704d59f13d
As with test_stream_parallel(), we allow mixing block-stream and block-commit operations in the same backing chain as long as there's no overlap among the involved nodes. Signed-off-by: Alberto Garcia <berto@igalia.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
708 lines
28 KiB
Python
Executable File
708 lines
28 KiB
Python
Executable File
#!/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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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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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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class TestSingleDrive(iotests.QMPTestCase):
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image_len = 1 * 1024 * 1024 # MB
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def setUp(self):
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iotests.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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qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 512', backing_img)
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qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 524288 512', mid_img)
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self.vm = iotests.VM().add_drive("blkdebug::" + test_img, "backing.node-name=mid")
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self.vm.launch()
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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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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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self.wait_until_completed()
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
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'image file map does not match backing file after streaming')
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def test_stream_intermediate(self):
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self.assert_no_active_block_jobs()
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self.assertNotEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
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'image file map matches backing file before streaming')
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result = self.vm.qmp('block-stream', device='mid', job_id='stream-mid')
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self.assert_qmp(result, 'return', {})
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self.wait_until_completed(drive='stream-mid')
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
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'image file map does not match backing file after streaming')
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def test_stream_pause(self):
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self.assert_no_active_block_jobs()
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self.vm.pause_drive('drive0')
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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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result = self.vm.qmp('block-job-pause', device='drive0')
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self.assert_qmp(result, 'return', {})
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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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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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result = self.vm.qmp('block-job-resume', device='drive0')
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self.assert_qmp(result, 'return', {})
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self.vm.resume_drive('drive0')
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self.wait_until_completed()
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
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'image file map does not match backing file after streaming')
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def test_stream_no_op(self):
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self.assert_no_active_block_jobs()
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# The image map is empty before the operation
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empty_map = qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img)
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# This is a no-op: no data should ever be copied from the base image
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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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self.wait_until_completed()
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
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empty_map, 'image file map changed after a no-op')
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def test_stream_partial(self):
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self.assert_no_active_block_jobs()
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result = self.vm.qmp('block-stream', device='drive0', base=backing_img)
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self.assert_qmp(result, 'return', {})
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self.wait_until_completed()
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
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'image file map does not match backing file after streaming')
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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', 'GenericError')
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class TestParallelOps(iotests.QMPTestCase):
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num_ops = 4 # Number of parallel block-stream operations
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num_imgs = num_ops * 2 + 1
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image_len = num_ops * 1024 * 1024
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imgs = []
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def setUp(self):
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opts = []
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self.imgs = []
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# Initialize file names and command-line options
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for i in range(self.num_imgs):
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img_depth = self.num_imgs - i - 1
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opts.append("backing." * img_depth + "node-name=node%d" % i)
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self.imgs.append(os.path.join(iotests.test_dir, 'img-%d.img' % i))
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# Create all images
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iotests.create_image(self.imgs[0], self.image_len)
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for i in range(1, self.num_imgs):
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qemu_img('create', '-f', iotests.imgfmt,
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'-o', 'backing_file=%s' % self.imgs[i-1], self.imgs[i])
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# Put data into the images we are copying data from
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for i in range(self.num_imgs / 2):
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img_index = i * 2 + 1
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# Alternate between 512k and 1M.
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# This way jobs will not finish in the same order they were created
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num_kb = 512 + 512 * (i % 2)
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qemu_io('-f', iotests.imgfmt,
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'-c', 'write -P %d %d %d' % (i, i*1024*1024, num_kb * 1024),
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self.imgs[img_index])
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# Attach the drive to the VM
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self.vm = iotests.VM()
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self.vm.add_drive(self.imgs[-1], ','.join(opts))
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self.vm.launch()
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def tearDown(self):
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self.vm.shutdown()
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for img in self.imgs:
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os.remove(img)
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# Test that it's possible to run several block-stream operations
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# in parallel in the same snapshot chain
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def test_stream_parallel(self):
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self.assert_no_active_block_jobs()
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# Check that the maps don't match before the streaming operations
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for i in range(2, self.num_imgs, 2):
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self.assertNotEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i]),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i-1]),
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'image file map matches backing file before streaming')
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# Create all streaming jobs
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pending_jobs = []
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for i in range(2, self.num_imgs, 2):
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node_name = 'node%d' % i
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job_id = 'stream-%s' % node_name
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pending_jobs.append(job_id)
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result = self.vm.qmp('block-stream', device=node_name, job_id=job_id, base=self.imgs[i-2], speed=512*1024)
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self.assert_qmp(result, 'return', {})
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# Wait for all jobs to be finished.
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while len(pending_jobs) > 0:
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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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job_id = self.dictpath(event, 'data/device')
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self.assertTrue(job_id in pending_jobs)
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self.assert_qmp_absent(event, 'data/error')
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pending_jobs.remove(job_id)
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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# Check that all maps match now
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for i in range(2, self.num_imgs, 2):
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self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i]),
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qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i-1]),
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'image file map does not match backing file after streaming')
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# Test that it's not possible to perform two block-stream
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# operations if there are nodes involved in both.
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def test_overlapping_1(self):
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self.assert_no_active_block_jobs()
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# Set a speed limit to make sure that this job blocks the rest
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result = self.vm.qmp('block-stream', device='node4', job_id='stream-node4', base=self.imgs[1], speed=1024*1024)
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('block-stream', device='node5', job_id='stream-node5', base=self.imgs[2])
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3', base=self.imgs[2])
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-stream', device='node4', job_id='stream-node4-v2')
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self.assert_qmp(result, 'error/class', 'GenericError')
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# block-commit should also fail if it touches nodes used by the stream job
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result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[4], job_id='commit-node4')
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[1], top=self.imgs[3], job_id='commit-node1')
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self.assert_qmp(result, 'error/class', 'GenericError')
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# This fails because it needs to modify the backing string in node2, which is blocked
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result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[0], top=self.imgs[1], job_id='commit-node0')
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self.assert_qmp(result, 'error/class', 'GenericError')
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self.wait_until_completed(drive='stream-node4')
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self.assert_no_active_block_jobs()
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# Similar to test_overlapping_1, but with block-commit
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# blocking the other jobs
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def test_overlapping_2(self):
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self.assertLessEqual(9, self.num_imgs)
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self.assert_no_active_block_jobs()
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# Set a speed limit to make sure that this job blocks the rest
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result = self.vm.qmp('block-commit', device='drive0', top=self.imgs[5], base=self.imgs[3], job_id='commit-node3', speed=1024*1024)
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3')
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-stream', device='node6', base=self.imgs[2], job_id='stream-node6')
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-stream', device='node4', base=self.imgs[2], job_id='stream-node4')
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self.assert_qmp(result, 'error/class', 'GenericError')
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result = self.vm.qmp('block-stream', device='node6', base=self.imgs[4], job_id='stream-node6-v2')
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self.assert_qmp(result, 'error/class', 'GenericError')
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# This fails because block-commit needs to block node6, the overlay of the 'top' image
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result = self.vm.qmp('block-stream', device='node7', base=self.imgs[5], job_id='stream-node6-v3')
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self.assert_qmp(result, 'error/class', 'GenericError')
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# This fails because block-commit currently blocks the active layer even if it's not used
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result = self.vm.qmp('block-stream', device='drive0', base=self.imgs[5], job_id='stream-drive0')
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self.assert_qmp(result, 'error/class', 'GenericError')
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self.wait_until_completed(drive='commit-node3')
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# Similar to test_overlapping_2, but here block-commit doesn't use the 'top' parameter.
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# Internally this uses a mirror block job, hence the separate test case.
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def test_overlapping_3(self):
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self.assertLessEqual(8, self.num_imgs)
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self.assert_no_active_block_jobs()
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# Set a speed limit to make sure that this job blocks the rest
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result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[3], job_id='commit-drive0', speed=1024*1024)
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self.assert_qmp(result, 'return', {})
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result = self.vm.qmp('block-stream', device='node5', base=self.imgs[3], job_id='stream-node6')
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self.assert_qmp(result, 'error/class', 'GenericError')
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event = self.vm.get_qmp_event(wait=True)
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self.assertEqual(event['event'], 'BLOCK_JOB_READY')
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self.assert_qmp(event, 'data/device', 'commit-drive0')
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self.assert_qmp(event, 'data/type', 'commit')
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self.assert_qmp_absent(event, 'data/error')
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result = self.vm.qmp('block-job-complete', device='commit-drive0')
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self.assert_qmp(result, 'return', {})
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self.wait_until_completed(drive='commit-drive0')
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# Test a block-stream and a block-commit job in parallel
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def test_stream_commit(self):
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self.assertLessEqual(8, self.num_imgs)
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self.assert_no_active_block_jobs()
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# Stream from node0 into node2
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result = self.vm.qmp('block-stream', device='node2', job_id='node2')
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self.assert_qmp(result, 'return', {})
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# Commit from the active layer into node3
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result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[3])
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self.assert_qmp(result, 'return', {})
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# Wait for all jobs to be finished.
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pending_jobs = ['node2', 'drive0']
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while len(pending_jobs) > 0:
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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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node_name = self.dictpath(event, 'data/device')
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self.assertTrue(node_name in pending_jobs)
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self.assert_qmp_absent(event, 'data/error')
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pending_jobs.remove(node_name)
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if event['event'] == 'BLOCK_JOB_READY':
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self.assert_qmp(event, 'data/device', 'drive0')
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self.assert_qmp(event, 'data/type', 'commit')
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self.assert_qmp_absent(event, 'data/error')
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self.assertTrue('drive0' in pending_jobs)
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self.vm.qmp('block-job-complete', device='drive0')
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self.assert_no_active_block_jobs()
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class TestSmallerBackingFile(iotests.QMPTestCase):
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backing_len = 1 * 1024 * 1024 # MB
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image_len = 2 * backing_len
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def setUp(self):
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iotests.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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# 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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self.wait_until_completed()
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self.assert_no_active_block_jobs()
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self.vm.shutdown()
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class TestErrors(iotests.QMPTestCase):
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image_len = 2 * 1024 * 1024 # MB
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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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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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[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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[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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class TestEIO(TestErrors):
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def setUp(self):
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self.blkdebug_file = backing_img + ".blkdebug"
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iotests.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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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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def test_report(self):
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self.assert_no_active_block_jobs()
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result = self.vm.qmp('block-stream', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
completed = False
|
|
error = False
|
|
while not completed:
|
|
for event in self.vm.get_qmp_events(wait=True):
|
|
if event['event'] == 'BLOCK_JOB_ERROR':
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/operation', 'read')
|
|
error = True
|
|
elif event['event'] == 'BLOCK_JOB_COMPLETED':
|
|
self.assertTrue(error, 'job completed unexpectedly')
|
|
self.assert_qmp(event, 'data/type', 'stream')
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/error', 'Input/output error')
|
|
self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
|
|
self.assert_qmp(event, 'data/len', self.image_len)
|
|
completed = True
|
|
|
|
self.assert_no_active_block_jobs()
|
|
self.vm.shutdown()
|
|
|
|
def test_ignore(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0', on_error='ignore')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
error = False
|
|
completed = False
|
|
while not completed:
|
|
for event in self.vm.get_qmp_events(wait=True):
|
|
if event['event'] == 'BLOCK_JOB_ERROR':
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/operation', 'read')
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/paused', False)
|
|
error = True
|
|
elif event['event'] == 'BLOCK_JOB_COMPLETED':
|
|
self.assertTrue(error, 'job completed unexpectedly')
|
|
self.assert_qmp(event, 'data/type', 'stream')
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/error', 'Input/output error')
|
|
self.assert_qmp(event, 'data/offset', self.image_len)
|
|
self.assert_qmp(event, 'data/len', self.image_len)
|
|
completed = True
|
|
|
|
self.assert_no_active_block_jobs()
|
|
self.vm.shutdown()
|
|
|
|
def test_stop(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0', on_error='stop')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
error = False
|
|
completed = False
|
|
while not completed:
|
|
for event in self.vm.get_qmp_events(wait=True):
|
|
if event['event'] == 'BLOCK_JOB_ERROR':
|
|
error = True
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/operation', 'read')
|
|
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/paused', True)
|
|
self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
|
|
self.assert_qmp(result, 'return[0]/io-status', 'failed')
|
|
|
|
result = self.vm.qmp('block-job-resume', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
result = self.vm.qmp('query-block-jobs')
|
|
if result == {'return': []}:
|
|
# Race; likely already finished. Check.
|
|
continue
|
|
self.assert_qmp(result, 'return[0]/paused', False)
|
|
self.assert_qmp(result, 'return[0]/io-status', 'ok')
|
|
elif event['event'] == 'BLOCK_JOB_COMPLETED':
|
|
self.assertTrue(error, 'job completed unexpectedly')
|
|
self.assert_qmp(event, 'data/type', 'stream')
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp_absent(event, 'data/error')
|
|
self.assert_qmp(event, 'data/offset', self.image_len)
|
|
self.assert_qmp(event, 'data/len', self.image_len)
|
|
completed = True
|
|
|
|
self.assert_no_active_block_jobs()
|
|
self.vm.shutdown()
|
|
|
|
def test_enospc(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
completed = False
|
|
error = False
|
|
while not completed:
|
|
for event in self.vm.get_qmp_events(wait=True):
|
|
if event['event'] == 'BLOCK_JOB_ERROR':
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/operation', 'read')
|
|
error = True
|
|
elif event['event'] == 'BLOCK_JOB_COMPLETED':
|
|
self.assertTrue(error, 'job completed unexpectedly')
|
|
self.assert_qmp(event, 'data/type', 'stream')
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/error', 'Input/output error')
|
|
self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
|
|
self.assert_qmp(event, 'data/len', self.image_len)
|
|
completed = True
|
|
|
|
self.assert_no_active_block_jobs()
|
|
self.vm.shutdown()
|
|
|
|
class TestENOSPC(TestErrors):
|
|
def setUp(self):
|
|
self.blkdebug_file = backing_img + ".blkdebug"
|
|
iotests.create_image(backing_img, TestErrors.image_len)
|
|
self.create_blkdebug_file(self.blkdebug_file, "read_aio", 28)
|
|
qemu_img('create', '-f', iotests.imgfmt,
|
|
'-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
|
|
% (self.blkdebug_file, backing_img),
|
|
test_img)
|
|
self.vm = iotests.VM().add_drive(test_img)
|
|
self.vm.launch()
|
|
|
|
def tearDown(self):
|
|
self.vm.shutdown()
|
|
os.remove(test_img)
|
|
os.remove(backing_img)
|
|
os.remove(self.blkdebug_file)
|
|
|
|
def test_enospc(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
error = False
|
|
completed = False
|
|
while not completed:
|
|
for event in self.vm.get_qmp_events(wait=True):
|
|
if event['event'] == 'BLOCK_JOB_ERROR':
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp(event, 'data/operation', 'read')
|
|
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/paused', True)
|
|
self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
|
|
self.assert_qmp(result, 'return[0]/io-status', 'nospace')
|
|
|
|
result = self.vm.qmp('block-job-resume', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/paused', False)
|
|
self.assert_qmp(result, 'return[0]/io-status', 'ok')
|
|
error = True
|
|
elif event['event'] == 'BLOCK_JOB_COMPLETED':
|
|
self.assertTrue(error, 'job completed unexpectedly')
|
|
self.assert_qmp(event, 'data/type', 'stream')
|
|
self.assert_qmp(event, 'data/device', 'drive0')
|
|
self.assert_qmp_absent(event, 'data/error')
|
|
self.assert_qmp(event, 'data/offset', self.image_len)
|
|
self.assert_qmp(event, 'data/len', self.image_len)
|
|
completed = True
|
|
|
|
self.assert_no_active_block_jobs()
|
|
self.vm.shutdown()
|
|
|
|
class TestStreamStop(iotests.QMPTestCase):
|
|
image_len = 8 * 1024 * 1024 * 1024 # GB
|
|
|
|
def setUp(self):
|
|
qemu_img('create', backing_img, str(TestStreamStop.image_len))
|
|
qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
|
|
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
|
|
qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
|
|
self.vm = iotests.VM().add_drive("blkdebug::" + test_img)
|
|
self.vm.launch()
|
|
|
|
def tearDown(self):
|
|
self.vm.shutdown()
|
|
os.remove(test_img)
|
|
os.remove(backing_img)
|
|
|
|
def test_stream_stop(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
self.vm.pause_drive('drive0')
|
|
result = self.vm.qmp('block-stream', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
time.sleep(0.1)
|
|
events = self.vm.get_qmp_events(wait=False)
|
|
self.assertEqual(events, [], 'unexpected QMP event: %s' % events)
|
|
|
|
self.cancel_and_wait(resume=True)
|
|
|
|
class TestSetSpeed(iotests.QMPTestCase):
|
|
image_len = 80 * 1024 * 1024 # MB
|
|
|
|
def setUp(self):
|
|
qemu_img('create', backing_img, str(TestSetSpeed.image_len))
|
|
qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
|
|
qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
|
|
qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
|
|
self.vm = iotests.VM().add_drive('blkdebug::' + test_img)
|
|
self.vm.launch()
|
|
|
|
def tearDown(self):
|
|
self.vm.shutdown()
|
|
os.remove(test_img)
|
|
os.remove(backing_img)
|
|
|
|
# This is a short performance test which is not run by default.
|
|
# Invoke "IMGFMT=qed ./030 TestSetSpeed.perf_test_throughput"
|
|
def perf_test_throughput(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
self.wait_until_completed()
|
|
|
|
self.assert_no_active_block_jobs()
|
|
|
|
def test_set_speed(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
self.vm.pause_drive('drive0')
|
|
result = self.vm.qmp('block-stream', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
# Default speed is 0
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/device', 'drive0')
|
|
self.assert_qmp(result, 'return[0]/speed', 0)
|
|
|
|
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
# Ensure the speed we set was accepted
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/device', 'drive0')
|
|
self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024)
|
|
|
|
self.cancel_and_wait(resume=True)
|
|
self.vm.pause_drive('drive0')
|
|
|
|
# Check setting speed in block-stream works
|
|
result = self.vm.qmp('block-stream', device='drive0', speed=4 * 1024 * 1024)
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
result = self.vm.qmp('query-block-jobs')
|
|
self.assert_qmp(result, 'return[0]/device', 'drive0')
|
|
self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024)
|
|
|
|
self.cancel_and_wait(resume=True)
|
|
|
|
def test_set_speed_invalid(self):
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0', speed=-1)
|
|
self.assert_qmp(result, 'error/class', 'GenericError')
|
|
|
|
self.assert_no_active_block_jobs()
|
|
|
|
result = self.vm.qmp('block-stream', device='drive0')
|
|
self.assert_qmp(result, 'return', {})
|
|
|
|
result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
|
|
self.assert_qmp(result, 'error/class', 'GenericError')
|
|
|
|
self.cancel_and_wait()
|
|
|
|
if __name__ == '__main__':
|
|
iotests.main(supported_fmts=['qcow2', 'qed'])
|