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| author | Nathan Goldbaum <nathan.goldbaum@gmail.com> | 2025-01-03 07:40:24 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-01-03 07:40:24 (GMT) |
| commit | e7adeecc2b318505eb53bc779320f028be40cccc (patch) | |
| tree | 88a838c64c2fe5e3ff7b89d05fa49851ddbeedf5 /Doc/howto | |
| parent | 8eebe4e6d02bb4ad3f1ca6c52624186903dce893 (diff) | |
| download | cpython-e7adeecc2b318505eb53bc779320f028be40cccc.zip cpython-e7adeecc2b318505eb53bc779320f028be40cccc.tar.gz cpython-e7adeecc2b318505eb53bc779320f028be40cccc.tar.bz2 | |
gh-128426: Mention PySequence_Fast in free-threading C API HOWTO (#128428)
Diffstat (limited to 'Doc/howto')
| -rw-r--r-- | Doc/howto/free-threading-extensions.rst | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/Doc/howto/free-threading-extensions.rst b/Doc/howto/free-threading-extensions.rst index c1ad42e..95f2141 100644 --- a/Doc/howto/free-threading-extensions.rst +++ b/Doc/howto/free-threading-extensions.rst @@ -96,8 +96,10 @@ Most of the C API is thread-safe, but there are some exceptions. * **Struct Fields**: Accessing fields in Python C API objects or structs directly is not thread-safe if the field may be concurrently modified. -* **Macros**: Accessor macros like :c:macro:`PyList_GET_ITEM` and - :c:macro:`PyList_SET_ITEM` do not perform any error checking or locking. +* **Macros**: Accessor macros like :c:macro:`PyList_GET_ITEM`, + :c:macro:`PyList_SET_ITEM`, and macros like + :c:macro:`PySequence_Fast_GET_SIZE` that use the object returned by + :c:func:`PySequence_Fast` do not perform any error checking or locking. These macros are not thread-safe if the container object may be modified concurrently. * **Borrowed References**: C API functions that return |