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* bpo-33671: Add support.MS_WINDOWS and support.MACOS (GH-7800)Victor Stinner2018-06-221-7/+5
| | | | | | | | * Add support.MS_WINDOWS: True if Python is running on Microsoft Windows. * Add support.MACOS: True if Python is running on Apple macOS. * Replace support.is_android with support.ANDROID * Replace support.is_jython with support.JYTHON * Cleanup code to initialize unix_shell
* bpo-33532: Fix test_multiprocessing_forkserver.test_ignore() (GH-7319)Victor Stinner2018-06-011-2/+5
| | | | Use also support.SOCK_MAX_SIZE, not only support.PIPE_MAX_SIZE, to get the size for a blocking send into a multiprocessing pipe.
* bpo-33532: Fix multiprocessing test_ignore() (#7262)Victor Stinner2018-05-311-2/+2
| | | | | Fix test_ignore() of multiprocessing tests like test_multiprocessing_forkserver: use support.PIPE_MAX_SIZE to make sure that send_bytes() blocks.
* Spelling fixes to docs, docstrings, and comments (GH-6374)Ville Skyttä2018-04-201-1/+1
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* bpo-32759: Free unused arenas in multiprocessing.heap (GH-5827)Antoine Pitrou2018-04-091-23/+58
| | | | | Large shared arrays allocated using multiprocessing would remain allocated until the process ends.
* FIX failure on OSX sem_getvalue (#6180)Thomas Moreau2018-03-211-2/+7
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* bpo-33078 - Fix queue size on pickling error (GH-6119)Thomas Moreau2018-03-211-0/+13
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* bpo-31804: Fix multiprocessing.Process with broken standard streams (#6079)Antoine Pitrou2018-03-111-2/+29
| | | | | In some conditions the standard streams will be None or closed in the child process (for example if using "pythonw" instead of "python" on Windows). Avoid failing with a non-0 exit code in those conditions. Report and initial patch by poxthegreat.
* bpo-28134: Auto-detect socket values from file descriptor (#1349)Christian Heimes2018-01-291-1/+1
| | | | | | | | | | | | | | | Fix socket(fileno=fd) by auto-detecting the socket's family, type, and proto from the file descriptor. The auto-detection can be overruled by passing in family, type, and proto explicitly. Without the fix, all socket except for TCP/IP over IPv4 are basically broken: >>> s = socket.create_connection(('www.python.org', 443)) >>> s <socket.socket fd=3, family=AddressFamily.AF_INET6, type=SocketKind.SOCK_STREAM, proto=6, laddr=('2003:58:bc4a:3b00:56ee:75ff:fe47:ca7b', 59730, 0, 0), raddr=('2a04:4e42:1b::223', 443, 0, 0)> >>> socket.socket(fileno=s.fileno()) <socket.socket fd=3, family=AddressFamily.AF_INET, type=SocketKind.SOCK_STREAM, proto=0, laddr=('2003:58:bc4a:3b00::%2550471192', 59730, 0, 2550471192), raddr=('2a04:4e42:1b:0:700c:e70b:ff7f:0%2550471192', 443, 0, 2550471192)> Signed-off-by: Christian Heimes <christian@python.org>
* bpo-31699 Deadlocks in `concurrent.futures.ProcessPoolExecutor` with ↵Thomas Moreau2018-01-051-0/+37
| | | | | | pickling error (#3895) Fix deadlocks in :class:`concurrent.futures.ProcessPoolExecutor` when task arguments or results cause pickling or unpickling errors. This should make sure that calls to the :class:`ProcessPoolExecutor` API always eventually return.
* bpo-32294: Fix multiprocessing test_semaphore_tracker() (#4885)Victor Stinner2017-12-151-1/+1
| | | | Run the child process with -E option to ignore the PYTHONWARNINGS environment variable.
* bpo-32297: Few misspellings found in Python source code comments. (#4803)Mike2017-12-141-1/+1
| | | | | | | | * Fix multiple typos in code comments * Add spacing in comments (test_logging.py, test_math.py) * Fix spaces at the beginning of comments in test_logging.py
* Replace KB unit with KiB (#4293)Victor Stinner2017-11-081-1/+1
| | | | | | | | | | | kB (*kilo* byte) unit means 1000 bytes, whereas KiB ("kibibyte") means 1024 bytes. KB was misused: replace kB or KB with KiB when appropriate. Same change for MB and GB which become MiB and GiB. Change the output of Tools/iobench/iobench.py. Round also the size of the documentation from 5.5 MB to 5 MiB.
* bpo-31310: multiprocessing's semaphore tracker should be launched again if ↵Antoine Pitrou2017-11-031-4/+39
| | | | | | | | | | | crashed (#3247) * bpo-31310: multiprocessing's semaphore tracker should be launched again if crashed * Avoid mucking with process state in test. Add a warning if the semaphore process died, as semaphores may then be leaked. * Add NEWS entry
* bpo-31308: If multiprocessing's forkserver dies, launch it again when ↵Antoine Pitrou2017-11-031-0/+48
| | | | | | | | | | | | | | | | | | | | | | necessary (#3246) * bpo-31308: If multiprocessing's forkserver dies, launch it again when necessary. * Fix test on Windows * Add NEWS entry * Adopt a different approach: ignore SIGINT and SIGTERM, as in semaphore tracker. * Fix comment * Make sure the test doesn't muck with process state * Also test previously-started processes * Update 2017-08-30-17-59-36.bpo-31308.KbexyC.rst * Avoid masking SIGTERM in forkserver. It's not necessary and causes a race condition in test_many_processes.
* bpo-28326: Fix multiprocessing.Process when stdout and/or stderr is closed ↵Antoine Pitrou2017-10-221-0/+21
| | | | or None. (#4073)
* bpo-31510: Fix multiprocessing test_many_processes() on macOS (#3857)Victor Stinner2017-10-021-1/+6
| | | | On macOS, a process can exit with -SIGKILL if it is killed "early" with SIGTERM.
* bpo-31234: test_multiprocessing: wait 30 seconds (#3599)Victor Stinner2017-09-151-14/+17
| | | | Give 30 seconds to join_process(), instead of 5 or 10 seconds, to wait until the process completes.
* bpo-31234: Add support.join_thread() helper (#3587)Victor Stinner2017-09-141-11/+17
| | | | join_thread() joins a thread but raises an AssertionError if the thread is still alive after timeout seconds.
* bpo-18966: non-daemonic threads created by a multiprocessing.Process should ↵Antoine Pitrou2017-08-161-0/+26
| | | | | | | | be joined on exit (#3111) * bpo-18966: non-daemonic threads created by a multiprocessing.Process should be joined on exit * Add NEWS blurb
* bpo-31069, test_multiprocessing: Fix dangling process (#3103)Victor Stinner2017-08-161-1/+2
| | | | Fix a warning about dangling processes in test_rapid_restart() of _test_multiprocessing: join the process.
* bpo-26762: _test_multiprocessing reports dangling (#3064)Victor Stinner2017-08-101-0/+6
| | | | _test_multiprocessing now marks the test as ENV_CHANGED on dangling process or thread.
* bpo-26762: test_multiprocessing close more queues (#2855)Victor Stinner2017-07-251-3/+15
| | | | | | * Close explicitly queues to make sure that we don't leave dangling threads * test_queue_in_process(): remove unused queue * test_access() joins also the process to fix a random warning
* test_multiprocessing detects dangling per test case (#2841)Victor Stinner2017-07-241-14/+67
| | | | | | | | | | | | | bpo-26762: test_multiprocessing now detects dangling processes and threads per test case classes: * setUpClass()/tearDownClass() of mixin classes now check if multiprocessing.process._dangling or threading._dangling was modified to detect "dangling" processses and threads. * ManagerMixin.tearDownClass() now also emits a warning if it still has more than one active child process after 5 seconds. * tearDownModule() now checks for dangling processes and threads before sleep 500 ms. And it now only sleeps if there is a least one dangling process or thread.
* test_multiprocessing: Fix dangling process/thread (#2850)Victor Stinner2017-07-241-2/+22
| | | | | | | bpo-26762: Fix more dangling processes and threads in test_multiprocessing: * Queue: call close() followed by join_thread() * Process: call join() or self.addCleanup(p.join)
* bpo-26762: Avoid daemon process in _test_multiprocessing (#2842)Victor Stinner2017-07-241-2/+4
| | | | | test_level() of _test_multiprocessing._TestLogging now uses regular processes rather than daemon processes to prevent zombi processes (to not "leak" processes).
* bpo-26732: fix too many fds in processes started with the "forkserver" ↵Antoine Pitrou2017-07-221-0/+34
| | | | | | | | | | method (#2813) * bpo-26732: fix too many fds in processes started with the "forkserver" method A child process would inherit as many fds as the number of still-running children. * Add blurb and test comment
* Fix test failure without ctypes (#2802)Antoine Pitrou2017-07-211-1/+1
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* bpo-19896: Add typecodes 'q' and 'Q' to multiprocessing.sharedctypes (#2741)Gareth Rees2017-07-211-5/+12
| | | | | | | | | | * bpo-19896: Add typcodes 'q' and 'Q' to multiprocessing.sharedctypes. Patch by Antony Lee. * Add NEWS entry. * Slightly tweak NEWS entry Make it clear this is more of a fix rather than a new feature.
* bpo-30794: added kill() method to multiprocessing.Process (#2528)Vitor Pereira2017-07-181-7/+15
| | | | | | | | | | | | | | * bpo-30794: added kill() method to multiprocessing.Process * Added entries to documentation and NEWS * Refactored test_terminate and test_kill * Fix SIGTERM and SIGKILL being used on Windows for the tests * Added "versionadded" marker to the documentation * Fix trailing whitespace in doc
* bpo-29293: multiprocessing.Condition.notify() lacks parameter `n` (#2480)Antoine Pitrou2017-07-041-7/+59
| | | | | | * bpo-29293: multiprocessing.Condition.notify() lacks parameter `n` * Add NEWS blurb
* Clear potential ref cycle between Process and Process target (#2470)Antoine Pitrou2017-06-281-0/+18
| | | | | | | | | * Clear potential ref cycle between Process and Process target Besides Process.join() not being called, this was an indirect cause of bpo-30775. The threading module already does this. * Add issue reference
* bpo-30775: Fix refleaks in test_multiprocessing (#2467)Antoine Pitrou2017-06-281-2/+17
| | | Forgetting to call Process.join() can keep some resources alive.
* Fix bpo-30596: Add close() method to multiprocessing.Process (#2010)Antoine Pitrou2017-06-241-0/+36
| | | | | | | | | | * Fix bpo-30596: Add close() method to multiprocessing.Process * Raise ValueError if close() is called before the Process is finished running * Add docs * Add NEWS blurb
* bpo-30595: Increase test_queue_feeder_donot_stop_onexc() timeout (#2148)Victor Stinner2017-06-131-1/+2
| | | | | _test_multiprocessing.test_queue_feeder_donot_stop_onexc() now uses a timeout of 1 second on Queue.get(), instead of 0.1 second, for slow buildbots.
* bpo-24484: Avoid race condition in multiprocessing cleanup (#2159)Antoine Pitrou2017-06-131-0/+63
| | | | | | | | | | | * bpo-24484: Avoid race condition in multiprocessing cleanup The finalizer registry can be mutated while inspected by multiprocessing at process exit. * Use test.support.start_threads() * Add Misc/NEWS
* Fix bpo-30589: improve Process.exitcode with forkserver (#1989)Antoine Pitrou2017-06-121-2/+37
| | | | | | | | * Fix bpo-30589: improve Process.exitcode with forkserver When the child is killed, Process.exitcode should return -signum, not 255. * Add Misc/NEWS
* bpo-30414: multiprocessing.Queue._feed do not break from main loop on exc ↵grzgrzgrz32017-05-251-0/+14
| | | | | | | | | | | | | | | | | | (#1683) * bpo-30414: multiprocesing.Queue._feed do not break from main loop on exc Queue background running thread was not handling exceptions correctly. Any exception occurred inside thread (putting unpickable object) cause feeder to finish running. After that every message put into queue is silently ignored. * bpo-30414: multiprocesing.Queue._feed do not break from main loop on exc Queue background running thread was not handling exceptions correctly. Any exception occurred inside thread (putting unpickable object) cause feeder to finish running. After that every message put into queue is silently ignored.
* bpo-30301: Fix AttributeError when using SimpleQueue.empty() (#1601)Xiang Zhang2017-05-171-0/+36
| | | | | Under *spawn* and *forkserver* start methods, SimpleQueue.empty() could raise AttributeError due to not setting _poll in __setstate__.
* Relax test timing (bpo-29861) to avoid sporadic failures (#1120)Antoine Pitrou2017-04-141-0/+1
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* bpo-28699: fix abnormal behaviour of pools in multiprocessing.pool (GH-693)Xiang Zhang2017-03-291-1/+58
| | | | | an exception raised at the very first of an iterable would cause pools behave abnormally (swallow the exception or hang)
* bpo-29861: release references to multiprocessing Pool tasks (#743)Antoine Pitrou2017-03-241-0/+28
| | | | | | | | | | * bpo-29861: release references to multiprocessing Pool tasks Release references to tasks, their arguments and their results as soon as they are finished, instead of keeping them alive until another task arrives. * Comments in test
* Issue #28779: multiprocessing.set_forkserver_preload() would crash the ↵Antoine Pitrou2016-12-101-0/+13
|\ | | | | | | forkserver process if a preloaded module instantiated some multiprocessing objects such as locks.
| * Issue #28779: multiprocessing.set_forkserver_preload() would crash the ↵Antoine Pitrou2016-12-101-0/+13
| | | | | | | | forkserver process if a preloaded module instantiated some multiprocessing objects such as locks.
| * Issue #27895: Spelling fixes (Contributed by Ville Skyttä).Martin Panter2016-09-071-1/+1
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| * Issue #25654:Victor Stinner2016-03-251-5/+13
| | | | | | | | | | | | | | | | | | * multiprocessing: open file with closefd=False to avoid ResourceWarning * _test_multiprocessing: open file with O_EXCL to detect bugs in tests (if a previous test forgot to remove TESTFN) * test_sys_exit(): remove TESTFN after each loop iteration Initial patch written by Serhiy Storchaka.
* | #27364: fix "incorrect" uses of escape character in the stdlib.R David Murray2016-09-081-1/+1
| | | | | | | | | | | | | | And most of the tools. Patch by Emanual Barry, reviewed by me, Serhiy Storchaka, and Martin Panter.
* | Fixes issue #6766: Updated multiprocessing Proxy Objects to support nestingDavin Potts2016-09-071-2/+68
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* | Issue #27895: Spelling fixes (Contributed by Ville Skyttä).Raymond Hettinger2016-08-301-1/+1
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* | Issue #25654:Victor Stinner2016-03-251-5/+13
| | | | | | | | | | | | | | | | | | * multiprocessing: open file with closefd=False to avoid ResourceWarning * _test_multiprocessing: open file with O_EXCL to detect bugs in tests (if a previous test forgot to remove TESTFN) * test_sys_exit(): remove TESTFN after each loop iteration Initial patch written by Serhiy Storchaka.
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