qcow2: Limit snapshot table size

[mirror_qemu.git] / tests / qemu-iotests / common

#!/bin/bash
#
# Copyright (C) 2009 Red Hat, Inc.
# Copyright (c) 2000-2005 Silicon Graphics, Inc.  All Rights Reserved.
#
# This program 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.
#
# This program is distributed in the hope that it would 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.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
#
# common procedures for QA scripts
#

_setenvironment()
{
    MSGVERB="text:action"
    export MSGVERB
}

here=`pwd`
rm -f $here/$iam.out
_setenvironment

check=${check-true}

diff="diff -u"
verbose=false
group=false
xgroup=false
imgopts=false
showme=false
sortme=false
expunge=true
have_test_arg=false
randomize=false
valgrind=false
cachemode=false
rm -f $tmp.list $tmp.tmp $tmp.sed

export IMGFMT=raw
export IMGFMT_GENERIC=true
export IMGPROTO=file
export IMGOPTS=""
export CACHEMODE="writeback"
export QEMU_IO_OPTIONS=""
export CACHEMODE_IS_DEFAULT=true

for r
do

    if $group
    then
        # arg after -g
        group_list=`sed -n <group -e 's/$/ /' -e "/^[0-9][0-9][0-9].* $r /"'{
s/ .*//p
}'`
        if [ -z "$group_list" ]
        then
            echo "Group \"$r\" is empty or not defined?"
            exit 1
        fi
        [ ! -s $tmp.list ] && touch $tmp.list
        for t in $group_list
        do
            if grep -s "^$t\$" $tmp.list >/dev/null
            then
                :
            else
                echo "$t" >>$tmp.list
            fi
        done
        group=false
        continue

    elif $xgroup
    then
        # arg after -x
        [ ! -s $tmp.list ] && ls [0-9][0-9][0-9] [0-9][0-9][0-9][0-9] >$tmp.list 2>/dev/null
        group_list=`sed -n <group -e 's/$/ /' -e "/^[0-9][0-9][0-9].* $r /"'{
s/ .*//p
}'`
        if [ -z "$group_list" ]
        then
            echo "Group \"$r\" is empty or not defined?"
            exit 1
        fi
        numsed=0
        rm -f $tmp.sed
        for t in $group_list
        do
            if [ $numsed -gt 100 ]
            then
                sed -f $tmp.sed <$tmp.list >$tmp.tmp
                mv $tmp.tmp $tmp.list
                numsed=0
                rm -f $tmp.sed
            fi
            echo "/^$t\$/d" >>$tmp.sed
            numsed=`expr $numsed + 1`
        done
        sed -f $tmp.sed <$tmp.list >$tmp.tmp
        mv $tmp.tmp $tmp.list
        xgroup=false
        continue

    elif $imgopts
    then
        IMGOPTS="$r"
        imgopts=false
        continue
    elif $cachemode
    then
        CACHEMODE="$r"
        CACHEMODE_IS_DEFAULT=false
        cachemode=false
        continue
    fi

    xpand=true
    case "$r"
    in

        -\? | -h | --help)        # usage
            echo "Usage: $0 [options] [testlist]"'

common options
    -v                  verbose

check options
    -raw                test raw (default)
    -bochs              test bochs
    -cow                test cow
    -cloop              test cloop
    -qcow               test qcow
    -qcow2              test qcow2
    -qed                test qed
    -vdi                test vdi
    -vpc                test vpc
    -vhdx               test vhdx
    -vmdk               test vmdk
    -file               test file (default)
    -rbd                test rbd
    -sheepdog           test sheepdog
    -nbd                test nbd
    -ssh                test ssh
    -nfs                test nfs
    -xdiff              graphical mode diff
    -nocache            use O_DIRECT on backing file
    -misalign           misalign memory allocations
    -n                  show me, do not run tests
    -o options          -o options to pass to qemu-img create/convert
    -T                  output timestamps
    -r                  randomize test order
    -c mode             cache mode

testlist options
    -g group[,group...]        include tests from these groups
    -x group[,group...]        exclude tests from these groups
    NNN                        include test NNN
    NNN-NNN                    include test range (eg. 012-021)
'
            exit 0
            ;;

        -raw)
            IMGFMT=raw
            xpand=false
            ;;

        -bochs)
            IMGFMT=bochs
            IMGFMT_GENERIC=false
            xpand=false
            ;;

        -cow)
            IMGFMT=cow
            xpand=false
            ;;

        -cloop)
            IMGFMT=cloop
            IMGFMT_GENERIC=false
            xpand=false
            ;;

        -qcow)
            IMGFMT=qcow
            xpand=false
            ;;

        -qcow2)
            IMGFMT=qcow2
            xpand=false
            ;;

        -qed)
            IMGFMT=qed
            xpand=false
            ;;

        -vdi)
            IMGFMT=vdi
            xpand=false
            ;;

        -vmdk)
            IMGFMT=vmdk
            xpand=false
            ;;

        -vpc)
            IMGFMT=vpc
            xpand=false
            ;;

        -vhdx)
            IMGFMT=vhdx
            xpand=false
            ;;

        -file)
            IMGPROTO=file
            xpand=false
            ;;

        -rbd)
            IMGPROTO=rbd
            xpand=false
            ;;

        -sheepdog)
            IMGPROTO=sheepdog
            xpand=false
            ;;

        -nbd)
            IMGPROTO=nbd
            xpand=false
            ;;

        -ssh)
            IMGPROTO=ssh
            xpand=false
            ;;

        -nfs)
            IMGPROTO=nfs
            xpand=false
            ;;

        -nocache)
            CACHEMODE="none"
            CACHEMODE_IS_DEFAULT=false
            xpand=false
            ;;

        -misalign)
            QEMU_IO_OPTIONS="$QEMU_IO_OPTIONS --misalign"
            xpand=false
            ;;

        -valgrind)
            valgrind=true
            xpand=false
            ;;

        -g)        # -g group ... pick from group file
            group=true
            xpand=false
            ;;

        -xdiff)        # graphical diff mode
            xpand=false

            if [ ! -z "$DISPLAY" ]
            then
                which xdiff >/dev/null 2>&1 && diff=xdiff
                which gdiff >/dev/null 2>&1 && diff=gdiff
                which tkdiff >/dev/null 2>&1 && diff=tkdiff
                which xxdiff >/dev/null 2>&1 && diff=xxdiff
            fi
            ;;

        -n)        # show me, don't do it
            showme=true
            xpand=false
            ;;
        -o)
            imgopts=true
            xpand=false
            ;;
        -c)
            cachemode=true
            xpand=false
            ;;
        -r)        # randomize test order
            randomize=true
            xpand=false
            ;;

        -T)        # turn on timestamp output
            timestamp=true
            xpand=false
            ;;

        -v)
            verbose=true
            xpand=false
            ;;
        -x)        # -x group ... exclude from group file
            xgroup=true
            xpand=false
            ;;
        '[0-9][0-9][0-9] [0-9][0-9][0-9][0-9]')
            echo "No tests?"
            status=1
            exit $status
            ;;

        [0-9]*-[0-9]*)
            eval `echo $r | sed -e 's/^/start=/' -e 's/-/ end=/'`
            ;;

        [0-9]*-)
            eval `echo $r | sed -e 's/^/start=/' -e 's/-//'`
            end=`echo [0-9][0-9][0-9] [0-9][0-9][0-9][0-9] | sed -e 's/\[0-9]//g' -e 's/  *$//' -e 's/.* //'`
            if [ -z "$end" ]
            then
                echo "No tests in range \"$r\"?"
                status=1
                exit $status
            fi
            ;;

        *)
            start=$r
            end=$r
            ;;

    esac

    # get rid of leading 0s as can be interpreted as octal
    start=`echo $start | sed 's/^0*//'`
    end=`echo $end | sed 's/^0*//'`

    if $xpand
    then
        have_test_arg=true
        $AWK_PROG </dev/null '
BEGIN        { for (t='$start'; t<='$end'; t++) printf "%03d\n",t }' \
        | while read id
        do
            if grep -s "^$id " group >/dev/null
            then
                # in group file ... OK
                echo $id >>$tmp.list
            else
                if [ -f expunged ] && $expunge && egrep "^$id([         ]|\$)" expunged >/dev/null
                then
                    # expunged ... will be reported, but not run, later
                    echo $id >>$tmp.list
                else
                    # oops
                    echo "$id - unknown test, ignored"
                fi
            fi
        done
    fi

done

# Set qemu-io cache mode with $CACHEMODE we have
QEMU_IO_OPTIONS="$QEMU_IO_OPTIONS --cache $CACHEMODE"

# Set default options for qemu-img create -o if they were not specified
_set_default_imgopts

if [ -s $tmp.list ]
then
    # found some valid test numbers ... this is good
    :
else
    if $have_test_arg
    then
        # had test numbers, but none in group file ... do nothing
        touch $tmp.list
    else
        # no test numbers, do everything from group file
        sed -n -e '/^[0-9][0-9][0-9]*/s/[         ].*//p' <group >$tmp.list
    fi
fi

# should be sort -n, but this did not work for Linux when this
# was ported from IRIX
#
list=`sort $tmp.list`
rm -f $tmp.list $tmp.tmp $tmp.sed

if $randomize
then
    list=`echo $list | awk -f randomize.awk`
fi

[ "$QEMU" = "" ] && _fatal "qemu not found"
[ "$QEMU_IMG" = "" ] && _fatal "qemu-img not found"
[ "$QEMU_IO" = "" ] && _fatal "qemu-io not found"

if [ "$IMGPROTO" = "nbd" ] ; then
    [ "$QEMU_NBD" = "" ] && _fatal "qemu-nbd not found"
fi

if $valgrind; then
    export REAL_QEMU_IO="$QEMU_IO_PROG"
    export QEMU_IO_PROG=valgrind_qemu_io
fi