root / tests / qemu-iotests / 030 @ ecc1c88e
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#!/usr/bin/env python |
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# |
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# Tests for image streaming. |
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# |
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# Copyright (C) 2012 IBM Corp. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program. If not, see <http://www.gnu.org/licenses/>. |
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# |
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|
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import time |
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import os |
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import iotests |
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from iotests import qemu_img, qemu_io |
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import struct |
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|
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backing_img = os.path.join(iotests.test_dir, 'backing.img') |
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mid_img = os.path.join(iotests.test_dir, 'mid.img') |
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test_img = os.path.join(iotests.test_dir, 'test.img') |
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|
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class ImageStreamingTestCase(iotests.QMPTestCase): |
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'''Abstract base class for image streaming test cases''' |
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|
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def cancel_and_wait(self, drive='drive0'): |
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'''Cancel a block job and wait for it to finish''' |
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result = self.vm.qmp('block-job-cancel', device=drive)
|
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self.assert_qmp(result, 'return', {})
|
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|
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cancelled = False |
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while not cancelled: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_CANCELLED': |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', drive) |
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cancelled = True |
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|
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self.assert_no_active_block_jobs() |
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|
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def create_image(self, name, size): |
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file = open(name, 'w') |
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i = 0 |
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while i < size: |
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sector = struct.pack('>l504xl', i / 512, i / 512)
|
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file.write(sector) |
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i = i + 512 |
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file.close() |
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|
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|
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class TestSingleDrive(ImageStreamingTestCase): |
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image_len = 1 * 1024 * 1024 # MB |
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|
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def setUp(self): |
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self.create_image(backing_img, TestSingleDrive.image_len) |
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qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
|
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qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
|
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self.vm = iotests.VM().add_drive(test_img) |
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self.vm.launch() |
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|
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def tearDown(self): |
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self.vm.shutdown() |
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os.remove(test_img) |
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os.remove(mid_img) |
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os.remove(backing_img) |
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|
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def test_stream(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0')
|
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self.assert_qmp(result, 'return', {})
|
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|
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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self.assertEqual(qemu_io('-c', 'map', backing_img),
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qemu_io('-c', 'map', test_img),
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'image file map does not match backing file after streaming') |
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|
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def test_stream_pause(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0')
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self.assert_qmp(result, 'return', {})
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|
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result = self.vm.qmp('block-job-pause', device='drive0')
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self.assert_qmp(result, 'return', {})
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|
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time.sleep(1) |
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result = self.vm.qmp('query-block-jobs')
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offset = self.dictpath(result, 'return[0]/offset') |
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|
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time.sleep(1) |
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result = self.vm.qmp('query-block-jobs')
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self.assert_qmp(result, 'return[0]/offset', offset) |
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|
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result = self.vm.qmp('block-job-resume', device='drive0')
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self.assert_qmp(result, 'return', {})
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|
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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self.assertEqual(qemu_io('-c', 'map', backing_img),
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qemu_io('-c', 'map', test_img),
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'image file map does not match backing file after streaming') |
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|
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def test_stream_partial(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0', base=mid_img)
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self.assert_qmp(result, 'return', {})
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|
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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self.assertEqual(qemu_io('-c', 'map', mid_img),
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qemu_io('-c', 'map', test_img),
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'image file map does not match backing file after streaming') |
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|
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def test_device_not_found(self): |
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result = self.vm.qmp('block-stream', device='nonexistent')
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self.assert_qmp(result, 'error/class', 'DeviceNotFound') |
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|
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|
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class TestSmallerBackingFile(ImageStreamingTestCase): |
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backing_len = 1 * 1024 * 1024 # MB |
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image_len = 2 * backing_len |
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|
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def setUp(self): |
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self.create_image(backing_img, self.backing_len) |
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qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img, str(self.image_len))
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self.vm = iotests.VM().add_drive(test_img) |
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self.vm.launch() |
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|
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# If this hangs, then you are missing a fix to complete streaming when the |
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# end of the backing file is reached. |
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def test_stream(self): |
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self.assert_no_active_block_jobs() |
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result = self.vm.qmp('block-stream', device='drive0')
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self.assert_qmp(result, 'return', {})
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|
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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class TestErrors(ImageStreamingTestCase): |
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image_len = 2 * 1024 * 1024 # MB |
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|
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# this should match STREAM_BUFFER_SIZE/512 in block/stream.c |
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STREAM_BUFFER_SIZE = 512 * 1024 |
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|
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def create_blkdebug_file(self, name, event, errno): |
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file = open(name, 'w') |
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file.write('''
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[inject-error] |
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state = "1" |
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event = "%s" |
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errno = "%d" |
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immediately = "off" |
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once = "on" |
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sector = "%d" |
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|
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[set-state] |
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state = "1" |
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event = "%s" |
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new_state = "2" |
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|
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[set-state] |
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state = "2" |
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event = "%s" |
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new_state = "1" |
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''' % (event, errno, self.STREAM_BUFFER_SIZE / 512, event, event)) |
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file.close() |
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|
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class TestEIO(TestErrors): |
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def setUp(self): |
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self.blkdebug_file = backing_img + ".blkdebug" |
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self.create_image(backing_img, TestErrors.image_len) |
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self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5) |
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qemu_img('create', '-f', iotests.imgfmt,
|
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'-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' |
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% (self.blkdebug_file, backing_img), |
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test_img) |
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self.vm = iotests.VM().add_drive(test_img) |
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self.vm.launch() |
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|
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def tearDown(self): |
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self.vm.shutdown() |
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os.remove(test_img) |
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os.remove(backing_img) |
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os.remove(self.blkdebug_file) |
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|
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def test_report(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0')
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self.assert_qmp(result, 'return', {})
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|
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completed = False |
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error = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_ERROR': |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/operation', 'read') |
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error = True |
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elif event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assertTrue(error, 'job completed unexpectedly') |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/error', 'Input/output error') |
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self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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def test_ignore(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0', on_error='ignore')
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self.assert_qmp(result, 'return', {})
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|
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error = False |
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_ERROR': |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/operation', 'read') |
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result = self.vm.qmp('query-block-jobs')
|
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self.assert_qmp(result, 'return[0]/paused', False) |
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error = True |
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elif event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assertTrue(error, 'job completed unexpectedly') |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/error', 'Input/output error') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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def test_stop(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0', on_error='stop')
|
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self.assert_qmp(result, 'return', {})
|
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|
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error = False |
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completed = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_ERROR': |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/operation', 'read') |
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|
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result = self.vm.qmp('query-block-jobs')
|
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self.assert_qmp(result, 'return[0]/paused', True) |
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self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE) |
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self.assert_qmp(result, 'return[0]/io-status', 'failed') |
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|
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result = self.vm.qmp('block-job-resume', device='drive0')
|
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self.assert_qmp(result, 'return', {})
|
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|
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result = self.vm.qmp('query-block-jobs')
|
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self.assert_qmp(result, 'return[0]/paused', False) |
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self.assert_qmp(result, 'return[0]/io-status', 'ok') |
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error = True |
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elif event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assertTrue(error, 'job completed unexpectedly') |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp_absent(event, 'data/error') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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def test_enospc(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
|
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self.assert_qmp(result, 'return', {})
|
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|
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completed = False |
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error = False |
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while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
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if event['event'] == 'BLOCK_JOB_ERROR': |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/operation', 'read') |
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error = True |
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elif event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assertTrue(error, 'job completed unexpectedly') |
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self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/error', 'Input/output error') |
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self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
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|
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class TestENOSPC(TestErrors): |
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def setUp(self): |
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self.blkdebug_file = backing_img + ".blkdebug" |
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self.create_image(backing_img, TestErrors.image_len) |
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self.create_blkdebug_file(self.blkdebug_file, "read_aio", 28) |
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qemu_img('create', '-f', iotests.imgfmt,
|
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'-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' |
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% (self.blkdebug_file, backing_img), |
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test_img) |
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self.vm = iotests.VM().add_drive(test_img) |
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self.vm.launch() |
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|
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def tearDown(self): |
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self.vm.shutdown() |
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os.remove(test_img) |
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os.remove(backing_img) |
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os.remove(self.blkdebug_file) |
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|
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def test_enospc(self): |
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self.assert_no_active_block_jobs() |
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|
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result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
|
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self.assert_qmp(result, 'return', {})
|
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|
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error = False |
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completed = False |
| 385 |
while not completed: |
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for event in self.vm.get_qmp_events(wait=True): |
| 387 |
if event['event'] == 'BLOCK_JOB_ERROR': |
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self.assert_qmp(event, 'data/device', 'drive0') |
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self.assert_qmp(event, 'data/operation', 'read') |
| 390 |
|
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result = self.vm.qmp('query-block-jobs')
|
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self.assert_qmp(result, 'return[0]/paused', True) |
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self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE) |
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self.assert_qmp(result, 'return[0]/io-status', 'nospace') |
| 395 |
|
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result = self.vm.qmp('block-job-resume', device='drive0')
|
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self.assert_qmp(result, 'return', {})
|
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|
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result = self.vm.qmp('query-block-jobs')
|
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self.assert_qmp(result, 'return[0]/paused', False) |
| 401 |
self.assert_qmp(result, 'return[0]/io-status', 'ok') |
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error = True |
| 403 |
elif event['event'] == 'BLOCK_JOB_COMPLETED': |
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self.assertTrue(error, 'job completed unexpectedly') |
| 405 |
self.assert_qmp(event, 'data/type', 'stream') |
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self.assert_qmp(event, 'data/device', 'drive0') |
| 407 |
self.assert_qmp_absent(event, 'data/error') |
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self.assert_qmp(event, 'data/offset', self.image_len) |
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self.assert_qmp(event, 'data/len', self.image_len) |
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completed = True |
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|
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self.assert_no_active_block_jobs() |
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self.vm.shutdown() |
| 414 |
|
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class TestStreamStop(ImageStreamingTestCase): |
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image_len = 8 * 1024 * 1024 * 1024 # GB |
| 417 |
|
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def setUp(self): |
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qemu_img('create', backing_img, str(TestStreamStop.image_len))
|
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qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
|
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self.vm = iotests.VM().add_drive(test_img) |
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self.vm.launch() |
| 423 |
|
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def tearDown(self): |
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self.vm.shutdown() |
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os.remove(test_img) |
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os.remove(backing_img) |
| 428 |
|
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def test_stream_stop(self): |
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self.assert_no_active_block_jobs() |
| 431 |
|
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result = self.vm.qmp('block-stream', device='drive0')
|
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self.assert_qmp(result, 'return', {})
|
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|
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time.sleep(0.1) |
| 436 |
events = self.vm.get_qmp_events(wait=False) |
| 437 |
self.assertEqual(events, [], 'unexpected QMP event: %s' % events) |
| 438 |
|
| 439 |
self.cancel_and_wait() |
| 440 |
|
| 441 |
class TestSetSpeed(ImageStreamingTestCase): |
| 442 |
image_len = 80 * 1024 * 1024 # MB |
| 443 |
|
| 444 |
def setUp(self): |
| 445 |
qemu_img('create', backing_img, str(TestSetSpeed.image_len))
|
| 446 |
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
|
| 447 |
self.vm = iotests.VM().add_drive(test_img) |
| 448 |
self.vm.launch() |
| 449 |
|
| 450 |
def tearDown(self): |
| 451 |
self.vm.shutdown() |
| 452 |
os.remove(test_img) |
| 453 |
os.remove(backing_img) |
| 454 |
|
| 455 |
# This is a short performance test which is not run by default. |
| 456 |
# Invoke "IMGFMT=qed ./030 TestSetSpeed.perf_test_throughput" |
| 457 |
def perf_test_throughput(self): |
| 458 |
self.assert_no_active_block_jobs() |
| 459 |
|
| 460 |
result = self.vm.qmp('block-stream', device='drive0')
|
| 461 |
self.assert_qmp(result, 'return', {})
|
| 462 |
|
| 463 |
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
|
| 464 |
self.assert_qmp(result, 'return', {})
|
| 465 |
|
| 466 |
completed = False |
| 467 |
while not completed: |
| 468 |
for event in self.vm.get_qmp_events(wait=True): |
| 469 |
if event['event'] == 'BLOCK_JOB_COMPLETED': |
| 470 |
self.assert_qmp(event, 'data/type', 'stream') |
| 471 |
self.assert_qmp(event, 'data/device', 'drive0') |
| 472 |
self.assert_qmp(event, 'data/offset', self.image_len) |
| 473 |
self.assert_qmp(event, 'data/len', self.image_len) |
| 474 |
completed = True |
| 475 |
|
| 476 |
self.assert_no_active_block_jobs() |
| 477 |
|
| 478 |
def test_set_speed(self): |
| 479 |
self.assert_no_active_block_jobs() |
| 480 |
|
| 481 |
result = self.vm.qmp('block-stream', device='drive0')
|
| 482 |
self.assert_qmp(result, 'return', {})
|
| 483 |
|
| 484 |
# Default speed is 0 |
| 485 |
result = self.vm.qmp('query-block-jobs')
|
| 486 |
self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 487 |
self.assert_qmp(result, 'return[0]/speed', 0) |
| 488 |
|
| 489 |
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
|
| 490 |
self.assert_qmp(result, 'return', {})
|
| 491 |
|
| 492 |
# Ensure the speed we set was accepted |
| 493 |
result = self.vm.qmp('query-block-jobs')
|
| 494 |
self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 495 |
self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024) |
| 496 |
|
| 497 |
self.cancel_and_wait() |
| 498 |
|
| 499 |
# Check setting speed in block-stream works |
| 500 |
result = self.vm.qmp('block-stream', device='drive0', speed=4 * 1024 * 1024)
|
| 501 |
self.assert_qmp(result, 'return', {})
|
| 502 |
|
| 503 |
result = self.vm.qmp('query-block-jobs')
|
| 504 |
self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 505 |
self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024) |
| 506 |
|
| 507 |
self.cancel_and_wait() |
| 508 |
|
| 509 |
def test_set_speed_invalid(self): |
| 510 |
self.assert_no_active_block_jobs() |
| 511 |
|
| 512 |
result = self.vm.qmp('block-stream', device='drive0', speed=-1)
|
| 513 |
self.assert_qmp(result, 'error/class', 'GenericError') |
| 514 |
|
| 515 |
self.assert_no_active_block_jobs() |
| 516 |
|
| 517 |
result = self.vm.qmp('block-stream', device='drive0')
|
| 518 |
self.assert_qmp(result, 'return', {})
|
| 519 |
|
| 520 |
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
|
| 521 |
self.assert_qmp(result, 'error/class', 'GenericError') |
| 522 |
|
| 523 |
self.cancel_and_wait() |
| 524 |
|
| 525 |
if __name__ == '__main__': |
| 526 |
iotests.main(supported_fmts=['qcow2', 'qed']) |