74 lines
1.9 KiB
Bash
Executable file
74 lines
1.9 KiB
Bash
Executable file
#!/bin/bash
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#
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# Copyright (C) 2024 Masatake YAMATO <yamato@redhat.com>
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#
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# This file is part of util-linux.
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#
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# This file is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This file is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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TS_TOPDIR="${0%/*}/../.."
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TS_DESC="SOURCE column for fd opening a file on btrfs"
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. "$TS_TOPDIR"/functions.sh
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ts_init "$*"
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ts_skip_nonroot
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ts_check_test_command "$TS_CMD_LSFD"
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ts_check_prog "stat"
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ts_check_prog "sed"
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ts_check_prog "mkfs.btrfs"
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ts_check_prog "dd"
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ts_cd "$TS_OUTDIR"
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PID=
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FD=3
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IMG=img-column-source-btrfs.btrfs
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MNTPNT=mntpnt-column-source-btrfs
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FILE=${MNTPNT}/afile
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mkdir -p $MNTPNT
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dd if=/dev/zero of=$IMG bs=114294784 count=1 status=none
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if ! mkfs.btrfs -q $IMG; then
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ts_skip "failed to make a btrfs image: $IMG"
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fi
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if ! mount $IMG $MNTPNT; then
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ts_skip "failed to mount a btrfs image, $IMG to $MNTPNT"
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fi
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trap "umount $MNTPNT; rm -f $IMG" EXIT
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if ! touch $FILE; then
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ts_skip "failed to touch a file on a btrfs filesystem: $FILE"
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fi
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# The major number may be 0. So we can assume the device number is the
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# same as that of minor number.
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EXPECTED="btrfs:$(stat -c %d $FILE)"
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{
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coproc MKFDS { "$TS_HELPER_MKFDS" ro-regular-file $FD file=$FILE; }
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if read -u ${MKFDS[0]} PID; then
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EXPR='(PID == '"${PID}"') and (FD == '"$FD"')'
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SOURCE=$(${TS_CMD_LSFD} -n --raw -o SOURCE -Q "${EXPR}")
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echo "SOURCE": $?
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if [[ "$SOURCE" == "$EXPECTED" ]]; then
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echo "SOURCE == EXPECTED"
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else
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echo "SOURCE: $SOURCE"
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echo "EXPECTED: $EXPECTED"
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fi
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echo DONE >&"${MKFDS[1]}"
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fi
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wait "${MKFDS_PID}"
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} > "$TS_OUTPUT" 2>&1
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ts_finalize
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