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#!/bin/bash
#
# Copyright (C) 2021 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="${0%/*}/../.."
TS_DESC="block device with O_RDONLY"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_skip_nonroot
ts_skip_docker
# losetup cannot find an unused loop device.
ts_skip_qemu_user
. "$TS_SELF"/lsfd-functions.bash
ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_CMD_LOSETUP"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_cd "$TS_OUTDIR"
ts_device_init
LSFD_LOOP_BDEV=$TS_LODEV
LSFD_LOOP_BDEV_BASENAME=${LSFD_LOOP_BDEV##*/}
LSFD_LOOP_BDEV_NUM=${LSFD_LOOP_BDEV_BASENAME#loop}
PID=
FD=3
EXPR=
{
coproc MKFDS { "$TS_HELPER_MKFDS" ro-block-device $FD blkdev=${LSFD_LOOP_BDEV}; }
if read -u ${MKFDS[0]} PID; then
EXPR='(PID == '"${PID}"') and (FD == '"$FD"')'
${TS_CMD_LSFD} -n -o ASSOC,MODE,TYPE,POS,BLKDRV,DEVTYPE -Q "${EXPR}"
echo 'ASSOC,MODE,TYPE,,POS,,BLKDRV,DEVTYPE': $?
LSFD_NAME=$(${TS_CMD_LSFD} --raw -n -o NAME -Q "${EXPR}")
echo 'NAME[RUN]:' $?
[ "${LSFD_NAME}" == "${LSFD_LOOP_BDEV}" ]
echo 'NAME[STR]:' $?
LSFD_SOURCE=$(${TS_CMD_LSFD} --raw -n -o SOURCE -Q "${EXPR}")
echo 'SOURCE[RUN]:' $?
[ "${LSFD_SOURCE}" == "${LSFD_LOOP_BDEV_BASENAME}" ]
echo 'SOURCE[STR]:' $?
LSFD_MAJ_MIN=$(${TS_CMD_LSFD} --raw -n -o MAJ:MIN -Q "${EXPR}")
echo 'MAJ_MIN[RUN]:' $?
[ "${LSFD_MAJ_MIN}" == 7:"${LSFD_LOOP_BDEV_NUM}" ]
echo 'MAJ_MIN[STR]:' $?
LSFD_RDEV=$(${TS_CMD_LSFD} --raw -n -o RDEV -Q "${EXPR}")
echo 'RDEV[RUN]:' $?
[ "${LSFD_RDEV}" == 7:"${LSFD_LOOP_BDEV_NUM}" ]
echo 'RDEV[STR]:' $?
lsfd_compare_dev "${TS_CMD_LSFD}" "${LSFD_LOOP_BDEV}" "${EXPR}"
echo DONE >&"${MKFDS[1]}"
fi
wait ${MKFDS_PID}
} > $TS_OUTPUT 2>&1
ts_finalize
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