8000 gh-120317: Lock around global state in the tokenize module by lysnikolaou · Pull Request #120318 · python/cpython · GitHub
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gh-120317: Lock around global state in the tokenize module #120318

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Merged
merged 13 commits into from
Jul 16, 2024
Merged

gh-120317: Lock around global state in the tokenize module #120318

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900dd6a
gh-120317: Lock around tokenizer calls in the tokenizer module
lysnikolaou Jun 10, 2024
abf568a
Use Py_BEGIN_CRITICAL_SECTION
lysnikolaou Jun 10, 2024
9dfe174
Add more locking around global tokenizer state
lysnikolaou Jun 10, 2024
5fd07b6
Add test
lysnikolaou Jun 10, 2024
814d9af
Address feedback & improve test
lysnikolaou Jun 10, 2024
c1093be
Guard atomic store behind Py_GIL_DISABLED
lysnikolaou Jun 10, 2024
117d256
Add requires working threading decorator to test
lysnikolaou Jun 10, 2024
975f01a
Merge branch 'main' into tokenize-thread-safety
lysnikolaou Jun 11, 2024
ca466fa
Lock around all of tokenizeriter_next
lysnikolaou Jun 11, 2024
3abb8ab
Merge branch 'main' into tokenize-thread-safety
lysnikolaou Jun 12, 2024
601e539
Fix formatting
lysnikolaou Jun 12, 2024
6290f19
Merge branch 'main' into tokenize-thread-safety
lysnikolaou Jul 1, 2024
0ddde2f
Change sleeping time
lysnikolaou Jul 1, 2024
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Guard atomic store behind Py_GIL_DISABLED
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@lysnikolaou
lysnikolaou committed Jun 10, 2024
commit c1093be27ba1631b4c2c0e94ea560584ac02434a
10 changes: 10 additions & 0 deletions Python/Python-tokenize.c
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Expand Up @@ -247,7 +247,13 @@ tokenizeriter_next(tokenizeriterobject *it)
}
if (it->done || type == ERRORTOKEN) {
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Don't we need to protect the read? Otherwise we may get weird partial reads no?

PyErr_SetString(PyExc_StopIteration, "EOF");

#ifdef Py_GIL_DISABLED
_Py_atomic_store_int(&it->done, 1);
#else
it->done = 1;
#endif

goto exit;
}
PyObject *str = NULL;
Expand Down Expand Up @@ -332,7 +338,11 @@ tokenizeriter_next(tokenizeriterobject *it)
exit:
_PyToken_Free(&token);
if (type == ENDMARKER) {
#ifdef Py_GIL_DISABLED
_Py_atomic_store_int(&it->done, 1);
#else
it->done = 1;
#endif
}
return result;
}
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0