Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

gh-111972: unicode: Make ucnhash_capicapsule initialization thread-safe #112249

Merged
merged 6 commits into from
Nov 30, 2023
Merged

gh-111972: unicode: Make ucnhash_capicapsule initialization thread-safe #112249

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
6 commits
Select commit Hold shift + click to select a range
0022adc
gh-111972: Make ucnhash_capi initialization thread-safe
Eclips4 Nov 18, 2023
06111d7
Address review
Eclips4 Nov 19, 2023
ca5b5b6
Remove unused variable
Eclips4 Nov 19, 2023
6e2dbbd
Fix test
Eclips4 Nov 19, 2023
4102839
Restore previous behaviour
Eclips4 Nov 20, 2023
bfbb393
Fix indent
Eclips4 Nov 20, 2023
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
2 changes: 2 additions & 0 deletions Include/internal/pycore_ucnhash.h
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@ typedef struct {

} _PyUnicode_Name_CAPI;

extern _PyUnicode_Name_CAPI* _PyUnicode_GetNameCAPI(void);

#ifdef __cplusplus
}
#endif
Expand Down
17 changes: 17 additions & 0 deletions Objects/unicodeobject.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5869,6 +5869,23 @@ PyUnicode_AsUTF16String(PyObject *unicode)
return _PyUnicode_EncodeUTF16(unicode, NULL, 0);
}

_PyUnicode_Name_CAPI *
erlend-aasland marked this conversation as resolved.
Show resolved Hide resolved
_PyUnicode_GetNameCAPI(void)
{
PyInterpreterState *interp = _PyInterpreterState_GET();
_PyUnicode_Name_CAPI *ucnhash_capi;

ucnhash_capi = _Py_atomic_load_ptr(&interp->unicode.ucnhash_capi);
if (ucnhash_capi == NULL) {
ucnhash_capi = (_PyUnicode_Name_CAPI *)PyCapsule_Import(
PyUnicodeData_CAPSULE_NAME, 1);

// It's fine if we overwite the value here. It's always the same value.
_Py_atomic_store_ptr(&interp->unicode.ucnhash_capi, ucnhash_capi);
}
return ucnhash_capi;
}

/* --- Unicode Escape Codec ----------------------------------------------- */

PyObject *
Expand Down
16 changes: 7 additions & 9 deletions Python/codecs.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -932,8 +932,6 @@ PyObject *PyCodec_BackslashReplaceErrors(PyObject *exc)
return Py_BuildValue("(Nn)", res, end);
}

static _PyUnicode_Name_CAPI *ucnhash_capi = NULL;

PyObject *PyCodec_NameReplaceErrors(PyObject *exc)
{
if (PyObject_TypeCheck(exc, (PyTypeObject *)PyExc_UnicodeEncodeError)) {
Expand All @@ -954,13 +952,13 @@ PyObject *PyCodec_NameReplaceErrors(PyObject *exc)
return NULL;
if (!(object = PyUnicodeEncodeError_GetObject(exc)))
return NULL;
if (!ucnhash_capi) {
/* load the unicode data module */
ucnhash_capi = (_PyUnicode_Name_CAPI *)PyCapsule_Import(
PyUnicodeData_CAPSULE_NAME, 1);
if (!ucnhash_capi) {
return NULL;
}
_PyUnicode_Name_CAPI *ucnhash_capi = _PyUnicode_GetNameCAPI();
if (ucnhash_capi == NULL) {
PyErr_SetString(
Eclips4 marked this conversation as resolved.
Show resolved Hide resolved
PyExc_UnicodeError,
"\\N escapes not supported (can't load unicodedata module)"
);
return NULL;
}
for (i = start, ressize = 0; i < end; ++i) {
/* object is guaranteed to be "ready" */
Expand Down
Loading