root / test / ganeti.locking_unittest.py @ 25231ec5
History | View | Annotate | Download (46.1 kB)
| 1 |
#!/usr/bin/python
|
|---|---|
| 2 |
#
|
| 3 |
|
| 4 |
# Copyright (C) 2006, 2007 Google Inc.
|
| 5 |
#
|
| 6 |
# This program is free software; you can redistribute it and/or modify
|
| 7 |
# it under the terms of the GNU General Public License as published by
|
| 8 |
# the Free Software Foundation; either version 2 of the License, or
|
| 9 |
# (at your option) any later version.
|
| 10 |
#
|
| 11 |
# This program is distributed in the hope that it will be useful, but
|
| 12 |
# WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
| 14 |
# General Public License for more details.
|
| 15 |
#
|
| 16 |
# You should have received a copy of the GNU General Public License
|
| 17 |
# along with this program; if not, write to the Free Software
|
| 18 |
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
| 19 |
# 0.0510-1301, USA.
|
| 20 |
|
| 21 |
|
| 22 |
"""Script for unittesting the locking module"""
|
| 23 |
|
| 24 |
|
| 25 |
import os |
| 26 |
import unittest |
| 27 |
import time |
| 28 |
import Queue |
| 29 |
import threading |
| 30 |
|
| 31 |
from ganeti import locking |
| 32 |
from ganeti import errors |
| 33 |
|
| 34 |
import testutils |
| 35 |
|
| 36 |
|
| 37 |
# This is used to test the ssynchronize decorator.
|
| 38 |
# Since it's passed as input to a decorator it must be declared as a global.
|
| 39 |
_decoratorlock = locking.SharedLock() |
| 40 |
|
| 41 |
#: List for looping tests
|
| 42 |
ITERATIONS = range(8) |
| 43 |
|
| 44 |
|
| 45 |
def _Repeat(fn): |
| 46 |
"""Decorator for executing a function many times"""
|
| 47 |
def wrapper(*args, **kwargs): |
| 48 |
for i in ITERATIONS: |
| 49 |
fn(*args, **kwargs) |
| 50 |
return wrapper
|
| 51 |
|
| 52 |
|
| 53 |
def SafeSleep(duration): |
| 54 |
start = time.time() |
| 55 |
while True: |
| 56 |
delay = start + duration - time.time() |
| 57 |
if delay <= 0.0: |
| 58 |
break
|
| 59 |
time.sleep(delay) |
| 60 |
|
| 61 |
|
| 62 |
class _ThreadedTestCase(unittest.TestCase): |
| 63 |
"""Test class that supports adding/waiting on threads"""
|
| 64 |
def setUp(self): |
| 65 |
unittest.TestCase.setUp(self)
|
| 66 |
self.done = Queue.Queue(0) |
| 67 |
self.threads = []
|
| 68 |
|
| 69 |
def _addThread(self, *args, **kwargs): |
| 70 |
"""Create and remember a new thread"""
|
| 71 |
t = threading.Thread(*args, **kwargs) |
| 72 |
self.threads.append(t)
|
| 73 |
t.start() |
| 74 |
return t
|
| 75 |
|
| 76 |
def _waitThreads(self): |
| 77 |
"""Wait for all our threads to finish"""
|
| 78 |
for t in self.threads: |
| 79 |
t.join(60)
|
| 80 |
self.failIf(t.isAlive())
|
| 81 |
self.threads = []
|
| 82 |
|
| 83 |
|
| 84 |
class _ConditionTestCase(_ThreadedTestCase): |
| 85 |
"""Common test case for conditions"""
|
| 86 |
|
| 87 |
def setUp(self, cls): |
| 88 |
_ThreadedTestCase.setUp(self)
|
| 89 |
self.lock = threading.Lock()
|
| 90 |
self.cond = cls(self.lock) |
| 91 |
|
| 92 |
def _testAcquireRelease(self): |
| 93 |
self.assert_(not self.cond._is_owned()) |
| 94 |
self.assertRaises(RuntimeError, self.cond.wait) |
| 95 |
self.assertRaises(RuntimeError, self.cond.notifyAll) |
| 96 |
|
| 97 |
self.cond.acquire()
|
| 98 |
self.assert_(self.cond._is_owned()) |
| 99 |
self.cond.notifyAll()
|
| 100 |
self.assert_(self.cond._is_owned()) |
| 101 |
self.cond.release()
|
| 102 |
|
| 103 |
self.assert_(not self.cond._is_owned()) |
| 104 |
self.assertRaises(RuntimeError, self.cond.wait) |
| 105 |
self.assertRaises(RuntimeError, self.cond.notifyAll) |
| 106 |
|
| 107 |
def _testNotification(self): |
| 108 |
def _NotifyAll(): |
| 109 |
self.done.put("NE") |
| 110 |
self.cond.acquire()
|
| 111 |
self.done.put("NA") |
| 112 |
self.cond.notifyAll()
|
| 113 |
self.done.put("NN") |
| 114 |
self.cond.release()
|
| 115 |
|
| 116 |
self.cond.acquire()
|
| 117 |
self._addThread(target=_NotifyAll)
|
| 118 |
self.assertEqual(self.done.get(True, 1), "NE") |
| 119 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 120 |
self.cond.wait()
|
| 121 |
self.assertEqual(self.done.get(True, 1), "NA") |
| 122 |
self.assertEqual(self.done.get(True, 1), "NN") |
| 123 |
self.assert_(self.cond._is_owned()) |
| 124 |
self.cond.release()
|
| 125 |
self.assert_(not self.cond._is_owned()) |
| 126 |
|
| 127 |
|
| 128 |
class TestSingleNotifyPipeCondition(_ConditionTestCase): |
| 129 |
"""SingleNotifyPipeCondition tests"""
|
| 130 |
|
| 131 |
def setUp(self): |
| 132 |
_ConditionTestCase.setUp(self, locking.SingleNotifyPipeCondition)
|
| 133 |
|
| 134 |
def testAcquireRelease(self): |
| 135 |
self._testAcquireRelease()
|
| 136 |
|
| 137 |
def testNotification(self): |
| 138 |
self._testNotification()
|
| 139 |
|
| 140 |
def testWaitReuse(self): |
| 141 |
self.cond.acquire()
|
| 142 |
self.cond.wait(0) |
| 143 |
self.cond.wait(0.1) |
| 144 |
self.cond.release()
|
| 145 |
|
| 146 |
def testNoNotifyReuse(self): |
| 147 |
self.cond.acquire()
|
| 148 |
self.cond.notifyAll()
|
| 149 |
self.assertRaises(RuntimeError, self.cond.wait) |
| 150 |
self.assertRaises(RuntimeError, self.cond.notifyAll) |
| 151 |
self.cond.release()
|
| 152 |
|
| 153 |
|
| 154 |
class TestPipeCondition(_ConditionTestCase): |
| 155 |
"""PipeCondition tests"""
|
| 156 |
|
| 157 |
def setUp(self): |
| 158 |
_ConditionTestCase.setUp(self, locking.PipeCondition)
|
| 159 |
|
| 160 |
def testAcquireRelease(self): |
| 161 |
self._testAcquireRelease()
|
| 162 |
|
| 163 |
def testNotification(self): |
| 164 |
self._testNotification()
|
| 165 |
|
| 166 |
def _TestWait(self, fn): |
| 167 |
self._addThread(target=fn)
|
| 168 |
self._addThread(target=fn)
|
| 169 |
self._addThread(target=fn)
|
| 170 |
|
| 171 |
# Wait for threads to be waiting
|
| 172 |
self.assertEqual(self.done.get(True, 1), "A") |
| 173 |
self.assertEqual(self.done.get(True, 1), "A") |
| 174 |
self.assertEqual(self.done.get(True, 1), "A") |
| 175 |
|
| 176 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 177 |
|
| 178 |
self.cond.acquire()
|
| 179 |
self.assertEqual(self.cond._nwaiters, 3) |
| 180 |
# This new thread can"t acquire the lock, and thus call wait, before we
|
| 181 |
# release it
|
| 182 |
self._addThread(target=fn)
|
| 183 |
self.cond.notifyAll()
|
| 184 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 185 |
self.cond.release()
|
| 186 |
|
| 187 |
# We should now get 3 W and 1 A (for the new thread) in whatever order
|
| 188 |
w = 0
|
| 189 |
a = 0
|
| 190 |
for i in range(4): |
| 191 |
got = self.done.get(True, 1) |
| 192 |
if got == "W": |
| 193 |
w += 1
|
| 194 |
elif got == "A": |
| 195 |
a += 1
|
| 196 |
else:
|
| 197 |
self.fail("Got %s on the done queue" % got) |
| 198 |
|
| 199 |
self.assertEqual(w, 3) |
| 200 |
self.assertEqual(a, 1) |
| 201 |
|
| 202 |
self.cond.acquire()
|
| 203 |
self.cond.notifyAll()
|
| 204 |
self.cond.release()
|
| 205 |
self._waitThreads()
|
| 206 |
self.assertEqual(self.done.get_nowait(), "W") |
| 207 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 208 |
|
| 209 |
def testBlockingWait(self): |
| 210 |
def _BlockingWait(): |
| 211 |
self.cond.acquire()
|
| 212 |
self.done.put("A") |
| 213 |
self.cond.wait()
|
| 214 |
self.cond.release()
|
| 215 |
self.done.put("W") |
| 216 |
|
| 217 |
self._TestWait(_BlockingWait)
|
| 218 |
|
| 219 |
def testLongTimeoutWait(self): |
| 220 |
def _Helper(): |
| 221 |
self.cond.acquire()
|
| 222 |
self.done.put("A") |
| 223 |
self.cond.wait(15.0) |
| 224 |
self.cond.release()
|
| 225 |
self.done.put("W") |
| 226 |
|
| 227 |
self._TestWait(_Helper)
|
| 228 |
|
| 229 |
def _TimeoutWait(self, timeout, check): |
| 230 |
self.cond.acquire()
|
| 231 |
self.cond.wait(timeout)
|
| 232 |
self.cond.release()
|
| 233 |
self.done.put(check)
|
| 234 |
|
| 235 |
def testShortTimeoutWait(self): |
| 236 |
self._addThread(target=self._TimeoutWait, args=(0.1, "T1")) |
| 237 |
self._addThread(target=self._TimeoutWait, args=(0.1, "T1")) |
| 238 |
self._waitThreads()
|
| 239 |
self.assertEqual(self.done.get_nowait(), "T1") |
| 240 |
self.assertEqual(self.done.get_nowait(), "T1") |
| 241 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 242 |
|
| 243 |
def testZeroTimeoutWait(self): |
| 244 |
self._addThread(target=self._TimeoutWait, args=(0, "T0")) |
| 245 |
self._addThread(target=self._TimeoutWait, args=(0, "T0")) |
| 246 |
self._addThread(target=self._TimeoutWait, args=(0, "T0")) |
| 247 |
self._waitThreads()
|
| 248 |
self.assertEqual(self.done.get_nowait(), "T0") |
| 249 |
self.assertEqual(self.done.get_nowait(), "T0") |
| 250 |
self.assertEqual(self.done.get_nowait(), "T0") |
| 251 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 252 |
|
| 253 |
|
| 254 |
class TestSharedLock(_ThreadedTestCase): |
| 255 |
"""SharedLock tests"""
|
| 256 |
|
| 257 |
def setUp(self): |
| 258 |
_ThreadedTestCase.setUp(self)
|
| 259 |
self.sl = locking.SharedLock()
|
| 260 |
|
| 261 |
def testSequenceAndOwnership(self): |
| 262 |
self.assert_(not self.sl._is_owned()) |
| 263 |
self.sl.acquire(shared=1) |
| 264 |
self.assert_(self.sl._is_owned()) |
| 265 |
self.assert_(self.sl._is_owned(shared=1)) |
| 266 |
self.assert_(not self.sl._is_owned(shared=0)) |
| 267 |
self.sl.release()
|
| 268 |
self.assert_(not self.sl._is_owned()) |
| 269 |
self.sl.acquire()
|
| 270 |
self.assert_(self.sl._is_owned()) |
| 271 |
self.assert_(not self.sl._is_owned(shared=1)) |
| 272 |
self.assert_(self.sl._is_owned(shared=0)) |
| 273 |
self.sl.release()
|
| 274 |
self.assert_(not self.sl._is_owned()) |
| 275 |
self.sl.acquire(shared=1) |
| 276 |
self.assert_(self.sl._is_owned()) |
| 277 |
self.assert_(self.sl._is_owned(shared=1)) |
| 278 |
self.assert_(not self.sl._is_owned(shared=0)) |
| 279 |
self.sl.release()
|
| 280 |
self.assert_(not self.sl._is_owned()) |
| 281 |
|
| 282 |
def testBooleanValue(self): |
| 283 |
# semaphores are supposed to return a true value on a successful acquire
|
| 284 |
self.assert_(self.sl.acquire(shared=1)) |
| 285 |
self.sl.release()
|
| 286 |
self.assert_(self.sl.acquire()) |
| 287 |
self.sl.release()
|
| 288 |
|
| 289 |
def testDoubleLockingStoE(self): |
| 290 |
self.sl.acquire(shared=1) |
| 291 |
self.assertRaises(AssertionError, self.sl.acquire) |
| 292 |
|
| 293 |
def testDoubleLockingEtoS(self): |
| 294 |
self.sl.acquire()
|
| 295 |
self.assertRaises(AssertionError, self.sl.acquire, shared=1) |
| 296 |
|
| 297 |
def testDoubleLockingStoS(self): |
| 298 |
self.sl.acquire(shared=1) |
| 299 |
self.assertRaises(AssertionError, self.sl.acquire, shared=1) |
| 300 |
|
| 301 |
def testDoubleLockingEtoE(self): |
| 302 |
self.sl.acquire()
|
| 303 |
self.assertRaises(AssertionError, self.sl.acquire) |
| 304 |
|
| 305 |
# helper functions: called in a separate thread they acquire the lock, send
|
| 306 |
# their identifier on the done queue, then release it.
|
| 307 |
def _doItSharer(self): |
| 308 |
try:
|
| 309 |
self.sl.acquire(shared=1) |
| 310 |
self.done.put('SHR') |
| 311 |
self.sl.release()
|
| 312 |
except errors.LockError:
|
| 313 |
self.done.put('ERR') |
| 314 |
|
| 315 |
def _doItExclusive(self): |
| 316 |
try:
|
| 317 |
self.sl.acquire()
|
| 318 |
self.done.put('EXC') |
| 319 |
self.sl.release()
|
| 320 |
except errors.LockError:
|
| 321 |
self.done.put('ERR') |
| 322 |
|
| 323 |
def _doItDelete(self): |
| 324 |
try:
|
| 325 |
self.sl.delete()
|
| 326 |
self.done.put('DEL') |
| 327 |
except errors.LockError:
|
| 328 |
self.done.put('ERR') |
| 329 |
|
| 330 |
def testSharersCanCoexist(self): |
| 331 |
self.sl.acquire(shared=1) |
| 332 |
threading.Thread(target=self._doItSharer).start()
|
| 333 |
self.assert_(self.done.get(True, 1)) |
| 334 |
self.sl.release()
|
| 335 |
|
| 336 |
@_Repeat
|
| 337 |
def testExclusiveBlocksExclusive(self): |
| 338 |
self.sl.acquire()
|
| 339 |
self._addThread(target=self._doItExclusive) |
| 340 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 341 |
self.sl.release()
|
| 342 |
self._waitThreads()
|
| 343 |
self.failUnlessEqual(self.done.get_nowait(), 'EXC') |
| 344 |
|
| 345 |
@_Repeat
|
| 346 |
def testExclusiveBlocksDelete(self): |
| 347 |
self.sl.acquire()
|
| 348 |
self._addThread(target=self._doItDelete) |
| 349 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 350 |
self.sl.release()
|
| 351 |
self._waitThreads()
|
| 352 |
self.failUnlessEqual(self.done.get_nowait(), 'DEL') |
| 353 |
self.sl = locking.SharedLock()
|
| 354 |
|
| 355 |
@_Repeat
|
| 356 |
def testExclusiveBlocksSharer(self): |
| 357 |
self.sl.acquire()
|
| 358 |
self._addThread(target=self._doItSharer) |
| 359 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 360 |
self.sl.release()
|
| 361 |
self._waitThreads()
|
| 362 |
self.failUnlessEqual(self.done.get_nowait(), 'SHR') |
| 363 |
|
| 364 |
@_Repeat
|
| 365 |
def testSharerBlocksExclusive(self): |
| 366 |
self.sl.acquire(shared=1) |
| 367 |
self._addThread(target=self._doItExclusive) |
| 368 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 369 |
self.sl.release()
|
| 370 |
self._waitThreads()
|
| 371 |
self.failUnlessEqual(self.done.get_nowait(), 'EXC') |
| 372 |
|
| 373 |
@_Repeat
|
| 374 |
def testSharerBlocksDelete(self): |
| 375 |
self.sl.acquire(shared=1) |
| 376 |
self._addThread(target=self._doItDelete) |
| 377 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 378 |
self.sl.release()
|
| 379 |
self._waitThreads()
|
| 380 |
self.failUnlessEqual(self.done.get_nowait(), 'DEL') |
| 381 |
self.sl = locking.SharedLock()
|
| 382 |
|
| 383 |
@_Repeat
|
| 384 |
def testWaitingExclusiveBlocksSharer(self): |
| 385 |
"""SKIPPED testWaitingExclusiveBlockSharer"""
|
| 386 |
return
|
| 387 |
|
| 388 |
self.sl.acquire(shared=1) |
| 389 |
# the lock is acquired in shared mode...
|
| 390 |
self._addThread(target=self._doItExclusive) |
| 391 |
# ...but now an exclusive is waiting...
|
| 392 |
self._addThread(target=self._doItSharer) |
| 393 |
# ...so the sharer should be blocked as well
|
| 394 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 395 |
self.sl.release()
|
| 396 |
self._waitThreads()
|
| 397 |
# The exclusive passed before
|
| 398 |
self.failUnlessEqual(self.done.get_nowait(), 'EXC') |
| 399 |
self.failUnlessEqual(self.done.get_nowait(), 'SHR') |
| 400 |
|
| 401 |
@_Repeat
|
| 402 |
def testWaitingSharerBlocksExclusive(self): |
| 403 |
"""SKIPPED testWaitingSharerBlocksExclusive"""
|
| 404 |
return
|
| 405 |
|
| 406 |
self.sl.acquire()
|
| 407 |
# the lock is acquired in exclusive mode...
|
| 408 |
self._addThread(target=self._doItSharer) |
| 409 |
# ...but now a sharer is waiting...
|
| 410 |
self._addThread(target=self._doItExclusive) |
| 411 |
# ...the exclusive is waiting too...
|
| 412 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 413 |
self.sl.release()
|
| 414 |
self._waitThreads()
|
| 415 |
# The sharer passed before
|
| 416 |
self.assertEqual(self.done.get_nowait(), 'SHR') |
| 417 |
self.assertEqual(self.done.get_nowait(), 'EXC') |
| 418 |
|
| 419 |
def testDelete(self): |
| 420 |
self.sl.delete()
|
| 421 |
self.assertRaises(errors.LockError, self.sl.acquire) |
| 422 |
self.assertRaises(errors.LockError, self.sl.acquire, shared=1) |
| 423 |
self.assertRaises(errors.LockError, self.sl.delete) |
| 424 |
|
| 425 |
def testDeleteTimeout(self): |
| 426 |
self.sl.delete(timeout=60) |
| 427 |
|
| 428 |
def testNoDeleteIfSharer(self): |
| 429 |
self.sl.acquire(shared=1) |
| 430 |
self.assertRaises(AssertionError, self.sl.delete) |
| 431 |
|
| 432 |
@_Repeat
|
| 433 |
def testDeletePendingSharersExclusiveDelete(self): |
| 434 |
self.sl.acquire()
|
| 435 |
self._addThread(target=self._doItSharer) |
| 436 |
self._addThread(target=self._doItSharer) |
| 437 |
self._addThread(target=self._doItExclusive) |
| 438 |
self._addThread(target=self._doItDelete) |
| 439 |
self.sl.delete()
|
| 440 |
self._waitThreads()
|
| 441 |
# The threads who were pending return ERR
|
| 442 |
for _ in range(4): |
| 443 |
self.assertEqual(self.done.get_nowait(), 'ERR') |
| 444 |
self.sl = locking.SharedLock()
|
| 445 |
|
| 446 |
@_Repeat
|
| 447 |
def testDeletePendingDeleteExclusiveSharers(self): |
| 448 |
self.sl.acquire()
|
| 449 |
self._addThread(target=self._doItDelete) |
| 450 |
self._addThread(target=self._doItExclusive) |
| 451 |
self._addThread(target=self._doItSharer) |
| 452 |
self._addThread(target=self._doItSharer) |
| 453 |
self.sl.delete()
|
| 454 |
self._waitThreads()
|
| 455 |
# The two threads who were pending return both ERR
|
| 456 |
self.assertEqual(self.done.get_nowait(), 'ERR') |
| 457 |
self.assertEqual(self.done.get_nowait(), 'ERR') |
| 458 |
self.assertEqual(self.done.get_nowait(), 'ERR') |
| 459 |
self.assertEqual(self.done.get_nowait(), 'ERR') |
| 460 |
self.sl = locking.SharedLock()
|
| 461 |
|
| 462 |
@_Repeat
|
| 463 |
def testExclusiveAcquireTimeout(self): |
| 464 |
for shared in [0, 1]: |
| 465 |
on_queue = threading.Event() |
| 466 |
release_exclusive = threading.Event() |
| 467 |
|
| 468 |
def _LockExclusive(): |
| 469 |
self.sl.acquire(shared=0, test_notify=on_queue.set) |
| 470 |
self.done.put("A: start wait") |
| 471 |
release_exclusive.wait() |
| 472 |
self.done.put("A: end wait") |
| 473 |
self.sl.release()
|
| 474 |
|
| 475 |
# Start thread to hold lock in exclusive mode
|
| 476 |
self._addThread(target=_LockExclusive)
|
| 477 |
|
| 478 |
# Wait for wait to begin
|
| 479 |
self.assertEqual(self.done.get(timeout=60), "A: start wait") |
| 480 |
|
| 481 |
# Wait up to 60s to get lock, but release exclusive lock as soon as we're
|
| 482 |
# on the queue
|
| 483 |
self.failUnless(self.sl.acquire(shared=shared, timeout=60, |
| 484 |
test_notify=release_exclusive.set)) |
| 485 |
|
| 486 |
self.done.put("got 2nd") |
| 487 |
self.sl.release()
|
| 488 |
|
| 489 |
self._waitThreads()
|
| 490 |
|
| 491 |
self.assertEqual(self.done.get_nowait(), "A: end wait") |
| 492 |
self.assertEqual(self.done.get_nowait(), "got 2nd") |
| 493 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 494 |
|
| 495 |
@_Repeat
|
| 496 |
def testAcquireExpiringTimeout(self): |
| 497 |
def _AcquireWithTimeout(shared, timeout): |
| 498 |
if not self.sl.acquire(shared=shared, timeout=timeout): |
| 499 |
self.done.put("timeout") |
| 500 |
|
| 501 |
for shared in [0, 1]: |
| 502 |
# Lock exclusively
|
| 503 |
self.sl.acquire()
|
| 504 |
|
| 505 |
# Start shared acquires with timeout between 0 and 20 ms
|
| 506 |
for i in range(11): |
| 507 |
self._addThread(target=_AcquireWithTimeout,
|
| 508 |
args=(shared, i * 2.0 / 1000.0)) |
| 509 |
|
| 510 |
# Wait for threads to finish (makes sure the acquire timeout expires
|
| 511 |
# before releasing the lock)
|
| 512 |
self._waitThreads()
|
| 513 |
|
| 514 |
# Release lock
|
| 515 |
self.sl.release()
|
| 516 |
|
| 517 |
for _ in range(11): |
| 518 |
self.assertEqual(self.done.get_nowait(), "timeout") |
| 519 |
|
| 520 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 521 |
|
| 522 |
@_Repeat
|
| 523 |
def testSharedSkipExclusiveAcquires(self): |
| 524 |
# Tests whether shared acquires jump in front of exclusive acquires in the
|
| 525 |
# queue.
|
| 526 |
|
| 527 |
def _Acquire(shared, name, notify_ev, wait_ev): |
| 528 |
if notify_ev:
|
| 529 |
notify_fn = notify_ev.set |
| 530 |
else:
|
| 531 |
notify_fn = None
|
| 532 |
|
| 533 |
if wait_ev:
|
| 534 |
wait_ev.wait() |
| 535 |
|
| 536 |
if not self.sl.acquire(shared=shared, test_notify=notify_fn): |
| 537 |
return
|
| 538 |
|
| 539 |
self.done.put(name)
|
| 540 |
self.sl.release()
|
| 541 |
|
| 542 |
# Get exclusive lock while we fill the queue
|
| 543 |
self.sl.acquire()
|
| 544 |
|
| 545 |
shrcnt1 = 5
|
| 546 |
shrcnt2 = 7
|
| 547 |
shrcnt3 = 9
|
| 548 |
shrcnt4 = 2
|
| 549 |
|
| 550 |
# Add acquires using threading.Event for synchronization. They'll be
|
| 551 |
# acquired exactly in the order defined in this list.
|
| 552 |
acquires = (shrcnt1 * [(1, "shared 1")] + |
| 553 |
3 * [(0, "exclusive 1")] + |
| 554 |
shrcnt2 * [(1, "shared 2")] + |
| 555 |
shrcnt3 * [(1, "shared 3")] + |
| 556 |
shrcnt4 * [(1, "shared 4")] + |
| 557 |
3 * [(0, "exclusive 2")]) |
| 558 |
|
| 559 |
ev_cur = None
|
| 560 |
ev_prev = None
|
| 561 |
|
| 562 |
for args in acquires: |
| 563 |
ev_cur = threading.Event() |
| 564 |
self._addThread(target=_Acquire, args=args + (ev_cur, ev_prev))
|
| 565 |
ev_prev = ev_cur |
| 566 |
|
| 567 |
# Wait for last acquire to start
|
| 568 |
ev_prev.wait() |
| 569 |
|
| 570 |
# Expect 6 pending exclusive acquires and 1 for all shared acquires
|
| 571 |
# together
|
| 572 |
self.assertEqual(self.sl._count_pending(), 7) |
| 573 |
|
| 574 |
# Release exclusive lock and wait
|
| 575 |
self.sl.release()
|
| 576 |
|
| 577 |
self._waitThreads()
|
| 578 |
|
| 579 |
# Check sequence
|
| 580 |
for _ in range(shrcnt1 + shrcnt2 + shrcnt3 + shrcnt4): |
| 581 |
# Shared locks aren't guaranteed to be notified in order, but they'll be
|
| 582 |
# first
|
| 583 |
tmp = self.done.get_nowait()
|
| 584 |
if tmp == "shared 1": |
| 585 |
shrcnt1 -= 1
|
| 586 |
elif tmp == "shared 2": |
| 587 |
shrcnt2 -= 1
|
| 588 |
elif tmp == "shared 3": |
| 589 |
shrcnt3 -= 1
|
| 590 |
elif tmp == "shared 4": |
| 591 |
shrcnt4 -= 1
|
| 592 |
self.assertEqual(shrcnt1, 0) |
| 593 |
self.assertEqual(shrcnt2, 0) |
| 594 |
self.assertEqual(shrcnt3, 0) |
| 595 |
self.assertEqual(shrcnt3, 0) |
| 596 |
|
| 597 |
for _ in range(3): |
| 598 |
self.assertEqual(self.done.get_nowait(), "exclusive 1") |
| 599 |
|
| 600 |
for _ in range(3): |
| 601 |
self.assertEqual(self.done.get_nowait(), "exclusive 2") |
| 602 |
|
| 603 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 604 |
|
| 605 |
@_Repeat
|
| 606 |
def testMixedAcquireTimeout(self): |
| 607 |
sync = threading.Condition() |
| 608 |
|
| 609 |
def _AcquireShared(ev): |
| 610 |
if not self.sl.acquire(shared=1, timeout=None): |
| 611 |
return
|
| 612 |
|
| 613 |
self.done.put("shared") |
| 614 |
|
| 615 |
# Notify main thread
|
| 616 |
ev.set() |
| 617 |
|
| 618 |
# Wait for notification
|
| 619 |
sync.acquire() |
| 620 |
try:
|
| 621 |
sync.wait() |
| 622 |
finally:
|
| 623 |
sync.release() |
| 624 |
|
| 625 |
# Release lock
|
| 626 |
self.sl.release()
|
| 627 |
|
| 628 |
acquires = [] |
| 629 |
for _ in range(3): |
| 630 |
ev = threading.Event() |
| 631 |
self._addThread(target=_AcquireShared, args=(ev, ))
|
| 632 |
acquires.append(ev) |
| 633 |
|
| 634 |
# Wait for all acquires to finish
|
| 635 |
for i in acquires: |
| 636 |
i.wait() |
| 637 |
|
| 638 |
self.assertEqual(self.sl._count_pending(), 0) |
| 639 |
|
| 640 |
# Try to get exclusive lock
|
| 641 |
self.failIf(self.sl.acquire(shared=0, timeout=0.02)) |
| 642 |
|
| 643 |
# Acquire exclusive without timeout
|
| 644 |
exclsync = threading.Condition() |
| 645 |
exclev = threading.Event() |
| 646 |
|
| 647 |
def _AcquireExclusive(): |
| 648 |
if not self.sl.acquire(shared=0): |
| 649 |
return
|
| 650 |
|
| 651 |
self.done.put("exclusive") |
| 652 |
|
| 653 |
# Notify main thread
|
| 654 |
exclev.set() |
| 655 |
|
| 656 |
exclsync.acquire() |
| 657 |
try:
|
| 658 |
exclsync.wait() |
| 659 |
finally:
|
| 660 |
exclsync.release() |
| 661 |
|
| 662 |
self.sl.release()
|
| 663 |
|
| 664 |
self._addThread(target=_AcquireExclusive)
|
| 665 |
|
| 666 |
# Try to get exclusive lock
|
| 667 |
self.failIf(self.sl.acquire(shared=0, timeout=0.02)) |
| 668 |
|
| 669 |
# Make all shared holders release their locks
|
| 670 |
sync.acquire() |
| 671 |
try:
|
| 672 |
sync.notifyAll() |
| 673 |
finally:
|
| 674 |
sync.release() |
| 675 |
|
| 676 |
# Wait for exclusive acquire to succeed
|
| 677 |
exclev.wait() |
| 678 |
|
| 679 |
self.assertEqual(self.sl._count_pending(), 0) |
| 680 |
|
| 681 |
# Try to get exclusive lock
|
| 682 |
self.failIf(self.sl.acquire(shared=0, timeout=0.02)) |
| 683 |
|
| 684 |
def _AcquireSharedSimple(): |
| 685 |
if self.sl.acquire(shared=1, timeout=None): |
| 686 |
self.done.put("shared2") |
| 687 |
self.sl.release()
|
| 688 |
|
| 689 |
for _ in range(10): |
| 690 |
self._addThread(target=_AcquireSharedSimple)
|
| 691 |
|
| 692 |
# Tell exclusive lock to release
|
| 693 |
exclsync.acquire() |
| 694 |
try:
|
| 695 |
exclsync.notifyAll() |
| 696 |
finally:
|
| 697 |
exclsync.release() |
| 698 |
|
| 699 |
# Wait for everything to finish
|
| 700 |
self._waitThreads()
|
| 701 |
|
| 702 |
self.assertEqual(self.sl._count_pending(), 0) |
| 703 |
|
| 704 |
# Check sequence
|
| 705 |
for _ in range(3): |
| 706 |
self.assertEqual(self.done.get_nowait(), "shared") |
| 707 |
|
| 708 |
self.assertEqual(self.done.get_nowait(), "exclusive") |
| 709 |
|
| 710 |
for _ in range(10): |
| 711 |
self.assertEqual(self.done.get_nowait(), "shared2") |
| 712 |
|
| 713 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 714 |
|
| 715 |
|
| 716 |
class TestSSynchronizedDecorator(_ThreadedTestCase): |
| 717 |
"""Shared Lock Synchronized decorator test"""
|
| 718 |
|
| 719 |
def setUp(self): |
| 720 |
_ThreadedTestCase.setUp(self)
|
| 721 |
|
| 722 |
@locking.ssynchronized(_decoratorlock)
|
| 723 |
def _doItExclusive(self): |
| 724 |
self.assert_(_decoratorlock._is_owned())
|
| 725 |
self.done.put('EXC') |
| 726 |
|
| 727 |
@locking.ssynchronized(_decoratorlock, shared=1) |
| 728 |
def _doItSharer(self): |
| 729 |
self.assert_(_decoratorlock._is_owned(shared=1)) |
| 730 |
self.done.put('SHR') |
| 731 |
|
| 732 |
def testDecoratedFunctions(self): |
| 733 |
self._doItExclusive()
|
| 734 |
self.assert_(not _decoratorlock._is_owned()) |
| 735 |
self._doItSharer()
|
| 736 |
self.assert_(not _decoratorlock._is_owned()) |
| 737 |
|
| 738 |
def testSharersCanCoexist(self): |
| 739 |
_decoratorlock.acquire(shared=1)
|
| 740 |
threading.Thread(target=self._doItSharer).start()
|
| 741 |
self.assert_(self.done.get(True, 1)) |
| 742 |
_decoratorlock.release() |
| 743 |
|
| 744 |
@_Repeat
|
| 745 |
def testExclusiveBlocksExclusive(self): |
| 746 |
_decoratorlock.acquire() |
| 747 |
self._addThread(target=self._doItExclusive) |
| 748 |
# give it a bit of time to check that it's not actually doing anything
|
| 749 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 750 |
_decoratorlock.release() |
| 751 |
self._waitThreads()
|
| 752 |
self.failUnlessEqual(self.done.get_nowait(), 'EXC') |
| 753 |
|
| 754 |
@_Repeat
|
| 755 |
def testExclusiveBlocksSharer(self): |
| 756 |
_decoratorlock.acquire() |
| 757 |
self._addThread(target=self._doItSharer) |
| 758 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 759 |
_decoratorlock.release() |
| 760 |
self._waitThreads()
|
| 761 |
self.failUnlessEqual(self.done.get_nowait(), 'SHR') |
| 762 |
|
| 763 |
@_Repeat
|
| 764 |
def testSharerBlocksExclusive(self): |
| 765 |
_decoratorlock.acquire(shared=1)
|
| 766 |
self._addThread(target=self._doItExclusive) |
| 767 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 768 |
_decoratorlock.release() |
| 769 |
self._waitThreads()
|
| 770 |
self.failUnlessEqual(self.done.get_nowait(), 'EXC') |
| 771 |
|
| 772 |
|
| 773 |
class TestLockSet(_ThreadedTestCase): |
| 774 |
"""LockSet tests"""
|
| 775 |
|
| 776 |
def setUp(self): |
| 777 |
_ThreadedTestCase.setUp(self)
|
| 778 |
self._setUpLS()
|
| 779 |
|
| 780 |
def _setUpLS(self): |
| 781 |
"""Helper to (re)initialize the lock set"""
|
| 782 |
self.resources = ['one', 'two', 'three'] |
| 783 |
self.ls = locking.LockSet(members=self.resources) |
| 784 |
|
| 785 |
def testResources(self): |
| 786 |
self.assertEquals(self.ls._names(), set(self.resources)) |
| 787 |
newls = locking.LockSet() |
| 788 |
self.assertEquals(newls._names(), set()) |
| 789 |
|
| 790 |
def testAcquireRelease(self): |
| 791 |
self.assert_(self.ls.acquire('one')) |
| 792 |
self.assertEquals(self.ls._list_owned(), set(['one'])) |
| 793 |
self.ls.release()
|
| 794 |
self.assertEquals(self.ls._list_owned(), set()) |
| 795 |
self.assertEquals(self.ls.acquire(['one']), set(['one'])) |
| 796 |
self.assertEquals(self.ls._list_owned(), set(['one'])) |
| 797 |
self.ls.release()
|
| 798 |
self.assertEquals(self.ls._list_owned(), set()) |
| 799 |
self.ls.acquire(['one', 'two', 'three']) |
| 800 |
self.assertEquals(self.ls._list_owned(), set(['one', 'two', 'three'])) |
| 801 |
self.ls.release('one') |
| 802 |
self.assertEquals(self.ls._list_owned(), set(['two', 'three'])) |
| 803 |
self.ls.release(['three']) |
| 804 |
self.assertEquals(self.ls._list_owned(), set(['two'])) |
| 805 |
self.ls.release()
|
| 806 |
self.assertEquals(self.ls._list_owned(), set()) |
| 807 |
self.assertEquals(self.ls.acquire(['one', 'three']), set(['one', 'three'])) |
| 808 |
self.assertEquals(self.ls._list_owned(), set(['one', 'three'])) |
| 809 |
self.ls.release()
|
| 810 |
self.assertEquals(self.ls._list_owned(), set()) |
| 811 |
|
| 812 |
def testNoDoubleAcquire(self): |
| 813 |
self.ls.acquire('one') |
| 814 |
self.assertRaises(AssertionError, self.ls.acquire, 'one') |
| 815 |
self.assertRaises(AssertionError, self.ls.acquire, ['two']) |
| 816 |
self.assertRaises(AssertionError, self.ls.acquire, ['two', 'three']) |
| 817 |
self.ls.release()
|
| 818 |
self.ls.acquire(['one', 'three']) |
| 819 |
self.ls.release('one') |
| 820 |
self.assertRaises(AssertionError, self.ls.acquire, ['two']) |
| 821 |
self.ls.release('three') |
| 822 |
|
| 823 |
def testNoWrongRelease(self): |
| 824 |
self.assertRaises(AssertionError, self.ls.release) |
| 825 |
self.ls.acquire('one') |
| 826 |
self.assertRaises(AssertionError, self.ls.release, 'two') |
| 827 |
|
| 828 |
def testAddRemove(self): |
| 829 |
self.ls.add('four') |
| 830 |
self.assertEquals(self.ls._list_owned(), set()) |
| 831 |
self.assert_('four' in self.ls._names()) |
| 832 |
self.ls.add(['five', 'six', 'seven'], acquired=1) |
| 833 |
self.assert_('five' in self.ls._names()) |
| 834 |
self.assert_('six' in self.ls._names()) |
| 835 |
self.assert_('seven' in self.ls._names()) |
| 836 |
self.assertEquals(self.ls._list_owned(), set(['five', 'six', 'seven'])) |
| 837 |
self.assertEquals(self.ls.remove(['five', 'six']), ['five', 'six']) |
| 838 |
self.assert_('five' not in self.ls._names()) |
| 839 |
self.assert_('six' not in self.ls._names()) |
| 840 |
self.assertEquals(self.ls._list_owned(), set(['seven'])) |
| 841 |
self.assertRaises(AssertionError, self.ls.add, 'eight', acquired=1) |
| 842 |
self.ls.remove('seven') |
| 843 |
self.assert_('seven' not in self.ls._names()) |
| 844 |
self.assertEquals(self.ls._list_owned(), set([])) |
| 845 |
self.ls.acquire(None, shared=1) |
| 846 |
self.assertRaises(AssertionError, self.ls.add, 'eight') |
| 847 |
self.ls.release()
|
| 848 |
self.ls.acquire(None) |
| 849 |
self.ls.add('eight', acquired=1) |
| 850 |
self.assert_('eight' in self.ls._names()) |
| 851 |
self.assert_('eight' in self.ls._list_owned()) |
| 852 |
self.ls.add('nine') |
| 853 |
self.assert_('nine' in self.ls._names()) |
| 854 |
self.assert_('nine' not in self.ls._list_owned()) |
| 855 |
self.ls.release()
|
| 856 |
self.ls.remove(['two']) |
| 857 |
self.assert_('two' not in self.ls._names()) |
| 858 |
self.ls.acquire('three') |
| 859 |
self.assertEquals(self.ls.remove(['three']), ['three']) |
| 860 |
self.assert_('three' not in self.ls._names()) |
| 861 |
self.assertEquals(self.ls.remove('three'), []) |
| 862 |
self.assertEquals(self.ls.remove(['one', 'three', 'six']), ['one']) |
| 863 |
self.assert_('one' not in self.ls._names()) |
| 864 |
|
| 865 |
def testRemoveNonBlocking(self): |
| 866 |
self.ls.acquire('one') |
| 867 |
self.assertEquals(self.ls.remove('one'), ['one']) |
| 868 |
self.ls.acquire(['two', 'three']) |
| 869 |
self.assertEquals(self.ls.remove(['two', 'three']), |
| 870 |
['two', 'three']) |
| 871 |
|
| 872 |
def testNoDoubleAdd(self): |
| 873 |
self.assertRaises(errors.LockError, self.ls.add, 'two') |
| 874 |
self.ls.add('four') |
| 875 |
self.assertRaises(errors.LockError, self.ls.add, 'four') |
| 876 |
|
| 877 |
def testNoWrongRemoves(self): |
| 878 |
self.ls.acquire(['one', 'three'], shared=1) |
| 879 |
# Cannot remove 'two' while holding something which is not a superset
|
| 880 |
self.assertRaises(AssertionError, self.ls.remove, 'two') |
| 881 |
# Cannot remove 'three' as we are sharing it
|
| 882 |
self.assertRaises(AssertionError, self.ls.remove, 'three') |
| 883 |
|
| 884 |
def testAcquireSetLock(self): |
| 885 |
# acquire the set-lock exclusively
|
| 886 |
self.assertEquals(self.ls.acquire(None), set(['one', 'two', 'three'])) |
| 887 |
self.assertEquals(self.ls._list_owned(), set(['one', 'two', 'three'])) |
| 888 |
self.assertEquals(self.ls._is_owned(), True) |
| 889 |
self.assertEquals(self.ls._names(), set(['one', 'two', 'three'])) |
| 890 |
# I can still add/remove elements...
|
| 891 |
self.assertEquals(self.ls.remove(['two', 'three']), ['two', 'three']) |
| 892 |
self.assert_(self.ls.add('six')) |
| 893 |
self.ls.release()
|
| 894 |
# share the set-lock
|
| 895 |
self.assertEquals(self.ls.acquire(None, shared=1), set(['one', 'six'])) |
| 896 |
# adding new elements is not possible
|
| 897 |
self.assertRaises(AssertionError, self.ls.add, 'five') |
| 898 |
self.ls.release()
|
| 899 |
|
| 900 |
def testAcquireWithRepetitions(self): |
| 901 |
self.assertEquals(self.ls.acquire(['two', 'two', 'three'], shared=1), |
| 902 |
set(['two', 'two', 'three'])) |
| 903 |
self.ls.release(['two', 'two']) |
| 904 |
self.assertEquals(self.ls._list_owned(), set(['three'])) |
| 905 |
|
| 906 |
def testEmptyAcquire(self): |
| 907 |
# Acquire an empty list of locks...
|
| 908 |
self.assertEquals(self.ls.acquire([]), set()) |
| 909 |
self.assertEquals(self.ls._list_owned(), set()) |
| 910 |
# New locks can still be addded
|
| 911 |
self.assert_(self.ls.add('six')) |
| 912 |
# "re-acquiring" is not an issue, since we had really acquired nothing
|
| 913 |
self.assertEquals(self.ls.acquire([], shared=1), set()) |
| 914 |
self.assertEquals(self.ls._list_owned(), set()) |
| 915 |
# We haven't really acquired anything, so we cannot release
|
| 916 |
self.assertRaises(AssertionError, self.ls.release) |
| 917 |
|
| 918 |
def _doLockSet(self, names, shared): |
| 919 |
try:
|
| 920 |
self.ls.acquire(names, shared=shared)
|
| 921 |
self.done.put('DONE') |
| 922 |
self.ls.release()
|
| 923 |
except errors.LockError:
|
| 924 |
self.done.put('ERR') |
| 925 |
|
| 926 |
def _doAddSet(self, names): |
| 927 |
try:
|
| 928 |
self.ls.add(names, acquired=1) |
| 929 |
self.done.put('DONE') |
| 930 |
self.ls.release()
|
| 931 |
except errors.LockError:
|
| 932 |
self.done.put('ERR') |
| 933 |
|
| 934 |
def _doRemoveSet(self, names): |
| 935 |
self.done.put(self.ls.remove(names)) |
| 936 |
|
| 937 |
@_Repeat
|
| 938 |
def testConcurrentSharedAcquire(self): |
| 939 |
self.ls.acquire(['one', 'two'], shared=1) |
| 940 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 1)) |
| 941 |
self._waitThreads()
|
| 942 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 943 |
self._addThread(target=self._doLockSet, args=(['one', 'two', 'three'], 1)) |
| 944 |
self._waitThreads()
|
| 945 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 946 |
self._addThread(target=self._doLockSet, args=('three', 1)) |
| 947 |
self._waitThreads()
|
| 948 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 949 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 0)) |
| 950 |
self._addThread(target=self._doLockSet, args=(['two', 'three'], 0)) |
| 951 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 952 |
self.ls.release()
|
| 953 |
self._waitThreads()
|
| 954 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 955 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 956 |
|
| 957 |
@_Repeat
|
| 958 |
def testConcurrentExclusiveAcquire(self): |
| 959 |
self.ls.acquire(['one', 'two']) |
| 960 |
self._addThread(target=self._doLockSet, args=('three', 1)) |
| 961 |
self._waitThreads()
|
| 962 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 963 |
self._addThread(target=self._doLockSet, args=('three', 0)) |
| 964 |
self._waitThreads()
|
| 965 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 966 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 967 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 0)) |
| 968 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 1)) |
| 969 |
self._addThread(target=self._doLockSet, args=('one', 0)) |
| 970 |
self._addThread(target=self._doLockSet, args=('one', 1)) |
| 971 |
self._addThread(target=self._doLockSet, args=(['two', 'three'], 0)) |
| 972 |
self._addThread(target=self._doLockSet, args=(['two', 'three'], 1)) |
| 973 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 974 |
self.ls.release()
|
| 975 |
self._waitThreads()
|
| 976 |
for _ in range(6): |
| 977 |
self.failUnlessEqual(self.done.get_nowait(), 'DONE') |
| 978 |
|
| 979 |
@_Repeat
|
| 980 |
def testSimpleAcquireTimeoutExpiring(self): |
| 981 |
names = sorted(self.ls._names()) |
| 982 |
self.assert_(len(names) >= 3) |
| 983 |
|
| 984 |
# Get name of first lock
|
| 985 |
first = names[0]
|
| 986 |
|
| 987 |
# Get name of last lock
|
| 988 |
last = names.pop() |
| 989 |
|
| 990 |
checks = [ |
| 991 |
# Block first and try to lock it again
|
| 992 |
(first, first), |
| 993 |
|
| 994 |
# Block last and try to lock all locks
|
| 995 |
(None, first),
|
| 996 |
|
| 997 |
# Block last and try to lock it again
|
| 998 |
(last, last), |
| 999 |
] |
| 1000 |
|
| 1001 |
for (wanted, block) in checks: |
| 1002 |
# Lock in exclusive mode
|
| 1003 |
self.assert_(self.ls.acquire(block, shared=0)) |
| 1004 |
|
| 1005 |
def _AcquireOne(): |
| 1006 |
# Try to get the same lock again with a timeout (should never succeed)
|
| 1007 |
acquired = self.ls.acquire(wanted, timeout=0.1, shared=0) |
| 1008 |
if acquired:
|
| 1009 |
self.done.put("acquired") |
| 1010 |
self.ls.release()
|
| 1011 |
else:
|
| 1012 |
self.assert_(acquired is None) |
| 1013 |
self.assert_(not self.ls._list_owned()) |
| 1014 |
self.assert_(not self.ls._is_owned()) |
| 1015 |
self.done.put("not acquired") |
| 1016 |
|
| 1017 |
self._addThread(target=_AcquireOne)
|
| 1018 |
|
| 1019 |
# Wait for timeout in thread to expire
|
| 1020 |
self._waitThreads()
|
| 1021 |
|
| 1022 |
# Release exclusive lock again
|
| 1023 |
self.ls.release()
|
| 1024 |
|
| 1025 |
self.assertEqual(self.done.get_nowait(), "not acquired") |
| 1026 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1027 |
|
| 1028 |
@_Repeat
|
| 1029 |
def testDelayedAndExpiringLockAcquire(self): |
| 1030 |
self._setUpLS()
|
| 1031 |
self.ls.add(['five', 'six', 'seven', 'eight', 'nine']) |
| 1032 |
|
| 1033 |
for expire in (False, True): |
| 1034 |
names = sorted(self.ls._names()) |
| 1035 |
self.assertEqual(len(names), 8) |
| 1036 |
|
| 1037 |
lock_ev = dict([(i, threading.Event()) for i in names]) |
| 1038 |
|
| 1039 |
# Lock all in exclusive mode
|
| 1040 |
self.assert_(self.ls.acquire(names, shared=0)) |
| 1041 |
|
| 1042 |
if expire:
|
| 1043 |
# We'll wait at least 300ms per lock
|
| 1044 |
lockwait = len(names) * [0.3] |
| 1045 |
|
| 1046 |
# Fail if we can't acquire all locks in 400ms. There are 8 locks, so
|
| 1047 |
# this gives us up to 2.4s to fail.
|
| 1048 |
lockall_timeout = 0.4
|
| 1049 |
else:
|
| 1050 |
# This should finish rather quickly
|
| 1051 |
lockwait = None
|
| 1052 |
lockall_timeout = len(names) * 5.0 |
| 1053 |
|
| 1054 |
def _LockAll(): |
| 1055 |
def acquire_notification(name): |
| 1056 |
if not expire: |
| 1057 |
self.done.put("getting %s" % name) |
| 1058 |
|
| 1059 |
# Kick next lock
|
| 1060 |
lock_ev[name].set() |
| 1061 |
|
| 1062 |
if self.ls.acquire(names, shared=0, timeout=lockall_timeout, |
| 1063 |
test_notify=acquire_notification): |
| 1064 |
self.done.put("got all") |
| 1065 |
self.ls.release()
|
| 1066 |
else:
|
| 1067 |
self.done.put("timeout on all") |
| 1068 |
|
| 1069 |
# Notify all locks
|
| 1070 |
for ev in lock_ev.values(): |
| 1071 |
ev.set() |
| 1072 |
|
| 1073 |
t = self._addThread(target=_LockAll)
|
| 1074 |
|
| 1075 |
for idx, name in enumerate(names): |
| 1076 |
# Wait for actual acquire on this lock to start
|
| 1077 |
lock_ev[name].wait(10.0)
|
| 1078 |
|
| 1079 |
if expire and t.isAlive(): |
| 1080 |
# Wait some time after getting the notification to make sure the lock
|
| 1081 |
# acquire will expire
|
| 1082 |
SafeSleep(lockwait[idx]) |
| 1083 |
|
| 1084 |
self.ls.release(names=name)
|
| 1085 |
|
| 1086 |
self.assert_(not self.ls._list_owned()) |
| 1087 |
|
| 1088 |
self._waitThreads()
|
| 1089 |
|
| 1090 |
if expire:
|
| 1091 |
# Not checking which locks were actually acquired. Doing so would be
|
| 1092 |
# too timing-dependant.
|
| 1093 |
self.assertEqual(self.done.get_nowait(), "timeout on all") |
| 1094 |
else:
|
| 1095 |
for i in names: |
| 1096 |
self.assertEqual(self.done.get_nowait(), "getting %s" % i) |
| 1097 |
self.assertEqual(self.done.get_nowait(), "got all") |
| 1098 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1099 |
|
| 1100 |
@_Repeat
|
| 1101 |
def testConcurrentRemove(self): |
| 1102 |
self.ls.add('four') |
| 1103 |
self.ls.acquire(['one', 'two', 'four']) |
| 1104 |
self._addThread(target=self._doLockSet, args=(['one', 'four'], 0)) |
| 1105 |
self._addThread(target=self._doLockSet, args=(['one', 'four'], 1)) |
| 1106 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 0)) |
| 1107 |
self._addThread(target=self._doLockSet, args=(['one', 'two'], 1)) |
| 1108 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1109 |
self.ls.remove('one') |
| 1110 |
self.ls.release()
|
| 1111 |
self._waitThreads()
|
| 1112 |
for i in range(4): |
| 1113 |
self.failUnlessEqual(self.done.get_nowait(), 'ERR') |
| 1114 |
self.ls.add(['five', 'six'], acquired=1) |
| 1115 |
self._addThread(target=self._doLockSet, args=(['three', 'six'], 1)) |
| 1116 |
self._addThread(target=self._doLockSet, args=(['three', 'six'], 0)) |
| 1117 |
self._addThread(target=self._doLockSet, args=(['four', 'six'], 1)) |
| 1118 |
self._addThread(target=self._doLockSet, args=(['four', 'six'], 0)) |
| 1119 |
self.ls.remove('five') |
| 1120 |
self.ls.release()
|
| 1121 |
self._waitThreads()
|
| 1122 |
for i in range(4): |
| 1123 |
self.failUnlessEqual(self.done.get_nowait(), 'DONE') |
| 1124 |
self.ls.acquire(['three', 'four']) |
| 1125 |
self._addThread(target=self._doRemoveSet, args=(['four', 'six'], )) |
| 1126 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1127 |
self.ls.remove('four') |
| 1128 |
self._waitThreads()
|
| 1129 |
self.assertEqual(self.done.get_nowait(), ['six']) |
| 1130 |
self._addThread(target=self._doRemoveSet, args=(['two'])) |
| 1131 |
self._waitThreads()
|
| 1132 |
self.assertEqual(self.done.get_nowait(), ['two']) |
| 1133 |
self.ls.release()
|
| 1134 |
# reset lockset
|
| 1135 |
self._setUpLS()
|
| 1136 |
|
| 1137 |
@_Repeat
|
| 1138 |
def testConcurrentSharedSetLock(self): |
| 1139 |
# share the set-lock...
|
| 1140 |
self.ls.acquire(None, shared=1) |
| 1141 |
# ...another thread can share it too
|
| 1142 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1143 |
self._waitThreads()
|
| 1144 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1145 |
# ...or just share some elements
|
| 1146 |
self._addThread(target=self._doLockSet, args=(['one', 'three'], 1)) |
| 1147 |
self._waitThreads()
|
| 1148 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1149 |
# ...but not add new ones or remove any
|
| 1150 |
t = self._addThread(target=self._doAddSet, args=(['nine'])) |
| 1151 |
self._addThread(target=self._doRemoveSet, args=(['two'], )) |
| 1152 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1153 |
# this just releases the set-lock
|
| 1154 |
self.ls.release([])
|
| 1155 |
t.join(60)
|
| 1156 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1157 |
# release the lock on the actual elements so remove() can proceed too
|
| 1158 |
self.ls.release()
|
| 1159 |
self._waitThreads()
|
| 1160 |
self.failUnlessEqual(self.done.get_nowait(), ['two']) |
| 1161 |
# reset lockset
|
| 1162 |
self._setUpLS()
|
| 1163 |
|
| 1164 |
@_Repeat
|
| 1165 |
def testConcurrentExclusiveSetLock(self): |
| 1166 |
# acquire the set-lock...
|
| 1167 |
self.ls.acquire(None, shared=0) |
| 1168 |
# ...no one can do anything else
|
| 1169 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1170 |
self._addThread(target=self._doLockSet, args=(None, 0)) |
| 1171 |
self._addThread(target=self._doLockSet, args=(['three'], 0)) |
| 1172 |
self._addThread(target=self._doLockSet, args=(['two'], 1)) |
| 1173 |
self._addThread(target=self._doAddSet, args=(['nine'])) |
| 1174 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1175 |
self.ls.release()
|
| 1176 |
self._waitThreads()
|
| 1177 |
for _ in range(5): |
| 1178 |
self.assertEqual(self.done.get(True, 1), 'DONE') |
| 1179 |
# cleanup
|
| 1180 |
self._setUpLS()
|
| 1181 |
|
| 1182 |
@_Repeat
|
| 1183 |
def testConcurrentSetLockAdd(self): |
| 1184 |
self.ls.acquire('one') |
| 1185 |
# Another thread wants the whole SetLock
|
| 1186 |
self._addThread(target=self._doLockSet, args=(None, 0)) |
| 1187 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1188 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1189 |
self.assertRaises(AssertionError, self.ls.add, 'four') |
| 1190 |
self.ls.release()
|
| 1191 |
self._waitThreads()
|
| 1192 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1193 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1194 |
self.ls.acquire(None) |
| 1195 |
self._addThread(target=self._doLockSet, args=(None, 0)) |
| 1196 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1197 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1198 |
self.ls.add('four') |
| 1199 |
self.ls.add('five', acquired=1) |
| 1200 |
self.ls.add('six', acquired=1, shared=1) |
| 1201 |
self.assertEquals(self.ls._list_owned(), |
| 1202 |
set(['one', 'two', 'three', 'five', 'six'])) |
| 1203 |
self.assertEquals(self.ls._is_owned(), True) |
| 1204 |
self.assertEquals(self.ls._names(), |
| 1205 |
set(['one', 'two', 'three', 'four', 'five', 'six'])) |
| 1206 |
self.ls.release()
|
| 1207 |
self._waitThreads()
|
| 1208 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1209 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1210 |
self._setUpLS()
|
| 1211 |
|
| 1212 |
@_Repeat
|
| 1213 |
def testEmptyLockSet(self): |
| 1214 |
# get the set-lock
|
| 1215 |
self.assertEqual(self.ls.acquire(None), set(['one', 'two', 'three'])) |
| 1216 |
# now empty it...
|
| 1217 |
self.ls.remove(['one', 'two', 'three']) |
| 1218 |
# and adds/locks by another thread still wait
|
| 1219 |
self._addThread(target=self._doAddSet, args=(['nine'])) |
| 1220 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1221 |
self._addThread(target=self._doLockSet, args=(None, 0)) |
| 1222 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1223 |
self.ls.release()
|
| 1224 |
self._waitThreads()
|
| 1225 |
for _ in range(3): |
| 1226 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1227 |
# empty it again...
|
| 1228 |
self.assertEqual(self.ls.remove(['nine']), ['nine']) |
| 1229 |
# now share it...
|
| 1230 |
self.assertEqual(self.ls.acquire(None, shared=1), set()) |
| 1231 |
# other sharers can go, adds still wait
|
| 1232 |
self._addThread(target=self._doLockSet, args=(None, 1)) |
| 1233 |
self._waitThreads()
|
| 1234 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1235 |
self._addThread(target=self._doAddSet, args=(['nine'])) |
| 1236 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1237 |
self.ls.release()
|
| 1238 |
self._waitThreads()
|
| 1239 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1240 |
self._setUpLS()
|
| 1241 |
|
| 1242 |
|
| 1243 |
class TestGanetiLockManager(_ThreadedTestCase): |
| 1244 |
|
| 1245 |
def setUp(self): |
| 1246 |
_ThreadedTestCase.setUp(self)
|
| 1247 |
self.nodes=['n1', 'n2'] |
| 1248 |
self.instances=['i1', 'i2', 'i3'] |
| 1249 |
self.GL = locking.GanetiLockManager(nodes=self.nodes, |
| 1250 |
instances=self.instances)
|
| 1251 |
|
| 1252 |
def tearDown(self): |
| 1253 |
# Don't try this at home...
|
| 1254 |
locking.GanetiLockManager._instance = None
|
| 1255 |
|
| 1256 |
def testLockingConstants(self): |
| 1257 |
# The locking library internally cheats by assuming its constants have some
|
| 1258 |
# relationships with each other. Check those hold true.
|
| 1259 |
# This relationship is also used in the Processor to recursively acquire
|
| 1260 |
# the right locks. Again, please don't break it.
|
| 1261 |
for i in range(len(locking.LEVELS)): |
| 1262 |
self.assertEqual(i, locking.LEVELS[i])
|
| 1263 |
|
| 1264 |
def testDoubleGLFails(self): |
| 1265 |
self.assertRaises(AssertionError, locking.GanetiLockManager) |
| 1266 |
|
| 1267 |
def testLockNames(self): |
| 1268 |
self.assertEqual(self.GL._names(locking.LEVEL_CLUSTER), set(['BGL'])) |
| 1269 |
self.assertEqual(self.GL._names(locking.LEVEL_NODE), set(self.nodes)) |
| 1270 |
self.assertEqual(self.GL._names(locking.LEVEL_INSTANCE), |
| 1271 |
set(self.instances)) |
| 1272 |
|
| 1273 |
def testInitAndResources(self): |
| 1274 |
locking.GanetiLockManager._instance = None
|
| 1275 |
self.GL = locking.GanetiLockManager()
|
| 1276 |
self.assertEqual(self.GL._names(locking.LEVEL_CLUSTER), set(['BGL'])) |
| 1277 |
self.assertEqual(self.GL._names(locking.LEVEL_NODE), set()) |
| 1278 |
self.assertEqual(self.GL._names(locking.LEVEL_INSTANCE), set()) |
| 1279 |
|
| 1280 |
locking.GanetiLockManager._instance = None
|
| 1281 |
self.GL = locking.GanetiLockManager(nodes=self.nodes) |
| 1282 |
self.assertEqual(self.GL._names(locking.LEVEL_CLUSTER), set(['BGL'])) |
| 1283 |
self.assertEqual(self.GL._names(locking.LEVEL_NODE), set(self.nodes)) |
| 1284 |
self.assertEqual(self.GL._names(locking.LEVEL_INSTANCE), set()) |
| 1285 |
|
| 1286 |
locking.GanetiLockManager._instance = None
|
| 1287 |
self.GL = locking.GanetiLockManager(instances=self.instances) |
| 1288 |
self.assertEqual(self.GL._names(locking.LEVEL_CLUSTER), set(['BGL'])) |
| 1289 |
self.assertEqual(self.GL._names(locking.LEVEL_NODE), set()) |
| 1290 |
self.assertEqual(self.GL._names(locking.LEVEL_INSTANCE), |
| 1291 |
set(self.instances)) |
| 1292 |
|
| 1293 |
def testAcquireRelease(self): |
| 1294 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1295 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_CLUSTER), set(['BGL'])) |
| 1296 |
self.GL.acquire(locking.LEVEL_INSTANCE, ['i1']) |
| 1297 |
self.GL.acquire(locking.LEVEL_NODE, ['n1', 'n2'], shared=1) |
| 1298 |
self.GL.release(locking.LEVEL_NODE, ['n2']) |
| 1299 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_NODE), set(['n1'])) |
| 1300 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_INSTANCE), set(['i1'])) |
| 1301 |
self.GL.release(locking.LEVEL_NODE)
|
| 1302 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_NODE), set()) |
| 1303 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_INSTANCE), set(['i1'])) |
| 1304 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1305 |
self.assertRaises(errors.LockError, self.GL.acquire, |
| 1306 |
locking.LEVEL_INSTANCE, ['i5'])
|
| 1307 |
self.GL.acquire(locking.LEVEL_INSTANCE, ['i3'], shared=1) |
| 1308 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_INSTANCE), set(['i3'])) |
| 1309 |
|
| 1310 |
def testAcquireWholeSets(self): |
| 1311 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1312 |
self.assertEquals(self.GL.acquire(locking.LEVEL_INSTANCE, None), |
| 1313 |
set(self.instances)) |
| 1314 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_INSTANCE), |
| 1315 |
set(self.instances)) |
| 1316 |
self.assertEquals(self.GL.acquire(locking.LEVEL_NODE, None, shared=1), |
| 1317 |
set(self.nodes)) |
| 1318 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_NODE), |
| 1319 |
set(self.nodes)) |
| 1320 |
self.GL.release(locking.LEVEL_NODE)
|
| 1321 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1322 |
self.GL.release(locking.LEVEL_CLUSTER)
|
| 1323 |
|
| 1324 |
def testAcquireWholeAndPartial(self): |
| 1325 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1326 |
self.assertEquals(self.GL.acquire(locking.LEVEL_INSTANCE, None), |
| 1327 |
set(self.instances)) |
| 1328 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_INSTANCE), |
| 1329 |
set(self.instances)) |
| 1330 |
self.assertEquals(self.GL.acquire(locking.LEVEL_NODE, ['n2'], shared=1), |
| 1331 |
set(['n2'])) |
| 1332 |
self.assertEquals(self.GL._list_owned(locking.LEVEL_NODE), |
| 1333 |
set(['n2'])) |
| 1334 |
self.GL.release(locking.LEVEL_NODE)
|
| 1335 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1336 |
self.GL.release(locking.LEVEL_CLUSTER)
|
| 1337 |
|
| 1338 |
def testBGLDependency(self): |
| 1339 |
self.assertRaises(AssertionError, self.GL.acquire, |
| 1340 |
locking.LEVEL_NODE, ['n1', 'n2']) |
| 1341 |
self.assertRaises(AssertionError, self.GL.acquire, |
| 1342 |
locking.LEVEL_INSTANCE, ['i3'])
|
| 1343 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1344 |
self.GL.acquire(locking.LEVEL_NODE, ['n1']) |
| 1345 |
self.assertRaises(AssertionError, self.GL.release, |
| 1346 |
locking.LEVEL_CLUSTER, ['BGL'])
|
| 1347 |
self.assertRaises(AssertionError, self.GL.release, |
| 1348 |
locking.LEVEL_CLUSTER) |
| 1349 |
self.GL.release(locking.LEVEL_NODE)
|
| 1350 |
self.GL.acquire(locking.LEVEL_INSTANCE, ['i1', 'i2']) |
| 1351 |
self.assertRaises(AssertionError, self.GL.release, |
| 1352 |
locking.LEVEL_CLUSTER, ['BGL'])
|
| 1353 |
self.assertRaises(AssertionError, self.GL.release, |
| 1354 |
locking.LEVEL_CLUSTER) |
| 1355 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1356 |
|
| 1357 |
def testWrongOrder(self): |
| 1358 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1359 |
self.GL.acquire(locking.LEVEL_NODE, ['n2']) |
| 1360 |
self.assertRaises(AssertionError, self.GL.acquire, |
| 1361 |
locking.LEVEL_NODE, ['n1'])
|
| 1362 |
self.assertRaises(AssertionError, self.GL.acquire, |
| 1363 |
locking.LEVEL_INSTANCE, ['i2'])
|
| 1364 |
|
| 1365 |
# Helper function to run as a thread that shared the BGL and then acquires
|
| 1366 |
# some locks at another level.
|
| 1367 |
def _doLock(self, level, names, shared): |
| 1368 |
try:
|
| 1369 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1370 |
self.GL.acquire(level, names, shared=shared)
|
| 1371 |
self.done.put('DONE') |
| 1372 |
self.GL.release(level)
|
| 1373 |
self.GL.release(locking.LEVEL_CLUSTER)
|
| 1374 |
except errors.LockError:
|
| 1375 |
self.done.put('ERR') |
| 1376 |
|
| 1377 |
@_Repeat
|
| 1378 |
def testConcurrency(self): |
| 1379 |
self.GL.acquire(locking.LEVEL_CLUSTER, ['BGL'], shared=1) |
| 1380 |
self._addThread(target=self._doLock, |
| 1381 |
args=(locking.LEVEL_INSTANCE, 'i1', 1)) |
| 1382 |
self._waitThreads()
|
| 1383 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1384 |
self.GL.acquire(locking.LEVEL_INSTANCE, ['i3']) |
| 1385 |
self._addThread(target=self._doLock, |
| 1386 |
args=(locking.LEVEL_INSTANCE, 'i1', 1)) |
| 1387 |
self._waitThreads()
|
| 1388 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1389 |
self._addThread(target=self._doLock, |
| 1390 |
args=(locking.LEVEL_INSTANCE, 'i3', 1)) |
| 1391 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1392 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1393 |
self._waitThreads()
|
| 1394 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1395 |
self.GL.acquire(locking.LEVEL_INSTANCE, ['i2'], shared=1) |
| 1396 |
self._addThread(target=self._doLock, |
| 1397 |
args=(locking.LEVEL_INSTANCE, 'i2', 1)) |
| 1398 |
self._waitThreads()
|
| 1399 |
self.assertEqual(self.done.get_nowait(), 'DONE') |
| 1400 |
self._addThread(target=self._doLock, |
| 1401 |
args=(locking.LEVEL_INSTANCE, 'i2', 0)) |
| 1402 |
self.assertRaises(Queue.Empty, self.done.get_nowait) |
| 1403 |
self.GL.release(locking.LEVEL_INSTANCE)
|
| 1404 |
self._waitThreads()
|
| 1405 |
self.assertEqual(self.done.get(True, 1), 'DONE') |
| 1406 |
self.GL.release(locking.LEVEL_CLUSTER, ['BGL']) |
| 1407 |
|
| 1408 |
|
| 1409 |
if __name__ == '__main__': |
| 1410 |
testutils.GanetiTestProgram() |