1#!/usr/bin/env python3
2#
3# Test resume mirror after auto pause on ENOSPC
4#
5# Copyright (c) 2019 Virtuozzo International GmbH. All rights reserved.
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
21import iotests
22from iotests import qemu_img_create, qemu_io, file_path, filter_qmp_testfiles
23
24iotests.script_initialize(supported_fmts=['qcow2'])
25
26source, target = file_path('source', 'target')
27size = 5 * 1024 * 1024
28limit = 2 * 1024 * 1024
29
30qemu_img_create('-f', iotests.imgfmt, source, str(size))
31qemu_img_create('-f', iotests.imgfmt, target, str(size))
32qemu_io('-c', 'write 0 {}'.format(size), source)
33
34# raw format don't like empty files
35qemu_io('-c', 'write 0 {}'.format(size), target)
36
37vm = iotests.VM().add_drive(source)
38vm.launch()
39
40blockdev_opts = {
41    'driver': iotests.imgfmt,
42    'node-name': 'target',
43    'file': {
44        'driver': 'raw',
45        'size': limit,
46        'file': {
47            'driver': 'file',
48            'filename': target
49        }
50    }
51}
52vm.qmp_log('blockdev-add', filters=[filter_qmp_testfiles], **blockdev_opts)
53
54vm.qmp_log('blockdev-mirror', device='drive0', sync='full', target='target',
55           on_target_error='enospc')
56
57vm.event_wait('JOB_STATUS_CHANGE', timeout=3.0,
58              match={'data': {'status': 'paused'}})
59
60# drop other cached events, to not interfere with further wait for 'running'
61vm.get_qmp_events()
62
63del blockdev_opts['file']['size']
64vm.qmp_log('x-blockdev-reopen', filters=[filter_qmp_testfiles],
65           **blockdev_opts)
66
67vm.qmp_log('block-job-resume', device='drive0')
68vm.event_wait('JOB_STATUS_CHANGE', timeout=1.0,
69              match={'data': {'status': 'running'}})
70
71vm.shutdown()
72