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|
#!/bin/bash
#
# Copyright (C) 2023 Masatake YAMATO <yamato@redhat.com>
#
# This file is part of util-linux.
#
# This file 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 2 of the License, or
# (at your option) any later version.
#
# This file 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.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="flock"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_check_test_command "$TS_CMD_LSLOCKS"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_check_prog "sed"
ts_cd "$TS_OUTDIR"
FILE0=util-linux-lslocks-target-file
FILE=${FILE0}--$$
FD=17
DFD=18
COLS=COMMAND,TYPE,SIZE,MODE,START,END
OPTS="--raw --noheadings"
METHODS=(
flock-sh
flock-ex
posix-r-
posix--w
posix-rw
ofd-r-
ofd--w
ofd-rw
lease-w
)
OFD_METHODS=(
flock-sh
flock-ex
ofd-r-
ofd--w
ofd-rw
lease-w
)
SLEEP()
{
# It appears that there is a time lag between locking and its
# visibility in /proc/locks. See the unstbale results of errors I
# observed in https://github.com/util-linux/util-linux/pull/2629.
sleep 1
}
DFD=18
COLS_WITH_HOLDERS=COMMAND,TYPE,SIZE,MODE,START,END,HOLDERS
run_lslocks()
{
local m=$1
{
rm -f "${FILE}"
coproc MKFDS { "$TS_HELPER_MKFDS" make-regular-file $FD file="$FILE" lock=$m; }
if read -r -u "${MKFDS[0]}" PID; then
SLEEP
"$TS_CMD_LSLOCKS" ${OPTS} --pid "${PID}" -o "${COLS}"
echo "# $m + ${COLS} + ${OPTS}": $?
"$TS_CMD_LSLOCKS" ${OPTS} --pid "${PID}" -o PATH | sed -e 's#.*\('"$FILE0"'\)--[0-9]\+ *$#\1#'
echo "# $m + PATH + ${OPTS}": ${PIPESTATUS[0]}
echo DONE >&"${MKFDS[1]}"
fi
} > "$TS_OUTPUT" 2>&1
wait "${MKFDS_PID}"
}
run_lslocks_with_co_holders()
{
local m=$1
{
rm -f "${FILE}"
coproc MKFDS { "$TS_HELPER_MKFDS" make-regular-file $FD file="$FILE" lock=$m dupfd=$DFD; }
SLEEP
if read -r -u "${MKFDS[0]}" PID; then
"$TS_CMD_LSLOCKS" ${OPTS} --pid "${PID}" -o "${COLS_WITH_HOLDERS}" | sed -e "s/${PID},/1,/g"
echo "# $m + ${COLS_WITH_HOLDERS} + ${OPTS}": ${PIPESTATUS[0]}
echo DONE >&"${MKFDS[1]}"
fi
} > "$TS_OUTPUT" 2>&1
wait "${MKFDS_PID}"
}
for m in "${METHODS[@]}"; do
ts_init_subtest "$m"
run_lslocks "$m"
ts_finalize_subtest
done
for m in "${OFD_METHODS[@]}"; do
ts_init_subtest "$m+HOLDERS"
run_lslocks_with_co_holders "$m"
ts_finalize_subtest
done
ts_finalize
|
