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JournalLock: Implement non-win32 sub-process lock

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Athanasius 2021-03-24 14:56:30 +00:00 committed by Athanasius
parent 6d33ee0d8b
commit 1a1ad86840
1 changed files with 11 additions and 1 deletions
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12
tests/journal_lock.py/test_journal_lock.py
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@ -57,9 +57,19 @@ def other_process_lock(continue_q: mp.Queue, exit_q: mp.Queue, lockfile: pathlib
msvcrt.locking(lf.fileno(), msvcrt.LK_NBLCK, 4096)
except Exception as e:
print(f"sub-process: Unable to lock file: {e!r}")
print(f'sub-process: Unable to lock file: {e!r}')
return
else:
import fcntl
print('Not win32, using fcntl')
try:
fcntl.flock(lf, fcntl.LOCK_EX | fcntl.LOCK_NB)
except Exception as e:
print(f'sub-process: Unable to lock file: {e!r}')
print('Telling main process to go...')
continue_q.put('go', timeout=5)
# Wait for signal to exit