mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-25 04:34:37 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 11

Issue #28969: Fixed race condition in C implementation of functools.lru_cache.

Browse source 
KeyError could be raised when cached function with full cache was
simultaneously called from differen threads with the same uncached arguments.
This commit is contained in:
Serhiy Storchaka 2017-01-12 18:34:33 +02:00
parent 9b8dcc6b1c
commit 67796521dd
5 changed files with 78 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

1
Include/dictobject.h
View file

@ -102,6 +102,7 @@ PyAPI_FUNC(int) _PyDict_HasOnlyStringKeys(PyObject *mp);
Py_ssize_t _PyDict_KeysSize(PyDictKeysObject *keys);
Py_ssize_t _PyDict_SizeOf(PyDictObject *);
PyObject *_PyDict_Pop(PyDictObject *, PyObject *, PyObject *);
PyObject *_PyDict_Pop_KnownHash(PyDictObject *, PyObject *, Py_hash_t, PyObject *);
PyObject *_PyDict_FromKeys(PyObject *, PyObject *, PyObject *);
#define _PyDict_HasSplitTable(d) ((d)->ma_values != NULL)