1#!/usr/bin/env python3 2# 3# Test parallels load bitmap 4# 5# Copyright (c) 2021 Virtuozzo International GmbH. 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_nbd_popen, qemu_img_map, log, file_path 23 24iotests.script_initialize(supported_fmts=['parallels']) 25 26nbd_sock = file_path('nbd-sock', base_dir=iotests.sock_dir) 27disk = iotests.file_path('disk') 28bitmap = 'e4f2eed0-37fe-4539-b50b-85d2e7fd235f' 29nbd_opts = f'driver=nbd,server.type=unix,server.path={nbd_sock}' \ 30 f',x-dirty-bitmap=qemu:dirty-bitmap:{bitmap}' 31 32 33iotests.unarchive_sample_image('parallels-with-bitmap', disk) 34 35 36with qemu_nbd_popen('--read-only', f'--socket={nbd_sock}', 37 f'--bitmap={bitmap}', '-f', iotests.imgfmt, disk): 38 chunks = qemu_img_map('--image-opts', nbd_opts) 39 cluster = 64 * 1024 40 41 log('dirty clusters (cluster size is 64K):') 42 for c in chunks: 43 assert c['start'] % cluster == 0 44 assert c['length'] % cluster == 0 45 if c['data']: 46 continue 47 48 a = c['start'] // cluster 49 b = (c['start'] + c['length']) // cluster 50 if b - a > 1: 51 log(f'{a}-{b-1}') 52 else: 53 log(a) 54