| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw backing |
| 3 | # |
| 4 | # Tests for image streaming. |
| 5 | # |
| 6 | # Copyright (C) 2012 IBM Corp. |
| 7 | # |
| 8 | # This program is free software; you can redistribute it and/or modify |
| 9 | # it under the terms of the GNU General Public License as published by |
| 10 | # the Free Software Foundation; either version 2 of the License, or |
| 11 | # (at your option) any later version. |
| 12 | # |
| 13 | # This program is distributed in the hope that it will be useful, |
| 14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | # GNU General Public License for more details. |
| 17 | # |
| 18 | # You should have received a copy of the GNU General Public License |
| 19 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | # |
| 21 | |
| 22 | import time |
| 23 | import os |
| 24 | import iotests |
| 25 | import unittest |
| 26 | from iotests import qemu_img, qemu_io |
| 27 | |
| 28 | backing_img = os.path.join(iotests.test_dir, 'backing.img') |
| 29 | mid_img = os.path.join(iotests.test_dir, 'mid.img') |
| 30 | test_img = os.path.join(iotests.test_dir, 'test.img') |
| 31 | |
| 32 | class TestSingleDrive(iotests.QMPTestCase): |
| 33 | image_len = 1 * 1024 * 1024 # MB |
| 34 | |
| 35 | def setUp(self): |
| 36 | iotests.create_image(backing_img, TestSingleDrive.image_len) |
| 37 | qemu_img('create', '-f', iotests.imgfmt, |
| 38 | '-o', 'backing_file=%s' % backing_img, |
| 39 | '-F', 'raw', mid_img) |
| 40 | qemu_img('create', '-f', iotests.imgfmt, |
| 41 | '-o', 'backing_file=%s' % mid_img, |
| 42 | '-F', iotests.imgfmt, test_img) |
| 43 | qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 512', backing_img) |
| 44 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 524288 512', mid_img) |
| 45 | self.vm = iotests.VM().add_drive("blkdebug::" + test_img, |
| 46 | "backing.node-name=mid," + |
| 47 | "backing.backing.node-name=base") |
| 48 | self.vm.launch() |
| 49 | |
| 50 | def tearDown(self): |
| 51 | self.vm.shutdown() |
| 52 | os.remove(test_img) |
| 53 | os.remove(mid_img) |
| 54 | os.remove(backing_img) |
| 55 | |
| 56 | def test_stream(self): |
| 57 | self.assert_no_active_block_jobs() |
| 58 | |
| 59 | self.vm.cmd('block-stream', device='drive0') |
| 60 | |
| 61 | self.wait_until_completed() |
| 62 | |
| 63 | self.assert_no_active_block_jobs() |
| 64 | self.vm.shutdown() |
| 65 | |
| 66 | self.assertEqual( |
| 67 | qemu_io('-f', 'raw', '-c', 'map', backing_img).stdout, |
| 68 | qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img).stdout, |
| 69 | 'image file map does not match backing file after streaming') |
| 70 | |
| 71 | def test_stream_intermediate(self): |
| 72 | self.assert_no_active_block_jobs() |
| 73 | |
| 74 | self.assertNotEqual( |
| 75 | qemu_io('-f', 'raw', '-rU', '-c', 'map', backing_img).stdout, |
| 76 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', mid_img).stdout, |
| 77 | 'image file map matches backing file before streaming') |
| 78 | |
| 79 | self.vm.cmd('block-stream', device='mid', job_id='stream-mid') |
| 80 | |
| 81 | self.wait_until_completed(drive='stream-mid') |
| 82 | |
| 83 | self.assert_no_active_block_jobs() |
| 84 | self.vm.shutdown() |
| 85 | |
| 86 | self.assertEqual( |
| 87 | qemu_io('-f', 'raw', '-c', 'map', backing_img).stdout, |
| 88 | qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img).stdout, |
| 89 | 'image file map does not match backing file after streaming') |
| 90 | |
| 91 | def test_stream_pause(self): |
| 92 | self.assert_no_active_block_jobs() |
| 93 | |
| 94 | self.vm.pause_drive('drive0') |
| 95 | self.vm.cmd('block-stream', device='drive0') |
| 96 | |
| 97 | self.pause_job('drive0', wait=False) |
| 98 | self.vm.resume_drive('drive0') |
| 99 | self.pause_wait('drive0') |
| 100 | |
| 101 | result = self.vm.qmp('query-block-jobs') |
| 102 | offset = self.dictpath(result, 'return[0]/offset') |
| 103 | |
| 104 | time.sleep(0.5) |
| 105 | result = self.vm.qmp('query-block-jobs') |
| 106 | self.assert_qmp(result, 'return[0]/offset', offset) |
| 107 | |
| 108 | self.vm.cmd('block-job-resume', device='drive0') |
| 109 | |
| 110 | self.wait_until_completed() |
| 111 | |
| 112 | self.assert_no_active_block_jobs() |
| 113 | self.vm.shutdown() |
| 114 | |
| 115 | self.assertEqual( |
| 116 | qemu_io('-f', 'raw', '-c', 'map', backing_img).stdout, |
| 117 | qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img).stdout, |
| 118 | 'image file map does not match backing file after streaming') |
| 119 | |
| 120 | def test_stream_no_op(self): |
| 121 | self.assert_no_active_block_jobs() |
| 122 | |
| 123 | # The image map is empty before the operation |
| 124 | empty_map = qemu_io( |
| 125 | '-f', iotests.imgfmt, '-rU', '-c', 'map', test_img).stdout |
| 126 | |
| 127 | # This is a no-op: no data should ever be copied from the base image |
| 128 | self.vm.cmd('block-stream', device='drive0', base=mid_img) |
| 129 | |
| 130 | self.wait_until_completed() |
| 131 | |
| 132 | self.assert_no_active_block_jobs() |
| 133 | self.vm.shutdown() |
| 134 | |
| 135 | self.assertEqual( |
| 136 | qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img).stdout, |
| 137 | empty_map, 'image file map changed after a no-op') |
| 138 | |
| 139 | def test_stream_partial(self): |
| 140 | self.assert_no_active_block_jobs() |
| 141 | |
| 142 | self.vm.cmd('block-stream', device='drive0', base=backing_img) |
| 143 | |
| 144 | self.wait_until_completed() |
| 145 | |
| 146 | self.assert_no_active_block_jobs() |
| 147 | self.vm.shutdown() |
| 148 | |
| 149 | self.assertEqual( |
| 150 | qemu_io('-f', iotests.imgfmt, '-c', 'map', mid_img).stdout, |
| 151 | qemu_io('-f', iotests.imgfmt, '-c', 'map', test_img).stdout, |
| 152 | 'image file map does not match backing file after streaming') |
| 153 | |
| 154 | def test_device_not_found(self): |
| 155 | result = self.vm.qmp('block-stream', device='nonexistent') |
| 156 | self.assert_qmp(result, 'error/desc', |
| 157 | 'Cannot find device=\'nonexistent\' nor node-name=\'nonexistent\'') |
| 158 | |
| 159 | def test_job_id_missing(self): |
| 160 | result = self.vm.qmp('block-stream', device='mid') |
| 161 | self.assert_qmp(result, 'error/desc', "Invalid job ID ''") |
| 162 | |
| 163 | def test_read_only(self): |
| 164 | # Create a new file that we can attach (we need a read-only top) |
| 165 | with iotests.FilePath('ro-top.img') as ro_top_path: |
| 166 | qemu_img('create', '-f', iotests.imgfmt, ro_top_path, |
| 167 | str(self.image_len)) |
| 168 | |
| 169 | self.vm.cmd('blockdev-add', |
| 170 | node_name='ro-top', |
| 171 | driver=iotests.imgfmt, |
| 172 | read_only=True, |
| 173 | file={ |
| 174 | 'driver': 'file', |
| 175 | 'filename': ro_top_path, |
| 176 | 'read-only': True |
| 177 | }, |
| 178 | backing='mid') |
| 179 | |
| 180 | result = self.vm.qmp('block-stream', job_id='stream', |
| 181 | device='ro-top', base_node='base') |
| 182 | self.assert_qmp(result, 'error/desc', 'Block node is read-only') |
| 183 | |
| 184 | self.vm.cmd('blockdev-del', node_name='ro-top') |
| 185 | |
| 186 | |
| 187 | class TestParallelOps(iotests.QMPTestCase): |
| 188 | num_ops = 4 # Number of parallel block-stream operations |
| 189 | num_imgs = num_ops * 2 + 1 |
| 190 | image_len = num_ops * 4 * 1024 * 1024 |
| 191 | imgs = [] |
| 192 | |
| 193 | def setUp(self): |
| 194 | opts = [] |
| 195 | self.imgs = [] |
| 196 | |
| 197 | # Initialize file names and command-line options |
| 198 | for i in range(self.num_imgs): |
| 199 | img_depth = self.num_imgs - i - 1 |
| 200 | opts.append("backing." * img_depth + "node-name=node%d" % i) |
| 201 | self.imgs.append(os.path.join(iotests.test_dir, 'img-%d.img' % i)) |
| 202 | |
| 203 | # Create all images |
| 204 | iotests.create_image(self.imgs[0], self.image_len) |
| 205 | for i in range(1, self.num_imgs): |
| 206 | qemu_img('create', '-f', iotests.imgfmt, |
| 207 | '-o', 'backing_file=%s' % self.imgs[i-1], |
| 208 | '-F', 'raw' if i == 1 else iotests.imgfmt, self.imgs[i]) |
| 209 | |
| 210 | # Put data into the images we are copying data from |
| 211 | odd_img_indexes = [x for x in reversed(range(self.num_imgs)) if x % 2 == 1] |
| 212 | for i in range(len(odd_img_indexes)): |
| 213 | # Alternate between 2MB and 4MB. |
| 214 | # This way jobs will not finish in the same order they were created |
| 215 | num_mb = 2 + 2 * (i % 2) |
| 216 | qemu_io('-f', iotests.imgfmt, |
| 217 | '-c', 'write -P 0xFF %dM %dM' % (i * 4, num_mb), |
| 218 | self.imgs[odd_img_indexes[i]]) |
| 219 | |
| 220 | # Attach the drive to the VM |
| 221 | self.vm = iotests.VM() |
| 222 | self.vm.add_drive(self.imgs[-1], ','.join(opts)) |
| 223 | self.vm.launch() |
| 224 | |
| 225 | def tearDown(self): |
| 226 | self.vm.shutdown() |
| 227 | for img in self.imgs: |
| 228 | os.remove(img) |
| 229 | |
| 230 | # Test that it's possible to run several block-stream operations |
| 231 | # in parallel in the same snapshot chain |
| 232 | @unittest.skipIf(os.environ.get('QEMU_CHECK_BLOCK_AUTO'), 'disabled in CI') |
| 233 | def test_stream_parallel(self): |
| 234 | self.assert_no_active_block_jobs() |
| 235 | |
| 236 | # Check that the maps don't match before the streaming operations |
| 237 | for i in range(2, self.num_imgs, 2): |
| 238 | self.assertNotEqual( |
| 239 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[i]).stdout, |
| 240 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[i-1]).stdout, |
| 241 | 'image file map matches backing file before streaming') |
| 242 | |
| 243 | # Create all streaming jobs |
| 244 | pending_jobs = [] |
| 245 | for i in range(2, self.num_imgs, 2): |
| 246 | node_name = 'node%d' % i |
| 247 | job_id = 'stream-%s' % node_name |
| 248 | pending_jobs.append(job_id) |
| 249 | self.vm.cmd('block-stream', device=node_name, |
| 250 | job_id=job_id, bottom=f'node{i-1}', |
| 251 | speed=1024) |
| 252 | |
| 253 | # Do this in reverse: After unthrottling them, some jobs may finish |
| 254 | # before we have unthrottled all of them. This will drain their |
| 255 | # subgraph, and this will make jobs above them advance (despite those |
| 256 | # jobs on top being throttled). In the worst case, all jobs below the |
| 257 | # top one are finished before we can unthrottle it, and this makes it |
| 258 | # advance so far that it completes before we can unthrottle it - which |
| 259 | # results in an error. |
| 260 | # Starting from the top (i.e. in reverse) does not have this problem: |
| 261 | # When a job finishes, the ones below it are not advanced. |
| 262 | for job in reversed(pending_jobs): |
| 263 | self.vm.cmd('block-job-set-speed', device=job, speed=0) |
| 264 | |
| 265 | # Wait for all jobs to be finished. |
| 266 | while len(pending_jobs) > 0: |
| 267 | for event in self.vm.get_qmp_events(wait=True): |
| 268 | if event['event'] == 'BLOCK_JOB_COMPLETED': |
| 269 | job_id = self.dictpath(event, 'data/device') |
| 270 | self.assertTrue(job_id in pending_jobs) |
| 271 | self.assert_qmp_absent(event, 'data/error') |
| 272 | pending_jobs.remove(job_id) |
| 273 | |
| 274 | self.assert_no_active_block_jobs() |
| 275 | self.vm.shutdown() |
| 276 | |
| 277 | # Check that all maps match now |
| 278 | for i in range(2, self.num_imgs, 2): |
| 279 | self.assertEqual( |
| 280 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i]).stdout, |
| 281 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[i-1]).stdout, |
| 282 | 'image file map does not match backing file after streaming') |
| 283 | |
| 284 | # Test that it's not possible to perform two block-stream |
| 285 | # operations if there are nodes involved in both. |
| 286 | def test_overlapping_1(self): |
| 287 | self.assert_no_active_block_jobs() |
| 288 | |
| 289 | # Set a speed limit to make sure that this job blocks the rest |
| 290 | self.vm.cmd('block-stream', device='node4', |
| 291 | job_id='stream-node4', base=self.imgs[1], |
| 292 | filter_node_name='stream-filter', speed=1024*1024) |
| 293 | |
| 294 | result = self.vm.qmp('block-stream', device='node5', job_id='stream-node5', base=self.imgs[2]) |
| 295 | self.assert_qmp(result, 'error/desc', |
| 296 | "Node 'stream-filter' is busy: block device is in use by block job: stream") |
| 297 | |
| 298 | result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3', base=self.imgs[2]) |
| 299 | self.assert_qmp(result, 'error/desc', |
| 300 | "Node 'node3' is busy: block device is in use by block job: stream") |
| 301 | |
| 302 | result = self.vm.qmp('block-stream', device='node4', job_id='stream-node4-v2') |
| 303 | self.assert_qmp(result, 'error/desc', |
| 304 | "Node 'node4' is busy: block device is in use by block job: stream") |
| 305 | |
| 306 | # block-commit should also fail if it touches nodes used by the stream job |
| 307 | result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[4], job_id='commit-node4') |
| 308 | self.assert_qmp(result, 'error/desc', |
| 309 | "Node 'stream-filter' is busy: block device is in use by block job: stream") |
| 310 | |
| 311 | result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[1], top=self.imgs[3], job_id='commit-node1') |
| 312 | self.assert_qmp(result, 'error/desc', |
| 313 | "Node 'node3' is busy: block device is in use by block job: stream") |
| 314 | |
| 315 | # This fails because it needs to modify the backing string in node2, which is blocked |
| 316 | result = self.vm.qmp('block-commit', device='drive0', base=self.imgs[0], top=self.imgs[1], job_id='commit-node0') |
| 317 | self.assert_qmp(result, 'error/desc', |
| 318 | "Node 'node2' is busy: block device is in use by block job: stream") |
| 319 | |
| 320 | self.vm.cmd('block-job-set-speed', device='stream-node4', speed=0) |
| 321 | |
| 322 | self.wait_until_completed(drive='stream-node4') |
| 323 | self.assert_no_active_block_jobs() |
| 324 | |
| 325 | # Similar to test_overlapping_1, but with block-commit |
| 326 | # blocking the other jobs |
| 327 | def test_overlapping_2(self): |
| 328 | self.assertLessEqual(9, self.num_imgs) |
| 329 | self.assert_no_active_block_jobs() |
| 330 | |
| 331 | # Set a speed limit to make sure that this job blocks the rest |
| 332 | self.vm.cmd('block-commit', device='drive0', top=self.imgs[5], base=self.imgs[3], job_id='commit-node3', speed=1024*1024) |
| 333 | |
| 334 | result = self.vm.qmp('block-stream', device='node3', job_id='stream-node3') |
| 335 | self.assert_qmp(result, 'error/desc', |
| 336 | "Node 'node3' is busy: block device is in use by block job: commit") |
| 337 | |
| 338 | result = self.vm.qmp('block-stream', device='node6', base=self.imgs[2], job_id='stream-node6') |
| 339 | self.assert_qmp(result, 'error/desc', |
| 340 | "Node 'node5' is busy: block device is in use by block job: commit") |
| 341 | |
| 342 | result = self.vm.qmp('block-stream', device='node4', base=self.imgs[2], job_id='stream-node4') |
| 343 | self.assert_qmp(result, 'error/desc', |
| 344 | "Node 'node4' is busy: block device is in use by block job: commit") |
| 345 | |
| 346 | result = self.vm.qmp('block-stream', device='node6', base=self.imgs[4], job_id='stream-node6-v2') |
| 347 | self.assert_qmp(result, 'error/desc', |
| 348 | "Node 'node5' is busy: block device is in use by block job: commit") |
| 349 | |
| 350 | # This fails because block-commit currently blocks the active layer even if it's not used |
| 351 | result = self.vm.qmp('block-stream', device='drive0', base=self.imgs[5], job_id='stream-drive0') |
| 352 | self.assert_qmp(result, 'error/desc', |
| 353 | "Node 'drive0' is busy: block device is in use by block job: commit") |
| 354 | |
| 355 | self.vm.cmd('block-job-set-speed', device='commit-node3', speed=0) |
| 356 | |
| 357 | self.wait_until_completed(drive='commit-node3') |
| 358 | |
| 359 | # Similar to test_overlapping_2, but here block-commit doesn't use the 'top' parameter. |
| 360 | # Internally this uses a mirror block job, hence the separate test case. |
| 361 | def test_overlapping_3(self): |
| 362 | self.assertLessEqual(8, self.num_imgs) |
| 363 | self.assert_no_active_block_jobs() |
| 364 | |
| 365 | # Set a speed limit to make sure that this job blocks the rest |
| 366 | self.vm.cmd('block-commit', device='drive0', base=self.imgs[3], job_id='commit-drive0', speed=1024*1024) |
| 367 | |
| 368 | result = self.vm.qmp('block-stream', device='node5', base=self.imgs[3], job_id='stream-node6') |
| 369 | self.assert_qmp(result, 'error/desc', |
| 370 | "Node 'node5' is busy: block device is in use by block job: commit") |
| 371 | |
| 372 | self.vm.cmd('block-job-set-speed', device='commit-drive0', speed=0) |
| 373 | |
| 374 | event = self.vm.event_wait(name='BLOCK_JOB_READY') |
| 375 | self.assert_qmp(event, 'data/device', 'commit-drive0') |
| 376 | self.assert_qmp(event, 'data/type', 'commit') |
| 377 | self.assert_qmp_absent(event, 'data/error') |
| 378 | |
| 379 | self.vm.cmd('block-job-complete', device='commit-drive0') |
| 380 | |
| 381 | self.wait_until_completed(drive='commit-drive0') |
| 382 | |
| 383 | # In this case the base node of the stream job is the same as the |
| 384 | # top node of commit job. Since this results in the commit filter |
| 385 | # node being part of the stream chain, this is not allowed. |
| 386 | def test_overlapping_4(self): |
| 387 | self.assert_no_active_block_jobs() |
| 388 | |
| 389 | # Commit from node2 into node0 |
| 390 | self.vm.cmd('block-commit', device='drive0', |
| 391 | top=self.imgs[2], base=self.imgs[0], |
| 392 | filter_node_name='commit-filter', speed=1024*1024) |
| 393 | |
| 394 | # Stream from node2 into node4 |
| 395 | result = self.vm.qmp('block-stream', device='node4', base_node='node2', job_id='node4') |
| 396 | self.assert_qmp(result, 'error/desc', |
| 397 | "Cannot freeze 'backing' link to 'commit-filter'") |
| 398 | |
| 399 | self.vm.cmd('block-job-set-speed', device='drive0', speed=0) |
| 400 | |
| 401 | self.wait_until_completed() |
| 402 | self.assert_no_active_block_jobs() |
| 403 | |
| 404 | # In this case the base node of the stream job is the commit job's |
| 405 | # filter node. stream does not have a real dependency on its base |
| 406 | # node, so even though commit removes it when it is done, there is |
| 407 | # no conflict. |
| 408 | def test_overlapping_5(self): |
| 409 | self.assert_no_active_block_jobs() |
| 410 | |
| 411 | # Commit from node2 into node0 |
| 412 | self.vm.cmd('block-commit', device='drive0', |
| 413 | top_node='node2', base_node='node0', |
| 414 | filter_node_name='commit-filter', speed=1024*1024) |
| 415 | |
| 416 | # Stream from node2 into node4 |
| 417 | self.vm.cmd('block-stream', device='node4', |
| 418 | base_node='commit-filter', job_id='node4') |
| 419 | |
| 420 | self.vm.cmd('block-job-set-speed', device='drive0', speed=0) |
| 421 | |
| 422 | self.vm.run_job(job='drive0', auto_dismiss=True) |
| 423 | self.vm.run_job(job='node4', auto_dismiss=True) |
| 424 | self.assert_no_active_block_jobs() |
| 425 | |
| 426 | # Assert that node0 is now the backing node of node4 |
| 427 | result = self.vm.qmp('query-named-block-nodes') |
| 428 | node4 = next(node for node in result['return'] if node['node-name'] == 'node4') |
| 429 | self.assertEqual(node4['image']['backing-image']['filename'], self.imgs[0]) |
| 430 | |
| 431 | # Test a block-stream and a block-commit job in parallel |
| 432 | # Here the stream job is supposed to finish quickly in order to reproduce |
| 433 | # the scenario that triggers the bug fixed in 3d5d319e1221 and 1a63a907507 |
| 434 | def test_stream_commit_1(self): |
| 435 | self.assertLessEqual(8, self.num_imgs) |
| 436 | self.assert_no_active_block_jobs() |
| 437 | |
| 438 | # Stream from node0 into node2 |
| 439 | self.vm.cmd('block-stream', device='node2', base_node='node0', job_id='node2') |
| 440 | |
| 441 | # Commit from the active layer into node3 |
| 442 | self.vm.cmd('block-commit', device='drive0', base=self.imgs[3]) |
| 443 | |
| 444 | # Wait for all jobs to be finished. |
| 445 | pending_jobs = ['node2', 'drive0'] |
| 446 | while len(pending_jobs) > 0: |
| 447 | for event in self.vm.get_qmp_events(wait=True): |
| 448 | if event['event'] == 'BLOCK_JOB_COMPLETED': |
| 449 | node_name = self.dictpath(event, 'data/device') |
| 450 | self.assertTrue(node_name in pending_jobs) |
| 451 | self.assert_qmp_absent(event, 'data/error') |
| 452 | pending_jobs.remove(node_name) |
| 453 | if event['event'] == 'BLOCK_JOB_READY': |
| 454 | self.assert_qmp(event, 'data/device', 'drive0') |
| 455 | self.assert_qmp(event, 'data/type', 'commit') |
| 456 | self.assert_qmp_absent(event, 'data/error') |
| 457 | self.assertTrue('drive0' in pending_jobs) |
| 458 | self.vm.qmp('block-job-complete', device='drive0') |
| 459 | |
| 460 | self.assert_no_active_block_jobs() |
| 461 | |
| 462 | # This is similar to test_stream_commit_1 but both jobs are slowed |
| 463 | # down so they can run in parallel for a little while. |
| 464 | def test_stream_commit_2(self): |
| 465 | self.assertLessEqual(8, self.num_imgs) |
| 466 | self.assert_no_active_block_jobs() |
| 467 | |
| 468 | # Stream from node0 into node4 |
| 469 | self.vm.cmd('block-stream', device='node4', base_node='node0', job_id='node4', speed=1024*1024) |
| 470 | |
| 471 | # Commit from the active layer into node5 |
| 472 | self.vm.cmd('block-commit', device='drive0', base=self.imgs[5], speed=1024*1024) |
| 473 | |
| 474 | for job in ['drive0', 'node4']: |
| 475 | self.vm.cmd('block-job-set-speed', device=job, speed=0) |
| 476 | |
| 477 | # Wait for all jobs to be finished. |
| 478 | pending_jobs = ['node4', 'drive0'] |
| 479 | while len(pending_jobs) > 0: |
| 480 | for event in self.vm.get_qmp_events(wait=True): |
| 481 | if event['event'] == 'BLOCK_JOB_COMPLETED': |
| 482 | node_name = self.dictpath(event, 'data/device') |
| 483 | self.assertTrue(node_name in pending_jobs) |
| 484 | self.assert_qmp_absent(event, 'data/error') |
| 485 | pending_jobs.remove(node_name) |
| 486 | if event['event'] == 'BLOCK_JOB_READY': |
| 487 | self.assert_qmp(event, 'data/device', 'drive0') |
| 488 | self.assert_qmp(event, 'data/type', 'commit') |
| 489 | self.assert_qmp_absent(event, 'data/error') |
| 490 | self.assertTrue('drive0' in pending_jobs) |
| 491 | self.vm.qmp('block-job-complete', device='drive0') |
| 492 | |
| 493 | self.assert_no_active_block_jobs() |
| 494 | |
| 495 | # Test the base_node parameter |
| 496 | def test_stream_base_node_name(self): |
| 497 | self.assert_no_active_block_jobs() |
| 498 | |
| 499 | self.assertNotEqual( |
| 500 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[4]).stdout, |
| 501 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.imgs[3]).stdout, |
| 502 | 'image file map matches backing file before streaming') |
| 503 | |
| 504 | # Error: the base node does not exist |
| 505 | result = self.vm.qmp('block-stream', device='node4', base_node='none', job_id='stream') |
| 506 | self.assert_qmp(result, 'error/desc', |
| 507 | 'Cannot find device=\'\' nor node-name=\'none\'') |
| 508 | |
| 509 | # Error: the base node is not a backing file of the top node |
| 510 | result = self.vm.qmp('block-stream', device='node4', base_node='node6', job_id='stream') |
| 511 | self.assert_qmp(result, 'error/desc', |
| 512 | "Node 'node6' is not a backing image of 'node4'") |
| 513 | |
| 514 | # Error: the base node is the same as the top node |
| 515 | result = self.vm.qmp('block-stream', device='node4', base_node='node4', job_id='stream') |
| 516 | self.assert_qmp(result, 'error/desc', |
| 517 | "Node 'node4' is not a backing image of 'node4'") |
| 518 | |
| 519 | # Error: cannot specify 'base' and 'base-node' at the same time |
| 520 | result = self.vm.qmp('block-stream', device='node4', base=self.imgs[2], base_node='node2', job_id='stream') |
| 521 | self.assert_qmp(result, 'error/desc', |
| 522 | "'base' and 'base-node' cannot be specified at the same time") |
| 523 | |
| 524 | # Success: the base node is a backing file of the top node |
| 525 | self.vm.cmd('block-stream', device='node4', base_node='node2', job_id='stream') |
| 526 | |
| 527 | self.wait_until_completed(drive='stream') |
| 528 | |
| 529 | self.assert_no_active_block_jobs() |
| 530 | self.vm.shutdown() |
| 531 | |
| 532 | self.assertEqual( |
| 533 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[4]).stdout, |
| 534 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.imgs[3]).stdout, |
| 535 | 'image file map matches backing file after streaming') |
| 536 | |
| 537 | class TestQuorum(iotests.QMPTestCase): |
| 538 | num_children = 3 |
| 539 | children = [] |
| 540 | backing = [] |
| 541 | |
| 542 | @iotests.skip_if_unsupported(['quorum']) |
| 543 | def setUp(self): |
| 544 | opts = ['driver=quorum', 'vote-threshold=2'] |
| 545 | |
| 546 | # Initialize file names and command-line options |
| 547 | for i in range(self.num_children): |
| 548 | child_img = os.path.join(iotests.test_dir, 'img-%d.img' % i) |
| 549 | backing_img = os.path.join(iotests.test_dir, 'backing-%d.img' % i) |
| 550 | self.children.append(child_img) |
| 551 | self.backing.append(backing_img) |
| 552 | qemu_img('create', '-f', iotests.imgfmt, backing_img, '1M') |
| 553 | qemu_io('-f', iotests.imgfmt, |
| 554 | '-c', 'write -P 0x55 0 1024', backing_img) |
| 555 | qemu_img('create', '-f', iotests.imgfmt, |
| 556 | '-o', 'backing_file=%s' % backing_img, |
| 557 | '-F', iotests.imgfmt, child_img) |
| 558 | opts.append("children.%d.file.filename=%s" % (i, child_img)) |
| 559 | opts.append("children.%d.node-name=node%d" % (i, i)) |
| 560 | |
| 561 | # Attach the drive to the VM |
| 562 | self.vm = iotests.VM() |
| 563 | self.vm.add_drive(path = None, opts = ','.join(opts)) |
| 564 | self.vm.launch() |
| 565 | |
| 566 | def tearDown(self): |
| 567 | self.vm.shutdown() |
| 568 | for img in self.children: |
| 569 | os.remove(img) |
| 570 | for img in self.backing: |
| 571 | os.remove(img) |
| 572 | |
| 573 | def test_stream_quorum(self): |
| 574 | self.assertNotEqual( |
| 575 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.children[0]).stdout, |
| 576 | qemu_io('-f', iotests.imgfmt, '-rU', '-c', 'map', self.backing[0]).stdout, |
| 577 | 'image file map matches backing file before streaming') |
| 578 | |
| 579 | self.assert_no_active_block_jobs() |
| 580 | |
| 581 | self.vm.cmd('block-stream', device='node0', job_id='stream-node0') |
| 582 | |
| 583 | self.wait_until_completed(drive='stream-node0') |
| 584 | |
| 585 | self.assert_no_active_block_jobs() |
| 586 | self.vm.shutdown() |
| 587 | |
| 588 | self.assertEqual( |
| 589 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.children[0]).stdout, |
| 590 | qemu_io('-f', iotests.imgfmt, '-c', 'map', self.backing[0]).stdout, |
| 591 | 'image file map does not match backing file after streaming') |
| 592 | |
| 593 | class TestSmallerBackingFile(iotests.QMPTestCase): |
| 594 | backing_len = 1 * 1024 * 1024 # MB |
| 595 | image_len = 2 * backing_len |
| 596 | |
| 597 | def setUp(self): |
| 598 | iotests.create_image(backing_img, self.backing_len) |
| 599 | qemu_img('create', '-f', iotests.imgfmt, |
| 600 | '-o', 'backing_file=%s' % backing_img, |
| 601 | '-F', 'raw', test_img, str(self.image_len)) |
| 602 | self.vm = iotests.VM().add_drive(test_img) |
| 603 | self.vm.launch() |
| 604 | |
| 605 | # If this hangs, then you are missing a fix to complete streaming when the |
| 606 | # end of the backing file is reached. |
| 607 | def test_stream(self): |
| 608 | self.assert_no_active_block_jobs() |
| 609 | |
| 610 | self.vm.cmd('block-stream', device='drive0') |
| 611 | |
| 612 | self.wait_until_completed() |
| 613 | |
| 614 | self.assert_no_active_block_jobs() |
| 615 | self.vm.shutdown() |
| 616 | |
| 617 | class TestErrors(iotests.QMPTestCase): |
| 618 | image_len = 2 * 1024 * 1024 # MB |
| 619 | |
| 620 | # this should match STREAM_BUFFER_SIZE/512 in block/stream.c |
| 621 | STREAM_BUFFER_SIZE = 512 * 1024 |
| 622 | |
| 623 | def create_blkdebug_file(self, name, event, errno): |
| 624 | file = open(name, 'w') |
| 625 | file.write(''' |
| 626 | [inject-error] |
| 627 | state = "1" |
| 628 | event = "%s" |
| 629 | errno = "%d" |
| 630 | immediately = "off" |
| 631 | once = "on" |
| 632 | sector = "%d" |
| 633 | |
| 634 | [set-state] |
| 635 | state = "1" |
| 636 | event = "%s" |
| 637 | new_state = "2" |
| 638 | |
| 639 | [set-state] |
| 640 | state = "2" |
| 641 | event = "%s" |
| 642 | new_state = "1" |
| 643 | ''' % (event, errno, self.STREAM_BUFFER_SIZE // 512, event, event)) |
| 644 | file.close() |
| 645 | |
| 646 | class TestEIO(TestErrors): |
| 647 | def setUp(self): |
| 648 | self.blkdebug_file = backing_img + ".blkdebug" |
| 649 | iotests.create_image(backing_img, TestErrors.image_len) |
| 650 | self.create_blkdebug_file(self.blkdebug_file, "read_aio", 5) |
| 651 | qemu_img('create', '-f', iotests.imgfmt, |
| 652 | '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' |
| 653 | % (self.blkdebug_file, backing_img), |
| 654 | test_img) |
| 655 | self.vm = iotests.VM().add_drive(test_img) |
| 656 | self.vm.launch() |
| 657 | |
| 658 | def tearDown(self): |
| 659 | self.vm.shutdown() |
| 660 | os.remove(test_img) |
| 661 | os.remove(backing_img) |
| 662 | os.remove(self.blkdebug_file) |
| 663 | |
| 664 | def test_report(self): |
| 665 | self.assert_no_active_block_jobs() |
| 666 | |
| 667 | self.vm.cmd('block-stream', device='drive0') |
| 668 | |
| 669 | completed = False |
| 670 | error = False |
| 671 | while not completed: |
| 672 | for event in self.vm.get_qmp_events(wait=True): |
| 673 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 674 | self.assert_qmp(event, 'data/device', 'drive0') |
| 675 | self.assert_qmp(event, 'data/operation', 'read') |
| 676 | error = True |
| 677 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 678 | self.assertTrue(error, 'job completed unexpectedly') |
| 679 | self.assert_qmp(event, 'data/type', 'stream') |
| 680 | self.assert_qmp(event, 'data/device', 'drive0') |
| 681 | self.assert_qmp(event, 'data/error', 'Input/output error') |
| 682 | self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE) |
| 683 | self.assert_qmp(event, 'data/len', self.image_len) |
| 684 | completed = True |
| 685 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 686 | self.assert_qmp(event, 'data/id', 'drive0') |
| 687 | |
| 688 | self.assert_no_active_block_jobs() |
| 689 | self.vm.shutdown() |
| 690 | |
| 691 | def test_ignore(self): |
| 692 | self.assert_no_active_block_jobs() |
| 693 | |
| 694 | self.vm.cmd('block-stream', device='drive0', on_error='ignore') |
| 695 | |
| 696 | error = False |
| 697 | completed = False |
| 698 | while not completed: |
| 699 | for event in self.vm.get_qmp_events(wait=True): |
| 700 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 701 | error = True |
| 702 | self.assert_qmp(event, 'data/device', 'drive0') |
| 703 | self.assert_qmp(event, 'data/operation', 'read') |
| 704 | result = self.vm.qmp('query-block-jobs') |
| 705 | if result == {'return': []}: |
| 706 | # Job finished too quickly |
| 707 | continue |
| 708 | self.assertIn(result['return'][0]['status'], |
| 709 | ['running', 'pending', 'aborting', 'concluded']) |
| 710 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 711 | self.assertTrue(error, 'job completed unexpectedly') |
| 712 | self.assert_qmp(event, 'data/type', 'stream') |
| 713 | self.assert_qmp(event, 'data/device', 'drive0') |
| 714 | self.assert_qmp(event, 'data/error', 'Input/output error') |
| 715 | self.assert_qmp(event, 'data/offset', self.image_len) |
| 716 | self.assert_qmp(event, 'data/len', self.image_len) |
| 717 | completed = True |
| 718 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 719 | self.assert_qmp(event, 'data/id', 'drive0') |
| 720 | |
| 721 | self.assert_no_active_block_jobs() |
| 722 | self.vm.shutdown() |
| 723 | |
| 724 | def test_stop(self): |
| 725 | self.assert_no_active_block_jobs() |
| 726 | |
| 727 | self.vm.cmd('block-stream', device='drive0', on_error='stop') |
| 728 | |
| 729 | error = False |
| 730 | completed = False |
| 731 | while not completed: |
| 732 | for event in self.vm.get_qmp_events(wait=True): |
| 733 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 734 | error = True |
| 735 | self.assert_qmp(event, 'data/device', 'drive0') |
| 736 | self.assert_qmp(event, 'data/operation', 'read') |
| 737 | |
| 738 | if self.vm.qmp('query-block-jobs')['return'][0]['status'] != 'paused': |
| 739 | self.vm.events_wait([( |
| 740 | 'JOB_STATUS_CHANGE', |
| 741 | {'data': {'id': 'drive0', 'status': 'paused'}} |
| 742 | )]) |
| 743 | |
| 744 | result = self.vm.qmp('query-block-jobs') |
| 745 | self.assert_qmp(result, 'return[0]/status', 'paused') |
| 746 | self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE) |
| 747 | self.assert_qmp(result, 'return[0]/io-status', 'failed') |
| 748 | |
| 749 | self.vm.cmd('block-job-resume', device='drive0') |
| 750 | |
| 751 | result = self.vm.qmp('query-block-jobs') |
| 752 | if result == {'return': []}: |
| 753 | # Race; likely already finished. Check. |
| 754 | continue |
| 755 | self.assertIn(result['return'][0]['status'], |
| 756 | ['running', 'pending', 'aborting', 'concluded']) |
| 757 | self.assert_qmp(result, 'return[0]/io-status', 'ok') |
| 758 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 759 | self.assertTrue(error, 'job completed unexpectedly') |
| 760 | self.assert_qmp(event, 'data/type', 'stream') |
| 761 | self.assert_qmp(event, 'data/device', 'drive0') |
| 762 | self.assert_qmp_absent(event, 'data/error') |
| 763 | self.assert_qmp(event, 'data/offset', self.image_len) |
| 764 | self.assert_qmp(event, 'data/len', self.image_len) |
| 765 | completed = True |
| 766 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 767 | self.assert_qmp(event, 'data/id', 'drive0') |
| 768 | |
| 769 | self.assert_no_active_block_jobs() |
| 770 | self.vm.shutdown() |
| 771 | |
| 772 | def test_enospc(self): |
| 773 | self.assert_no_active_block_jobs() |
| 774 | |
| 775 | self.vm.cmd('block-stream', device='drive0', on_error='enospc') |
| 776 | |
| 777 | completed = False |
| 778 | error = False |
| 779 | while not completed: |
| 780 | for event in self.vm.get_qmp_events(wait=True): |
| 781 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 782 | self.assert_qmp(event, 'data/device', 'drive0') |
| 783 | self.assert_qmp(event, 'data/operation', 'read') |
| 784 | error = True |
| 785 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 786 | self.assertTrue(error, 'job completed unexpectedly') |
| 787 | self.assert_qmp(event, 'data/type', 'stream') |
| 788 | self.assert_qmp(event, 'data/device', 'drive0') |
| 789 | self.assert_qmp(event, 'data/error', 'Input/output error') |
| 790 | self.assert_qmp(event, 'data/offset', self.STREAM_BUFFER_SIZE) |
| 791 | self.assert_qmp(event, 'data/len', self.image_len) |
| 792 | completed = True |
| 793 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 794 | self.assert_qmp(event, 'data/id', 'drive0') |
| 795 | |
| 796 | self.assert_no_active_block_jobs() |
| 797 | self.vm.shutdown() |
| 798 | |
| 799 | class TestENOSPC(TestErrors): |
| 800 | def setUp(self): |
| 801 | self.blkdebug_file = backing_img + ".blkdebug" |
| 802 | iotests.create_image(backing_img, TestErrors.image_len) |
| 803 | self.create_blkdebug_file(self.blkdebug_file, "read_aio", 28) |
| 804 | qemu_img('create', '-f', iotests.imgfmt, |
| 805 | '-o', 'backing_file=blkdebug:%s:%s,backing_fmt=raw' |
| 806 | % (self.blkdebug_file, backing_img), |
| 807 | test_img) |
| 808 | self.vm = iotests.VM().add_drive(test_img) |
| 809 | self.vm.launch() |
| 810 | |
| 811 | def tearDown(self): |
| 812 | self.vm.shutdown() |
| 813 | os.remove(test_img) |
| 814 | os.remove(backing_img) |
| 815 | os.remove(self.blkdebug_file) |
| 816 | |
| 817 | def test_enospc(self): |
| 818 | self.assert_no_active_block_jobs() |
| 819 | |
| 820 | self.vm.cmd('block-stream', device='drive0', on_error='enospc') |
| 821 | |
| 822 | error = False |
| 823 | completed = False |
| 824 | while not completed: |
| 825 | for event in self.vm.get_qmp_events(wait=True): |
| 826 | if event['event'] == 'BLOCK_JOB_ERROR': |
| 827 | self.assert_qmp(event, 'data/device', 'drive0') |
| 828 | self.assert_qmp(event, 'data/operation', 'read') |
| 829 | error = True |
| 830 | |
| 831 | if self.vm.qmp('query-block-jobs')['return'][0]['status'] != 'paused': |
| 832 | self.vm.events_wait([( |
| 833 | 'JOB_STATUS_CHANGE', |
| 834 | {'data': {'id': 'drive0', 'status': 'paused'}} |
| 835 | )]) |
| 836 | |
| 837 | result = self.vm.qmp('query-block-jobs') |
| 838 | self.assert_qmp(result, 'return[0]/status', 'paused') |
| 839 | self.assert_qmp(result, 'return[0]/offset', self.STREAM_BUFFER_SIZE) |
| 840 | self.assert_qmp(result, 'return[0]/io-status', 'nospace') |
| 841 | |
| 842 | self.vm.cmd('block-job-resume', device='drive0') |
| 843 | |
| 844 | result = self.vm.qmp('query-block-jobs') |
| 845 | if result == {'return': []}: |
| 846 | # Race; likely already finished. Check. |
| 847 | continue |
| 848 | self.assertIn(result['return'][0]['status'], |
| 849 | ['running', 'pending', 'aborting', 'concluded']) |
| 850 | self.assert_qmp(result, 'return[0]/io-status', 'ok') |
| 851 | elif event['event'] == 'BLOCK_JOB_COMPLETED': |
| 852 | self.assertTrue(error, 'job completed unexpectedly') |
| 853 | self.assert_qmp(event, 'data/type', 'stream') |
| 854 | self.assert_qmp(event, 'data/device', 'drive0') |
| 855 | self.assert_qmp_absent(event, 'data/error') |
| 856 | self.assert_qmp(event, 'data/offset', self.image_len) |
| 857 | self.assert_qmp(event, 'data/len', self.image_len) |
| 858 | completed = True |
| 859 | elif event['event'] == 'JOB_STATUS_CHANGE': |
| 860 | self.assert_qmp(event, 'data/id', 'drive0') |
| 861 | |
| 862 | self.assert_no_active_block_jobs() |
| 863 | self.vm.shutdown() |
| 864 | |
| 865 | class TestStreamStop(iotests.QMPTestCase): |
| 866 | image_len = 8 * 1024 * 1024 * 1024 # GB |
| 867 | |
| 868 | def setUp(self): |
| 869 | qemu_img('create', backing_img, str(TestStreamStop.image_len)) |
| 870 | qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img) |
| 871 | qemu_img('create', '-f', iotests.imgfmt, |
| 872 | '-o', 'backing_file=%s' % backing_img, |
| 873 | '-F', 'raw', test_img) |
| 874 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img) |
| 875 | self.vm = iotests.VM().add_drive("blkdebug::" + test_img) |
| 876 | self.vm.launch() |
| 877 | |
| 878 | def tearDown(self): |
| 879 | self.vm.shutdown() |
| 880 | os.remove(test_img) |
| 881 | os.remove(backing_img) |
| 882 | |
| 883 | def test_stream_stop(self): |
| 884 | self.assert_no_active_block_jobs() |
| 885 | |
| 886 | self.vm.pause_drive('drive0') |
| 887 | self.vm.cmd('block-stream', device='drive0') |
| 888 | |
| 889 | time.sleep(0.1) |
| 890 | events = self.vm.get_qmp_events(wait=False) |
| 891 | for e in events: |
| 892 | self.assert_qmp(e, 'event', 'JOB_STATUS_CHANGE') |
| 893 | self.assert_qmp(e, 'data/id', 'drive0') |
| 894 | |
| 895 | self.cancel_and_wait(resume=True) |
| 896 | |
| 897 | class TestSetSpeed(iotests.QMPTestCase): |
| 898 | image_len = 80 * 1024 * 1024 # MB |
| 899 | |
| 900 | def setUp(self): |
| 901 | qemu_img('create', backing_img, str(TestSetSpeed.image_len)) |
| 902 | qemu_io('-f', 'raw', '-c', 'write -P 0x1 0 32M', backing_img) |
| 903 | qemu_img('create', '-f', iotests.imgfmt, |
| 904 | '-o', 'backing_file=%s' % backing_img, |
| 905 | '-F', 'raw', test_img) |
| 906 | qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0x1 32M 32M', test_img) |
| 907 | self.vm = iotests.VM().add_drive('blkdebug::' + test_img) |
| 908 | self.vm.launch() |
| 909 | |
| 910 | def tearDown(self): |
| 911 | self.vm.shutdown() |
| 912 | os.remove(test_img) |
| 913 | os.remove(backing_img) |
| 914 | |
| 915 | # This is a short performance test which is not run by default. |
| 916 | # Invoke "IMGFMT=qed ./030 TestSetSpeed.perf_test_throughput" |
| 917 | def perf_test_throughput(self): |
| 918 | self.assert_no_active_block_jobs() |
| 919 | |
| 920 | self.vm.cmd('block-stream', device='drive0') |
| 921 | |
| 922 | self.vm.cmd('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024) |
| 923 | |
| 924 | self.wait_until_completed() |
| 925 | |
| 926 | self.assert_no_active_block_jobs() |
| 927 | |
| 928 | def test_set_speed(self): |
| 929 | self.assert_no_active_block_jobs() |
| 930 | |
| 931 | self.vm.pause_drive('drive0') |
| 932 | self.vm.cmd('block-stream', device='drive0') |
| 933 | |
| 934 | # Default speed is 0 |
| 935 | result = self.vm.qmp('query-block-jobs') |
| 936 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 937 | self.assert_qmp(result, 'return[0]/speed', 0) |
| 938 | |
| 939 | self.vm.cmd('block-job-set-speed', device='drive0', speed=8 * 1024 * 1024) |
| 940 | |
| 941 | # Ensure the speed we set was accepted |
| 942 | result = self.vm.qmp('query-block-jobs') |
| 943 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 944 | self.assert_qmp(result, 'return[0]/speed', 8 * 1024 * 1024) |
| 945 | |
| 946 | self.cancel_and_wait(resume=True) |
| 947 | self.vm.pause_drive('drive0') |
| 948 | |
| 949 | # Check setting speed in block-stream works |
| 950 | self.vm.cmd('block-stream', device='drive0', speed=4 * 1024 * 1024) |
| 951 | |
| 952 | result = self.vm.qmp('query-block-jobs') |
| 953 | self.assert_qmp(result, 'return[0]/device', 'drive0') |
| 954 | self.assert_qmp(result, 'return[0]/speed', 4 * 1024 * 1024) |
| 955 | |
| 956 | self.cancel_and_wait(resume=True) |
| 957 | |
| 958 | def test_set_speed_invalid(self): |
| 959 | self.assert_no_active_block_jobs() |
| 960 | |
| 961 | result = self.vm.qmp('block-stream', device='drive0', speed=-1) |
| 962 | self.assert_qmp(result, 'error/desc', "Parameter 'speed' expects a non-negative value") |
| 963 | |
| 964 | self.assert_no_active_block_jobs() |
| 965 | |
| 966 | self.vm.pause_drive('drive0') |
| 967 | self.vm.cmd('block-stream', device='drive0') |
| 968 | |
| 969 | result = self.vm.qmp('block-job-set-speed', device='drive0', speed=-1) |
| 970 | self.assert_qmp(result, 'error/desc', "Parameter 'speed' expects a non-negative value") |
| 971 | |
| 972 | self.cancel_and_wait(resume=True) |
| 973 | |
| 974 | if __name__ == '__main__': |
| 975 | iotests.main(supported_fmts=['qcow2', 'qed'], |
| 976 | supported_protocols=['file']) |