mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-28 05:50:37 +00:00
7e693a0500
Some scripts check the Python version number and have two code paths to accomodate both Python 2 and 3. Remove the code specific to Python 2 and assert the minimum version of 3.6 instead (check skips Python tests in this case, so the assertion would only ever trigger if a Python script is executed manually). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: John Snow <jsnow@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
120 lines
3.8 KiB
Python
Executable File
120 lines
3.8 KiB
Python
Executable File
#!/usr/bin/env python
|
|
#
|
|
# Tests growing a large refcount table.
|
|
#
|
|
# Copyright (C) 2012 Red Hat, Inc.
|
|
#
|
|
# 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; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# This program is distributed in the hope that it will 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/>.
|
|
#
|
|
|
|
import time
|
|
import os
|
|
import qcow2
|
|
from qcow2 import QcowHeader
|
|
import iotests
|
|
from iotests import qemu_img, qemu_img_verbose, qemu_io
|
|
import struct
|
|
import subprocess
|
|
import sys
|
|
|
|
test_img = os.path.join(iotests.test_dir, 'test.img')
|
|
|
|
class TestRefcountTableGrowth(iotests.QMPTestCase):
|
|
'''Abstract base class for image mirroring test cases'''
|
|
|
|
def preallocate(self, name):
|
|
fd = open(name, "r+b")
|
|
try:
|
|
off_reftable = 512
|
|
off_refblock = off_reftable + (512 * 512)
|
|
off_l1 = off_refblock + (512 * 512 * 64)
|
|
off_l2 = off_l1 + (512 * 512 * 4 * 8)
|
|
off_data = off_l2 + (512 * 512 * 4 * 512)
|
|
|
|
# Write a new header
|
|
h = QcowHeader(fd)
|
|
h.refcount_table_offset = off_reftable
|
|
h.refcount_table_clusters = 512
|
|
h.l1_table_offset = off_l1
|
|
h.l1_size = 512 * 512 * 4
|
|
h.update(fd)
|
|
|
|
# Write a refcount table
|
|
fd.seek(off_reftable)
|
|
|
|
for i in range(0, h.refcount_table_clusters):
|
|
sector = b''.join(struct.pack('>Q',
|
|
off_refblock + i * 64 * 512 + j * 512)
|
|
for j in range(0, 64))
|
|
fd.write(sector)
|
|
|
|
# Write the refcount blocks
|
|
assert(fd.tell() == off_refblock)
|
|
sector = b''.join(struct.pack('>H', 1) for j in range(0, 64 * 256))
|
|
for block in range(0, h.refcount_table_clusters):
|
|
fd.write(sector)
|
|
|
|
# Write the L1 table
|
|
assert(fd.tell() == off_l1)
|
|
assert(off_l2 + 512 * h.l1_size == off_data)
|
|
table = b''.join(struct.pack('>Q', (1 << 63) | off_l2 + 512 * j)
|
|
for j in range(0, h.l1_size))
|
|
fd.write(table)
|
|
|
|
# Write the L2 tables
|
|
assert(fd.tell() == off_l2)
|
|
img_file_size = h.refcount_table_clusters * 64 * 256 * 512
|
|
remaining = img_file_size - off_data
|
|
|
|
off = off_data
|
|
while remaining > 1024 * 512:
|
|
pytable = list((1 << 63) | off + 512 * j
|
|
for j in range(0, 1024))
|
|
table = struct.pack('>1024Q', *pytable)
|
|
fd.write(table)
|
|
remaining = remaining - 1024 * 512
|
|
off = off + 1024 * 512
|
|
|
|
table = b''.join(struct.pack('>Q', (1 << 63) | off + 512 * j)
|
|
for j in range(0, remaining // 512))
|
|
fd.write(table)
|
|
|
|
|
|
# Data
|
|
fd.truncate(img_file_size)
|
|
|
|
|
|
finally:
|
|
fd.close()
|
|
|
|
|
|
def setUp(self):
|
|
qemu_img('create', '-f', iotests.imgfmt, '-o', 'cluster_size=512', test_img, '16G')
|
|
self.preallocate(test_img)
|
|
pass
|
|
|
|
|
|
def tearDown(self):
|
|
os.remove(test_img)
|
|
pass
|
|
|
|
def test_grow_refcount_table(self):
|
|
qemu_io('-c', 'write 3800M 1M', test_img)
|
|
qemu_img_verbose('check' , test_img)
|
|
pass
|
|
|
|
if __name__ == '__main__':
|
|
iotests.main(supported_fmts=['qcow2'],
|
|
supported_protocols=['file'])
|