Mirror
/
cpython
mirror of https://github.com/python/cpython
4
1
Fork 0
Code Issues Releases Wiki Activity
cpython/Lib/multiprocessing
History
Asheesh Laroia bf2e7e55d7
bpo-40692: Run more test_concurrent_futures tests (GH-20239) 
In the case of multiprocessing.synchronize() being missing, the
test_concurrent_futures test suite now skips only the tests that
require multiprocessing.synchronize().

Validate that multiprocessing.synchronize exists as part of
_check_system_limits(), allowing ProcessPoolExecutor to raise
NotImplementedError during __init__, rather than crashing with
ImportError during __init__ when creating a lock imported from
multiprocessing.synchronize.

Use _check_system_limits() to disable tests of
ProcessPoolExecutor on systems without multiprocessing.synchronize.

Running the test suite without multiprocessing.synchronize reveals
that Lib/compileall.py crashes when it uses a ProcessPoolExecutor.
Therefore, change Lib/compileall.py to call _check_system_limits()
before creating the ProcessPoolExecutor.

Note that both Lib/compileall.py and Lib/test/test_compileall.py
were attempting to sanity-check ProcessPoolExecutor by expecting
ImportError. In multiprocessing.resource_tracker, sem_unlink() is also absent
on platforms where POSIX semaphores aren't available. Avoid using
sem_unlink() if it, too, does not exist.

Co-authored-by: Pablo Galindo <Pablogsal@gmail.com>
 		2021-02-08 03:15:51 +00:00
..
dummy
…
__init__.py
…
connection.py bpo-39850: Add support for abstract sockets in multiprocessing (GH-18866) 2020-03-09 13:48:01 +00:00
context.py bpo-39244: multiprocessing return default start method first on macOS (GH-18625) 2020-05-26 17:54:21 +03:00
forkserver.py bpo-40094: Add os.waitstatus_to_exitcode() (GH-19201) 2020-04-01 18:49:29 +02:00
heap.py
…
managers.py Fix two typos in multiprocessing (GH-19571) 2020-04-18 08:58:29 +02:00
pool.py bpo-40443: Remove unused imports in stdlib (GH-19815) 2020-05-01 02:38:00 +02:00
popen_fork.py bpo-40094: Add os.waitstatus_to_exitcode() (GH-19201) 2020-04-01 18:49:29 +02:00
popen_forkserver.py
…
popen_spawn_posix.py
…
popen_spawn_win32.py bpo-38092: Reduce overhead when using multiprocessing in a Windows virtual environment (GH-16098) 2019-09-13 09:40:19 -07:00
process.py bpo-35727: Use exit code 0 on sys.exit() in multiprocessing.Process. (GH-11538) 2020-02-21 10:33:04 +01:00
queues.py bpo-30966: Add multiprocessing.SimpleQueue.close() (GH-19735) 2020-04-27 09:11:10 -07:00
reduction.py
…
resource_sharer.py bpo-40221: Update multiprocessing to use _at_fork_reinit (GH-19511) 2020-04-15 01:35:36 +09:00
resource_tracker.py bpo-40692: Run more test_concurrent_futures tests (GH-20239) 2021-02-08 03:15:51 +00:00
shared_memory.py bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556) 2020-08-30 20:03:11 +01:00
sharedctypes.py
…
spawn.py bpo-39439: Fix multiprocessing spawn path in a venv on Windows (GH-18158) 2020-01-28 21:34:23 +11:00
synchronize.py Fix typo in message from assert statement (GH-21283) 2020-08-17 19:08:55 +05:30
util.py bpo-40221: Update multiprocessing to use _at_fork_reinit (GH-19477) 2020-04-14 22:15:52 +09:00