tests/qemu-iotests/030

   1 #!/usr/bin/env python
   2 #
   3 # Tests for image streaming.
   4 #
   5 # Copyright (C) 2012 IBM Corp.
   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
  21 import time
  22 import os
  23 import iotests
  24 from iotests import qemu_img, qemu_io
  25
  26 backing_img = os.path.join(iotests.test_dir, 'backing.img')
  27 mid_img = os.path.join(iotests.test_dir, 'mid.img')
  28 test_img = os.path.join(iotests.test_dir, 'test.img')
  29
  30 class TestSingleDrive(iotests.QMPTestCase):
  31     image_len = 1 * 1024 * 1024 # MB
  32
  33     def setUp(self):
  34         iotests.create_image(backing_img, TestSingleDrive.image_len)
  35         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, mid_img)
  36         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % mid_img, test_img)
  37         qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 512', backing_img)
  38         qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 524288 512', mid_img)
  39         self.vm = iotests.VM().add_drive("blkdebug::" + test_img, "backing.node-name=mid")
  40         self.vm.launch()
  41
  42     def tearDown(self):
  43         self.vm.shutdown()
  44         os.remove(test_img)
  45         os.remove(mid_img)
  46         os.remove(backing_img)
  47
  48     def test_stream(self):
  49         self.assert_no_active_block_jobs()
  50
  51         result = self.vm.qmp('block-stream', device='drive0')
  52         self.assert_qmp(result, 'return', {})
  53
  54         self.wait_until_completed()
  55
  56         self.assert_no_active_block_jobs()
  57         self.vm.shutdown()
  58
  59         self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
  60                          qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
  61                          'image file map does not match backing file after streaming')
  62
  63     def test_stream_intermediate(self):
  64         self.assert_no_active_block_jobs()
  65
  66         self.assertNotEqual(qemu_io('-f', 'raw', '-rU', '-c', 'map', backing_img),
  67                             qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', mid_img),
  68                             'image file map matches backing file before streaming')
  69
  70         result = self.vm.qmp('block-stream', device='mid', job_id='stream-mid')
  71         self.assert_qmp(result, 'return', {})
  72
  73         self.wait_until_completed(drive='stream-mid')
  74
  75         self.assert_no_active_block_jobs()
  76         self.vm.shutdown()
  77
  78         self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
  79                          qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
  80                          'image file map does not match backing file after streaming')
  81
  82     def test_stream_pause(self):
  83         self.assert_no_active_block_jobs()
  84
  85         self.vm.pause_drive('drive0')
  86         result = self.vm.qmp('block-stream', device='drive0')
  87         self.assert_qmp(result, 'return', {})
  88
  89         self.pause_job('drive0', wait=False)
  90         self.vm.resume_drive('drive0')
  91         self.pause_wait('drive0')
  92
  93         result = self.vm.qmp('query-block-jobs')
  94         offset = self.dictpath(result, 'return[0]/offset')
  95
  96         time.sleep(0.5)
  97         result = self.vm.qmp('query-block-jobs')
  98         self.assert_qmp(result, 'return[0]/offset', offset)
  99
 100         result = self.vm.qmp('block-job-resume', device='drive0')
 101         self.assert_qmp(result, 'return', {})
 102
 103         self.wait_until_completed()
 104
 105         self.assert_no_active_block_jobs()
 106         self.vm.shutdown()
 107
 108         self.assertEqual(qemu_io('-f', 'raw', '-c', 'map', backing_img),
 109                          qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
 110                          'image file map does not match backing file after streaming')
 111
 112     def test_stream_no_op(self):
 113         self.assert_no_active_block_jobs()
 114
 115         # The image map is empty before the operation
 116         empty_map = qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', test_img)
 117
 118         # This is a no-op: no data should ever be copied from the base image
 119         result = self.vm.qmp('block-stream', device='drive0', base=mid_img)
 120         self.assert_qmp(result, 'return', {})
 121
 122         self.wait_until_completed()
 123
 124         self.assert_no_active_block_jobs()
 125         self.vm.shutdown()
 126
 127         self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
 128                          empty_map, 'image file map changed after a no-op')
 129
 130     def test_stream_partial(self):
 131         self.assert_no_active_block_jobs()
 132
 133         result = self.vm.qmp('block-stream', device='drive0', base=backing_img)
 134         self.assert_qmp(result, 'return', {})
 135
 136         self.wait_until_completed()
 137
 138         self.assert_no_active_block_jobs()
 139         self.vm.shutdown()
 140
 141         self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img),
 142                          qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img),
 143                          'image file map does not match backing file after streaming')
 144
 145     def test_device_not_found(self):
 146         result = self.vm.qmp('block-stream', device='nonexistent')
 147         self.assert_qmp(result, 'error/class', 'GenericError')
 148
 149     def test_job_id_missing(self):
 150         result = self.vm.qmp('block-stream', device='mid')
 151         self.assert_qmp(result, 'error/class', 'GenericError')
 152
 153
 154 class TestParallelOps(iotests.QMPTestCase):
 155     num_ops = 4 # Number of parallel block-stream operations
 156     num_imgs = num_ops * 2 + 1
 157     image_len = num_ops * 512 * 1024
 158     imgs = []
 159
 160     def setUp(self):
 161         opts = []
 162         self.imgs = []
 163
 164         # Initialize file names and command-line options
 165         for i in range(self.num_imgs):
 166             img_depth = self.num_imgs - i - 1
 167             opts.append("backing." * img_depth + "node-name=node%d" % i)
 168             self.imgs.append(os.path.join(iotests.test_dir, 'img-%d.img' % i))
 169
 170         # Create all images
 171         iotests.create_image(self.imgs[0], self.image_len)
 172         for i in range(1, self.num_imgs):
 173             qemu_img('create', '-f', iotests.imgfmt,
 174                      '-o', 'backing_file=%s' % self.imgs[i-1], self.imgs[i])
 175
 176         # Put data into the images we are copying data from
 177         odd_img_indexes = [x for x in reversed(range(self.num_imgs)) if x % 2 == 1]
 178         for i in range(len(odd_img_indexes)):
 179             # Alternate between 256KB and 512KB.
 180             # This way jobs will not finish in the same order they were created
 181             num_kb = 256 + 256 * (i % 2)
 182             qemu_io('-f', iotests.imgfmt,
 183                     '-c', 'write -P 0xFF %dk %dk' % (i * 512, num_kb),
 184                     self.imgs[odd_img_indexes[i]])
 185
 186         # Attach the drive to the VM
 187         self.vm = iotests.VM()
 188         self.vm.add_drive(self.imgs[-1], ','.join(opts))
 189         self.vm.launch()
 190
 191     def tearDown(self):
 192         self.vm.shutdown()
 193         for img in self.imgs:
 194             os.remove(img)
 195
 196     # Test that it's possible to run several block-stream operations
 197     # in parallel in the same snapshot chain
 198     def test_stream_parallel(self):
 199         self.assert_no_active_block_jobs()
 200
 201         # Check that the maps don't match before the streaming operations
 202         for i in range(2, self.num_imgs, 2):
 203             self.assertNotEqual(qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[i]),
 204                                 qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[i-1]),
 205                                 'image file map matches backing file before streaming')
 206
 207         # Create all streaming jobs
 208         pending_jobs = []
 209         for i in range(2, self.num_imgs, 2):
 210             node_name = 'node%d' % i
 211             job_id = 'stream-%s' % node_name
 212             pending_jobs.append(job_id)
 213             result = self.vm.qmp('block-stream', device=node_name, job_id=job_id, base=self.imgs[i-2], speed=512*1024)
 214             self.assert_qmp(result, 'return', {})
 215
 216         # Wait for all jobs to be finished.
 217         while len(pending_jobs) > 0:
 218             for event in self.vm.get_qmp_events(wait=True):
 219                 if event['event'] == 'BLOCK_JOB_COMPLETED':
 220                     job_id = self.dictpath(event, 'data/device')
 221                     self.assertTrue(job_id in pending_jobs)
 222                     self.assert_qmp_absent(event, 'data/error')
 223                     pending_jobs.remove(job_id)
 224
 225         self.assert_no_active_block_jobs()
 226         self.vm.shutdown()
 227
 228         # Check that all maps match now
 229         for i in range(2, self.num_imgs, 2):
 230             self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i]),
 231                              qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i-1]),
 232                              'image file map does not match backing file after streaming')
 233
 234     # Test that it's not possible to perform two block-stream
 235     # operations if there are nodes involved in both.
 236     def test_overlapping_1(self):
 237         self.assert_no_active_block_jobs()
 238
 239         # Set a speed limit to make sure that this job blocks the rest
 240         result = self.vm.qmp('block-stream', device='node4', job_id='stream-node4', base=self.imgs[1], speed=1024*1024)
 241         self.assert_qmp(result, 'return', {})
 242
 243         result = self.vm.qmp('block-stream', device='node5', job_id='stream-node5', base=self.imgs[2])
 244         self.assert_qmp(result, 'error/class', 'GenericError')
 245
 246         result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3', base=self.imgs[2])
 247         self.assert_qmp(result, 'error/class', 'GenericError')
 248
 249         result = self.vm.qmp('block-stream', device='node4', job_id='stream-node4-v2')
 250         self.assert_qmp(result, 'error/class', 'GenericError')
 251
 252         # block-commit should also fail if it touches nodes used by the stream job
 253         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[4], job_id='commit-node4')
 254         self.assert_qmp(result, 'error/class', 'GenericError')
 255
 256         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[1], top=self.imgs[3], job_id='commit-node1')
 257         self.assert_qmp(result, 'error/class', 'GenericError')
 258
 259         # This fails because it needs to modify the backing string in node2, which is blocked
 260         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[0], top=self.imgs[1], job_id='commit-node0')
 261         self.assert_qmp(result, 'error/class', 'GenericError')
 262
 263         self.wait_until_completed(drive='stream-node4')
 264         self.assert_no_active_block_jobs()
 265
 266     # Similar to test_overlapping_1, but with block-commit
 267     # blocking the other jobs
 268     def test_overlapping_2(self):
 269         self.assertLessEqual(9, self.num_imgs)
 270         self.assert_no_active_block_jobs()
 271
 272         # Set a speed limit to make sure that this job blocks the rest
 273         result = self.vm.qmp('block-commit', device='drive0', top=self.imgs[5], base=self.imgs[3], job_id='commit-node3', speed=1024*1024)
 274         self.assert_qmp(result, 'return', {})
 275
 276         result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3')
 277         self.assert_qmp(result, 'error/class', 'GenericError')
 278
 279         result = self.vm.qmp('block-stream', device='node6', base=self.imgs[2], job_id='stream-node6')
 280         self.assert_qmp(result, 'error/class', 'GenericError')
 281
 282         result = self.vm.qmp('block-stream', device='node4', base=self.imgs[2], job_id='stream-node4')
 283         self.assert_qmp(result, 'error/class', 'GenericError')
 284
 285         result = self.vm.qmp('block-stream', device='node6', base=self.imgs[4], job_id='stream-node6-v2')
 286         self.assert_qmp(result, 'error/class', 'GenericError')
 287
 288         # This fails because block-commit currently blocks the active layer even if it's not used
 289         result = self.vm.qmp('block-stream', device='drive0', base=self.imgs[5], job_id='stream-drive0')
 290         self.assert_qmp(result, 'error/class', 'GenericError')
 291
 292         self.wait_until_completed(drive='commit-node3')
 293
 294     # Similar to test_overlapping_2, but here block-commit doesn't use the 'top' parameter.
 295     # Internally this uses a mirror block job, hence the separate test case.
 296     def test_overlapping_3(self):
 297         self.assertLessEqual(8, self.num_imgs)
 298         self.assert_no_active_block_jobs()
 299
 300         # Set a speed limit to make sure that this job blocks the rest
 301         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[3], job_id='commit-drive0', speed=1024*1024)
 302         self.assert_qmp(result, 'return', {})
 303
 304         result = self.vm.qmp('block-stream', device='node5', base=self.imgs[3], job_id='stream-node6')
 305         self.assert_qmp(result, 'error/class', 'GenericError')
 306
 307         event = self.vm.event_wait(name='BLOCK_JOB_READY')
 308         self.assert_qmp(event, 'data/device', 'commit-drive0')
 309         self.assert_qmp(event, 'data/type', 'commit')
 310         self.assert_qmp_absent(event, 'data/error')
 311
 312         result = self.vm.qmp('block-job-complete', device='commit-drive0')
 313         self.assert_qmp(result, 'return', {})
 314
 315         self.wait_until_completed(drive='commit-drive0')
 316
 317     # In this case the base node of the stream job is the same as the
 318     # top node of commit job. Since block-commit removes the top node
 319     # when it finishes, this is not allowed.
 320     def test_overlapping_4(self):
 321         self.assert_no_active_block_jobs()
 322
 323         # Commit from node2 into node0
 324         result = self.vm.qmp('block-commit', device='drive0', top=self.imgs[2], base=self.imgs[0])
 325         self.assert_qmp(result, 'return', {})
 326
 327         # Stream from node2 into node4
 328         result = self.vm.qmp('block-stream', device='node4', base_node='node2', job_id='node4')
 329         self.assert_qmp(result, 'error/class', 'GenericError')
 330
 331         self.wait_until_completed()
 332         self.assert_no_active_block_jobs()
 333
 334     # Test a block-stream and a block-commit job in parallel
 335     # Here the stream job is supposed to finish quickly in order to reproduce
 336     # the scenario that triggers the bug fixed in 3d5d319e1221 and 1a63a907507
 337     def test_stream_commit_1(self):
 338         self.assertLessEqual(8, self.num_imgs)
 339         self.assert_no_active_block_jobs()
 340
 341         # Stream from node0 into node2
 342         result = self.vm.qmp('block-stream', device='node2', base_node='node0', job_id='node2')
 343         self.assert_qmp(result, 'return', {})
 344
 345         # Commit from the active layer into node3
 346         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[3])
 347         self.assert_qmp(result, 'return', {})
 348
 349         # Wait for all jobs to be finished.
 350         pending_jobs = ['node2', 'drive0']
 351         while len(pending_jobs) > 0:
 352             for event in self.vm.get_qmp_events(wait=True):
 353                 if event['event'] == 'BLOCK_JOB_COMPLETED':
 354                     node_name = self.dictpath(event, 'data/device')
 355                     self.assertTrue(node_name in pending_jobs)
 356                     self.assert_qmp_absent(event, 'data/error')
 357                     pending_jobs.remove(node_name)
 358                 if event['event'] == 'BLOCK_JOB_READY':
 359                     self.assert_qmp(event, 'data/device', 'drive0')
 360                     self.assert_qmp(event, 'data/type', 'commit')
 361                     self.assert_qmp_absent(event, 'data/error')
 362                     self.assertTrue('drive0' in pending_jobs)
 363                     self.vm.qmp('block-job-complete', device='drive0')
 364
 365         self.assert_no_active_block_jobs()
 366
 367     # This is similar to test_stream_commit_1 but both jobs are slowed
 368     # down so they can run in parallel for a little while.
 369     def test_stream_commit_2(self):
 370         self.assertLessEqual(8, self.num_imgs)
 371         self.assert_no_active_block_jobs()
 372
 373         # Stream from node0 into node4
 374         result = self.vm.qmp('block-stream', device='node4', base_node='node0', job_id='node4', speed=1024*1024)
 375         self.assert_qmp(result, 'return', {})
 376
 377         # Commit from the active layer into node5
 378         result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[5], speed=1024*1024)
 379         self.assert_qmp(result, 'return', {})
 380
 381         # Wait for all jobs to be finished.
 382         pending_jobs = ['node4', 'drive0']
 383         while len(pending_jobs) > 0:
 384             for event in self.vm.get_qmp_events(wait=True):
 385                 if event['event'] == 'BLOCK_JOB_COMPLETED':
 386                     node_name = self.dictpath(event, 'data/device')
 387                     self.assertTrue(node_name in pending_jobs)
 388                     self.assert_qmp_absent(event, 'data/error')
 389                     pending_jobs.remove(node_name)
 390                 if event['event'] == 'BLOCK_JOB_READY':
 391                     self.assert_qmp(event, 'data/device', 'drive0')
 392                     self.assert_qmp(event, 'data/type', 'commit')
 393                     self.assert_qmp_absent(event, 'data/error')
 394                     self.assertTrue('drive0' in pending_jobs)
 395                     self.vm.qmp('block-job-complete', device='drive0')
 396
 397         self.assert_no_active_block_jobs()
 398
 399     # Test the base_node parameter
 400     def test_stream_base_node_name(self):
 401         self.assert_no_active_block_jobs()
 402
 403         self.assertNotEqual(qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[4]),
 404                             qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[3]),
 405                             'image file map matches backing file before streaming')
 406
 407         # Error: the base node does not exist
 408         result = self.vm.qmp('block-stream', device='node4', base_node='none', job_id='stream')
 409         self.assert_qmp(result, 'error/class', 'GenericError')
 410
 411         # Error: the base node is not a backing file of the top node
 412         result = self.vm.qmp('block-stream', device='node4', base_node='node6', job_id='stream')
 413         self.assert_qmp(result, 'error/class', 'GenericError')
 414
 415         # Error: the base node is the same as the top node
 416         result = self.vm.qmp('block-stream', device='node4', base_node='node4', job_id='stream')
 417         self.assert_qmp(result, 'error/class', 'GenericError')
 418
 419         # Error: cannot specify 'base' and 'base-node' at the same time
 420         result = self.vm.qmp('block-stream', device='node4', base=self.imgs[2], base_node='node2', job_id='stream')
 421         self.assert_qmp(result, 'error/class', 'GenericError')
 422
 423         # Success: the base node is a backing file of the top node
 424         result = self.vm.qmp('block-stream', device='node4', base_node='node2', job_id='stream')
 425         self.assert_qmp(result, 'return', {})
 426
 427         self.wait_until_completed(drive='stream')
 428
 429         self.assert_no_active_block_jobs()
 430         self.vm.shutdown()
 431
 432         self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[4]),
 433                          qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[3]),
 434                          'image file map matches backing file after streaming')
 435
 436 class TestQuorum(iotests.QMPTestCase):
 437     num_children = 3
 438     children = []
 439     backing = []
 440
 441     def setUp(self):
 442         opts = ['driver=quorum', 'vote-threshold=2']
 443
 444         # Initialize file names and command-line options
 445         for i in range(self.num_children):
 446             child_img = os.path.join(iotests.test_dir, 'img-%d.img' % i)
 447             backing_img = os.path.join(iotests.test_dir, 'backing-%d.img' % i)
 448             self.children.append(child_img)
 449             self.backing.append(backing_img)
 450             qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M')
 451             qemu_io('-f', iotests.imgfmt,
 452                     '-c', 'write -P 0x55 0 1024', backing_img)
 453             qemu_img('create', '-f', iotests.imgfmt,
 454                      '-o', 'backing_file=%s' % backing_img, child_img)
 455             opts.append("children.%d.file.filename=%s" % (i, child_img))
 456             opts.append("children.%d.node-name=node%d" % (i, i))
 457
 458         # Attach the drive to the VM
 459         self.vm = iotests.VM()
 460         self.vm.add_drive(path = None, opts = ','.join(opts))
 461         self.vm.launch()
 462
 463     def tearDown(self):
 464         self.vm.shutdown()
 465         for img in self.children:
 466             os.remove(img)
 467         for img in self.backing:
 468             os.remove(img)
 469
 470     def test_stream_quorum(self):
 471         if not iotests.supports_quorum():
 472             return
 473
 474         self.assertNotEqual(qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.children[0]),
 475                             qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.backing[0]),
 476                             'image file map matches backing file before streaming')
 477
 478         self.assert_no_active_block_jobs()
 479
 480         result = self.vm.qmp('block-stream', device='node0', job_id='stream-node0')
 481         self.assert_qmp(result, 'return', {})
 482
 483         self.wait_until_completed(drive='stream-node0')
 484
 485         self.assert_no_active_block_jobs()
 486         self.vm.shutdown()
 487
 488         self.assertEqual(qemu_io('-f', iotests.imgfmt, '-c', 'map', self.children[0]),
 489                          qemu_io('-f', iotests.imgfmt, '-c', 'map', self.backing[0]),
 490                          'image file map does not match backing file after streaming')
 491
 492 class TestSmallerBackingFile(iotests.QMPTestCase):
 493     backing_len = 1 * 1024 * 1024 # MB
 494     image_len = 2 * backing_len
 495
 496     def setUp(self):
 497         iotests.create_image(backing_img, self.backing_len)
 498         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img, str(self.image_len))
 499         self.vm = iotests.VM().add_drive(test_img)
 500         self.vm.launch()
 501
 502     # If this hangs, then you are missing a fix to complete streaming when the
 503     # end of the backing file is reached.
 504     def test_stream(self):
 505         self.assert_no_active_block_jobs()
 506
 507         result = self.vm.qmp('block-stream', device='drive0')
 508         self.assert_qmp(result, 'return', {})
 509
 510         self.wait_until_completed()
 511
 512         self.assert_no_active_block_jobs()
 513         self.vm.shutdown()
 514
 515 class TestErrors(iotests.QMPTestCase):
 516     image_len = 2 * 1024 * 1024 # MB
 517
 518     # this should match STREAM_BUFFER_SIZE/512 in block/stream.c
 519     STREAM_BUFFER_SIZE = 512 * 1024
 520
 521     def create_blkdebug_file(self, name, event, errno):
 522         file = open(name, 'w')
 523         file.write('''
 524 [inject-error]
 525 state = "1"
 526 event = "%s"
 527 errno = "%d"
 528 immediately = "off"
 529 once = "on"
 530 sector = "%d"
 531
 532 [set-state]
 533 state = "1"
 534 event = "%s"
 535 new_state = "2"
 536
 537 [set-state]
 538 state = "2"
 539 event = "%s"
 540 new_state = "1"
 541 ''' % (event, errno, self.STREAM_BUFFER_SIZE // 512, event, event))
 542         file.close()
 543
 544 class TestEIO(TestErrors):
 545     def setUp(self):
 546         self.blkdebug_file = backing_img + ".blkdebug"
 547         iotests.create_image(backing_img, TestErrors.image_len)
 548         self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5)
 549         qemu_img('create', '-f', iotests.imgfmt,
 550                  '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
 551                        % (self.blkdebug_file, backing_img),
 552                  test_img)
 553         self.vm = iotests.VM().add_drive(test_img)
 554         self.vm.launch()
 555
 556     def tearDown(self):
 557         self.vm.shutdown()
 558         os.remove(test_img)
 559         os.remove(backing_img)
 560         os.remove(self.blkdebug_file)
 561
 562     def test_report(self):
 563         self.assert_no_active_block_jobs()
 564
 565         result = self.vm.qmp('block-stream', device='drive0')
 566         self.assert_qmp(result, 'return', {})
 567
 568         completed = False
 569         error = False
 570         while not completed:
 571             for event in self.vm.get_qmp_events(wait=True):
 572                 if event['event'] == 'BLOCK_JOB_ERROR':
 573                     self.assert_qmp(event, 'data/device', 'drive0')
 574                     self.assert_qmp(event, 'data/operation', 'read')
 575                     error = True
 576                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 577                     self.assertTrue(error, 'job completed unexpectedly')
 578                     self.assert_qmp(event, 'data/type', 'stream')
 579                     self.assert_qmp(event, 'data/device', 'drive0')
 580                     self.assert_qmp(event, 'data/error', 'Input/output error')
 581                     self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
 582                     self.assert_qmp(event, 'data/len', self.image_len)
 583                     completed = True
 584                 elif event['event'] == 'JOB_STATUS_CHANGE':
 585                     self.assert_qmp(event, 'data/id', 'drive0')
 586
 587         self.assert_no_active_block_jobs()
 588         self.vm.shutdown()
 589
 590     def test_ignore(self):
 591         self.assert_no_active_block_jobs()
 592
 593         result = self.vm.qmp('block-stream', device='drive0', on_error='ignore')
 594         self.assert_qmp(result, 'return', {})
 595
 596         error = False
 597         completed = False
 598         while not completed:
 599             for event in self.vm.get_qmp_events(wait=True):
 600                 if event['event'] == 'BLOCK_JOB_ERROR':
 601                     error = True
 602                     self.assert_qmp(event, 'data/device', 'drive0')
 603                     self.assert_qmp(event, 'data/operation', 'read')
 604                     result = self.vm.qmp('query-block-jobs')
 605                     if result == {'return': []}:
 606                         # Job finished too quickly
 607                         continue
 608                     self.assert_qmp(result, 'return[0]/paused', False)
 609                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 610                     self.assertTrue(error, 'job completed unexpectedly')
 611                     self.assert_qmp(event, 'data/type', 'stream')
 612                     self.assert_qmp(event, 'data/device', 'drive0')
 613                     self.assert_qmp(event, 'data/error', 'Input/output error')
 614                     self.assert_qmp(event, 'data/offset', self.image_len)
 615                     self.assert_qmp(event, 'data/len', self.image_len)
 616                     completed = True
 617                 elif event['event'] == 'JOB_STATUS_CHANGE':
 618                     self.assert_qmp(event, 'data/id', 'drive0')
 619
 620         self.assert_no_active_block_jobs()
 621         self.vm.shutdown()
 622
 623     def test_stop(self):
 624         self.assert_no_active_block_jobs()
 625
 626         result = self.vm.qmp('block-stream', device='drive0', on_error='stop')
 627         self.assert_qmp(result, 'return', {})
 628
 629         error = False
 630         completed = False
 631         while not completed:
 632             for event in self.vm.get_qmp_events(wait=True):
 633                 if event['event'] == 'BLOCK_JOB_ERROR':
 634                     error = True
 635                     self.assert_qmp(event, 'data/device', 'drive0')
 636                     self.assert_qmp(event, 'data/operation', 'read')
 637
 638                     result = self.vm.qmp('query-block-jobs')
 639                     self.assert_qmp(result, 'return[0]/paused', True)
 640                     self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
 641                     self.assert_qmp(result, 'return[0]/io-status', 'failed')
 642
 643                     result = self.vm.qmp('block-job-resume', device='drive0')
 644                     self.assert_qmp(result, 'return', {})
 645
 646                     result = self.vm.qmp('query-block-jobs')
 647                     if result == {'return': []}:
 648                         # Race; likely already finished. Check.
 649                         continue
 650                     self.assert_qmp(result, 'return[0]/paused', False)
 651                     self.assert_qmp(result, 'return[0]/io-status', 'ok')
 652                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 653                     self.assertTrue(error, 'job completed unexpectedly')
 654                     self.assert_qmp(event, 'data/type', 'stream')
 655                     self.assert_qmp(event, 'data/device', 'drive0')
 656                     self.assert_qmp_absent(event, 'data/error')
 657                     self.assert_qmp(event, 'data/offset', self.image_len)
 658                     self.assert_qmp(event, 'data/len', self.image_len)
 659                     completed = True
 660                 elif event['event'] == 'JOB_STATUS_CHANGE':
 661                     self.assert_qmp(event, 'data/id', 'drive0')
 662
 663         self.assert_no_active_block_jobs()
 664         self.vm.shutdown()
 665
 666     def test_enospc(self):
 667         self.assert_no_active_block_jobs()
 668
 669         result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
 670         self.assert_qmp(result, 'return', {})
 671
 672         completed = False
 673         error = False
 674         while not completed:
 675             for event in self.vm.get_qmp_events(wait=True):
 676                 if event['event'] == 'BLOCK_JOB_ERROR':
 677                     self.assert_qmp(event, 'data/device', 'drive0')
 678                     self.assert_qmp(event, 'data/operation', 'read')
 679                     error = True
 680                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 681                     self.assertTrue(error, 'job completed unexpectedly')
 682                     self.assert_qmp(event, 'data/type', 'stream')
 683                     self.assert_qmp(event, 'data/device', 'drive0')
 684                     self.assert_qmp(event, 'data/error', 'Input/output error')
 685                     self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE)
 686                     self.assert_qmp(event, 'data/len', self.image_len)
 687                     completed = True
 688                 elif event['event'] == 'JOB_STATUS_CHANGE':
 689                     self.assert_qmp(event, 'data/id', 'drive0')
 690
 691         self.assert_no_active_block_jobs()
 692         self.vm.shutdown()
 693
 694 class TestENOSPC(TestErrors):
 695     def setUp(self):
 696         self.blkdebug_file = backing_img + ".blkdebug"
 697         iotests.create_image(backing_img, TestErrors.image_len)
 698         self.create_blkdebug_file(self.blkdebug_file, "read_aio", 28)
 699         qemu_img('create', '-f', iotests.imgfmt,
 700                  '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw'
 701                        % (self.blkdebug_file, backing_img),
 702                  test_img)
 703         self.vm = iotests.VM().add_drive(test_img)
 704         self.vm.launch()
 705
 706     def tearDown(self):
 707         self.vm.shutdown()
 708         os.remove(test_img)
 709         os.remove(backing_img)
 710         os.remove(self.blkdebug_file)
 711
 712     def test_enospc(self):
 713         self.assert_no_active_block_jobs()
 714
 715         result = self.vm.qmp('block-stream', device='drive0', on_error='enospc')
 716         self.assert_qmp(result, 'return', {})
 717
 718         error = False
 719         completed = False
 720         while not completed:
 721             for event in self.vm.get_qmp_events(wait=True):
 722                 if event['event'] == 'BLOCK_JOB_ERROR':
 723                     self.assert_qmp(event, 'data/device', 'drive0')
 724                     self.assert_qmp(event, 'data/operation', 'read')
 725                     error = True
 726
 727                     result = self.vm.qmp('query-block-jobs')
 728                     self.assert_qmp(result, 'return[0]/paused', True)
 729                     self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE)
 730                     self.assert_qmp(result, 'return[0]/io-status', 'nospace')
 731
 732                     result = self.vm.qmp('block-job-resume', device='drive0')
 733                     self.assert_qmp(result, 'return', {})
 734
 735                     result = self.vm.qmp('query-block-jobs')
 736                     if result == {'return': []}:
 737                         # Race; likely already finished. Check.
 738                         continue
 739                     self.assert_qmp(result, 'return[0]/paused', False)
 740                     self.assert_qmp(result, 'return[0]/io-status', 'ok')
 741                 elif event['event'] == 'BLOCK_JOB_COMPLETED':
 742                     self.assertTrue(error, 'job completed unexpectedly')
 743                     self.assert_qmp(event, 'data/type', 'stream')
 744                     self.assert_qmp(event, 'data/device', 'drive0')
 745                     self.assert_qmp_absent(event, 'data/error')
 746                     self.assert_qmp(event, 'data/offset', self.image_len)
 747                     self.assert_qmp(event, 'data/len', self.image_len)
 748                     completed = True
 749                 elif event['event'] == 'JOB_STATUS_CHANGE':
 750                     self.assert_qmp(event, 'data/id', 'drive0')
 751
 752         self.assert_no_active_block_jobs()
 753         self.vm.shutdown()
 754
 755 class TestStreamStop(iotests.QMPTestCase):
 756     image_len = 8 * 1024 * 1024 * 1024 # GB
 757
 758     def setUp(self):
 759         qemu_img('create', backing_img, str(TestStreamStop.image_len))
 760         qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
 761         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 762         qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
 763         self.vm = iotests.VM().add_drive("blkdebug::" + test_img)
 764         self.vm.launch()
 765
 766     def tearDown(self):
 767         self.vm.shutdown()
 768         os.remove(test_img)
 769         os.remove(backing_img)
 770
 771     def test_stream_stop(self):
 772         self.assert_no_active_block_jobs()
 773
 774         self.vm.pause_drive('drive0')
 775         result = self.vm.qmp('block-stream', device='drive0')
 776         self.assert_qmp(result, 'return', {})
 777
 778         time.sleep(0.1)
 779         events = self.vm.get_qmp_events(wait=False)
 780         for e in events:
 781             self.assert_qmp(e, 'event', 'JOB_STATUS_CHANGE')
 782             self.assert_qmp(e, 'data/id', 'drive0')
 783
 784         self.cancel_and_wait(resume=True)
 785
 786 class TestSetSpeed(iotests.QMPTestCase):
 787     image_len = 80 * 1024 * 1024 # MB
 788
 789     def setUp(self):
 790         qemu_img('create', backing_img, str(TestSetSpeed.image_len))
 791         qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img)
 792         qemu_img('create', '-f', iotests.imgfmt, '-o', 'backing_file=%s' % backing_img, test_img)
 793         qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img)
 794         self.vm = iotests.VM().add_drive('blkdebug::' + test_img)
 795         self.vm.launch()
 796
 797     def tearDown(self):
 798         self.vm.shutdown()
 799         os.remove(test_img)
 800         os.remove(backing_img)
 801
 802     # This is a short performance test which is not run by default.
 803     # Invoke "IMGFMT=qed ./030 TestSetSpeed.perf_test_throughput"
 804     def perf_test_throughput(self):
 805         self.assert_no_active_block_jobs()
 806
 807         result = self.vm.qmp('block-stream', device='drive0')
 808         self.assert_qmp(result, 'return', {})
 809
 810         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
 811         self.assert_qmp(result, 'return', {})
 812
 813         self.wait_until_completed()
 814
 815         self.assert_no_active_block_jobs()
 816
 817     def test_set_speed(self):
 818         self.assert_no_active_block_jobs()
 819
 820         self.vm.pause_drive('drive0')
 821         result = self.vm.qmp('block-stream', device='drive0')
 822         self.assert_qmp(result, 'return', {})
 823
 824         # Default speed is 0
 825         result = self.vm.qmp('query-block-jobs')
 826         self.assert_qmp(result, 'return[0]/device', 'drive0')
 827         self.assert_qmp(result, 'return[0]/speed', 0)
 828
 829         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024)
 830         self.assert_qmp(result, 'return', {})
 831
 832         # Ensure the speed we set was accepted
 833         result = self.vm.qmp('query-block-jobs')
 834         self.assert_qmp(result, 'return[0]/device', 'drive0')
 835         self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024)
 836
 837         self.cancel_and_wait(resume=True)
 838         self.vm.pause_drive('drive0')
 839
 840         # Check setting speed in block-stream works
 841         result = self.vm.qmp('block-stream', device='drive0', speed=4 * 1024 * 1024)
 842         self.assert_qmp(result, 'return', {})
 843
 844         result = self.vm.qmp('query-block-jobs')
 845         self.assert_qmp(result, 'return[0]/device', 'drive0')
 846         self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024)
 847
 848         self.cancel_and_wait(resume=True)
 849
 850     def test_set_speed_invalid(self):
 851         self.assert_no_active_block_jobs()
 852
 853         result = self.vm.qmp('block-stream', device='drive0', speed=-1)
 854         self.assert_qmp(result, 'error/class', 'GenericError')
 855
 856         self.assert_no_active_block_jobs()
 857
 858         self.vm.pause_drive('drive0')
 859         result = self.vm.qmp('block-stream', device='drive0')
 860         self.assert_qmp(result, 'return', {})
 861
 862         result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1)
 863         self.assert_qmp(result, 'error/class', 'GenericError')
 864
 865         self.cancel_and_wait(resume=True)
 866
 867 if __name__ == '__main__':
 868     iotests.main(supported_fmts=['qcow2', 'qed'])