && fail=1
Exit $fail
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