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Diffstat (limited to 'qemu/tests/qemu-iotests/044')
| -rwxr-xr-x | qemu/tests/qemu-iotests/044 | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/qemu/tests/qemu-iotests/044 b/qemu/tests/qemu-iotests/044 deleted file mode 100755 index 11ea0f4d3..000000000 --- a/qemu/tests/qemu-iotests/044 +++ /dev/null @@ -1,117 +0,0 @@ -#!/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 - -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 xrange(0, h.refcount_table_clusters): - sector = ''.join(struct.pack('>Q', - off_refblock + i * 64 * 512 + j * 512) - for j in xrange(0, 64)) - fd.write(sector) - - # Write the refcount blocks - assert(fd.tell() == off_refblock) - sector = ''.join(struct.pack('>H', 1) for j in xrange(0, 64 * 256)) - for block in xrange(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 = ''.join(struct.pack('>Q', (1 << 63) | off_l2 + 512 * j) - for j in xrange(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 xrange(0, 1024)) - table = struct.pack('>1024Q', *pytable) - fd.write(table) - remaining = remaining - 1024 * 512 - off = off + 1024 * 512 - - table = ''.join(struct.pack('>Q', (1 << 63) | off + 512 * j) - for j in xrange(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']) |