tests: add flock tests
Signed-off-by: Karel Zak <kzak@redhat.com>
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@ -48,6 +48,7 @@ TS_CMD_COLUMN=${TS_CMD_COLUMN:-"$top_builddir/column"}
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TS_CMD_EJECT=${TS_CMD_EJECT-"$top_builddir/eject"}
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TS_CMD_EJECT=${TS_CMD_EJECT-"$top_builddir/eject"}
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TS_CMD_FALLOCATE=${TS_CMD_FALLOCATE-"$top_builddir/fallocate"}
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TS_CMD_FALLOCATE=${TS_CMD_FALLOCATE-"$top_builddir/fallocate"}
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TS_CMD_FDISK=${TS_CMD_FDISK-"$top_builddir/fdisk"}
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TS_CMD_FDISK=${TS_CMD_FDISK-"$top_builddir/fdisk"}
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TS_CMD_FLOCK=${TS_CMD_FLOCK-"$top_builddir/flock"}
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TS_CMD_SFDISK=${TS_CMD_SFDISK-"$top_builddir/sfdisk"}
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TS_CMD_SFDISK=${TS_CMD_SFDISK-"$top_builddir/sfdisk"}
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TS_CMD_FINDMNT=${TS_CMD_FINDMNT-"$top_builddir/findmnt"}
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TS_CMD_FINDMNT=${TS_CMD_FINDMNT-"$top_builddir/findmnt"}
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TS_CMD_FSCKCRAMFS=${TS_CMD_FSCKCRAMFS:-"$top_builddir/fsck.cramfs"}
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TS_CMD_FSCKCRAMFS=${TS_CMD_FSCKCRAMFS:-"$top_builddir/fsck.cramfs"}
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@ -0,0 +1,3 @@
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Locking
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Unlocking
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Unlocked
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@ -0,0 +1 @@
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Success
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Success
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@ -0,0 +1 @@
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Success
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@ -0,0 +1,2 @@
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Have shared lock
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Success
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success
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@ -0,0 +1,2 @@
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After timeout.
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Success
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@ -0,0 +1,95 @@
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#!/bin/bash
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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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TS_TOPDIR="${0%/*}/../.."
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TS_DESC="flock"
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. $TS_TOPDIR/functions.sh
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ts_init "$*"
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ts_check_test_command "$TS_CMD_FLOCK"
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function do_lock {
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local opts="$1"
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local expected_rc="$2"
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local mesg="$3"
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$TS_CMD_FLOCK $1 $TS_OUTDIR/lockfile \
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echo "$mesg" \
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> $TS_OUTPUT 2>&1
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local rc="$?"
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if [ "$rc" == "$expected_rc" ]; then
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ts_log "Success"
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else
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ts_log "Failed [rc=$rc]"
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fi
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}
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# general lock
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GEN_OUTPUT="$TS_OUTPUT"
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START=$(date '+%s')
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$TS_CMD_FLOCK --shared $TS_OUTDIR/lockfile \
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bash -c 'echo "Locking"; sleep 3; echo "Unlocking"' \
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> $GEN_OUTPUT 2>&1 &
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ts_init_subtest "non-block"
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do_lock "--nonblock --conflict-exit-code 123" 123 "You will never see this!"
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ts_finalize_subtest
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ts_init_subtest "no-fork"
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do_lock "--no-fork --nonblock --conflict-exit-code 123" 123 "You will never see this!"
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ts_finalize_subtest
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ts_init_subtest "shared"
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do_lock "--shared" 0 "Have shared lock"
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ts_finalize_subtest
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# this is the same as non-block test (exclusive lock is the default), but here
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# we explicitly specify --exclusive on command line
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ts_init_subtest "exclusive"
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do_lock "--nonblock --exclusive --conflict-exit-code 123" 123 "You will never see this!"
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ts_finalize_subtest
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ts_init_subtest "timeout"
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do_lock "--timeout 5 --conflict-exit-code 5" 0 "After timeout."
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END=$(date '+%s')
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ts_finalize_subtest
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# expected is 3 seconds (see "sleep 3" for the general lock), but we should not
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# rely on exact number due to scheduler, machine load, etc. Let's check for
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# inmterval <3,5>.
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#
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ts_init_subtest "time-check"
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TIMEDIFF=$(( $END - $START ))
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if [ $TIMEDIFF -lt 3 ]; then
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ts_log "general lock failed [$TIMEDIFF sec]"
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elif [ $TIMEDIFF -gt 5 ]; then
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ts_log "wait too long [$TIMEDIFF sec]"
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else
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ts_log "success"
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fi
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ts_finalize_subtest "diff ${TIMEDIFF} sec"
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echo "Unlocked" >> $GEN_OUTPUT
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ts_finalize
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