bpo-40521: Per-interpreter interned strings by vstinner · Pull Request #20085 · python/cpython

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vstinner marked this pull request as ready for review

vstinner changed the title [WIP] bpo-40521: Per-interpreter interned strings bpo-40521: Per-interpreter interned strings

Make the Unicode dictionary of interned strings compatible with
subinterpreters.

Remove the INTERN_NAME_STRINGS macro in typeobject.c: names are
always now interned (even if EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
macro is defined).

_PyUnicode_ClearInterned() now uses PyDict_Next() to no longer
allocate memory, to ensure that the interned dictionary is cleared.

vstinner deleted the unicode_interned_subinterp branch

adorilson pushed a commit to adorilson/cpython that referenced this pull request

Make the Unicode dictionary of interned strings compatible with
subinterpreters.

Remove the INTERN_NAME_STRINGS macro in typeobject.c: names are
always now interned (even if EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
macro is defined).

_PyUnicode_ClearInterned() now uses PyDict_Next() to no longer
allocate memory, to ensure that the interned dictionary is cleared.

vstinner added a commit that referenced this pull request

)" (GH-30422)

This reverts commit ea25180.

Keep "assert(interned == NULL);" in _PyUnicode_Fini(), but only for
the main interpreter.

Keep _PyUnicode_ClearInterned() changes avoiding the creation of a
temporary Python list object.

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vstinner added a commit that referenced this pull request

…GH-20085)" (GH-30422) (GH-30425)

This reverts commit ea25180.

Keep "assert(interned == NULL);" in _PyUnicode_Fini(), but only for
the main interpreter.

Keep _PyUnicode_ClearInterned() changes avoiding the creation of a
temporary Python list object.

Leave the PyInterpreterState structure unchanged to keep the ABI
backward compatibility with Python 3.10.0: rename the "interned"
member to "unused_interned".

(cherry picked from commit 35d6540)

ericsnowcurrently added a commit to ericsnowcurrently/cpython that referenced this pull request