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Annotation of qemu/tests/qemu-iotests/020, revision 1.1.1.1

1.1       root        1: #!/bin/bash
                      2: #
                      3: # Commit changes to backing file
                      4: #
                      5: # Copyright (C) 2009 Red Hat, Inc.
                      6: #
                      7: # This program is free software; you can redistribute it and/or modify
                      8: # it under the terms of the GNU General Public License as published by
                      9: # the Free Software Foundation; either version 2 of the License, or
                     10: # (at your option) any later version.
                     11: #
                     12: # This program is distributed in the hope that it will be useful,
                     13: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: # GNU General Public License for more details.
                     16: #
                     17: # You should have received a copy of the GNU General Public License
                     18: # along with this program.  If not, see <http://www.gnu.org/licenses/>.
                     19: #
                     20: 
                     21: # creator
                     22: [email protected]
                     23: 
                     24: seq=`basename $0`
                     25: echo "QA output created by $seq"
                     26: 
                     27: here=`pwd`
                     28: tmp=/tmp/$$
                     29: status=1       # failure is the default!
                     30: 
                     31: _cleanup()
                     32: {
                     33:        _cleanup_test_img
                     34:     rm -f $TEST_IMG.base
                     35:     rm -f $TEST_IMG.orig
                     36: }
                     37: trap "_cleanup; exit \$status" 0 1 2 3 15
                     38: 
                     39: # get standard environment, filters and checks
                     40: . ./common.rc
                     41: . ./common.filter
                     42: . ./common.pattern
                     43: 
                     44: # Any format supporting backing files
                     45: _supported_fmt qcow qcow2 vmdk qed
                     46: _supported_proto generic
                     47: _supported_os Linux
                     48: 
                     49: TEST_OFFSETS="0 4294967296"
                     50: 
                     51: _make_test_img 6G
                     52: 
                     53: echo "Filling base image"
                     54: echo
                     55: 
                     56: for offset in $TEST_OFFSETS; do
                     57:     # Some clusters with alternating backing file/image file reads
                     58:     io writev $(( offset )) 512 1024 64
                     59: 
                     60:     # Complete backing clusters
                     61:     io writev $(( offset  + 64 * 1024))  65536 65536 1
                     62: done
                     63: _check_test_img
                     64: 
                     65: echo "Creating test image with backing file"
                     66: echo
                     67: 
                     68: mv $TEST_IMG $TEST_IMG.base
                     69: _make_test_img -b $TEST_IMG.base 6G
                     70: 
                     71: echo "Filling test image"
                     72: echo
                     73: 
                     74: for offset in $TEST_OFFSETS; do
                     75:     # Some clusters with alternating backing file/image file reads
                     76:     io writev $(( offset + 512 )) 512 1024 64
                     77: 
                     78:     # Complete test image clusters
                     79:     io writev $(( offset + 64 * 1024 + 65536))  65536 65536 1
                     80: done
                     81: _check_test_img
                     82: 
                     83: $QEMU_IMG commit $TEST_IMG
                     84: mv $TEST_IMG.base $TEST_IMG
                     85: 
                     86: echo "Reading from the backing file"
                     87: echo
                     88: 
                     89: for offset in $TEST_OFFSETS; do
                     90:     # Some clusters with alternating backing file/image file reads
                     91:     io readv $(( offset )) 512 1024 64
                     92:     io readv $(( offset + 512 )) 512 1024 64
                     93: 
                     94:     # Complete test image clusters
                     95:     io readv $(( offset  + 64 * 1024))  65536 65536 1
                     96:     io readv $(( offset + 64 * 1024 + 65536))  65536 65536 1
                     97: 
                     98:     # Empty sectors
                     99:     io_zero readv $(( offset + 64 * 1024 + 65536 * 4 )) 65536 65536 1
                    100: done
                    101: _check_test_img
                    102: 
                    103: # success, all done
                    104: echo "*** done"
                    105: rm -f $seq.full
                    106: status=0

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