Handle teardown race, add comment about shm subdirs
parent
bbe1ff19ef
commit
1b38628b09
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@ -98,7 +98,12 @@ class SharedInt:
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if _USE_POSIX:
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if _USE_POSIX:
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# We manually unlink to bypass all the "resource tracker"
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# We manually unlink to bypass all the "resource tracker"
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# nonsense meant for non-SC systems.
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# nonsense meant for non-SC systems.
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shm_unlink(self._shm.name)
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name = self._shm.name
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try:
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shm_unlink(name)
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except FileNotFoundError:
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# might be a teardown race here?
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log.warning(f'Shm for {name} already unlinked?')
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class _Token(BaseModel):
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class _Token(BaseModel):
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@ -536,6 +541,10 @@ def attach_shm_array(
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if key in _known_tokens:
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if key in _known_tokens:
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assert _Token.from_msg(_known_tokens[key]) == token, "WTF"
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assert _Token.from_msg(_known_tokens[key]) == token, "WTF"
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# XXX: ugh, looks like due to the ``shm_open()`` C api we can't
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# actually place files in a subdir, see discussion here:
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# https://stackoverflow.com/a/11103289
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# attach to array buffer and view as per dtype
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# attach to array buffer and view as per dtype
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shm = SharedMemory(name=key)
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shm = SharedMemory(name=key)
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shmarr = np.ndarray(
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shmarr = np.ndarray(
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