Benjamin Peterson | 90f5ba5 | 2010-03-11 22:53:45 +0000 | [diff] [blame] | 1 | #!/usr/bin/env python3 |
Georg Brandl | 86b2fb9 | 2008-07-16 03:43:04 +0000 | [diff] [blame] | 2 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 3 | # |
| 4 | # Unit tests for the multiprocessing package |
| 5 | # |
| 6 | |
| 7 | import unittest |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 8 | import queue as pyqueue |
| 9 | import time |
Alexandre Vassalotti | c57a84f | 2009-07-17 12:07:01 +0000 | [diff] [blame] | 10 | import io |
Antoine Pitrou | de911b2 | 2011-12-21 11:03:24 +0100 | [diff] [blame] | 11 | import itertools |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 12 | import sys |
| 13 | import os |
| 14 | import gc |
Antoine Pitrou | c824e9a | 2011-04-05 18:11:33 +0200 | [diff] [blame] | 15 | import errno |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 16 | import signal |
| 17 | import array |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 18 | import socket |
| 19 | import random |
| 20 | import logging |
R. David Murray | a21e4ca | 2009-03-31 23:16:50 +0000 | [diff] [blame] | 21 | import test.support |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 22 | |
Benjamin Peterson | e5384b0 | 2008-10-04 22:00:42 +0000 | [diff] [blame] | 23 | |
R. David Murray | a21e4ca | 2009-03-31 23:16:50 +0000 | [diff] [blame] | 24 | # Skip tests if _multiprocessing wasn't built. |
| 25 | _multiprocessing = test.support.import_module('_multiprocessing') |
| 26 | # Skip tests if sem_open implementation is broken. |
| 27 | test.support.import_module('multiprocessing.synchronize') |
Victor Stinner | 45df820 | 2010-04-28 22:31:17 +0000 | [diff] [blame] | 28 | # import threading after _multiprocessing to raise a more revelant error |
| 29 | # message: "No module named _multiprocessing". _multiprocessing is not compiled |
| 30 | # without thread support. |
| 31 | import threading |
Benjamin Peterson | e5384b0 | 2008-10-04 22:00:42 +0000 | [diff] [blame] | 32 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 33 | import multiprocessing.dummy |
| 34 | import multiprocessing.connection |
| 35 | import multiprocessing.managers |
| 36 | import multiprocessing.heap |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 37 | import multiprocessing.pool |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 38 | |
Charles-François Natali | bc8f082 | 2011-09-20 20:36:51 +0200 | [diff] [blame] | 39 | from multiprocessing import util |
| 40 | |
| 41 | try: |
| 42 | from multiprocessing import reduction |
| 43 | HAS_REDUCTION = True |
| 44 | except ImportError: |
| 45 | HAS_REDUCTION = False |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 46 | |
Brian Curtin | afa88b5 | 2010-10-07 01:12:19 +0000 | [diff] [blame] | 47 | try: |
| 48 | from multiprocessing.sharedctypes import Value, copy |
| 49 | HAS_SHAREDCTYPES = True |
| 50 | except ImportError: |
| 51 | HAS_SHAREDCTYPES = False |
| 52 | |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 53 | try: |
| 54 | import msvcrt |
| 55 | except ImportError: |
| 56 | msvcrt = None |
| 57 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 58 | # |
| 59 | # |
| 60 | # |
| 61 | |
Benjamin Peterson | 2bc91df | 2008-07-13 18:45:30 +0000 | [diff] [blame] | 62 | def latin(s): |
| 63 | return s.encode('latin') |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 64 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 65 | # |
| 66 | # Constants |
| 67 | # |
| 68 | |
| 69 | LOG_LEVEL = util.SUBWARNING |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 70 | #LOG_LEVEL = logging.DEBUG |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 71 | |
| 72 | DELTA = 0.1 |
| 73 | CHECK_TIMINGS = False # making true makes tests take a lot longer |
| 74 | # and can sometimes cause some non-serious |
| 75 | # failures because some calls block a bit |
| 76 | # longer than expected |
| 77 | if CHECK_TIMINGS: |
| 78 | TIMEOUT1, TIMEOUT2, TIMEOUT3 = 0.82, 0.35, 1.4 |
| 79 | else: |
| 80 | TIMEOUT1, TIMEOUT2, TIMEOUT3 = 0.1, 0.1, 0.1 |
| 81 | |
| 82 | HAVE_GETVALUE = not getattr(_multiprocessing, |
| 83 | 'HAVE_BROKEN_SEM_GETVALUE', False) |
| 84 | |
Jesse Noller | 6214edd | 2009-01-19 16:23:53 +0000 | [diff] [blame] | 85 | WIN32 = (sys.platform == "win32") |
Antoine Pitrou | 176f07d | 2011-06-06 19:35:31 +0200 | [diff] [blame] | 86 | if WIN32: |
Antoine Pitrou | 23bba4c | 2012-04-18 20:51:15 +0200 | [diff] [blame] | 87 | from _winapi import WaitForSingleObject, INFINITE, WAIT_OBJECT_0 |
Antoine Pitrou | 176f07d | 2011-06-06 19:35:31 +0200 | [diff] [blame] | 88 | |
| 89 | def wait_for_handle(handle, timeout): |
| 90 | if timeout is None or timeout < 0.0: |
| 91 | timeout = INFINITE |
| 92 | else: |
| 93 | timeout = int(1000 * timeout) |
| 94 | return WaitForSingleObject(handle, timeout) == WAIT_OBJECT_0 |
| 95 | else: |
| 96 | from select import select |
| 97 | _select = util._eintr_retry(select) |
| 98 | |
| 99 | def wait_for_handle(handle, timeout): |
| 100 | if timeout is not None and timeout < 0.0: |
| 101 | timeout = None |
| 102 | return handle in _select([handle], [], [], timeout)[0] |
Jesse Noller | 6214edd | 2009-01-19 16:23:53 +0000 | [diff] [blame] | 103 | |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 104 | try: |
| 105 | MAXFD = os.sysconf("SC_OPEN_MAX") |
| 106 | except: |
| 107 | MAXFD = 256 |
| 108 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 109 | # |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 110 | # Some tests require ctypes |
| 111 | # |
| 112 | |
| 113 | try: |
Florent Xicluna | aa17106 | 2010-08-14 15:56:42 +0000 | [diff] [blame] | 114 | from ctypes import Structure, c_int, c_double |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 115 | except ImportError: |
| 116 | Structure = object |
| 117 | c_int = c_double = None |
| 118 | |
Charles-François Natali | 221ef67 | 2011-11-22 18:55:22 +0100 | [diff] [blame] | 119 | |
| 120 | def check_enough_semaphores(): |
| 121 | """Check that the system supports enough semaphores to run the test.""" |
| 122 | # minimum number of semaphores available according to POSIX |
| 123 | nsems_min = 256 |
| 124 | try: |
| 125 | nsems = os.sysconf("SC_SEM_NSEMS_MAX") |
| 126 | except (AttributeError, ValueError): |
| 127 | # sysconf not available or setting not available |
| 128 | return |
| 129 | if nsems == -1 or nsems >= nsems_min: |
| 130 | return |
| 131 | raise unittest.SkipTest("The OS doesn't support enough semaphores " |
| 132 | "to run the test (required: %d)." % nsems_min) |
| 133 | |
| 134 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 135 | # |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 136 | # Creates a wrapper for a function which records the time it takes to finish |
| 137 | # |
| 138 | |
| 139 | class TimingWrapper(object): |
| 140 | |
| 141 | def __init__(self, func): |
| 142 | self.func = func |
| 143 | self.elapsed = None |
| 144 | |
| 145 | def __call__(self, *args, **kwds): |
| 146 | t = time.time() |
| 147 | try: |
| 148 | return self.func(*args, **kwds) |
| 149 | finally: |
| 150 | self.elapsed = time.time() - t |
| 151 | |
| 152 | # |
| 153 | # Base class for test cases |
| 154 | # |
| 155 | |
| 156 | class BaseTestCase(object): |
| 157 | |
| 158 | ALLOWED_TYPES = ('processes', 'manager', 'threads') |
| 159 | |
| 160 | def assertTimingAlmostEqual(self, a, b): |
| 161 | if CHECK_TIMINGS: |
| 162 | self.assertAlmostEqual(a, b, 1) |
| 163 | |
| 164 | def assertReturnsIfImplemented(self, value, func, *args): |
| 165 | try: |
| 166 | res = func(*args) |
| 167 | except NotImplementedError: |
| 168 | pass |
| 169 | else: |
| 170 | return self.assertEqual(value, res) |
| 171 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 172 | # For the sanity of Windows users, rather than crashing or freezing in |
| 173 | # multiple ways. |
| 174 | def __reduce__(self, *args): |
| 175 | raise NotImplementedError("shouldn't try to pickle a test case") |
| 176 | |
| 177 | __reduce_ex__ = __reduce__ |
| 178 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 179 | # |
| 180 | # Return the value of a semaphore |
| 181 | # |
| 182 | |
| 183 | def get_value(self): |
| 184 | try: |
| 185 | return self.get_value() |
| 186 | except AttributeError: |
| 187 | try: |
| 188 | return self._Semaphore__value |
| 189 | except AttributeError: |
| 190 | try: |
| 191 | return self._value |
| 192 | except AttributeError: |
| 193 | raise NotImplementedError |
| 194 | |
| 195 | # |
| 196 | # Testcases |
| 197 | # |
| 198 | |
| 199 | class _TestProcess(BaseTestCase): |
| 200 | |
| 201 | ALLOWED_TYPES = ('processes', 'threads') |
| 202 | |
| 203 | def test_current(self): |
| 204 | if self.TYPE == 'threads': |
| 205 | return |
| 206 | |
| 207 | current = self.current_process() |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 208 | authkey = current.authkey |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 209 | |
| 210 | self.assertTrue(current.is_alive()) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 211 | self.assertTrue(not current.daemon) |
Ezio Melotti | e961593 | 2010-01-24 19:26:24 +0000 | [diff] [blame] | 212 | self.assertIsInstance(authkey, bytes) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 213 | self.assertTrue(len(authkey) > 0) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 214 | self.assertEqual(current.ident, os.getpid()) |
| 215 | self.assertEqual(current.exitcode, None) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 216 | |
Antoine Pitrou | 0bd4deb | 2011-02-25 22:07:43 +0000 | [diff] [blame] | 217 | def test_daemon_argument(self): |
| 218 | if self.TYPE == "threads": |
| 219 | return |
| 220 | |
| 221 | # By default uses the current process's daemon flag. |
| 222 | proc0 = self.Process(target=self._test) |
Antoine Pitrou | ec78522 | 2011-03-02 00:15:44 +0000 | [diff] [blame] | 223 | self.assertEqual(proc0.daemon, self.current_process().daemon) |
Antoine Pitrou | 0bd4deb | 2011-02-25 22:07:43 +0000 | [diff] [blame] | 224 | proc1 = self.Process(target=self._test, daemon=True) |
| 225 | self.assertTrue(proc1.daemon) |
| 226 | proc2 = self.Process(target=self._test, daemon=False) |
| 227 | self.assertFalse(proc2.daemon) |
| 228 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 229 | @classmethod |
| 230 | def _test(cls, q, *args, **kwds): |
| 231 | current = cls.current_process() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 232 | q.put(args) |
| 233 | q.put(kwds) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 234 | q.put(current.name) |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 235 | if cls.TYPE != 'threads': |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 236 | q.put(bytes(current.authkey)) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 237 | q.put(current.pid) |
| 238 | |
| 239 | def test_process(self): |
| 240 | q = self.Queue(1) |
| 241 | e = self.Event() |
| 242 | args = (q, 1, 2) |
| 243 | kwargs = {'hello':23, 'bye':2.54} |
| 244 | name = 'SomeProcess' |
| 245 | p = self.Process( |
| 246 | target=self._test, args=args, kwargs=kwargs, name=name |
| 247 | ) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 248 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 249 | current = self.current_process() |
| 250 | |
| 251 | if self.TYPE != 'threads': |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 252 | self.assertEqual(p.authkey, current.authkey) |
| 253 | self.assertEqual(p.is_alive(), False) |
| 254 | self.assertEqual(p.daemon, True) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 255 | self.assertNotIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 256 | self.assertTrue(type(self.active_children()) is list) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 257 | self.assertEqual(p.exitcode, None) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 258 | |
| 259 | p.start() |
| 260 | |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 261 | self.assertEqual(p.exitcode, None) |
| 262 | self.assertEqual(p.is_alive(), True) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 263 | self.assertIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 264 | |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 265 | self.assertEqual(q.get(), args[1:]) |
| 266 | self.assertEqual(q.get(), kwargs) |
| 267 | self.assertEqual(q.get(), p.name) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 268 | if self.TYPE != 'threads': |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 269 | self.assertEqual(q.get(), current.authkey) |
| 270 | self.assertEqual(q.get(), p.pid) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 271 | |
| 272 | p.join() |
| 273 | |
Ezio Melotti | b3aedd4 | 2010-11-20 19:04:17 +0000 | [diff] [blame] | 274 | self.assertEqual(p.exitcode, 0) |
| 275 | self.assertEqual(p.is_alive(), False) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 276 | self.assertNotIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 277 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 278 | @classmethod |
| 279 | def _test_terminate(cls): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 280 | time.sleep(1000) |
| 281 | |
| 282 | def test_terminate(self): |
| 283 | if self.TYPE == 'threads': |
| 284 | return |
| 285 | |
| 286 | p = self.Process(target=self._test_terminate) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 287 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 288 | p.start() |
| 289 | |
| 290 | self.assertEqual(p.is_alive(), True) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 291 | self.assertIn(p, self.active_children()) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 292 | self.assertEqual(p.exitcode, None) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 293 | |
| 294 | p.terminate() |
| 295 | |
| 296 | join = TimingWrapper(p.join) |
| 297 | self.assertEqual(join(), None) |
| 298 | self.assertTimingAlmostEqual(join.elapsed, 0.0) |
| 299 | |
| 300 | self.assertEqual(p.is_alive(), False) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 301 | self.assertNotIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 302 | |
| 303 | p.join() |
| 304 | |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 305 | # XXX sometimes get p.exitcode == 0 on Windows ... |
| 306 | #self.assertEqual(p.exitcode, -signal.SIGTERM) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 307 | |
| 308 | def test_cpu_count(self): |
| 309 | try: |
| 310 | cpus = multiprocessing.cpu_count() |
| 311 | except NotImplementedError: |
| 312 | cpus = 1 |
| 313 | self.assertTrue(type(cpus) is int) |
| 314 | self.assertTrue(cpus >= 1) |
| 315 | |
| 316 | def test_active_children(self): |
| 317 | self.assertEqual(type(self.active_children()), list) |
| 318 | |
| 319 | p = self.Process(target=time.sleep, args=(DELTA,)) |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 320 | self.assertNotIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 321 | |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 322 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 323 | p.start() |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 324 | self.assertIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 325 | |
| 326 | p.join() |
Benjamin Peterson | 577473f | 2010-01-19 00:09:57 +0000 | [diff] [blame] | 327 | self.assertNotIn(p, self.active_children()) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 328 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 329 | @classmethod |
| 330 | def _test_recursion(cls, wconn, id): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 331 | from multiprocessing import forking |
| 332 | wconn.send(id) |
| 333 | if len(id) < 2: |
| 334 | for i in range(2): |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 335 | p = cls.Process( |
| 336 | target=cls._test_recursion, args=(wconn, id+[i]) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 337 | ) |
| 338 | p.start() |
| 339 | p.join() |
| 340 | |
| 341 | def test_recursion(self): |
| 342 | rconn, wconn = self.Pipe(duplex=False) |
| 343 | self._test_recursion(wconn, []) |
| 344 | |
| 345 | time.sleep(DELTA) |
| 346 | result = [] |
| 347 | while rconn.poll(): |
| 348 | result.append(rconn.recv()) |
| 349 | |
| 350 | expected = [ |
| 351 | [], |
| 352 | [0], |
| 353 | [0, 0], |
| 354 | [0, 1], |
| 355 | [1], |
| 356 | [1, 0], |
| 357 | [1, 1] |
| 358 | ] |
| 359 | self.assertEqual(result, expected) |
| 360 | |
Antoine Pitrou | 176f07d | 2011-06-06 19:35:31 +0200 | [diff] [blame] | 361 | @classmethod |
| 362 | def _test_sentinel(cls, event): |
| 363 | event.wait(10.0) |
| 364 | |
| 365 | def test_sentinel(self): |
| 366 | if self.TYPE == "threads": |
| 367 | return |
| 368 | event = self.Event() |
| 369 | p = self.Process(target=self._test_sentinel, args=(event,)) |
| 370 | with self.assertRaises(ValueError): |
| 371 | p.sentinel |
| 372 | p.start() |
| 373 | self.addCleanup(p.join) |
| 374 | sentinel = p.sentinel |
| 375 | self.assertIsInstance(sentinel, int) |
| 376 | self.assertFalse(wait_for_handle(sentinel, timeout=0.0)) |
| 377 | event.set() |
| 378 | p.join() |
| 379 | self.assertTrue(wait_for_handle(sentinel, timeout=DELTA)) |
| 380 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 381 | # |
| 382 | # |
| 383 | # |
| 384 | |
| 385 | class _UpperCaser(multiprocessing.Process): |
| 386 | |
| 387 | def __init__(self): |
| 388 | multiprocessing.Process.__init__(self) |
| 389 | self.child_conn, self.parent_conn = multiprocessing.Pipe() |
| 390 | |
| 391 | def run(self): |
| 392 | self.parent_conn.close() |
| 393 | for s in iter(self.child_conn.recv, None): |
| 394 | self.child_conn.send(s.upper()) |
| 395 | self.child_conn.close() |
| 396 | |
| 397 | def submit(self, s): |
| 398 | assert type(s) is str |
| 399 | self.parent_conn.send(s) |
| 400 | return self.parent_conn.recv() |
| 401 | |
| 402 | def stop(self): |
| 403 | self.parent_conn.send(None) |
| 404 | self.parent_conn.close() |
| 405 | self.child_conn.close() |
| 406 | |
| 407 | class _TestSubclassingProcess(BaseTestCase): |
| 408 | |
| 409 | ALLOWED_TYPES = ('processes',) |
| 410 | |
| 411 | def test_subclassing(self): |
| 412 | uppercaser = _UpperCaser() |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 413 | uppercaser.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 414 | uppercaser.start() |
| 415 | self.assertEqual(uppercaser.submit('hello'), 'HELLO') |
| 416 | self.assertEqual(uppercaser.submit('world'), 'WORLD') |
| 417 | uppercaser.stop() |
| 418 | uppercaser.join() |
| 419 | |
Antoine Pitrou | 84a0fbf | 2012-01-27 10:52:37 +0100 | [diff] [blame] | 420 | def test_stderr_flush(self): |
| 421 | # sys.stderr is flushed at process shutdown (issue #13812) |
| 422 | if self.TYPE == "threads": |
| 423 | return |
| 424 | |
| 425 | testfn = test.support.TESTFN |
| 426 | self.addCleanup(test.support.unlink, testfn) |
| 427 | proc = self.Process(target=self._test_stderr_flush, args=(testfn,)) |
| 428 | proc.start() |
| 429 | proc.join() |
| 430 | with open(testfn, 'r') as f: |
| 431 | err = f.read() |
| 432 | # The whole traceback was printed |
| 433 | self.assertIn("ZeroDivisionError", err) |
| 434 | self.assertIn("test_multiprocessing.py", err) |
| 435 | self.assertIn("1/0 # MARKER", err) |
| 436 | |
| 437 | @classmethod |
| 438 | def _test_stderr_flush(cls, testfn): |
| 439 | sys.stderr = open(testfn, 'w') |
| 440 | 1/0 # MARKER |
| 441 | |
| 442 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 443 | # |
| 444 | # |
| 445 | # |
| 446 | |
| 447 | def queue_empty(q): |
| 448 | if hasattr(q, 'empty'): |
| 449 | return q.empty() |
| 450 | else: |
| 451 | return q.qsize() == 0 |
| 452 | |
| 453 | def queue_full(q, maxsize): |
| 454 | if hasattr(q, 'full'): |
| 455 | return q.full() |
| 456 | else: |
| 457 | return q.qsize() == maxsize |
| 458 | |
| 459 | |
| 460 | class _TestQueue(BaseTestCase): |
| 461 | |
| 462 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 463 | @classmethod |
| 464 | def _test_put(cls, queue, child_can_start, parent_can_continue): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 465 | child_can_start.wait() |
| 466 | for i in range(6): |
| 467 | queue.get() |
| 468 | parent_can_continue.set() |
| 469 | |
| 470 | def test_put(self): |
| 471 | MAXSIZE = 6 |
| 472 | queue = self.Queue(maxsize=MAXSIZE) |
| 473 | child_can_start = self.Event() |
| 474 | parent_can_continue = self.Event() |
| 475 | |
| 476 | proc = self.Process( |
| 477 | target=self._test_put, |
| 478 | args=(queue, child_can_start, parent_can_continue) |
| 479 | ) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 480 | proc.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 481 | proc.start() |
| 482 | |
| 483 | self.assertEqual(queue_empty(queue), True) |
| 484 | self.assertEqual(queue_full(queue, MAXSIZE), False) |
| 485 | |
| 486 | queue.put(1) |
| 487 | queue.put(2, True) |
| 488 | queue.put(3, True, None) |
| 489 | queue.put(4, False) |
| 490 | queue.put(5, False, None) |
| 491 | queue.put_nowait(6) |
| 492 | |
| 493 | # the values may be in buffer but not yet in pipe so sleep a bit |
| 494 | time.sleep(DELTA) |
| 495 | |
| 496 | self.assertEqual(queue_empty(queue), False) |
| 497 | self.assertEqual(queue_full(queue, MAXSIZE), True) |
| 498 | |
| 499 | put = TimingWrapper(queue.put) |
| 500 | put_nowait = TimingWrapper(queue.put_nowait) |
| 501 | |
| 502 | self.assertRaises(pyqueue.Full, put, 7, False) |
| 503 | self.assertTimingAlmostEqual(put.elapsed, 0) |
| 504 | |
| 505 | self.assertRaises(pyqueue.Full, put, 7, False, None) |
| 506 | self.assertTimingAlmostEqual(put.elapsed, 0) |
| 507 | |
| 508 | self.assertRaises(pyqueue.Full, put_nowait, 7) |
| 509 | self.assertTimingAlmostEqual(put_nowait.elapsed, 0) |
| 510 | |
| 511 | self.assertRaises(pyqueue.Full, put, 7, True, TIMEOUT1) |
| 512 | self.assertTimingAlmostEqual(put.elapsed, TIMEOUT1) |
| 513 | |
| 514 | self.assertRaises(pyqueue.Full, put, 7, False, TIMEOUT2) |
| 515 | self.assertTimingAlmostEqual(put.elapsed, 0) |
| 516 | |
| 517 | self.assertRaises(pyqueue.Full, put, 7, True, timeout=TIMEOUT3) |
| 518 | self.assertTimingAlmostEqual(put.elapsed, TIMEOUT3) |
| 519 | |
| 520 | child_can_start.set() |
| 521 | parent_can_continue.wait() |
| 522 | |
| 523 | self.assertEqual(queue_empty(queue), True) |
| 524 | self.assertEqual(queue_full(queue, MAXSIZE), False) |
| 525 | |
| 526 | proc.join() |
| 527 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 528 | @classmethod |
| 529 | def _test_get(cls, queue, child_can_start, parent_can_continue): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 530 | child_can_start.wait() |
Benjamin Peterson | b29cbbc | 2008-06-16 20:57:14 +0000 | [diff] [blame] | 531 | #queue.put(1) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 532 | queue.put(2) |
| 533 | queue.put(3) |
| 534 | queue.put(4) |
| 535 | queue.put(5) |
| 536 | parent_can_continue.set() |
| 537 | |
| 538 | def test_get(self): |
| 539 | queue = self.Queue() |
| 540 | child_can_start = self.Event() |
| 541 | parent_can_continue = self.Event() |
| 542 | |
| 543 | proc = self.Process( |
| 544 | target=self._test_get, |
| 545 | args=(queue, child_can_start, parent_can_continue) |
| 546 | ) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 547 | proc.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 548 | proc.start() |
| 549 | |
| 550 | self.assertEqual(queue_empty(queue), True) |
| 551 | |
| 552 | child_can_start.set() |
| 553 | parent_can_continue.wait() |
| 554 | |
| 555 | time.sleep(DELTA) |
| 556 | self.assertEqual(queue_empty(queue), False) |
| 557 | |
Benjamin Peterson | b29cbbc | 2008-06-16 20:57:14 +0000 | [diff] [blame] | 558 | # Hangs unexpectedly, remove for now |
| 559 | #self.assertEqual(queue.get(), 1) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 560 | self.assertEqual(queue.get(True, None), 2) |
| 561 | self.assertEqual(queue.get(True), 3) |
| 562 | self.assertEqual(queue.get(timeout=1), 4) |
| 563 | self.assertEqual(queue.get_nowait(), 5) |
| 564 | |
| 565 | self.assertEqual(queue_empty(queue), True) |
| 566 | |
| 567 | get = TimingWrapper(queue.get) |
| 568 | get_nowait = TimingWrapper(queue.get_nowait) |
| 569 | |
| 570 | self.assertRaises(pyqueue.Empty, get, False) |
| 571 | self.assertTimingAlmostEqual(get.elapsed, 0) |
| 572 | |
| 573 | self.assertRaises(pyqueue.Empty, get, False, None) |
| 574 | self.assertTimingAlmostEqual(get.elapsed, 0) |
| 575 | |
| 576 | self.assertRaises(pyqueue.Empty, get_nowait) |
| 577 | self.assertTimingAlmostEqual(get_nowait.elapsed, 0) |
| 578 | |
| 579 | self.assertRaises(pyqueue.Empty, get, True, TIMEOUT1) |
| 580 | self.assertTimingAlmostEqual(get.elapsed, TIMEOUT1) |
| 581 | |
| 582 | self.assertRaises(pyqueue.Empty, get, False, TIMEOUT2) |
| 583 | self.assertTimingAlmostEqual(get.elapsed, 0) |
| 584 | |
| 585 | self.assertRaises(pyqueue.Empty, get, timeout=TIMEOUT3) |
| 586 | self.assertTimingAlmostEqual(get.elapsed, TIMEOUT3) |
| 587 | |
| 588 | proc.join() |
| 589 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 590 | @classmethod |
| 591 | def _test_fork(cls, queue): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 592 | for i in range(10, 20): |
| 593 | queue.put(i) |
| 594 | # note that at this point the items may only be buffered, so the |
| 595 | # process cannot shutdown until the feeder thread has finished |
| 596 | # pushing items onto the pipe. |
| 597 | |
| 598 | def test_fork(self): |
| 599 | # Old versions of Queue would fail to create a new feeder |
| 600 | # thread for a forked process if the original process had its |
| 601 | # own feeder thread. This test checks that this no longer |
| 602 | # happens. |
| 603 | |
| 604 | queue = self.Queue() |
| 605 | |
| 606 | # put items on queue so that main process starts a feeder thread |
| 607 | for i in range(10): |
| 608 | queue.put(i) |
| 609 | |
| 610 | # wait to make sure thread starts before we fork a new process |
| 611 | time.sleep(DELTA) |
| 612 | |
| 613 | # fork process |
| 614 | p = self.Process(target=self._test_fork, args=(queue,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 615 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 616 | p.start() |
| 617 | |
| 618 | # check that all expected items are in the queue |
| 619 | for i in range(20): |
| 620 | self.assertEqual(queue.get(), i) |
| 621 | self.assertRaises(pyqueue.Empty, queue.get, False) |
| 622 | |
| 623 | p.join() |
| 624 | |
| 625 | def test_qsize(self): |
| 626 | q = self.Queue() |
| 627 | try: |
| 628 | self.assertEqual(q.qsize(), 0) |
| 629 | except NotImplementedError: |
| 630 | return |
| 631 | q.put(1) |
| 632 | self.assertEqual(q.qsize(), 1) |
| 633 | q.put(5) |
| 634 | self.assertEqual(q.qsize(), 2) |
| 635 | q.get() |
| 636 | self.assertEqual(q.qsize(), 1) |
| 637 | q.get() |
| 638 | self.assertEqual(q.qsize(), 0) |
| 639 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 640 | @classmethod |
| 641 | def _test_task_done(cls, q): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 642 | for obj in iter(q.get, None): |
| 643 | time.sleep(DELTA) |
| 644 | q.task_done() |
| 645 | |
| 646 | def test_task_done(self): |
| 647 | queue = self.JoinableQueue() |
| 648 | |
| 649 | if sys.version_info < (2, 5) and not hasattr(queue, 'task_done'): |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 650 | self.skipTest("requires 'queue.task_done()' method") |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 651 | |
| 652 | workers = [self.Process(target=self._test_task_done, args=(queue,)) |
| 653 | for i in range(4)] |
| 654 | |
| 655 | for p in workers: |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 656 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 657 | p.start() |
| 658 | |
| 659 | for i in range(10): |
| 660 | queue.put(i) |
| 661 | |
| 662 | queue.join() |
| 663 | |
| 664 | for p in workers: |
| 665 | queue.put(None) |
| 666 | |
| 667 | for p in workers: |
| 668 | p.join() |
| 669 | |
| 670 | # |
| 671 | # |
| 672 | # |
| 673 | |
| 674 | class _TestLock(BaseTestCase): |
| 675 | |
| 676 | def test_lock(self): |
| 677 | lock = self.Lock() |
| 678 | self.assertEqual(lock.acquire(), True) |
| 679 | self.assertEqual(lock.acquire(False), False) |
| 680 | self.assertEqual(lock.release(), None) |
| 681 | self.assertRaises((ValueError, threading.ThreadError), lock.release) |
| 682 | |
| 683 | def test_rlock(self): |
| 684 | lock = self.RLock() |
| 685 | self.assertEqual(lock.acquire(), True) |
| 686 | self.assertEqual(lock.acquire(), True) |
| 687 | self.assertEqual(lock.acquire(), True) |
| 688 | self.assertEqual(lock.release(), None) |
| 689 | self.assertEqual(lock.release(), None) |
| 690 | self.assertEqual(lock.release(), None) |
| 691 | self.assertRaises((AssertionError, RuntimeError), lock.release) |
| 692 | |
Jesse Noller | f8d0085 | 2009-03-31 03:25:07 +0000 | [diff] [blame] | 693 | def test_lock_context(self): |
| 694 | with self.Lock(): |
| 695 | pass |
| 696 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 697 | |
| 698 | class _TestSemaphore(BaseTestCase): |
| 699 | |
| 700 | def _test_semaphore(self, sem): |
| 701 | self.assertReturnsIfImplemented(2, get_value, sem) |
| 702 | self.assertEqual(sem.acquire(), True) |
| 703 | self.assertReturnsIfImplemented(1, get_value, sem) |
| 704 | self.assertEqual(sem.acquire(), True) |
| 705 | self.assertReturnsIfImplemented(0, get_value, sem) |
| 706 | self.assertEqual(sem.acquire(False), False) |
| 707 | self.assertReturnsIfImplemented(0, get_value, sem) |
| 708 | self.assertEqual(sem.release(), None) |
| 709 | self.assertReturnsIfImplemented(1, get_value, sem) |
| 710 | self.assertEqual(sem.release(), None) |
| 711 | self.assertReturnsIfImplemented(2, get_value, sem) |
| 712 | |
| 713 | def test_semaphore(self): |
| 714 | sem = self.Semaphore(2) |
| 715 | self._test_semaphore(sem) |
| 716 | self.assertEqual(sem.release(), None) |
| 717 | self.assertReturnsIfImplemented(3, get_value, sem) |
| 718 | self.assertEqual(sem.release(), None) |
| 719 | self.assertReturnsIfImplemented(4, get_value, sem) |
| 720 | |
| 721 | def test_bounded_semaphore(self): |
| 722 | sem = self.BoundedSemaphore(2) |
| 723 | self._test_semaphore(sem) |
| 724 | # Currently fails on OS/X |
| 725 | #if HAVE_GETVALUE: |
| 726 | # self.assertRaises(ValueError, sem.release) |
| 727 | # self.assertReturnsIfImplemented(2, get_value, sem) |
| 728 | |
| 729 | def test_timeout(self): |
| 730 | if self.TYPE != 'processes': |
| 731 | return |
| 732 | |
| 733 | sem = self.Semaphore(0) |
| 734 | acquire = TimingWrapper(sem.acquire) |
| 735 | |
| 736 | self.assertEqual(acquire(False), False) |
| 737 | self.assertTimingAlmostEqual(acquire.elapsed, 0.0) |
| 738 | |
| 739 | self.assertEqual(acquire(False, None), False) |
| 740 | self.assertTimingAlmostEqual(acquire.elapsed, 0.0) |
| 741 | |
| 742 | self.assertEqual(acquire(False, TIMEOUT1), False) |
| 743 | self.assertTimingAlmostEqual(acquire.elapsed, 0) |
| 744 | |
| 745 | self.assertEqual(acquire(True, TIMEOUT2), False) |
| 746 | self.assertTimingAlmostEqual(acquire.elapsed, TIMEOUT2) |
| 747 | |
| 748 | self.assertEqual(acquire(timeout=TIMEOUT3), False) |
| 749 | self.assertTimingAlmostEqual(acquire.elapsed, TIMEOUT3) |
| 750 | |
| 751 | |
| 752 | class _TestCondition(BaseTestCase): |
| 753 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 754 | @classmethod |
| 755 | def f(cls, cond, sleeping, woken, timeout=None): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 756 | cond.acquire() |
| 757 | sleeping.release() |
| 758 | cond.wait(timeout) |
| 759 | woken.release() |
| 760 | cond.release() |
| 761 | |
| 762 | def check_invariant(self, cond): |
| 763 | # this is only supposed to succeed when there are no sleepers |
| 764 | if self.TYPE == 'processes': |
| 765 | try: |
| 766 | sleepers = (cond._sleeping_count.get_value() - |
| 767 | cond._woken_count.get_value()) |
| 768 | self.assertEqual(sleepers, 0) |
| 769 | self.assertEqual(cond._wait_semaphore.get_value(), 0) |
| 770 | except NotImplementedError: |
| 771 | pass |
| 772 | |
| 773 | def test_notify(self): |
| 774 | cond = self.Condition() |
| 775 | sleeping = self.Semaphore(0) |
| 776 | woken = self.Semaphore(0) |
| 777 | |
| 778 | p = self.Process(target=self.f, args=(cond, sleeping, woken)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 779 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 780 | p.start() |
| 781 | |
| 782 | p = threading.Thread(target=self.f, args=(cond, sleeping, woken)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 783 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 784 | p.start() |
| 785 | |
| 786 | # wait for both children to start sleeping |
| 787 | sleeping.acquire() |
| 788 | sleeping.acquire() |
| 789 | |
| 790 | # check no process/thread has woken up |
| 791 | time.sleep(DELTA) |
| 792 | self.assertReturnsIfImplemented(0, get_value, woken) |
| 793 | |
| 794 | # wake up one process/thread |
| 795 | cond.acquire() |
| 796 | cond.notify() |
| 797 | cond.release() |
| 798 | |
| 799 | # check one process/thread has woken up |
| 800 | time.sleep(DELTA) |
| 801 | self.assertReturnsIfImplemented(1, get_value, woken) |
| 802 | |
| 803 | # wake up another |
| 804 | cond.acquire() |
| 805 | cond.notify() |
| 806 | cond.release() |
| 807 | |
| 808 | # check other has woken up |
| 809 | time.sleep(DELTA) |
| 810 | self.assertReturnsIfImplemented(2, get_value, woken) |
| 811 | |
| 812 | # check state is not mucked up |
| 813 | self.check_invariant(cond) |
| 814 | p.join() |
| 815 | |
| 816 | def test_notify_all(self): |
| 817 | cond = self.Condition() |
| 818 | sleeping = self.Semaphore(0) |
| 819 | woken = self.Semaphore(0) |
| 820 | |
| 821 | # start some threads/processes which will timeout |
| 822 | for i in range(3): |
| 823 | p = self.Process(target=self.f, |
| 824 | args=(cond, sleeping, woken, TIMEOUT1)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 825 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 826 | p.start() |
| 827 | |
| 828 | t = threading.Thread(target=self.f, |
| 829 | args=(cond, sleeping, woken, TIMEOUT1)) |
Benjamin Peterson | 7275370 | 2008-08-18 18:09:21 +0000 | [diff] [blame] | 830 | t.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 831 | t.start() |
| 832 | |
| 833 | # wait for them all to sleep |
| 834 | for i in range(6): |
| 835 | sleeping.acquire() |
| 836 | |
| 837 | # check they have all timed out |
| 838 | for i in range(6): |
| 839 | woken.acquire() |
| 840 | self.assertReturnsIfImplemented(0, get_value, woken) |
| 841 | |
| 842 | # check state is not mucked up |
| 843 | self.check_invariant(cond) |
| 844 | |
| 845 | # start some more threads/processes |
| 846 | for i in range(3): |
| 847 | p = self.Process(target=self.f, args=(cond, sleeping, woken)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 848 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 849 | p.start() |
| 850 | |
| 851 | t = threading.Thread(target=self.f, args=(cond, sleeping, woken)) |
Benjamin Peterson | 7275370 | 2008-08-18 18:09:21 +0000 | [diff] [blame] | 852 | t.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 853 | t.start() |
| 854 | |
| 855 | # wait for them to all sleep |
| 856 | for i in range(6): |
| 857 | sleeping.acquire() |
| 858 | |
| 859 | # check no process/thread has woken up |
| 860 | time.sleep(DELTA) |
| 861 | self.assertReturnsIfImplemented(0, get_value, woken) |
| 862 | |
| 863 | # wake them all up |
| 864 | cond.acquire() |
| 865 | cond.notify_all() |
| 866 | cond.release() |
| 867 | |
| 868 | # check they have all woken |
Antoine Pitrou | f25a8de | 2011-04-16 21:02:01 +0200 | [diff] [blame] | 869 | for i in range(10): |
| 870 | try: |
| 871 | if get_value(woken) == 6: |
| 872 | break |
| 873 | except NotImplementedError: |
| 874 | break |
| 875 | time.sleep(DELTA) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 876 | self.assertReturnsIfImplemented(6, get_value, woken) |
| 877 | |
| 878 | # check state is not mucked up |
| 879 | self.check_invariant(cond) |
| 880 | |
| 881 | def test_timeout(self): |
| 882 | cond = self.Condition() |
| 883 | wait = TimingWrapper(cond.wait) |
| 884 | cond.acquire() |
| 885 | res = wait(TIMEOUT1) |
| 886 | cond.release() |
Georg Brandl | 65ffae0 | 2010-10-28 09:24:56 +0000 | [diff] [blame] | 887 | self.assertEqual(res, False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 888 | self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1) |
| 889 | |
Charles-François Natali | c8ce715 | 2012-04-17 18:45:57 +0200 | [diff] [blame] | 890 | @classmethod |
| 891 | def _test_waitfor_f(cls, cond, state): |
| 892 | with cond: |
| 893 | state.value = 0 |
| 894 | cond.notify() |
| 895 | result = cond.wait_for(lambda : state.value==4) |
| 896 | if not result or state.value != 4: |
| 897 | sys.exit(1) |
| 898 | |
| 899 | @unittest.skipUnless(HAS_SHAREDCTYPES, 'needs sharedctypes') |
| 900 | def test_waitfor(self): |
| 901 | # based on test in test/lock_tests.py |
| 902 | cond = self.Condition() |
| 903 | state = self.Value('i', -1) |
| 904 | |
| 905 | p = self.Process(target=self._test_waitfor_f, args=(cond, state)) |
| 906 | p.daemon = True |
| 907 | p.start() |
| 908 | |
| 909 | with cond: |
| 910 | result = cond.wait_for(lambda : state.value==0) |
| 911 | self.assertTrue(result) |
| 912 | self.assertEqual(state.value, 0) |
| 913 | |
| 914 | for i in range(4): |
| 915 | time.sleep(0.01) |
| 916 | with cond: |
| 917 | state.value += 1 |
| 918 | cond.notify() |
| 919 | |
| 920 | p.join(5) |
| 921 | self.assertFalse(p.is_alive()) |
| 922 | self.assertEqual(p.exitcode, 0) |
| 923 | |
| 924 | @classmethod |
| 925 | def _test_waitfor_timeout_f(cls, cond, state, success): |
| 926 | with cond: |
| 927 | expected = 0.1 |
| 928 | dt = time.time() |
| 929 | result = cond.wait_for(lambda : state.value==4, timeout=expected) |
| 930 | dt = time.time() - dt |
| 931 | # borrow logic in assertTimeout() from test/lock_tests.py |
| 932 | if not result and expected * 0.6 < dt < expected * 10.0: |
| 933 | success.value = True |
| 934 | |
| 935 | @unittest.skipUnless(HAS_SHAREDCTYPES, 'needs sharedctypes') |
| 936 | def test_waitfor_timeout(self): |
| 937 | # based on test in test/lock_tests.py |
| 938 | cond = self.Condition() |
| 939 | state = self.Value('i', 0) |
| 940 | success = self.Value('i', False) |
| 941 | |
| 942 | p = self.Process(target=self._test_waitfor_timeout_f, |
| 943 | args=(cond, state, success)) |
| 944 | p.daemon = True |
| 945 | p.start() |
| 946 | |
| 947 | # Only increment 3 times, so state == 4 is never reached. |
| 948 | for i in range(3): |
| 949 | time.sleep(0.01) |
| 950 | with cond: |
| 951 | state.value += 1 |
| 952 | cond.notify() |
| 953 | |
| 954 | p.join(5) |
| 955 | self.assertTrue(success.value) |
| 956 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 957 | |
| 958 | class _TestEvent(BaseTestCase): |
| 959 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 960 | @classmethod |
| 961 | def _test_event(cls, event): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 962 | time.sleep(TIMEOUT2) |
| 963 | event.set() |
| 964 | |
| 965 | def test_event(self): |
| 966 | event = self.Event() |
| 967 | wait = TimingWrapper(event.wait) |
| 968 | |
Ezio Melotti | 1392500 | 2011-03-16 11:05:33 +0200 | [diff] [blame] | 969 | # Removed temporarily, due to API shear, this does not |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 970 | # work with threading._Event objects. is_set == isSet |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 971 | self.assertEqual(event.is_set(), False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 972 | |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 973 | # Removed, threading.Event.wait() will return the value of the __flag |
| 974 | # instead of None. API Shear with the semaphore backed mp.Event |
| 975 | self.assertEqual(wait(0.0), False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 976 | self.assertTimingAlmostEqual(wait.elapsed, 0.0) |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 977 | self.assertEqual(wait(TIMEOUT1), False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 978 | self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1) |
| 979 | |
| 980 | event.set() |
| 981 | |
| 982 | # See note above on the API differences |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 983 | self.assertEqual(event.is_set(), True) |
| 984 | self.assertEqual(wait(), True) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 985 | self.assertTimingAlmostEqual(wait.elapsed, 0.0) |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 986 | self.assertEqual(wait(TIMEOUT1), True) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 987 | self.assertTimingAlmostEqual(wait.elapsed, 0.0) |
| 988 | # self.assertEqual(event.is_set(), True) |
| 989 | |
| 990 | event.clear() |
| 991 | |
| 992 | #self.assertEqual(event.is_set(), False) |
| 993 | |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 994 | p = self.Process(target=self._test_event, args=(event,)) |
| 995 | p.daemon = True |
| 996 | p.start() |
Benjamin Peterson | 965ce87 | 2009-04-05 21:24:58 +0000 | [diff] [blame] | 997 | self.assertEqual(wait(), True) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 998 | |
| 999 | # |
| 1000 | # |
| 1001 | # |
| 1002 | |
| 1003 | class _TestValue(BaseTestCase): |
| 1004 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 1005 | ALLOWED_TYPES = ('processes',) |
| 1006 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1007 | codes_values = [ |
| 1008 | ('i', 4343, 24234), |
| 1009 | ('d', 3.625, -4.25), |
| 1010 | ('h', -232, 234), |
| 1011 | ('c', latin('x'), latin('y')) |
| 1012 | ] |
| 1013 | |
Antoine Pitrou | 7744e2a | 2010-11-22 16:26:21 +0000 | [diff] [blame] | 1014 | def setUp(self): |
| 1015 | if not HAS_SHAREDCTYPES: |
| 1016 | self.skipTest("requires multiprocessing.sharedctypes") |
| 1017 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1018 | @classmethod |
| 1019 | def _test(cls, values): |
| 1020 | for sv, cv in zip(values, cls.codes_values): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1021 | sv.value = cv[2] |
| 1022 | |
| 1023 | |
| 1024 | def test_value(self, raw=False): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1025 | if raw: |
| 1026 | values = [self.RawValue(code, value) |
| 1027 | for code, value, _ in self.codes_values] |
| 1028 | else: |
| 1029 | values = [self.Value(code, value) |
| 1030 | for code, value, _ in self.codes_values] |
| 1031 | |
| 1032 | for sv, cv in zip(values, self.codes_values): |
| 1033 | self.assertEqual(sv.value, cv[1]) |
| 1034 | |
| 1035 | proc = self.Process(target=self._test, args=(values,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1036 | proc.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1037 | proc.start() |
| 1038 | proc.join() |
| 1039 | |
| 1040 | for sv, cv in zip(values, self.codes_values): |
| 1041 | self.assertEqual(sv.value, cv[2]) |
| 1042 | |
| 1043 | def test_rawvalue(self): |
| 1044 | self.test_value(raw=True) |
| 1045 | |
| 1046 | def test_getobj_getlock(self): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1047 | val1 = self.Value('i', 5) |
| 1048 | lock1 = val1.get_lock() |
| 1049 | obj1 = val1.get_obj() |
| 1050 | |
| 1051 | val2 = self.Value('i', 5, lock=None) |
| 1052 | lock2 = val2.get_lock() |
| 1053 | obj2 = val2.get_obj() |
| 1054 | |
| 1055 | lock = self.Lock() |
| 1056 | val3 = self.Value('i', 5, lock=lock) |
| 1057 | lock3 = val3.get_lock() |
| 1058 | obj3 = val3.get_obj() |
| 1059 | self.assertEqual(lock, lock3) |
| 1060 | |
Jesse Noller | b0516a6 | 2009-01-18 03:11:38 +0000 | [diff] [blame] | 1061 | arr4 = self.Value('i', 5, lock=False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1062 | self.assertFalse(hasattr(arr4, 'get_lock')) |
| 1063 | self.assertFalse(hasattr(arr4, 'get_obj')) |
| 1064 | |
Jesse Noller | b0516a6 | 2009-01-18 03:11:38 +0000 | [diff] [blame] | 1065 | self.assertRaises(AttributeError, self.Value, 'i', 5, lock='navalue') |
| 1066 | |
| 1067 | arr5 = self.RawValue('i', 5) |
| 1068 | self.assertFalse(hasattr(arr5, 'get_lock')) |
| 1069 | self.assertFalse(hasattr(arr5, 'get_obj')) |
| 1070 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1071 | |
| 1072 | class _TestArray(BaseTestCase): |
| 1073 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 1074 | ALLOWED_TYPES = ('processes',) |
| 1075 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1076 | @classmethod |
| 1077 | def f(cls, seq): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1078 | for i in range(1, len(seq)): |
| 1079 | seq[i] += seq[i-1] |
| 1080 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 1081 | @unittest.skipIf(c_int is None, "requires _ctypes") |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1082 | def test_array(self, raw=False): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1083 | seq = [680, 626, 934, 821, 150, 233, 548, 982, 714, 831] |
| 1084 | if raw: |
| 1085 | arr = self.RawArray('i', seq) |
| 1086 | else: |
| 1087 | arr = self.Array('i', seq) |
| 1088 | |
| 1089 | self.assertEqual(len(arr), len(seq)) |
| 1090 | self.assertEqual(arr[3], seq[3]) |
| 1091 | self.assertEqual(list(arr[2:7]), list(seq[2:7])) |
| 1092 | |
| 1093 | arr[4:8] = seq[4:8] = array.array('i', [1, 2, 3, 4]) |
| 1094 | |
| 1095 | self.assertEqual(list(arr[:]), seq) |
| 1096 | |
| 1097 | self.f(seq) |
| 1098 | |
| 1099 | p = self.Process(target=self.f, args=(arr,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1100 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1101 | p.start() |
| 1102 | p.join() |
| 1103 | |
| 1104 | self.assertEqual(list(arr[:]), seq) |
| 1105 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 1106 | @unittest.skipIf(c_int is None, "requires _ctypes") |
Mark Dickinson | 89461ef | 2011-03-26 10:19:03 +0000 | [diff] [blame] | 1107 | def test_array_from_size(self): |
| 1108 | size = 10 |
| 1109 | # Test for zeroing (see issue #11675). |
| 1110 | # The repetition below strengthens the test by increasing the chances |
| 1111 | # of previously allocated non-zero memory being used for the new array |
| 1112 | # on the 2nd and 3rd loops. |
| 1113 | for _ in range(3): |
| 1114 | arr = self.Array('i', size) |
| 1115 | self.assertEqual(len(arr), size) |
| 1116 | self.assertEqual(list(arr), [0] * size) |
| 1117 | arr[:] = range(10) |
| 1118 | self.assertEqual(list(arr), list(range(10))) |
| 1119 | del arr |
| 1120 | |
| 1121 | @unittest.skipIf(c_int is None, "requires _ctypes") |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1122 | def test_rawarray(self): |
| 1123 | self.test_array(raw=True) |
| 1124 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 1125 | @unittest.skipIf(c_int is None, "requires _ctypes") |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1126 | def test_getobj_getlock_obj(self): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1127 | arr1 = self.Array('i', list(range(10))) |
| 1128 | lock1 = arr1.get_lock() |
| 1129 | obj1 = arr1.get_obj() |
| 1130 | |
| 1131 | arr2 = self.Array('i', list(range(10)), lock=None) |
| 1132 | lock2 = arr2.get_lock() |
| 1133 | obj2 = arr2.get_obj() |
| 1134 | |
| 1135 | lock = self.Lock() |
| 1136 | arr3 = self.Array('i', list(range(10)), lock=lock) |
| 1137 | lock3 = arr3.get_lock() |
| 1138 | obj3 = arr3.get_obj() |
| 1139 | self.assertEqual(lock, lock3) |
| 1140 | |
Jesse Noller | b0516a6 | 2009-01-18 03:11:38 +0000 | [diff] [blame] | 1141 | arr4 = self.Array('i', range(10), lock=False) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1142 | self.assertFalse(hasattr(arr4, 'get_lock')) |
| 1143 | self.assertFalse(hasattr(arr4, 'get_obj')) |
Jesse Noller | b0516a6 | 2009-01-18 03:11:38 +0000 | [diff] [blame] | 1144 | self.assertRaises(AttributeError, |
| 1145 | self.Array, 'i', range(10), lock='notalock') |
| 1146 | |
| 1147 | arr5 = self.RawArray('i', range(10)) |
| 1148 | self.assertFalse(hasattr(arr5, 'get_lock')) |
| 1149 | self.assertFalse(hasattr(arr5, 'get_obj')) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1150 | |
| 1151 | # |
| 1152 | # |
| 1153 | # |
| 1154 | |
| 1155 | class _TestContainers(BaseTestCase): |
| 1156 | |
| 1157 | ALLOWED_TYPES = ('manager',) |
| 1158 | |
| 1159 | def test_list(self): |
| 1160 | a = self.list(list(range(10))) |
| 1161 | self.assertEqual(a[:], list(range(10))) |
| 1162 | |
| 1163 | b = self.list() |
| 1164 | self.assertEqual(b[:], []) |
| 1165 | |
| 1166 | b.extend(list(range(5))) |
| 1167 | self.assertEqual(b[:], list(range(5))) |
| 1168 | |
| 1169 | self.assertEqual(b[2], 2) |
| 1170 | self.assertEqual(b[2:10], [2,3,4]) |
| 1171 | |
| 1172 | b *= 2 |
| 1173 | self.assertEqual(b[:], [0, 1, 2, 3, 4, 0, 1, 2, 3, 4]) |
| 1174 | |
| 1175 | self.assertEqual(b + [5, 6], [0, 1, 2, 3, 4, 0, 1, 2, 3, 4, 5, 6]) |
| 1176 | |
| 1177 | self.assertEqual(a[:], list(range(10))) |
| 1178 | |
| 1179 | d = [a, b] |
| 1180 | e = self.list(d) |
| 1181 | self.assertEqual( |
| 1182 | e[:], |
| 1183 | [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9], [0, 1, 2, 3, 4, 0, 1, 2, 3, 4]] |
| 1184 | ) |
| 1185 | |
| 1186 | f = self.list([a]) |
| 1187 | a.append('hello') |
| 1188 | self.assertEqual(f[:], [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 'hello']]) |
| 1189 | |
| 1190 | def test_dict(self): |
| 1191 | d = self.dict() |
| 1192 | indices = list(range(65, 70)) |
| 1193 | for i in indices: |
| 1194 | d[i] = chr(i) |
| 1195 | self.assertEqual(d.copy(), dict((i, chr(i)) for i in indices)) |
| 1196 | self.assertEqual(sorted(d.keys()), indices) |
| 1197 | self.assertEqual(sorted(d.values()), [chr(i) for i in indices]) |
| 1198 | self.assertEqual(sorted(d.items()), [(i, chr(i)) for i in indices]) |
| 1199 | |
| 1200 | def test_namespace(self): |
| 1201 | n = self.Namespace() |
| 1202 | n.name = 'Bob' |
| 1203 | n.job = 'Builder' |
| 1204 | n._hidden = 'hidden' |
| 1205 | self.assertEqual((n.name, n.job), ('Bob', 'Builder')) |
| 1206 | del n.job |
| 1207 | self.assertEqual(str(n), "Namespace(name='Bob')") |
| 1208 | self.assertTrue(hasattr(n, 'name')) |
| 1209 | self.assertTrue(not hasattr(n, 'job')) |
| 1210 | |
| 1211 | # |
| 1212 | # |
| 1213 | # |
| 1214 | |
| 1215 | def sqr(x, wait=0.0): |
| 1216 | time.sleep(wait) |
| 1217 | return x*x |
Ask Solem | 2afcbf2 | 2010-11-09 20:55:52 +0000 | [diff] [blame] | 1218 | |
Antoine Pitrou | de911b2 | 2011-12-21 11:03:24 +0100 | [diff] [blame] | 1219 | def mul(x, y): |
| 1220 | return x*y |
| 1221 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1222 | class _TestPool(BaseTestCase): |
| 1223 | |
| 1224 | def test_apply(self): |
| 1225 | papply = self.pool.apply |
| 1226 | self.assertEqual(papply(sqr, (5,)), sqr(5)) |
| 1227 | self.assertEqual(papply(sqr, (), {'x':3}), sqr(x=3)) |
| 1228 | |
| 1229 | def test_map(self): |
| 1230 | pmap = self.pool.map |
| 1231 | self.assertEqual(pmap(sqr, list(range(10))), list(map(sqr, list(range(10))))) |
| 1232 | self.assertEqual(pmap(sqr, list(range(100)), chunksize=20), |
| 1233 | list(map(sqr, list(range(100))))) |
| 1234 | |
Antoine Pitrou | de911b2 | 2011-12-21 11:03:24 +0100 | [diff] [blame] | 1235 | def test_starmap(self): |
| 1236 | psmap = self.pool.starmap |
| 1237 | tuples = list(zip(range(10), range(9,-1, -1))) |
| 1238 | self.assertEqual(psmap(mul, tuples), |
| 1239 | list(itertools.starmap(mul, tuples))) |
| 1240 | tuples = list(zip(range(100), range(99,-1, -1))) |
| 1241 | self.assertEqual(psmap(mul, tuples, chunksize=20), |
| 1242 | list(itertools.starmap(mul, tuples))) |
| 1243 | |
| 1244 | def test_starmap_async(self): |
| 1245 | tuples = list(zip(range(100), range(99,-1, -1))) |
| 1246 | self.assertEqual(self.pool.starmap_async(mul, tuples).get(), |
| 1247 | list(itertools.starmap(mul, tuples))) |
| 1248 | |
Alexandre Vassalotti | e52e378 | 2009-07-17 09:18:18 +0000 | [diff] [blame] | 1249 | def test_map_chunksize(self): |
| 1250 | try: |
| 1251 | self.pool.map_async(sqr, [], chunksize=1).get(timeout=TIMEOUT1) |
| 1252 | except multiprocessing.TimeoutError: |
| 1253 | self.fail("pool.map_async with chunksize stalled on null list") |
| 1254 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1255 | def test_async(self): |
| 1256 | res = self.pool.apply_async(sqr, (7, TIMEOUT1,)) |
| 1257 | get = TimingWrapper(res.get) |
| 1258 | self.assertEqual(get(), 49) |
| 1259 | self.assertTimingAlmostEqual(get.elapsed, TIMEOUT1) |
| 1260 | |
| 1261 | def test_async_timeout(self): |
| 1262 | res = self.pool.apply_async(sqr, (6, TIMEOUT2 + 0.2)) |
| 1263 | get = TimingWrapper(res.get) |
| 1264 | self.assertRaises(multiprocessing.TimeoutError, get, timeout=TIMEOUT2) |
| 1265 | self.assertTimingAlmostEqual(get.elapsed, TIMEOUT2) |
| 1266 | |
| 1267 | def test_imap(self): |
| 1268 | it = self.pool.imap(sqr, list(range(10))) |
| 1269 | self.assertEqual(list(it), list(map(sqr, list(range(10))))) |
| 1270 | |
| 1271 | it = self.pool.imap(sqr, list(range(10))) |
| 1272 | for i in range(10): |
| 1273 | self.assertEqual(next(it), i*i) |
| 1274 | self.assertRaises(StopIteration, it.__next__) |
| 1275 | |
| 1276 | it = self.pool.imap(sqr, list(range(1000)), chunksize=100) |
| 1277 | for i in range(1000): |
| 1278 | self.assertEqual(next(it), i*i) |
| 1279 | self.assertRaises(StopIteration, it.__next__) |
| 1280 | |
| 1281 | def test_imap_unordered(self): |
| 1282 | it = self.pool.imap_unordered(sqr, list(range(1000))) |
| 1283 | self.assertEqual(sorted(it), list(map(sqr, list(range(1000))))) |
| 1284 | |
| 1285 | it = self.pool.imap_unordered(sqr, list(range(1000)), chunksize=53) |
| 1286 | self.assertEqual(sorted(it), list(map(sqr, list(range(1000))))) |
| 1287 | |
| 1288 | def test_make_pool(self): |
Victor Stinner | 2fae27b | 2011-06-20 17:53:35 +0200 | [diff] [blame] | 1289 | self.assertRaises(ValueError, multiprocessing.Pool, -1) |
| 1290 | self.assertRaises(ValueError, multiprocessing.Pool, 0) |
| 1291 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1292 | p = multiprocessing.Pool(3) |
| 1293 | self.assertEqual(3, len(p._pool)) |
| 1294 | p.close() |
| 1295 | p.join() |
| 1296 | |
| 1297 | def test_terminate(self): |
| 1298 | if self.TYPE == 'manager': |
| 1299 | # On Unix a forked process increfs each shared object to |
| 1300 | # which its parent process held a reference. If the |
| 1301 | # forked process gets terminated then there is likely to |
| 1302 | # be a reference leak. So to prevent |
| 1303 | # _TestZZZNumberOfObjects from failing we skip this test |
| 1304 | # when using a manager. |
| 1305 | return |
| 1306 | |
| 1307 | result = self.pool.map_async( |
| 1308 | time.sleep, [0.1 for i in range(10000)], chunksize=1 |
| 1309 | ) |
| 1310 | self.pool.terminate() |
| 1311 | join = TimingWrapper(self.pool.join) |
| 1312 | join() |
Victor Stinner | 900189b | 2011-03-24 16:39:07 +0100 | [diff] [blame] | 1313 | self.assertLess(join.elapsed, 0.5) |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1314 | |
Ask Solem | 2afcbf2 | 2010-11-09 20:55:52 +0000 | [diff] [blame] | 1315 | def raising(): |
| 1316 | raise KeyError("key") |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1317 | |
Ask Solem | 2afcbf2 | 2010-11-09 20:55:52 +0000 | [diff] [blame] | 1318 | def unpickleable_result(): |
| 1319 | return lambda: 42 |
| 1320 | |
| 1321 | class _TestPoolWorkerErrors(BaseTestCase): |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1322 | ALLOWED_TYPES = ('processes', ) |
Ask Solem | 2afcbf2 | 2010-11-09 20:55:52 +0000 | [diff] [blame] | 1323 | |
| 1324 | def test_async_error_callback(self): |
| 1325 | p = multiprocessing.Pool(2) |
| 1326 | |
| 1327 | scratchpad = [None] |
| 1328 | def errback(exc): |
| 1329 | scratchpad[0] = exc |
| 1330 | |
| 1331 | res = p.apply_async(raising, error_callback=errback) |
| 1332 | self.assertRaises(KeyError, res.get) |
| 1333 | self.assertTrue(scratchpad[0]) |
| 1334 | self.assertIsInstance(scratchpad[0], KeyError) |
| 1335 | |
| 1336 | p.close() |
| 1337 | p.join() |
| 1338 | |
| 1339 | def test_unpickleable_result(self): |
| 1340 | from multiprocessing.pool import MaybeEncodingError |
| 1341 | p = multiprocessing.Pool(2) |
| 1342 | |
| 1343 | # Make sure we don't lose pool processes because of encoding errors. |
| 1344 | for iteration in range(20): |
| 1345 | |
| 1346 | scratchpad = [None] |
| 1347 | def errback(exc): |
| 1348 | scratchpad[0] = exc |
| 1349 | |
| 1350 | res = p.apply_async(unpickleable_result, error_callback=errback) |
| 1351 | self.assertRaises(MaybeEncodingError, res.get) |
| 1352 | wrapped = scratchpad[0] |
| 1353 | self.assertTrue(wrapped) |
| 1354 | self.assertIsInstance(scratchpad[0], MaybeEncodingError) |
| 1355 | self.assertIsNotNone(wrapped.exc) |
| 1356 | self.assertIsNotNone(wrapped.value) |
| 1357 | |
| 1358 | p.close() |
| 1359 | p.join() |
| 1360 | |
| 1361 | class _TestPoolWorkerLifetime(BaseTestCase): |
| 1362 | ALLOWED_TYPES = ('processes', ) |
| 1363 | |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1364 | def test_pool_worker_lifetime(self): |
| 1365 | p = multiprocessing.Pool(3, maxtasksperchild=10) |
| 1366 | self.assertEqual(3, len(p._pool)) |
| 1367 | origworkerpids = [w.pid for w in p._pool] |
| 1368 | # Run many tasks so each worker gets replaced (hopefully) |
| 1369 | results = [] |
| 1370 | for i in range(100): |
| 1371 | results.append(p.apply_async(sqr, (i, ))) |
| 1372 | # Fetch the results and verify we got the right answers, |
| 1373 | # also ensuring all the tasks have completed. |
| 1374 | for (j, res) in enumerate(results): |
| 1375 | self.assertEqual(res.get(), sqr(j)) |
| 1376 | # Refill the pool |
| 1377 | p._repopulate_pool() |
Florent Xicluna | fb190f6 | 2010-03-04 16:10:10 +0000 | [diff] [blame] | 1378 | # Wait until all workers are alive |
Antoine Pitrou | 540ab06 | 2011-04-06 22:51:17 +0200 | [diff] [blame] | 1379 | # (countdown * DELTA = 5 seconds max startup process time) |
| 1380 | countdown = 50 |
Florent Xicluna | fb190f6 | 2010-03-04 16:10:10 +0000 | [diff] [blame] | 1381 | while countdown and not all(w.is_alive() for w in p._pool): |
| 1382 | countdown -= 1 |
| 1383 | time.sleep(DELTA) |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1384 | finalworkerpids = [w.pid for w in p._pool] |
Florent Xicluna | fb190f6 | 2010-03-04 16:10:10 +0000 | [diff] [blame] | 1385 | # All pids should be assigned. See issue #7805. |
| 1386 | self.assertNotIn(None, origworkerpids) |
| 1387 | self.assertNotIn(None, finalworkerpids) |
| 1388 | # Finally, check that the worker pids have changed |
Jesse Noller | 1f0b658 | 2010-01-27 03:36:01 +0000 | [diff] [blame] | 1389 | self.assertNotEqual(sorted(origworkerpids), sorted(finalworkerpids)) |
| 1390 | p.close() |
| 1391 | p.join() |
| 1392 | |
Charles-François Natali | f8859e1 | 2011-10-24 18:45:29 +0200 | [diff] [blame] | 1393 | def test_pool_worker_lifetime_early_close(self): |
| 1394 | # Issue #10332: closing a pool whose workers have limited lifetimes |
| 1395 | # before all the tasks completed would make join() hang. |
| 1396 | p = multiprocessing.Pool(3, maxtasksperchild=1) |
| 1397 | results = [] |
| 1398 | for i in range(6): |
| 1399 | results.append(p.apply_async(sqr, (i, 0.3))) |
| 1400 | p.close() |
| 1401 | p.join() |
| 1402 | # check the results |
| 1403 | for (j, res) in enumerate(results): |
| 1404 | self.assertEqual(res.get(), sqr(j)) |
| 1405 | |
| 1406 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1407 | # |
| 1408 | # Test that manager has expected number of shared objects left |
| 1409 | # |
| 1410 | |
| 1411 | class _TestZZZNumberOfObjects(BaseTestCase): |
| 1412 | # Because test cases are sorted alphabetically, this one will get |
| 1413 | # run after all the other tests for the manager. It tests that |
| 1414 | # there have been no "reference leaks" for the manager's shared |
| 1415 | # objects. Note the comment in _TestPool.test_terminate(). |
| 1416 | ALLOWED_TYPES = ('manager',) |
| 1417 | |
| 1418 | def test_number_of_objects(self): |
| 1419 | EXPECTED_NUMBER = 1 # the pool object is still alive |
| 1420 | multiprocessing.active_children() # discard dead process objs |
| 1421 | gc.collect() # do garbage collection |
| 1422 | refs = self.manager._number_of_objects() |
Jesse Noller | 63b3a97 | 2009-01-21 02:15:48 +0000 | [diff] [blame] | 1423 | debug_info = self.manager._debug_info() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1424 | if refs != EXPECTED_NUMBER: |
Georg Brandl | 3dbca81 | 2008-07-23 16:10:53 +0000 | [diff] [blame] | 1425 | print(self.manager._debug_info()) |
Jesse Noller | 63b3a97 | 2009-01-21 02:15:48 +0000 | [diff] [blame] | 1426 | print(debug_info) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1427 | |
| 1428 | self.assertEqual(refs, EXPECTED_NUMBER) |
| 1429 | |
| 1430 | # |
| 1431 | # Test of creating a customized manager class |
| 1432 | # |
| 1433 | |
| 1434 | from multiprocessing.managers import BaseManager, BaseProxy, RemoteError |
| 1435 | |
| 1436 | class FooBar(object): |
| 1437 | def f(self): |
| 1438 | return 'f()' |
| 1439 | def g(self): |
| 1440 | raise ValueError |
| 1441 | def _h(self): |
| 1442 | return '_h()' |
| 1443 | |
| 1444 | def baz(): |
| 1445 | for i in range(10): |
| 1446 | yield i*i |
| 1447 | |
| 1448 | class IteratorProxy(BaseProxy): |
Florent Xicluna | aa17106 | 2010-08-14 15:56:42 +0000 | [diff] [blame] | 1449 | _exposed_ = ('__next__',) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1450 | def __iter__(self): |
| 1451 | return self |
| 1452 | def __next__(self): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1453 | return self._callmethod('__next__') |
| 1454 | |
| 1455 | class MyManager(BaseManager): |
| 1456 | pass |
| 1457 | |
| 1458 | MyManager.register('Foo', callable=FooBar) |
| 1459 | MyManager.register('Bar', callable=FooBar, exposed=('f', '_h')) |
| 1460 | MyManager.register('baz', callable=baz, proxytype=IteratorProxy) |
| 1461 | |
| 1462 | |
| 1463 | class _TestMyManager(BaseTestCase): |
| 1464 | |
| 1465 | ALLOWED_TYPES = ('manager',) |
| 1466 | |
| 1467 | def test_mymanager(self): |
| 1468 | manager = MyManager() |
| 1469 | manager.start() |
| 1470 | |
| 1471 | foo = manager.Foo() |
| 1472 | bar = manager.Bar() |
| 1473 | baz = manager.baz() |
| 1474 | |
| 1475 | foo_methods = [name for name in ('f', 'g', '_h') if hasattr(foo, name)] |
| 1476 | bar_methods = [name for name in ('f', 'g', '_h') if hasattr(bar, name)] |
| 1477 | |
| 1478 | self.assertEqual(foo_methods, ['f', 'g']) |
| 1479 | self.assertEqual(bar_methods, ['f', '_h']) |
| 1480 | |
| 1481 | self.assertEqual(foo.f(), 'f()') |
| 1482 | self.assertRaises(ValueError, foo.g) |
| 1483 | self.assertEqual(foo._callmethod('f'), 'f()') |
| 1484 | self.assertRaises(RemoteError, foo._callmethod, '_h') |
| 1485 | |
| 1486 | self.assertEqual(bar.f(), 'f()') |
| 1487 | self.assertEqual(bar._h(), '_h()') |
| 1488 | self.assertEqual(bar._callmethod('f'), 'f()') |
| 1489 | self.assertEqual(bar._callmethod('_h'), '_h()') |
| 1490 | |
| 1491 | self.assertEqual(list(baz), [i*i for i in range(10)]) |
| 1492 | |
| 1493 | manager.shutdown() |
| 1494 | |
| 1495 | # |
| 1496 | # Test of connecting to a remote server and using xmlrpclib for serialization |
| 1497 | # |
| 1498 | |
| 1499 | _queue = pyqueue.Queue() |
| 1500 | def get_queue(): |
| 1501 | return _queue |
| 1502 | |
| 1503 | class QueueManager(BaseManager): |
| 1504 | '''manager class used by server process''' |
| 1505 | QueueManager.register('get_queue', callable=get_queue) |
| 1506 | |
| 1507 | class QueueManager2(BaseManager): |
| 1508 | '''manager class which specifies the same interface as QueueManager''' |
| 1509 | QueueManager2.register('get_queue') |
| 1510 | |
| 1511 | |
| 1512 | SERIALIZER = 'xmlrpclib' |
| 1513 | |
| 1514 | class _TestRemoteManager(BaseTestCase): |
| 1515 | |
| 1516 | ALLOWED_TYPES = ('manager',) |
| 1517 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1518 | @classmethod |
| 1519 | def _putter(cls, address, authkey): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1520 | manager = QueueManager2( |
| 1521 | address=address, authkey=authkey, serializer=SERIALIZER |
| 1522 | ) |
| 1523 | manager.connect() |
| 1524 | queue = manager.get_queue() |
| 1525 | queue.put(('hello world', None, True, 2.25)) |
| 1526 | |
| 1527 | def test_remote(self): |
| 1528 | authkey = os.urandom(32) |
| 1529 | |
| 1530 | manager = QueueManager( |
| 1531 | address=('localhost', 0), authkey=authkey, serializer=SERIALIZER |
| 1532 | ) |
| 1533 | manager.start() |
| 1534 | |
| 1535 | p = self.Process(target=self._putter, args=(manager.address, authkey)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1536 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1537 | p.start() |
| 1538 | |
| 1539 | manager2 = QueueManager2( |
| 1540 | address=manager.address, authkey=authkey, serializer=SERIALIZER |
| 1541 | ) |
| 1542 | manager2.connect() |
| 1543 | queue = manager2.get_queue() |
| 1544 | |
| 1545 | # Note that xmlrpclib will deserialize object as a list not a tuple |
| 1546 | self.assertEqual(queue.get(), ['hello world', None, True, 2.25]) |
| 1547 | |
| 1548 | # Because we are using xmlrpclib for serialization instead of |
| 1549 | # pickle this will cause a serialization error. |
| 1550 | self.assertRaises(Exception, queue.put, time.sleep) |
| 1551 | |
| 1552 | # Make queue finalizer run before the server is stopped |
| 1553 | del queue |
| 1554 | manager.shutdown() |
| 1555 | |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1556 | class _TestManagerRestart(BaseTestCase): |
| 1557 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1558 | @classmethod |
| 1559 | def _putter(cls, address, authkey): |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1560 | manager = QueueManager( |
| 1561 | address=address, authkey=authkey, serializer=SERIALIZER) |
| 1562 | manager.connect() |
| 1563 | queue = manager.get_queue() |
| 1564 | queue.put('hello world') |
| 1565 | |
| 1566 | def test_rapid_restart(self): |
| 1567 | authkey = os.urandom(32) |
| 1568 | manager = QueueManager( |
Antoine Pitrou | 043bad0 | 2010-04-30 23:20:15 +0000 | [diff] [blame] | 1569 | address=('localhost', 0), authkey=authkey, serializer=SERIALIZER) |
Brian Curtin | 50be1ca | 2010-11-01 05:10:44 +0000 | [diff] [blame] | 1570 | srvr = manager.get_server() |
| 1571 | addr = srvr.address |
| 1572 | # Close the connection.Listener socket which gets opened as a part |
| 1573 | # of manager.get_server(). It's not needed for the test. |
| 1574 | srvr.listener.close() |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1575 | manager.start() |
| 1576 | |
| 1577 | p = self.Process(target=self._putter, args=(manager.address, authkey)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1578 | p.daemon = True |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1579 | p.start() |
| 1580 | queue = manager.get_queue() |
| 1581 | self.assertEqual(queue.get(), 'hello world') |
Jesse Noller | 35d1f00 | 2009-03-30 22:59:27 +0000 | [diff] [blame] | 1582 | del queue |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1583 | manager.shutdown() |
| 1584 | manager = QueueManager( |
Antoine Pitrou | 043bad0 | 2010-04-30 23:20:15 +0000 | [diff] [blame] | 1585 | address=addr, authkey=authkey, serializer=SERIALIZER) |
Antoine Pitrou | c824e9a | 2011-04-05 18:11:33 +0200 | [diff] [blame] | 1586 | try: |
| 1587 | manager.start() |
| 1588 | except IOError as e: |
| 1589 | if e.errno != errno.EADDRINUSE: |
| 1590 | raise |
| 1591 | # Retry after some time, in case the old socket was lingering |
| 1592 | # (sporadic failure on buildbots) |
| 1593 | time.sleep(1.0) |
| 1594 | manager = QueueManager( |
| 1595 | address=addr, authkey=authkey, serializer=SERIALIZER) |
Jesse Noller | 35d1f00 | 2009-03-30 22:59:27 +0000 | [diff] [blame] | 1596 | manager.shutdown() |
Jesse Noller | c5d28a0 | 2009-03-30 16:37:36 +0000 | [diff] [blame] | 1597 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1598 | # |
| 1599 | # |
| 1600 | # |
| 1601 | |
| 1602 | SENTINEL = latin('') |
| 1603 | |
| 1604 | class _TestConnection(BaseTestCase): |
| 1605 | |
| 1606 | ALLOWED_TYPES = ('processes', 'threads') |
| 1607 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1608 | @classmethod |
| 1609 | def _echo(cls, conn): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1610 | for msg in iter(conn.recv_bytes, SENTINEL): |
| 1611 | conn.send_bytes(msg) |
| 1612 | conn.close() |
| 1613 | |
| 1614 | def test_connection(self): |
| 1615 | conn, child_conn = self.Pipe() |
| 1616 | |
| 1617 | p = self.Process(target=self._echo, args=(child_conn,)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 1618 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1619 | p.start() |
| 1620 | |
| 1621 | seq = [1, 2.25, None] |
| 1622 | msg = latin('hello world') |
| 1623 | longmsg = msg * 10 |
| 1624 | arr = array.array('i', list(range(4))) |
| 1625 | |
| 1626 | if self.TYPE == 'processes': |
| 1627 | self.assertEqual(type(conn.fileno()), int) |
| 1628 | |
| 1629 | self.assertEqual(conn.send(seq), None) |
| 1630 | self.assertEqual(conn.recv(), seq) |
| 1631 | |
| 1632 | self.assertEqual(conn.send_bytes(msg), None) |
| 1633 | self.assertEqual(conn.recv_bytes(), msg) |
| 1634 | |
| 1635 | if self.TYPE == 'processes': |
| 1636 | buffer = array.array('i', [0]*10) |
| 1637 | expected = list(arr) + [0] * (10 - len(arr)) |
| 1638 | self.assertEqual(conn.send_bytes(arr), None) |
| 1639 | self.assertEqual(conn.recv_bytes_into(buffer), |
| 1640 | len(arr) * buffer.itemsize) |
| 1641 | self.assertEqual(list(buffer), expected) |
| 1642 | |
| 1643 | buffer = array.array('i', [0]*10) |
| 1644 | expected = [0] * 3 + list(arr) + [0] * (10 - 3 - len(arr)) |
| 1645 | self.assertEqual(conn.send_bytes(arr), None) |
| 1646 | self.assertEqual(conn.recv_bytes_into(buffer, 3 * buffer.itemsize), |
| 1647 | len(arr) * buffer.itemsize) |
| 1648 | self.assertEqual(list(buffer), expected) |
| 1649 | |
| 1650 | buffer = bytearray(latin(' ' * 40)) |
| 1651 | self.assertEqual(conn.send_bytes(longmsg), None) |
| 1652 | try: |
| 1653 | res = conn.recv_bytes_into(buffer) |
| 1654 | except multiprocessing.BufferTooShort as e: |
| 1655 | self.assertEqual(e.args, (longmsg,)) |
| 1656 | else: |
| 1657 | self.fail('expected BufferTooShort, got %s' % res) |
| 1658 | |
| 1659 | poll = TimingWrapper(conn.poll) |
| 1660 | |
| 1661 | self.assertEqual(poll(), False) |
| 1662 | self.assertTimingAlmostEqual(poll.elapsed, 0) |
| 1663 | |
| 1664 | self.assertEqual(poll(TIMEOUT1), False) |
| 1665 | self.assertTimingAlmostEqual(poll.elapsed, TIMEOUT1) |
| 1666 | |
| 1667 | conn.send(None) |
| 1668 | |
| 1669 | self.assertEqual(poll(TIMEOUT1), True) |
| 1670 | self.assertTimingAlmostEqual(poll.elapsed, 0) |
| 1671 | |
| 1672 | self.assertEqual(conn.recv(), None) |
| 1673 | |
| 1674 | really_big_msg = latin('X') * (1024 * 1024 * 16) # 16Mb |
| 1675 | conn.send_bytes(really_big_msg) |
| 1676 | self.assertEqual(conn.recv_bytes(), really_big_msg) |
| 1677 | |
| 1678 | conn.send_bytes(SENTINEL) # tell child to quit |
| 1679 | child_conn.close() |
| 1680 | |
| 1681 | if self.TYPE == 'processes': |
| 1682 | self.assertEqual(conn.readable, True) |
| 1683 | self.assertEqual(conn.writable, True) |
| 1684 | self.assertRaises(EOFError, conn.recv) |
| 1685 | self.assertRaises(EOFError, conn.recv_bytes) |
| 1686 | |
| 1687 | p.join() |
| 1688 | |
| 1689 | def test_duplex_false(self): |
| 1690 | reader, writer = self.Pipe(duplex=False) |
| 1691 | self.assertEqual(writer.send(1), None) |
| 1692 | self.assertEqual(reader.recv(), 1) |
| 1693 | if self.TYPE == 'processes': |
| 1694 | self.assertEqual(reader.readable, True) |
| 1695 | self.assertEqual(reader.writable, False) |
| 1696 | self.assertEqual(writer.readable, False) |
| 1697 | self.assertEqual(writer.writable, True) |
| 1698 | self.assertRaises(IOError, reader.send, 2) |
| 1699 | self.assertRaises(IOError, writer.recv) |
| 1700 | self.assertRaises(IOError, writer.poll) |
| 1701 | |
| 1702 | def test_spawn_close(self): |
| 1703 | # We test that a pipe connection can be closed by parent |
| 1704 | # process immediately after child is spawned. On Windows this |
| 1705 | # would have sometimes failed on old versions because |
| 1706 | # child_conn would be closed before the child got a chance to |
| 1707 | # duplicate it. |
| 1708 | conn, child_conn = self.Pipe() |
| 1709 | |
| 1710 | p = self.Process(target=self._echo, args=(child_conn,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1711 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1712 | p.start() |
| 1713 | child_conn.close() # this might complete before child initializes |
| 1714 | |
| 1715 | msg = latin('hello') |
| 1716 | conn.send_bytes(msg) |
| 1717 | self.assertEqual(conn.recv_bytes(), msg) |
| 1718 | |
| 1719 | conn.send_bytes(SENTINEL) |
| 1720 | conn.close() |
| 1721 | p.join() |
| 1722 | |
| 1723 | def test_sendbytes(self): |
| 1724 | if self.TYPE != 'processes': |
| 1725 | return |
| 1726 | |
| 1727 | msg = latin('abcdefghijklmnopqrstuvwxyz') |
| 1728 | a, b = self.Pipe() |
| 1729 | |
| 1730 | a.send_bytes(msg) |
| 1731 | self.assertEqual(b.recv_bytes(), msg) |
| 1732 | |
| 1733 | a.send_bytes(msg, 5) |
| 1734 | self.assertEqual(b.recv_bytes(), msg[5:]) |
| 1735 | |
| 1736 | a.send_bytes(msg, 7, 8) |
| 1737 | self.assertEqual(b.recv_bytes(), msg[7:7+8]) |
| 1738 | |
| 1739 | a.send_bytes(msg, 26) |
| 1740 | self.assertEqual(b.recv_bytes(), latin('')) |
| 1741 | |
| 1742 | a.send_bytes(msg, 26, 0) |
| 1743 | self.assertEqual(b.recv_bytes(), latin('')) |
| 1744 | |
| 1745 | self.assertRaises(ValueError, a.send_bytes, msg, 27) |
| 1746 | |
| 1747 | self.assertRaises(ValueError, a.send_bytes, msg, 22, 5) |
| 1748 | |
| 1749 | self.assertRaises(ValueError, a.send_bytes, msg, 26, 1) |
| 1750 | |
| 1751 | self.assertRaises(ValueError, a.send_bytes, msg, -1) |
| 1752 | |
| 1753 | self.assertRaises(ValueError, a.send_bytes, msg, 4, -1) |
| 1754 | |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1755 | @classmethod |
| 1756 | def _is_fd_assigned(cls, fd): |
| 1757 | try: |
| 1758 | os.fstat(fd) |
| 1759 | except OSError as e: |
| 1760 | if e.errno == errno.EBADF: |
| 1761 | return False |
| 1762 | raise |
| 1763 | else: |
| 1764 | return True |
| 1765 | |
| 1766 | @classmethod |
| 1767 | def _writefd(cls, conn, data, create_dummy_fds=False): |
| 1768 | if create_dummy_fds: |
| 1769 | for i in range(0, 256): |
| 1770 | if not cls._is_fd_assigned(i): |
| 1771 | os.dup2(conn.fileno(), i) |
| 1772 | fd = reduction.recv_handle(conn) |
| 1773 | if msvcrt: |
| 1774 | fd = msvcrt.open_osfhandle(fd, os.O_WRONLY) |
| 1775 | os.write(fd, data) |
| 1776 | os.close(fd) |
| 1777 | |
Charles-François Natali | bc8f082 | 2011-09-20 20:36:51 +0200 | [diff] [blame] | 1778 | @unittest.skipUnless(HAS_REDUCTION, "test needs multiprocessing.reduction") |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1779 | def test_fd_transfer(self): |
| 1780 | if self.TYPE != 'processes': |
| 1781 | self.skipTest("only makes sense with processes") |
| 1782 | conn, child_conn = self.Pipe(duplex=True) |
| 1783 | |
| 1784 | p = self.Process(target=self._writefd, args=(child_conn, b"foo")) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1785 | p.daemon = True |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1786 | p.start() |
Victor Stinner | d0b10a6 | 2011-09-21 01:10:29 +0200 | [diff] [blame] | 1787 | self.addCleanup(test.support.unlink, test.support.TESTFN) |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1788 | with open(test.support.TESTFN, "wb") as f: |
| 1789 | fd = f.fileno() |
| 1790 | if msvcrt: |
| 1791 | fd = msvcrt.get_osfhandle(fd) |
| 1792 | reduction.send_handle(conn, fd, p.pid) |
| 1793 | p.join() |
| 1794 | with open(test.support.TESTFN, "rb") as f: |
| 1795 | self.assertEqual(f.read(), b"foo") |
| 1796 | |
Charles-François Natali | bc8f082 | 2011-09-20 20:36:51 +0200 | [diff] [blame] | 1797 | @unittest.skipUnless(HAS_REDUCTION, "test needs multiprocessing.reduction") |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1798 | @unittest.skipIf(sys.platform == "win32", |
| 1799 | "test semantics don't make sense on Windows") |
| 1800 | @unittest.skipIf(MAXFD <= 256, |
| 1801 | "largest assignable fd number is too small") |
| 1802 | @unittest.skipUnless(hasattr(os, "dup2"), |
| 1803 | "test needs os.dup2()") |
| 1804 | def test_large_fd_transfer(self): |
| 1805 | # With fd > 256 (issue #11657) |
| 1806 | if self.TYPE != 'processes': |
| 1807 | self.skipTest("only makes sense with processes") |
| 1808 | conn, child_conn = self.Pipe(duplex=True) |
| 1809 | |
| 1810 | p = self.Process(target=self._writefd, args=(child_conn, b"bar", True)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 1811 | p.daemon = True |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1812 | p.start() |
Victor Stinner | d0b10a6 | 2011-09-21 01:10:29 +0200 | [diff] [blame] | 1813 | self.addCleanup(test.support.unlink, test.support.TESTFN) |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1814 | with open(test.support.TESTFN, "wb") as f: |
| 1815 | fd = f.fileno() |
| 1816 | for newfd in range(256, MAXFD): |
| 1817 | if not self._is_fd_assigned(newfd): |
| 1818 | break |
| 1819 | else: |
| 1820 | self.fail("could not find an unassigned large file descriptor") |
| 1821 | os.dup2(fd, newfd) |
| 1822 | try: |
| 1823 | reduction.send_handle(conn, newfd, p.pid) |
| 1824 | finally: |
| 1825 | os.close(newfd) |
| 1826 | p.join() |
| 1827 | with open(test.support.TESTFN, "rb") as f: |
| 1828 | self.assertEqual(f.read(), b"bar") |
| 1829 | |
Jesus Cea | 4507e64 | 2011-09-21 03:53:25 +0200 | [diff] [blame] | 1830 | @classmethod |
| 1831 | def _send_data_without_fd(self, conn): |
| 1832 | os.write(conn.fileno(), b"\0") |
| 1833 | |
Charles-François Natali | e51c8da | 2011-09-21 18:48:21 +0200 | [diff] [blame] | 1834 | @unittest.skipUnless(HAS_REDUCTION, "test needs multiprocessing.reduction") |
Jesus Cea | 4507e64 | 2011-09-21 03:53:25 +0200 | [diff] [blame] | 1835 | @unittest.skipIf(sys.platform == "win32", "doesn't make sense on Windows") |
| 1836 | def test_missing_fd_transfer(self): |
| 1837 | # Check that exception is raised when received data is not |
| 1838 | # accompanied by a file descriptor in ancillary data. |
| 1839 | if self.TYPE != 'processes': |
| 1840 | self.skipTest("only makes sense with processes") |
| 1841 | conn, child_conn = self.Pipe(duplex=True) |
| 1842 | |
| 1843 | p = self.Process(target=self._send_data_without_fd, args=(child_conn,)) |
| 1844 | p.daemon = True |
| 1845 | p.start() |
| 1846 | self.assertRaises(RuntimeError, reduction.recv_handle, conn) |
| 1847 | p.join() |
Antoine Pitrou | bcb39d4 | 2011-08-23 19:46:22 +0200 | [diff] [blame] | 1848 | |
Charles-François Natali | ed4a8fc | 2012-02-08 21:15:58 +0100 | [diff] [blame] | 1849 | class _TestListener(BaseTestCase): |
| 1850 | |
| 1851 | ALLOWED_TYPES = ('processes') |
| 1852 | |
| 1853 | def test_multiple_bind(self): |
| 1854 | for family in self.connection.families: |
| 1855 | l = self.connection.Listener(family=family) |
| 1856 | self.addCleanup(l.close) |
| 1857 | self.assertRaises(OSError, self.connection.Listener, |
| 1858 | l.address, family) |
| 1859 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1860 | class _TestListenerClient(BaseTestCase): |
| 1861 | |
| 1862 | ALLOWED_TYPES = ('processes', 'threads') |
| 1863 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 1864 | @classmethod |
| 1865 | def _test(cls, address): |
| 1866 | conn = cls.connection.Client(address) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1867 | conn.send('hello') |
| 1868 | conn.close() |
| 1869 | |
| 1870 | def test_listener_client(self): |
| 1871 | for family in self.connection.families: |
| 1872 | l = self.connection.Listener(family=family) |
| 1873 | p = self.Process(target=self._test, args=(l.address,)) |
Benjamin Peterson | 58ea9fe | 2008-08-19 19:17:39 +0000 | [diff] [blame] | 1874 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1875 | p.start() |
| 1876 | conn = l.accept() |
| 1877 | self.assertEqual(conn.recv(), 'hello') |
| 1878 | p.join() |
| 1879 | l.close() |
Charles-François Natali | ed4a8fc | 2012-02-08 21:15:58 +0100 | [diff] [blame] | 1880 | |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 1881 | class _TestPoll(unittest.TestCase): |
| 1882 | |
| 1883 | ALLOWED_TYPES = ('processes', 'threads') |
| 1884 | |
| 1885 | def test_empty_string(self): |
| 1886 | a, b = self.Pipe() |
| 1887 | self.assertEqual(a.poll(), False) |
| 1888 | b.send_bytes(b'') |
| 1889 | self.assertEqual(a.poll(), True) |
| 1890 | self.assertEqual(a.poll(), True) |
| 1891 | |
| 1892 | @classmethod |
| 1893 | def _child_strings(cls, conn, strings): |
| 1894 | for s in strings: |
| 1895 | time.sleep(0.1) |
| 1896 | conn.send_bytes(s) |
| 1897 | conn.close() |
| 1898 | |
| 1899 | def test_strings(self): |
| 1900 | strings = (b'hello', b'', b'a', b'b', b'', b'bye', b'', b'lop') |
| 1901 | a, b = self.Pipe() |
| 1902 | p = self.Process(target=self._child_strings, args=(b, strings)) |
| 1903 | p.start() |
| 1904 | |
| 1905 | for s in strings: |
| 1906 | for i in range(200): |
| 1907 | if a.poll(0.01): |
| 1908 | break |
| 1909 | x = a.recv_bytes() |
| 1910 | self.assertEqual(s, x) |
| 1911 | |
| 1912 | p.join() |
| 1913 | |
| 1914 | @classmethod |
| 1915 | def _child_boundaries(cls, r): |
| 1916 | # Polling may "pull" a message in to the child process, but we |
| 1917 | # don't want it to pull only part of a message, as that would |
| 1918 | # corrupt the pipe for any other processes which might later |
| 1919 | # read from it. |
| 1920 | r.poll(5) |
| 1921 | |
| 1922 | def test_boundaries(self): |
| 1923 | r, w = self.Pipe(False) |
| 1924 | p = self.Process(target=self._child_boundaries, args=(r,)) |
| 1925 | p.start() |
| 1926 | time.sleep(2) |
| 1927 | L = [b"first", b"second"] |
| 1928 | for obj in L: |
| 1929 | w.send_bytes(obj) |
| 1930 | w.close() |
| 1931 | p.join() |
| 1932 | self.assertIn(r.recv_bytes(), L) |
| 1933 | |
| 1934 | @classmethod |
| 1935 | def _child_dont_merge(cls, b): |
| 1936 | b.send_bytes(b'a') |
| 1937 | b.send_bytes(b'b') |
| 1938 | b.send_bytes(b'cd') |
| 1939 | |
| 1940 | def test_dont_merge(self): |
| 1941 | a, b = self.Pipe() |
| 1942 | self.assertEqual(a.poll(0.0), False) |
| 1943 | self.assertEqual(a.poll(0.1), False) |
| 1944 | |
| 1945 | p = self.Process(target=self._child_dont_merge, args=(b,)) |
| 1946 | p.start() |
| 1947 | |
| 1948 | self.assertEqual(a.recv_bytes(), b'a') |
| 1949 | self.assertEqual(a.poll(1.0), True) |
| 1950 | self.assertEqual(a.poll(1.0), True) |
| 1951 | self.assertEqual(a.recv_bytes(), b'b') |
| 1952 | self.assertEqual(a.poll(1.0), True) |
| 1953 | self.assertEqual(a.poll(1.0), True) |
| 1954 | self.assertEqual(a.poll(0.0), True) |
| 1955 | self.assertEqual(a.recv_bytes(), b'cd') |
| 1956 | |
| 1957 | p.join() |
| 1958 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1959 | # |
| 1960 | # Test of sending connection and socket objects between processes |
| 1961 | # |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1962 | |
Richard Oudkerk | 2452419 | 2012-04-30 14:48:51 +0100 | [diff] [blame] | 1963 | # Intermittent fails on Mac OS X -- see Issue14669 and Issue12958 |
| 1964 | @unittest.skipIf(sys.platform == "darwin", "fd passing unreliable on Mac OS X") |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1965 | @unittest.skipUnless(HAS_REDUCTION, "test needs multiprocessing.reduction") |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1966 | class _TestPicklingConnections(BaseTestCase): |
| 1967 | |
| 1968 | ALLOWED_TYPES = ('processes',) |
| 1969 | |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1970 | @classmethod |
Antoine Pitrou | 92ff4e1 | 2012-04-27 23:51:03 +0200 | [diff] [blame] | 1971 | def tearDownClass(cls): |
| 1972 | from multiprocessing.reduction import resource_sharer |
| 1973 | resource_sharer.stop(timeout=5) |
| 1974 | |
| 1975 | @classmethod |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1976 | def _listener(cls, conn, families): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1977 | for fam in families: |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1978 | l = cls.connection.Listener(family=fam) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1979 | conn.send(l.address) |
| 1980 | new_conn = l.accept() |
| 1981 | conn.send(new_conn) |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1982 | new_conn.close() |
| 1983 | l.close() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1984 | |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1985 | l = socket.socket() |
| 1986 | l.bind(('localhost', 0)) |
| 1987 | conn.send(l.getsockname()) |
| 1988 | l.listen(1) |
| 1989 | new_conn, addr = l.accept() |
| 1990 | conn.send(new_conn) |
| 1991 | new_conn.close() |
| 1992 | l.close() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1993 | |
| 1994 | conn.recv() |
| 1995 | |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1996 | @classmethod |
| 1997 | def _remote(cls, conn): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 1998 | for (address, msg) in iter(conn.recv, None): |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 1999 | client = cls.connection.Client(address) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2000 | client.send(msg.upper()) |
| 2001 | client.close() |
| 2002 | |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 2003 | address, msg = conn.recv() |
| 2004 | client = socket.socket() |
| 2005 | client.connect(address) |
| 2006 | client.sendall(msg.upper()) |
| 2007 | client.close() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2008 | |
| 2009 | conn.close() |
| 2010 | |
| 2011 | def test_pickling(self): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2012 | families = self.connection.families |
| 2013 | |
| 2014 | lconn, lconn0 = self.Pipe() |
| 2015 | lp = self.Process(target=self._listener, args=(lconn0, families)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2016 | lp.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2017 | lp.start() |
| 2018 | lconn0.close() |
| 2019 | |
| 2020 | rconn, rconn0 = self.Pipe() |
| 2021 | rp = self.Process(target=self._remote, args=(rconn0,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2022 | rp.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2023 | rp.start() |
| 2024 | rconn0.close() |
| 2025 | |
| 2026 | for fam in families: |
| 2027 | msg = ('This connection uses family %s' % fam).encode('ascii') |
| 2028 | address = lconn.recv() |
| 2029 | rconn.send((address, msg)) |
| 2030 | new_conn = lconn.recv() |
| 2031 | self.assertEqual(new_conn.recv(), msg.upper()) |
| 2032 | |
| 2033 | rconn.send(None) |
| 2034 | |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 2035 | msg = latin('This connection uses a normal socket') |
| 2036 | address = lconn.recv() |
| 2037 | rconn.send((address, msg)) |
| 2038 | new_conn = lconn.recv() |
Richard Oudkerk | 4460c34 | 2012-04-30 14:48:50 +0100 | [diff] [blame] | 2039 | buf = [] |
| 2040 | while True: |
| 2041 | s = new_conn.recv(100) |
| 2042 | if not s: |
| 2043 | break |
| 2044 | buf.append(s) |
| 2045 | buf = b''.join(buf) |
| 2046 | self.assertEqual(buf, msg.upper()) |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 2047 | new_conn.close() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2048 | |
| 2049 | lconn.send(None) |
| 2050 | |
| 2051 | rconn.close() |
| 2052 | lconn.close() |
| 2053 | |
| 2054 | lp.join() |
| 2055 | rp.join() |
Antoine Pitrou | 5438ed1 | 2012-04-24 22:56:57 +0200 | [diff] [blame] | 2056 | |
| 2057 | @classmethod |
| 2058 | def child_access(cls, conn): |
| 2059 | w = conn.recv() |
| 2060 | w.send('all is well') |
| 2061 | w.close() |
| 2062 | |
| 2063 | r = conn.recv() |
| 2064 | msg = r.recv() |
| 2065 | conn.send(msg*2) |
| 2066 | |
| 2067 | conn.close() |
| 2068 | |
| 2069 | def test_access(self): |
| 2070 | # On Windows, if we do not specify a destination pid when |
| 2071 | # using DupHandle then we need to be careful to use the |
| 2072 | # correct access flags for DuplicateHandle(), or else |
| 2073 | # DupHandle.detach() will raise PermissionError. For example, |
| 2074 | # for a read only pipe handle we should use |
| 2075 | # access=FILE_GENERIC_READ. (Unfortunately |
| 2076 | # DUPLICATE_SAME_ACCESS does not work.) |
| 2077 | conn, child_conn = self.Pipe() |
| 2078 | p = self.Process(target=self.child_access, args=(child_conn,)) |
| 2079 | p.daemon = True |
| 2080 | p.start() |
| 2081 | child_conn.close() |
| 2082 | |
| 2083 | r, w = self.Pipe(duplex=False) |
| 2084 | conn.send(w) |
| 2085 | w.close() |
| 2086 | self.assertEqual(r.recv(), 'all is well') |
| 2087 | r.close() |
| 2088 | |
| 2089 | r, w = self.Pipe(duplex=False) |
| 2090 | conn.send(r) |
| 2091 | r.close() |
| 2092 | w.send('foobar') |
| 2093 | w.close() |
| 2094 | self.assertEqual(conn.recv(), 'foobar'*2) |
| 2095 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2096 | # |
| 2097 | # |
| 2098 | # |
| 2099 | |
| 2100 | class _TestHeap(BaseTestCase): |
| 2101 | |
| 2102 | ALLOWED_TYPES = ('processes',) |
| 2103 | |
| 2104 | def test_heap(self): |
| 2105 | iterations = 5000 |
| 2106 | maxblocks = 50 |
| 2107 | blocks = [] |
| 2108 | |
| 2109 | # create and destroy lots of blocks of different sizes |
| 2110 | for i in range(iterations): |
| 2111 | size = int(random.lognormvariate(0, 1) * 1000) |
| 2112 | b = multiprocessing.heap.BufferWrapper(size) |
| 2113 | blocks.append(b) |
| 2114 | if len(blocks) > maxblocks: |
| 2115 | i = random.randrange(maxblocks) |
| 2116 | del blocks[i] |
| 2117 | |
| 2118 | # get the heap object |
| 2119 | heap = multiprocessing.heap.BufferWrapper._heap |
| 2120 | |
| 2121 | # verify the state of the heap |
| 2122 | all = [] |
| 2123 | occupied = 0 |
Charles-François Natali | 778db49 | 2011-07-02 14:35:49 +0200 | [diff] [blame] | 2124 | heap._lock.acquire() |
| 2125 | self.addCleanup(heap._lock.release) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2126 | for L in list(heap._len_to_seq.values()): |
| 2127 | for arena, start, stop in L: |
| 2128 | all.append((heap._arenas.index(arena), start, stop, |
| 2129 | stop-start, 'free')) |
| 2130 | for arena, start, stop in heap._allocated_blocks: |
| 2131 | all.append((heap._arenas.index(arena), start, stop, |
| 2132 | stop-start, 'occupied')) |
| 2133 | occupied += (stop-start) |
| 2134 | |
| 2135 | all.sort() |
| 2136 | |
| 2137 | for i in range(len(all)-1): |
| 2138 | (arena, start, stop) = all[i][:3] |
| 2139 | (narena, nstart, nstop) = all[i+1][:3] |
| 2140 | self.assertTrue((arena != narena and nstart == 0) or |
| 2141 | (stop == nstart)) |
| 2142 | |
Charles-François Natali | 778db49 | 2011-07-02 14:35:49 +0200 | [diff] [blame] | 2143 | def test_free_from_gc(self): |
| 2144 | # Check that freeing of blocks by the garbage collector doesn't deadlock |
| 2145 | # (issue #12352). |
| 2146 | # Make sure the GC is enabled, and set lower collection thresholds to |
| 2147 | # make collections more frequent (and increase the probability of |
| 2148 | # deadlock). |
| 2149 | if not gc.isenabled(): |
| 2150 | gc.enable() |
| 2151 | self.addCleanup(gc.disable) |
| 2152 | thresholds = gc.get_threshold() |
| 2153 | self.addCleanup(gc.set_threshold, *thresholds) |
| 2154 | gc.set_threshold(10) |
| 2155 | |
| 2156 | # perform numerous block allocations, with cyclic references to make |
| 2157 | # sure objects are collected asynchronously by the gc |
| 2158 | for i in range(5000): |
| 2159 | a = multiprocessing.heap.BufferWrapper(1) |
| 2160 | b = multiprocessing.heap.BufferWrapper(1) |
| 2161 | # circular references |
| 2162 | a.buddy = b |
| 2163 | b.buddy = a |
| 2164 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2165 | # |
| 2166 | # |
| 2167 | # |
| 2168 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2169 | class _Foo(Structure): |
| 2170 | _fields_ = [ |
| 2171 | ('x', c_int), |
| 2172 | ('y', c_double) |
| 2173 | ] |
| 2174 | |
| 2175 | class _TestSharedCTypes(BaseTestCase): |
| 2176 | |
| 2177 | ALLOWED_TYPES = ('processes',) |
| 2178 | |
Antoine Pitrou | 7744e2a | 2010-11-22 16:26:21 +0000 | [diff] [blame] | 2179 | def setUp(self): |
| 2180 | if not HAS_SHAREDCTYPES: |
| 2181 | self.skipTest("requires multiprocessing.sharedctypes") |
| 2182 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 2183 | @classmethod |
| 2184 | def _double(cls, x, y, foo, arr, string): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2185 | x.value *= 2 |
| 2186 | y.value *= 2 |
| 2187 | foo.x *= 2 |
| 2188 | foo.y *= 2 |
| 2189 | string.value *= 2 |
| 2190 | for i in range(len(arr)): |
| 2191 | arr[i] *= 2 |
| 2192 | |
| 2193 | def test_sharedctypes(self, lock=False): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2194 | x = Value('i', 7, lock=lock) |
Georg Brandl | 89fad14 | 2010-03-14 10:23:39 +0000 | [diff] [blame] | 2195 | y = Value(c_double, 1.0/3.0, lock=lock) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2196 | foo = Value(_Foo, 3, 2, lock=lock) |
Georg Brandl | 89fad14 | 2010-03-14 10:23:39 +0000 | [diff] [blame] | 2197 | arr = self.Array('d', list(range(10)), lock=lock) |
| 2198 | string = self.Array('c', 20, lock=lock) |
Brian Curtin | afa88b5 | 2010-10-07 01:12:19 +0000 | [diff] [blame] | 2199 | string.value = latin('hello') |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2200 | |
| 2201 | p = self.Process(target=self._double, args=(x, y, foo, arr, string)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2202 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2203 | p.start() |
| 2204 | p.join() |
| 2205 | |
| 2206 | self.assertEqual(x.value, 14) |
| 2207 | self.assertAlmostEqual(y.value, 2.0/3.0) |
| 2208 | self.assertEqual(foo.x, 6) |
| 2209 | self.assertAlmostEqual(foo.y, 4.0) |
| 2210 | for i in range(10): |
| 2211 | self.assertAlmostEqual(arr[i], i*2) |
| 2212 | self.assertEqual(string.value, latin('hellohello')) |
| 2213 | |
| 2214 | def test_synchronize(self): |
| 2215 | self.test_sharedctypes(lock=True) |
| 2216 | |
| 2217 | def test_copy(self): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2218 | foo = _Foo(2, 5.0) |
Brian Curtin | afa88b5 | 2010-10-07 01:12:19 +0000 | [diff] [blame] | 2219 | bar = copy(foo) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2220 | foo.x = 0 |
| 2221 | foo.y = 0 |
| 2222 | self.assertEqual(bar.x, 2) |
| 2223 | self.assertAlmostEqual(bar.y, 5.0) |
| 2224 | |
| 2225 | # |
| 2226 | # |
| 2227 | # |
| 2228 | |
| 2229 | class _TestFinalize(BaseTestCase): |
| 2230 | |
| 2231 | ALLOWED_TYPES = ('processes',) |
| 2232 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 2233 | @classmethod |
| 2234 | def _test_finalize(cls, conn): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2235 | class Foo(object): |
| 2236 | pass |
| 2237 | |
| 2238 | a = Foo() |
| 2239 | util.Finalize(a, conn.send, args=('a',)) |
| 2240 | del a # triggers callback for a |
| 2241 | |
| 2242 | b = Foo() |
| 2243 | close_b = util.Finalize(b, conn.send, args=('b',)) |
| 2244 | close_b() # triggers callback for b |
| 2245 | close_b() # does nothing because callback has already been called |
| 2246 | del b # does nothing because callback has already been called |
| 2247 | |
| 2248 | c = Foo() |
| 2249 | util.Finalize(c, conn.send, args=('c',)) |
| 2250 | |
| 2251 | d10 = Foo() |
| 2252 | util.Finalize(d10, conn.send, args=('d10',), exitpriority=1) |
| 2253 | |
| 2254 | d01 = Foo() |
| 2255 | util.Finalize(d01, conn.send, args=('d01',), exitpriority=0) |
| 2256 | d02 = Foo() |
| 2257 | util.Finalize(d02, conn.send, args=('d02',), exitpriority=0) |
| 2258 | d03 = Foo() |
| 2259 | util.Finalize(d03, conn.send, args=('d03',), exitpriority=0) |
| 2260 | |
| 2261 | util.Finalize(None, conn.send, args=('e',), exitpriority=-10) |
| 2262 | |
| 2263 | util.Finalize(None, conn.send, args=('STOP',), exitpriority=-100) |
| 2264 | |
Ezio Melotti | 1392500 | 2011-03-16 11:05:33 +0200 | [diff] [blame] | 2265 | # call multiprocessing's cleanup function then exit process without |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2266 | # garbage collecting locals |
| 2267 | util._exit_function() |
| 2268 | conn.close() |
| 2269 | os._exit(0) |
| 2270 | |
| 2271 | def test_finalize(self): |
| 2272 | conn, child_conn = self.Pipe() |
| 2273 | |
| 2274 | p = self.Process(target=self._test_finalize, args=(child_conn,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2275 | p.daemon = True |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2276 | p.start() |
| 2277 | p.join() |
| 2278 | |
| 2279 | result = [obj for obj in iter(conn.recv, 'STOP')] |
| 2280 | self.assertEqual(result, ['a', 'b', 'd10', 'd03', 'd02', 'd01', 'e']) |
| 2281 | |
| 2282 | # |
| 2283 | # Test that from ... import * works for each module |
| 2284 | # |
| 2285 | |
| 2286 | class _TestImportStar(BaseTestCase): |
| 2287 | |
| 2288 | ALLOWED_TYPES = ('processes',) |
| 2289 | |
| 2290 | def test_import(self): |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2291 | modules = [ |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2292 | 'multiprocessing', 'multiprocessing.connection', |
| 2293 | 'multiprocessing.heap', 'multiprocessing.managers', |
| 2294 | 'multiprocessing.pool', 'multiprocessing.process', |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2295 | 'multiprocessing.synchronize', 'multiprocessing.util' |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2296 | ] |
| 2297 | |
Charles-François Natali | bc8f082 | 2011-09-20 20:36:51 +0200 | [diff] [blame] | 2298 | if HAS_REDUCTION: |
| 2299 | modules.append('multiprocessing.reduction') |
| 2300 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2301 | if c_int is not None: |
| 2302 | # This module requires _ctypes |
| 2303 | modules.append('multiprocessing.sharedctypes') |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2304 | |
| 2305 | for name in modules: |
| 2306 | __import__(name) |
| 2307 | mod = sys.modules[name] |
| 2308 | |
| 2309 | for attr in getattr(mod, '__all__', ()): |
| 2310 | self.assertTrue( |
| 2311 | hasattr(mod, attr), |
| 2312 | '%r does not have attribute %r' % (mod, attr) |
| 2313 | ) |
| 2314 | |
| 2315 | # |
| 2316 | # Quick test that logging works -- does not test logging output |
| 2317 | # |
| 2318 | |
| 2319 | class _TestLogging(BaseTestCase): |
| 2320 | |
| 2321 | ALLOWED_TYPES = ('processes',) |
| 2322 | |
| 2323 | def test_enable_logging(self): |
| 2324 | logger = multiprocessing.get_logger() |
| 2325 | logger.setLevel(util.SUBWARNING) |
| 2326 | self.assertTrue(logger is not None) |
| 2327 | logger.debug('this will not be printed') |
| 2328 | logger.info('nor will this') |
| 2329 | logger.setLevel(LOG_LEVEL) |
| 2330 | |
Antoine Pitrou | 0d1b38c | 2010-11-02 23:50:11 +0000 | [diff] [blame] | 2331 | @classmethod |
| 2332 | def _test_level(cls, conn): |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2333 | logger = multiprocessing.get_logger() |
| 2334 | conn.send(logger.getEffectiveLevel()) |
| 2335 | |
| 2336 | def test_level(self): |
| 2337 | LEVEL1 = 32 |
| 2338 | LEVEL2 = 37 |
| 2339 | |
| 2340 | logger = multiprocessing.get_logger() |
| 2341 | root_logger = logging.getLogger() |
| 2342 | root_level = root_logger.level |
| 2343 | |
| 2344 | reader, writer = multiprocessing.Pipe(duplex=False) |
| 2345 | |
| 2346 | logger.setLevel(LEVEL1) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2347 | p = self.Process(target=self._test_level, args=(writer,)) |
| 2348 | p.daemon = True |
| 2349 | p.start() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2350 | self.assertEqual(LEVEL1, reader.recv()) |
| 2351 | |
| 2352 | logger.setLevel(logging.NOTSET) |
| 2353 | root_logger.setLevel(LEVEL2) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2354 | p = self.Process(target=self._test_level, args=(writer,)) |
| 2355 | p.daemon = True |
| 2356 | p.start() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2357 | self.assertEqual(LEVEL2, reader.recv()) |
| 2358 | |
| 2359 | root_logger.setLevel(root_level) |
| 2360 | logger.setLevel(level=LOG_LEVEL) |
| 2361 | |
Jesse Noller | b9a49b7 | 2009-11-21 18:09:38 +0000 | [diff] [blame] | 2362 | |
Jesse Noller | f4ae35f | 2009-11-24 14:22:24 +0000 | [diff] [blame] | 2363 | # class _TestLoggingProcessName(BaseTestCase): |
| 2364 | # |
| 2365 | # def handle(self, record): |
| 2366 | # assert record.processName == multiprocessing.current_process().name |
| 2367 | # self.__handled = True |
| 2368 | # |
| 2369 | # def test_logging(self): |
| 2370 | # handler = logging.Handler() |
| 2371 | # handler.handle = self.handle |
| 2372 | # self.__handled = False |
| 2373 | # # Bypass getLogger() and side-effects |
| 2374 | # logger = logging.getLoggerClass()( |
| 2375 | # 'multiprocessing.test.TestLoggingProcessName') |
| 2376 | # logger.addHandler(handler) |
| 2377 | # logger.propagate = False |
| 2378 | # |
| 2379 | # logger.warn('foo') |
| 2380 | # assert self.__handled |
Jesse Noller | b9a49b7 | 2009-11-21 18:09:38 +0000 | [diff] [blame] | 2381 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2382 | # |
Jesse Noller | 6214edd | 2009-01-19 16:23:53 +0000 | [diff] [blame] | 2383 | # Test to verify handle verification, see issue 3321 |
| 2384 | # |
| 2385 | |
| 2386 | class TestInvalidHandle(unittest.TestCase): |
| 2387 | |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2388 | @unittest.skipIf(WIN32, "skipped on Windows") |
Jesse Noller | 6214edd | 2009-01-19 16:23:53 +0000 | [diff] [blame] | 2389 | def test_invalid_handles(self): |
Antoine Pitrou | 87cf220 | 2011-05-09 17:04:27 +0200 | [diff] [blame] | 2390 | conn = multiprocessing.connection.Connection(44977608) |
| 2391 | try: |
| 2392 | self.assertRaises((ValueError, IOError), conn.poll) |
| 2393 | finally: |
| 2394 | # Hack private attribute _handle to avoid printing an error |
| 2395 | # in conn.__del__ |
| 2396 | conn._handle = None |
| 2397 | self.assertRaises((ValueError, IOError), |
| 2398 | multiprocessing.connection.Connection, -1) |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2399 | |
Jesse Noller | 6214edd | 2009-01-19 16:23:53 +0000 | [diff] [blame] | 2400 | # |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2401 | # Functions used to create test cases from the base ones in this module |
| 2402 | # |
| 2403 | |
| 2404 | def get_attributes(Source, names): |
| 2405 | d = {} |
| 2406 | for name in names: |
| 2407 | obj = getattr(Source, name) |
| 2408 | if type(obj) == type(get_attributes): |
| 2409 | obj = staticmethod(obj) |
| 2410 | d[name] = obj |
| 2411 | return d |
| 2412 | |
| 2413 | def create_test_cases(Mixin, type): |
| 2414 | result = {} |
| 2415 | glob = globals() |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 2416 | Type = type.capitalize() |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2417 | |
| 2418 | for name in list(glob.keys()): |
| 2419 | if name.startswith('_Test'): |
| 2420 | base = glob[name] |
| 2421 | if type in base.ALLOWED_TYPES: |
| 2422 | newname = 'With' + Type + name[1:] |
| 2423 | class Temp(base, unittest.TestCase, Mixin): |
| 2424 | pass |
| 2425 | result[newname] = Temp |
| 2426 | Temp.__name__ = newname |
| 2427 | Temp.__module__ = Mixin.__module__ |
| 2428 | return result |
| 2429 | |
| 2430 | # |
| 2431 | # Create test cases |
| 2432 | # |
| 2433 | |
| 2434 | class ProcessesMixin(object): |
| 2435 | TYPE = 'processes' |
| 2436 | Process = multiprocessing.Process |
| 2437 | locals().update(get_attributes(multiprocessing, ( |
| 2438 | 'Queue', 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', |
| 2439 | 'Condition', 'Event', 'Value', 'Array', 'RawValue', |
| 2440 | 'RawArray', 'current_process', 'active_children', 'Pipe', |
| 2441 | 'connection', 'JoinableQueue' |
| 2442 | ))) |
| 2443 | |
| 2444 | testcases_processes = create_test_cases(ProcessesMixin, type='processes') |
| 2445 | globals().update(testcases_processes) |
| 2446 | |
| 2447 | |
| 2448 | class ManagerMixin(object): |
| 2449 | TYPE = 'manager' |
| 2450 | Process = multiprocessing.Process |
| 2451 | manager = object.__new__(multiprocessing.managers.SyncManager) |
| 2452 | locals().update(get_attributes(manager, ( |
| 2453 | 'Queue', 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', |
| 2454 | 'Condition', 'Event', 'Value', 'Array', 'list', 'dict', |
| 2455 | 'Namespace', 'JoinableQueue' |
| 2456 | ))) |
| 2457 | |
| 2458 | testcases_manager = create_test_cases(ManagerMixin, type='manager') |
| 2459 | globals().update(testcases_manager) |
| 2460 | |
| 2461 | |
| 2462 | class ThreadsMixin(object): |
| 2463 | TYPE = 'threads' |
| 2464 | Process = multiprocessing.dummy.Process |
| 2465 | locals().update(get_attributes(multiprocessing.dummy, ( |
| 2466 | 'Queue', 'Lock', 'RLock', 'Semaphore', 'BoundedSemaphore', |
| 2467 | 'Condition', 'Event', 'Value', 'Array', 'current_process', |
| 2468 | 'active_children', 'Pipe', 'connection', 'dict', 'list', |
| 2469 | 'Namespace', 'JoinableQueue' |
| 2470 | ))) |
| 2471 | |
| 2472 | testcases_threads = create_test_cases(ThreadsMixin, type='threads') |
| 2473 | globals().update(testcases_threads) |
| 2474 | |
Neal Norwitz | 5d6415e | 2008-08-25 01:53:32 +0000 | [diff] [blame] | 2475 | class OtherTest(unittest.TestCase): |
| 2476 | # TODO: add more tests for deliver/answer challenge. |
| 2477 | def test_deliver_challenge_auth_failure(self): |
| 2478 | class _FakeConnection(object): |
| 2479 | def recv_bytes(self, size): |
Neal Norwitz | ec105ad | 2008-08-25 03:05:54 +0000 | [diff] [blame] | 2480 | return b'something bogus' |
Neal Norwitz | 5d6415e | 2008-08-25 01:53:32 +0000 | [diff] [blame] | 2481 | def send_bytes(self, data): |
| 2482 | pass |
| 2483 | self.assertRaises(multiprocessing.AuthenticationError, |
| 2484 | multiprocessing.connection.deliver_challenge, |
| 2485 | _FakeConnection(), b'abc') |
| 2486 | |
| 2487 | def test_answer_challenge_auth_failure(self): |
| 2488 | class _FakeConnection(object): |
| 2489 | def __init__(self): |
| 2490 | self.count = 0 |
| 2491 | def recv_bytes(self, size): |
| 2492 | self.count += 1 |
| 2493 | if self.count == 1: |
| 2494 | return multiprocessing.connection.CHALLENGE |
| 2495 | elif self.count == 2: |
Neal Norwitz | ec105ad | 2008-08-25 03:05:54 +0000 | [diff] [blame] | 2496 | return b'something bogus' |
| 2497 | return b'' |
Neal Norwitz | 5d6415e | 2008-08-25 01:53:32 +0000 | [diff] [blame] | 2498 | def send_bytes(self, data): |
| 2499 | pass |
| 2500 | self.assertRaises(multiprocessing.AuthenticationError, |
| 2501 | multiprocessing.connection.answer_challenge, |
| 2502 | _FakeConnection(), b'abc') |
| 2503 | |
Benjamin Peterson | f47ed4a | 2009-04-11 20:45:40 +0000 | [diff] [blame] | 2504 | # |
| 2505 | # Test Manager.start()/Pool.__init__() initializer feature - see issue 5585 |
| 2506 | # |
| 2507 | |
| 2508 | def initializer(ns): |
| 2509 | ns.test += 1 |
| 2510 | |
| 2511 | class TestInitializers(unittest.TestCase): |
| 2512 | def setUp(self): |
| 2513 | self.mgr = multiprocessing.Manager() |
| 2514 | self.ns = self.mgr.Namespace() |
| 2515 | self.ns.test = 0 |
| 2516 | |
| 2517 | def tearDown(self): |
| 2518 | self.mgr.shutdown() |
Richard Oudkerk | a6becaa | 2012-05-03 18:29:02 +0100 | [diff] [blame] | 2519 | self.mgr.join() |
Benjamin Peterson | f47ed4a | 2009-04-11 20:45:40 +0000 | [diff] [blame] | 2520 | |
| 2521 | def test_manager_initializer(self): |
| 2522 | m = multiprocessing.managers.SyncManager() |
| 2523 | self.assertRaises(TypeError, m.start, 1) |
| 2524 | m.start(initializer, (self.ns,)) |
| 2525 | self.assertEqual(self.ns.test, 1) |
| 2526 | m.shutdown() |
Richard Oudkerk | a6becaa | 2012-05-03 18:29:02 +0100 | [diff] [blame] | 2527 | m.join() |
Benjamin Peterson | f47ed4a | 2009-04-11 20:45:40 +0000 | [diff] [blame] | 2528 | |
| 2529 | def test_pool_initializer(self): |
| 2530 | self.assertRaises(TypeError, multiprocessing.Pool, initializer=1) |
| 2531 | p = multiprocessing.Pool(1, initializer, (self.ns,)) |
| 2532 | p.close() |
| 2533 | p.join() |
| 2534 | self.assertEqual(self.ns.test, 1) |
| 2535 | |
Alexandre Vassalotti | c57a84f | 2009-07-17 12:07:01 +0000 | [diff] [blame] | 2536 | # |
| 2537 | # Issue 5155, 5313, 5331: Test process in processes |
| 2538 | # Verifies os.close(sys.stdin.fileno) vs. sys.stdin.close() behavior |
| 2539 | # |
| 2540 | |
| 2541 | def _ThisSubProcess(q): |
| 2542 | try: |
| 2543 | item = q.get(block=False) |
| 2544 | except pyqueue.Empty: |
| 2545 | pass |
| 2546 | |
| 2547 | def _TestProcess(q): |
| 2548 | queue = multiprocessing.Queue() |
| 2549 | subProc = multiprocessing.Process(target=_ThisSubProcess, args=(queue,)) |
Jesus Cea | 94f964f | 2011-09-09 20:26:57 +0200 | [diff] [blame] | 2550 | subProc.daemon = True |
Alexandre Vassalotti | c57a84f | 2009-07-17 12:07:01 +0000 | [diff] [blame] | 2551 | subProc.start() |
| 2552 | subProc.join() |
| 2553 | |
| 2554 | def _afunc(x): |
| 2555 | return x*x |
| 2556 | |
| 2557 | def pool_in_process(): |
| 2558 | pool = multiprocessing.Pool(processes=4) |
| 2559 | x = pool.map(_afunc, [1, 2, 3, 4, 5, 6, 7]) |
Richard Oudkerk | 225cb8d | 2012-05-02 19:36:11 +0100 | [diff] [blame] | 2560 | pool.close() |
| 2561 | pool.join() |
Alexandre Vassalotti | c57a84f | 2009-07-17 12:07:01 +0000 | [diff] [blame] | 2562 | |
| 2563 | class _file_like(object): |
| 2564 | def __init__(self, delegate): |
| 2565 | self._delegate = delegate |
| 2566 | self._pid = None |
| 2567 | |
| 2568 | @property |
| 2569 | def cache(self): |
| 2570 | pid = os.getpid() |
| 2571 | # There are no race conditions since fork keeps only the running thread |
| 2572 | if pid != self._pid: |
| 2573 | self._pid = pid |
| 2574 | self._cache = [] |
| 2575 | return self._cache |
| 2576 | |
| 2577 | def write(self, data): |
| 2578 | self.cache.append(data) |
| 2579 | |
| 2580 | def flush(self): |
| 2581 | self._delegate.write(''.join(self.cache)) |
| 2582 | self._cache = [] |
| 2583 | |
| 2584 | class TestStdinBadfiledescriptor(unittest.TestCase): |
| 2585 | |
| 2586 | def test_queue_in_process(self): |
| 2587 | queue = multiprocessing.Queue() |
| 2588 | proc = multiprocessing.Process(target=_TestProcess, args=(queue,)) |
| 2589 | proc.start() |
| 2590 | proc.join() |
| 2591 | |
| 2592 | def test_pool_in_process(self): |
| 2593 | p = multiprocessing.Process(target=pool_in_process) |
| 2594 | p.start() |
| 2595 | p.join() |
| 2596 | |
| 2597 | def test_flushing(self): |
| 2598 | sio = io.StringIO() |
| 2599 | flike = _file_like(sio) |
| 2600 | flike.write('foo') |
| 2601 | proc = multiprocessing.Process(target=lambda: flike.flush()) |
| 2602 | flike.flush() |
| 2603 | assert sio.getvalue() == 'foo' |
| 2604 | |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2605 | |
| 2606 | class TestWait(unittest.TestCase): |
| 2607 | |
| 2608 | @classmethod |
| 2609 | def _child_test_wait(cls, w, slow): |
| 2610 | for i in range(10): |
| 2611 | if slow: |
| 2612 | time.sleep(random.random()*0.1) |
| 2613 | w.send((i, os.getpid())) |
| 2614 | w.close() |
| 2615 | |
| 2616 | def test_wait(self, slow=False): |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2617 | from multiprocessing.connection import wait |
| 2618 | readers = [] |
| 2619 | procs = [] |
| 2620 | messages = [] |
| 2621 | |
| 2622 | for i in range(4): |
Antoine Pitrou | 5bb9a8f | 2012-03-06 13:43:24 +0100 | [diff] [blame] | 2623 | r, w = multiprocessing.Pipe(duplex=False) |
| 2624 | p = multiprocessing.Process(target=self._child_test_wait, args=(w, slow)) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2625 | p.daemon = True |
| 2626 | p.start() |
| 2627 | w.close() |
| 2628 | readers.append(r) |
| 2629 | procs.append(p) |
Antoine Pitrou | 6c64cc1 | 2012-03-06 13:42:35 +0100 | [diff] [blame] | 2630 | self.addCleanup(p.join) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2631 | |
| 2632 | while readers: |
| 2633 | for r in wait(readers): |
| 2634 | try: |
| 2635 | msg = r.recv() |
| 2636 | except EOFError: |
| 2637 | readers.remove(r) |
| 2638 | r.close() |
| 2639 | else: |
| 2640 | messages.append(msg) |
| 2641 | |
| 2642 | messages.sort() |
| 2643 | expected = sorted((i, p.pid) for i in range(10) for p in procs) |
| 2644 | self.assertEqual(messages, expected) |
| 2645 | |
| 2646 | @classmethod |
| 2647 | def _child_test_wait_socket(cls, address, slow): |
| 2648 | s = socket.socket() |
| 2649 | s.connect(address) |
| 2650 | for i in range(10): |
| 2651 | if slow: |
| 2652 | time.sleep(random.random()*0.1) |
| 2653 | s.sendall(('%s\n' % i).encode('ascii')) |
| 2654 | s.close() |
| 2655 | |
| 2656 | def test_wait_socket(self, slow=False): |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2657 | from multiprocessing.connection import wait |
| 2658 | l = socket.socket() |
| 2659 | l.bind(('', 0)) |
| 2660 | l.listen(4) |
| 2661 | addr = ('localhost', l.getsockname()[1]) |
| 2662 | readers = [] |
| 2663 | procs = [] |
| 2664 | dic = {} |
| 2665 | |
| 2666 | for i in range(4): |
Antoine Pitrou | 5bb9a8f | 2012-03-06 13:43:24 +0100 | [diff] [blame] | 2667 | p = multiprocessing.Process(target=self._child_test_wait_socket, |
| 2668 | args=(addr, slow)) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2669 | p.daemon = True |
| 2670 | p.start() |
| 2671 | procs.append(p) |
Antoine Pitrou | 6c64cc1 | 2012-03-06 13:42:35 +0100 | [diff] [blame] | 2672 | self.addCleanup(p.join) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2673 | |
| 2674 | for i in range(4): |
| 2675 | r, _ = l.accept() |
| 2676 | readers.append(r) |
| 2677 | dic[r] = [] |
| 2678 | l.close() |
| 2679 | |
| 2680 | while readers: |
| 2681 | for r in wait(readers): |
| 2682 | msg = r.recv(32) |
| 2683 | if not msg: |
| 2684 | readers.remove(r) |
| 2685 | r.close() |
| 2686 | else: |
| 2687 | dic[r].append(msg) |
| 2688 | |
| 2689 | expected = ''.join('%s\n' % i for i in range(10)).encode('ascii') |
| 2690 | for v in dic.values(): |
| 2691 | self.assertEqual(b''.join(v), expected) |
| 2692 | |
| 2693 | def test_wait_slow(self): |
| 2694 | self.test_wait(True) |
| 2695 | |
| 2696 | def test_wait_socket_slow(self): |
| 2697 | self.test_wait(True) |
| 2698 | |
| 2699 | def test_wait_timeout(self): |
| 2700 | from multiprocessing.connection import wait |
| 2701 | |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2702 | expected = 5 |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2703 | a, b = multiprocessing.Pipe() |
| 2704 | |
| 2705 | start = time.time() |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2706 | res = wait([a, b], expected) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2707 | delta = time.time() - start |
| 2708 | |
| 2709 | self.assertEqual(res, []) |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2710 | self.assertLess(delta, expected + 1) |
| 2711 | self.assertGreater(delta, expected - 1) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2712 | |
| 2713 | b.send(None) |
| 2714 | |
| 2715 | start = time.time() |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2716 | res = wait([a, b], 20) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2717 | delta = time.time() - start |
| 2718 | |
| 2719 | self.assertEqual(res, [a]) |
Antoine Pitrou | 3774977 | 2012-03-09 18:40:15 +0100 | [diff] [blame] | 2720 | self.assertLess(delta, 0.4) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2721 | |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2722 | @classmethod |
| 2723 | def signal_and_sleep(cls, sem, period): |
| 2724 | sem.release() |
| 2725 | time.sleep(period) |
| 2726 | |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2727 | def test_wait_integer(self): |
| 2728 | from multiprocessing.connection import wait |
| 2729 | |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2730 | expected = 3 |
| 2731 | sem = multiprocessing.Semaphore(0) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2732 | a, b = multiprocessing.Pipe() |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2733 | p = multiprocessing.Process(target=self.signal_and_sleep, |
| 2734 | args=(sem, expected)) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2735 | |
| 2736 | p.start() |
| 2737 | self.assertIsInstance(p.sentinel, int) |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2738 | self.assertTrue(sem.acquire(timeout=20)) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2739 | |
| 2740 | start = time.time() |
| 2741 | res = wait([a, p.sentinel, b], expected + 20) |
| 2742 | delta = time.time() - start |
| 2743 | |
| 2744 | self.assertEqual(res, [p.sentinel]) |
Antoine Pitrou | 3774977 | 2012-03-09 18:40:15 +0100 | [diff] [blame] | 2745 | self.assertLess(delta, expected + 2) |
| 2746 | self.assertGreater(delta, expected - 2) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2747 | |
| 2748 | a.send(None) |
| 2749 | |
| 2750 | start = time.time() |
| 2751 | res = wait([a, p.sentinel, b], 20) |
| 2752 | delta = time.time() - start |
| 2753 | |
| 2754 | self.assertEqual(res, [p.sentinel, b]) |
Antoine Pitrou | 3774977 | 2012-03-09 18:40:15 +0100 | [diff] [blame] | 2755 | self.assertLess(delta, 0.4) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2756 | |
| 2757 | b.send(None) |
| 2758 | |
| 2759 | start = time.time() |
| 2760 | res = wait([a, p.sentinel, b], 20) |
| 2761 | delta = time.time() - start |
| 2762 | |
| 2763 | self.assertEqual(res, [a, p.sentinel, b]) |
Antoine Pitrou | 3774977 | 2012-03-09 18:40:15 +0100 | [diff] [blame] | 2764 | self.assertLess(delta, 0.4) |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2765 | |
Richard Oudkerk | 009b15e | 2012-05-04 09:44:39 +0100 | [diff] [blame^] | 2766 | p.terminate() |
Antoine Pitrou | bdb1cf1 | 2012-03-05 19:28:37 +0100 | [diff] [blame] | 2767 | p.join() |
| 2768 | |
| 2769 | |
Antoine Pitrou | 709176f | 2012-04-01 17:19:09 +0200 | [diff] [blame] | 2770 | # |
| 2771 | # Issue 14151: Test invalid family on invalid environment |
| 2772 | # |
| 2773 | |
| 2774 | class TestInvalidFamily(unittest.TestCase): |
| 2775 | |
| 2776 | @unittest.skipIf(WIN32, "skipped on Windows") |
| 2777 | def test_invalid_family(self): |
| 2778 | with self.assertRaises(ValueError): |
| 2779 | multiprocessing.connection.Listener(r'\\.\test') |
| 2780 | |
Antoine Pitrou | 6d20cba | 2012-04-03 20:12:23 +0200 | [diff] [blame] | 2781 | @unittest.skipUnless(WIN32, "skipped on non-Windows platforms") |
| 2782 | def test_invalid_family_win32(self): |
| 2783 | with self.assertRaises(ValueError): |
| 2784 | multiprocessing.connection.Listener('/var/test.pipe') |
Antoine Pitrou | 93bba8f | 2012-04-01 17:25:49 +0200 | [diff] [blame] | 2785 | |
Alexandre Vassalotti | c57a84f | 2009-07-17 12:07:01 +0000 | [diff] [blame] | 2786 | testcases_other = [OtherTest, TestInvalidHandle, TestInitializers, |
Antoine Pitrou | 93bba8f | 2012-04-01 17:25:49 +0200 | [diff] [blame] | 2787 | TestStdinBadfiledescriptor, TestWait, TestInvalidFamily] |
Neal Norwitz | 5d6415e | 2008-08-25 01:53:32 +0000 | [diff] [blame] | 2788 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2789 | # |
| 2790 | # |
| 2791 | # |
| 2792 | |
| 2793 | def test_main(run=None): |
Jesse Noller | d00df3c | 2008-06-18 14:22:48 +0000 | [diff] [blame] | 2794 | if sys.platform.startswith("linux"): |
| 2795 | try: |
| 2796 | lock = multiprocessing.RLock() |
| 2797 | except OSError: |
Benjamin Peterson | e549ead | 2009-03-28 21:42:05 +0000 | [diff] [blame] | 2798 | raise unittest.SkipTest("OSError raises on RLock creation, see issue 3111!") |
Benjamin Peterson | 3c0dd06 | 2008-06-17 22:43:48 +0000 | [diff] [blame] | 2799 | |
Charles-François Natali | 221ef67 | 2011-11-22 18:55:22 +0100 | [diff] [blame] | 2800 | check_enough_semaphores() |
| 2801 | |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2802 | if run is None: |
| 2803 | from test.support import run_unittest as run |
| 2804 | |
| 2805 | util.get_temp_dir() # creates temp directory for use by all processes |
| 2806 | |
| 2807 | multiprocessing.get_logger().setLevel(LOG_LEVEL) |
| 2808 | |
Benjamin Peterson | 4118174 | 2008-07-02 20:22:54 +0000 | [diff] [blame] | 2809 | ProcessesMixin.pool = multiprocessing.Pool(4) |
| 2810 | ThreadsMixin.pool = multiprocessing.dummy.Pool(4) |
| 2811 | ManagerMixin.manager.__init__() |
| 2812 | ManagerMixin.manager.start() |
| 2813 | ManagerMixin.pool = ManagerMixin.manager.Pool(4) |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2814 | |
| 2815 | testcases = ( |
Benjamin Peterson | 4118174 | 2008-07-02 20:22:54 +0000 | [diff] [blame] | 2816 | sorted(testcases_processes.values(), key=lambda tc:tc.__name__) + |
| 2817 | sorted(testcases_threads.values(), key=lambda tc:tc.__name__) + |
Neal Norwitz | 5d6415e | 2008-08-25 01:53:32 +0000 | [diff] [blame] | 2818 | sorted(testcases_manager.values(), key=lambda tc:tc.__name__) + |
| 2819 | testcases_other |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2820 | ) |
| 2821 | |
| 2822 | loadTestsFromTestCase = unittest.defaultTestLoader.loadTestsFromTestCase |
| 2823 | suite = unittest.TestSuite(loadTestsFromTestCase(tc) for tc in testcases) |
Richard Oudkerk | 225cb8d | 2012-05-02 19:36:11 +0100 | [diff] [blame] | 2824 | try: |
| 2825 | run(suite) |
| 2826 | finally: |
| 2827 | ThreadsMixin.pool.terminate() |
| 2828 | ProcessesMixin.pool.terminate() |
| 2829 | ManagerMixin.pool.terminate() |
| 2830 | ManagerMixin.pool.join() |
| 2831 | ManagerMixin.manager.shutdown() |
Richard Oudkerk | a6becaa | 2012-05-03 18:29:02 +0100 | [diff] [blame] | 2832 | ManagerMixin.manager.join() |
Richard Oudkerk | 225cb8d | 2012-05-02 19:36:11 +0100 | [diff] [blame] | 2833 | ThreadsMixin.pool.join() |
| 2834 | ProcessesMixin.pool.join() |
| 2835 | del ProcessesMixin.pool, ThreadsMixin.pool, ManagerMixin.pool |
Benjamin Peterson | e711caf | 2008-06-11 16:44:04 +0000 | [diff] [blame] | 2836 | |
| 2837 | def main(): |
| 2838 | test_main(unittest.TextTestRunner(verbosity=2).run) |
| 2839 | |
| 2840 | if __name__ == '__main__': |
| 2841 | main() |