8000 gh-112075: Iterating a dict shouldn't require locks (#115108) · python/cpython@1002fbe · GitHub
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DinoVDinoV
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gh-112075: Iterating a dict shouldn't require locks (#115108)
Makes iteration of a dict be lock free for the forward iteration case.
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‎Include/internal/pycore_dict.h

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@@ -212,6 +212,7 @@ static inline PyDictUnicodeEntry* DK_UNICODE_ENTRIES(PyDictKeysObject *dk) {
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#define DICT_WATCHER_AND_MODIFICATION_MASK ((1 << (DICT_MAX_WATCHERS + DICT_WATCHED_MUTATION_BITS)) - 1)
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#define DICT_VALUES_SIZE(values) ((uint8_t *)values)[-1]
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#define DICT_VALUES_USED_SIZE(values) ((uint8_t *)values)[-2]
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#ifdef Py_GIL_DISABLED
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#define DICT_NEXT_VERSION(INTERP) \

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