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lvm2/test/lib/utils.sh
Zdenek Kabelac a59c3731c3 Improve test suite
Add make help target.
Add LVM_TEST_PARALLEL to support parallel runs of tests
Work around the problem the dmsetup table/info may return error
by using dmtable and dminfo function that will use 'should'.
(Error happens when some concurently running process removes table
entry while dmsetup command resolves table entries inside the loop.)
2012-03-28 11:10:08 +00:00

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5.4 KiB
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#!/bin/bash
# Copyright (C) 2011-2012 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
set -e
MAX_TRIES=4
IFS_NL='
'
die() {
echo "$@" >&2
return 1
}
rand_bytes() {
n=$1
chars="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
dev_rand="/dev/urandom"
if test -r "$dev_rand"; then
# Note: 256-length($chars) == 194; 3 copies of $chars is 186 + 8 = 194.
head -c"$n" "$dev_rand" | tr -c "$chars" "01234567$chars$chars$chars"
return
fi
cmds='date; date +%N; free; who -a; w; ps auxww; ps ef; netstat -n'
data=$( (eval "$cmds") 2>&1 | gzip )
n_plus_50=$(expr $n + 50)
# Ensure that $data has length at least 50+$n
while :; do
len=$(echo "$data" | wc -c)
test $n_plus_50 -le $len && break;
data=$( (echo "$data"; eval "$cmds") 2>&1 | gzip )
done
echo "$data" | dd bs=1 skip=50 count=$n 2>/dev/null \
| tr -c "$chars" "01234567$chars$chars$chars"
}
mkdtemp() {
case $# in
2) ;;
*) die "Usage: mkdtemp DIR TEMPLATE";;
esac
destdir=$1
template=$2
case "$template" in
*XXXX) ;;
*) die "Invalid template: $template (must have a suffix of at least 4 X's)";;
esac
fail=0
# First, try to use mktemp.
d=$(env -u TMPDIR mktemp -d -t -p "$destdir" "$template" 2>/dev/null) || fail=1
# The resulting name must be in the specified directory.
case "$d" in "${destdir}"*);; *) fail=1;; esac
# It must have created the directory.
test -d "$d" || fail=1
# It must have 0700 permissions.
perms=$(ls -dgo "$d" 2>/dev/null) || fail=1
case "$perms" in drwx------*) ;; *) fail=1;; esac
test $fail = 0 && { echo "$d"; return; }
# If we reach this point, we'll have to create a directory manually.
# Get a copy of the template without its suffix of X's.
base_template=$(echo "$template" | sed 's/XX*$//')
# Calculate how many X's we've just removed.
nx=$(expr length "$template" - length "$base_template")
err=
i=1
while :; do
X=$(rand_bytes "$nx")
candidate_dir="$destdir/$base_template$X"
err=$(mkdir -m 0700 "$candidate_dir" 2>&1) && \
{ echo "$candidate_dir"; return; }
test $MAX_TRIES -le $i && break;
i=$(expr $i + 1)
done
die "$err"
}
STACKTRACE() {
trap - ERR
local i=0
echo "## - $0:${BASH_LINENO[0]}"
while FUNC=${FUNCNAME[$i]}; test "$FUNC" != "main"; do
echo "## $i ${FUNC}() called from ${BASH_SOURCE[$i]}:${BASH_LINENO[$i]}"
i=$(($i + 1))
done
test ${LVM_TEST_PARALLEL:-0} -eq 1 -o -n "$RUNNING_DMEVENTD" -o -f LOCAL_DMEVENTD || {
pgrep dmeventd &>/dev/null && \
die "** During test dmeventd has been started!"
}
# Get backtraces from coredumps
if which gdb &>/dev/null; then
echo bt full > gdb_commands.txt
echo l >> gdb_commands.txt
echo quit >> gdb_commands.txt
for core in $(ls core* 2>/dev/null); do
bin=$(gdb -batch -c "$core" 2>&1 | grep "generated by" | \
sed -e "s,.*generated by \`\([^ ']*\).*,\1,")
gdb -batch -c "$core" -x gdb_commands.txt $(which "$bin")
done
fi
test -z "$LVM_TEST_NODEBUG" -a -f debug.log && {
sed -e "s,^,## DEBUG: ,;s,$top_srcdir/\?,," < debug.log
}
test -f SKIP_THIS_TEST && exit 200
}
init_udev_transaction() {
if test "$DM_UDEV_SYNCHRONISATION" = 1; then
local cookie=$(dmsetup udevcreatecookie)
# Cookie is not generated if udev is not running!
test -z "$cookie" || export DM_UDEV_COOKIE=$cookie
fi
}
finish_udev_transaction() {
if test "$DM_UDEV_SYNCHRONISATION" = 1 -a -n "$DM_UDEV_COOKIE"; then
dmsetup udevreleasecookie
unset DM_UDEV_COOKIE
fi
}
teardown_udev_cookies() {
if test "$DM_UDEV_SYNCHRONISATION" = 1; then
# Delete any cookies created more than 10 minutes ago
# and not used in the last 10 minutes.
# Log only non-zero semaphores count
(dmsetup udevcomplete_all -y 10 | grep -v "^0 ") || true
fi
}
dm_info() {
should dmsetup info --noheadings -c -o "$@"
}
dm_table() {
should dmsetup table "$@"
}
skip() {
touch SKIP_THIS_TEST
exit 200
}
kernel_at_least() {
local major=$(uname -r | cut -d. -f1)
local minor=$(uname -r | cut -d. -f2 | cut -d- -f1)
test "$major" -gt "$1" && return 0
test "$major" -eq "$1" || return 1
test "$minor" -gt "$2" && return 0
test "$minor" -eq "$2" || return 1
test -z "$3" && return 0
local minor2=$(uname -r | cut -d. -f3 | cut -d- -f1)
test -z "$minor2" -a "$3" -ne 0 && return 1
test "$minor2" -ge "$3" 2>/dev/null || return 1
}
prepare_test_vars() {
vg="${PREFIX}vg"
lv=LV
for i in $(seq 1 16); do
name="${PREFIX}pv$i"
dev="$DM_DEV_DIR/mapper/$name"
eval "dev$i=\"$dev\""
eval "lv$i=LV$i"
eval "vg$i=${PREFIX}vg$i"
done
}
# check if $abs_top_builddir was already set via 'lib/paths'
test -n "${abs_top_builddir+varset}" || . lib/paths || die "you must run make first"
case "$PATH" in
*"$abs_top_builddir/test/lib"*) ;;
*)
PATH="$abs_top_builddir/test/lib":$PATH
for d in daemons/dmeventd/plugins/mirror daemons/dmeventd/plugins/snapshot \
daemons/dmeventd/plugins/lvm2 daemons/dmeventd liblvm tools libdm; do
LD_LIBRARY_PATH="$abs_top_builddir/$d":$LD_LIBRARY_PATH
done
export PATH LD_LIBRARY_PATH ;;
esac
test -z "$PREFIX" || prepare_test_vars