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bpo-36346: Make using the legacy Unicode C API optional (GH-21437) 

Add compile time option USE_UNICODE_WCHAR_CACHE. Setting it to 0
makes the interpreter not using the wchar_t cache and the legacy Unicode C API.
This commit is contained in:
Serhiy Storchaka 2020-07-10 23:26:06 +03:00 committed by GitHub
parent 9650fe0197
commit 4c8f09d7ce
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
17 changed files with 360 additions and 99 deletions
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2
Include/cpython/unicodeobject.h
View File

@ -11,7 +11,9 @@
/* --- Internal Unicode Operations ---------------------------------------- */
#ifndef USE_UNICODE_WCHAR_CACHE
# define USE_UNICODE_WCHAR_CACHE 1
#endif /* USE_UNICODE_WCHAR_CACHE */
/* Since splitting on whitespace is an important use case, and
whitespace in most situations is solely ASCII whitespace, we

8
Lib/test/support/__init__.py
View File

@ -36,6 +36,11 @@ from .warnings_helper import (
from .testresult import get_test_runner
try:
from _testcapi import unicode_legacy_string
except ImportError:
unicode_legacy_string = None
__all__ = [
# globals
"PIPE_MAX_SIZE", "verbose", "max_memuse", "use_resources", "failfast",
@ -426,6 +431,9 @@ def requires_lzma(reason='requires lzma'):
lzma = None
return unittest.skipUnless(lzma, reason)
requires_legacy_unicode_capi = unittest.skipUnless(unicode_legacy_string,
'requires legacy Unicode C API')
is_jython = sys.platform.startswith('java')
is_android = hasattr(sys, 'getandroidapilevel')

2
Lib/test/test_csv.py
View File

@ -250,9 +250,9 @@ class Test_Csv(unittest.TestCase):
self.assertRaises(OSError, writer.writerows, BadIterable())
@support.cpython_only
@support.requires_legacy_unicode_capi
def test_writerows_legacy_strings(self):
import _testcapi
c = _testcapi.unicode_legacy_string('a')
with TemporaryFile("w+", newline='') as fileobj:
writer = csv.writer(fileobj)

5
Lib/test/test_decimal.py
View File

@ -33,7 +33,8 @@ import unittest
import numbers
import locale
from test.support import (run_unittest, run_doctest, is_resource_enabled,
requires_IEEE_754, requires_docstrings)
requires_IEEE_754, requires_docstrings,
requires_legacy_unicode_capi)
from test.support import (TestFailed,
run_with_locale, cpython_only)
from test.support.import_helper import import_fresh_module
@ -582,6 +583,7 @@ class ExplicitConstructionTest(unittest.TestCase):
self.assertRaises(InvalidOperation, Decimal, "1_2_\u00003")
@cpython_only
@requires_legacy_unicode_capi
def test_from_legacy_strings(self):
import _testcapi
Decimal = self.decimal.Decimal
@ -2817,6 +2819,7 @@ class ContextAPItests(unittest.TestCase):
Overflow])
@cpython_only
@requires_legacy_unicode_capi
def test_from_legacy_strings(self):
import _testcapi
c = self.decimal.Context()

4
Lib/test/test_getargs2.py
View File

@ -976,6 +976,7 @@ class String_TestCase(unittest.TestCase):
buf = bytearray()
self.assertRaises(ValueError, getargs_et_hash, 'abc\xe9', 'latin1', buf)
@support.requires_legacy_unicode_capi
def test_u(self):
from _testcapi import getargs_u
self.assertEqual(getargs_u('abc\xe9'), 'abc\xe9')
@ -985,6 +986,7 @@ class String_TestCase(unittest.TestCase):
self.assertRaises(TypeError, getargs_u, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_u, None)
@support.requires_legacy_unicode_capi
def test_u_hash(self):
from _testcapi import getargs_u_hash
self.assertEqual(getargs_u_hash('abc\xe9'), 'abc\xe9')
@ -994,6 +996,7 @@ class String_TestCase(unittest.TestCase):
self.assertRaises(TypeError, getargs_u_hash, memoryview(b'memoryview'))
self.assertRaises(TypeError, getargs_u_hash, None)
@support.requires_legacy_unicode_capi
def test_Z(self):
from _testcapi import getargs_Z
self.assertEqual(getargs_Z('abc\xe9'), 'abc\xe9')
@ -1003,6 +1006,7 @@ class String_TestCase(unittest.TestCase):
self.assertRaises(TypeError, getargs_Z, memoryview(b'memoryview'))
self.assertIsNone(getargs_Z(None))
@support.requires_legacy_unicode_capi
def test_Z_hash(self):
from _testcapi import getargs_Z_hash
self.assertEqual(getargs_Z_hash('abc\xe9'), 'abc\xe9')

4
Lib/test/test_unicode.py
View File

@ -723,6 +723,7 @@ class UnicodeTest(string_tests.CommonTest,
self.assertFalse("0".isidentifier())
@support.cpython_only
@support.requires_legacy_unicode_capi
def test_isidentifier_legacy(self):
import _testcapi
u = '𝖀𝖓𝖎𝖈𝖔𝖉𝖊'
@ -2350,6 +2351,7 @@ class UnicodeTest(string_tests.CommonTest,
self.assertEqual(len(args), 1)
@support.cpython_only
@support.requires_legacy_unicode_capi
def test_resize(self):
from _testcapi import getargs_u
for length in range(1, 100, 7):
@ -2920,6 +2922,7 @@ class CAPITest(unittest.TestCase):
self.assertRaises(SystemError, unicode_copycharacters, s, 0, b'', 0, 0)
@support.cpython_only
@support.requires_legacy_unicode_capi
def test_encode_decimal(self):
from _testcapi import unicode_encodedecimal
self.assertEqual(unicode_encodedecimal('123'),
@ -2936,6 +2939,7 @@ class CAPITest(unittest.TestCase):
unicode_encodedecimal, "123\u20ac", "replace")
@support.cpython_only
@support.requires_legacy_unicode_capi
def test_transform_decimal(self):
from _testcapi import unicode_transformdecimaltoascii as transform_decimal
self.assertEqual(transform_decimal('123'),

12
Modules/_io/fileio.c
View File

@ -270,7 +270,14 @@ _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
if (!PyUnicode_FSDecoder(nameobj, &stringobj)) {
return -1;
}
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
widename = PyUnicode_AsUnicode(stringobj);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
widename = PyUnicode_AsWideCharString(stringobj, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (widename == NULL)
return -1;
#else
@ -491,6 +498,11 @@ _io_FileIO___init___impl(fileio *self, PyObject *nameobj, const char *mode,
internal_close(self);
done:
#ifdef MS_WINDOWS
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(widename);
#endif /* USE_UNICODE_WCHAR_CACHE */
#endif
Py_CLEAR(stringobj);
return ret;
}

16
Modules/_testcapimodule.c
View File

@ -1668,6 +1668,7 @@ exit:
static volatile int x;
#if USE_UNICODE_WCHAR_CACHE
/* Ignore use of deprecated APIs */
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
@ -1772,6 +1773,8 @@ test_Z_code(PyObject *self, PyObject *Py_UNUSED(ignored))
Py_DECREF(tuple);
Py_RETURN_NONE;
}
_Py_COMP_DIAG_POP
#endif /* USE_UNICODE_WCHAR_CACHE */
static PyObject *
test_widechar(PyObject *self, PyObject *Py_UNUSED(ignored))
@ -1824,6 +1827,10 @@ test_widechar(PyObject *self, PyObject *Py_UNUSED(ignored))
return raiseTestError("test_widechar",
"PyUnicode_FromWideChar(L\"\\U00110000\", 1) didn't fail");
#if USE_UNICODE_WCHAR_CACHE
/* Ignore use of deprecated APIs */
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
wide = PyUnicode_FromUnicode(invalid, 1);
if (wide == NULL)
PyErr_Clear();
@ -1844,11 +1851,12 @@ test_widechar(PyObject *self, PyObject *Py_UNUSED(ignored))
return raiseTestError("test_widechar",
"PyUnicode_Ready() didn't fail");
}
_Py_COMP_DIAG_POP
#endif /* USE_UNICODE_WCHAR_CACHE */
#endif
Py_RETURN_NONE;
}
_Py_COMP_DIAG_POP
static PyObject *
unicode_aswidechar(PyObject *self, PyObject *args)
@ -2024,6 +2032,7 @@ unicode_copycharacters(PyObject *self, PyObject *args)
return Py_BuildValue("(Nn)", to_copy, copied);
}
#if USE_UNICODE_WCHAR_CACHE
/* Ignore use of deprecated APIs */
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
@ -2096,6 +2105,7 @@ unicode_legacy_string(PyObject *self, PyObject *args)
return u;
}
_Py_COMP_DIAG_POP
#endif /* USE_UNICODE_WCHAR_CACHE */
static PyObject *
getargs_w_star(PyObject *self, PyObject *args)
@ -5398,8 +5408,10 @@ static PyMethodDef TestMethods[] = {
{"codec_incrementaldecoder",
(PyCFunction)codec_incrementaldecoder, METH_VARARGS},
{"test_s_code", test_s_code, METH_NOARGS},
#if USE_UNICODE_WCHAR_CACHE
{"test_u_code", test_u_code, METH_NOARGS},
{"test_Z_code", test_Z_code, METH_NOARGS},
#endif /* USE_UNICODE_WCHAR_CACHE */
{"test_widechar", test_widechar, METH_NOARGS},
{"unicode_aswidechar", unicode_aswidechar, METH_VARARGS},
{"unicode_aswidecharstring",unicode_aswidecharstring, METH_VARARGS},
@ -5408,9 +5420,11 @@ static PyMethodDef TestMethods[] = {
{"unicode_asutf8andsize", unicode_asutf8andsize, METH_VARARGS},
{"unicode_findchar", unicode_findchar, METH_VARARGS},
{"unicode_copycharacters", unicode_copycharacters, METH_VARARGS},
#if USE_UNICODE_WCHAR_CACHE
{"unicode_encodedecimal", unicode_encodedecimal, METH_VARARGS},
{"unicode_transformdecimaltoascii", unicode_transformdecimaltoascii, METH_VARARGS},
{"unicode_legacy_string", unicode_legacy_string, METH_VARARGS},
#endif /* USE_UNICODE_WCHAR_CACHE */
{"_test_thread_state", test_thread_state, METH_VARARGS},
{"_pending_threadfunc", pending_threadfunc, METH_VARARGS},
#ifdef HAVE_GETTIMEOFDAY

17
Modules/_winapi.c
View File

@ -164,10 +164,11 @@ create_converter('LPCVOID', '" F_POINTER "')
create_converter('BOOL', 'i') # F_BOOL used previously (always 'i')
create_converter('DWORD', 'k') # F_DWORD is always "k" (which is much shorter)
create_converter('LPCTSTR', 's')
create_converter('LPCWSTR', 'u')
create_converter('LPWSTR', 'u')
create_converter('UINT', 'I') # F_UINT used previously (always 'I')
class LPCWSTR_converter(Py_UNICODE_converter):
type = 'LPCWSTR'
class HANDLE_return_converter(CReturnConverter):
type = 'HANDLE'
@ -197,7 +198,7 @@ class LPVOID_return_converter(CReturnConverter):
data.return_conversion.append(
'return_value = HANDLE_TO_PYNUM(_return_value);\n')
[python start generated code]*/
/*[python end generated code: output=da39a3ee5e6b4b0d input=79464c61a31ae932]*/
/*[python end generated code: output=da39a3ee5e6b4b0d input=011ee0c3a2244bfe]*/
#include "clinic/_winapi.c.h"
@ -520,15 +521,15 @@ _winapi_CreateFileMapping_impl(PyObject *module, HANDLE file_handle,
/*[clinic input]
_winapi.CreateJunction
src_path: LPWSTR
dst_path: LPWSTR
src_path: LPCWSTR
dst_path: LPCWSTR
/
[clinic start generated code]*/
static PyObject *
_winapi_CreateJunction_impl(PyObject *module, LPWSTR src_path,
LPWSTR dst_path)
/*[clinic end generated code: output=66b7eb746e1dfa25 input=8cd1f9964b6e3d36]*/
_winapi_CreateJunction_impl(PyObject *module, LPCWSTR src_path,
LPCWSTR dst_path)
/*[clinic end generated code: output=44b3f5e9bbcc4271 input=963d29b44b9384a7]*/
{
/* Privilege adjustment */
HANDLE token = NULL;

64
Modules/clinic/_winapi.c.h generated
View File

@ -195,8 +195,8 @@ _winapi_CreateFileMapping(PyObject *module, PyObject *const *args, Py_ssize_t na
LPCWSTR name;
HANDLE _return_value;
if (!_PyArg_ParseStack(args, nargs, "" F_HANDLE "" F_POINTER "kkku:CreateFileMapping",
&file_handle, &security_attributes, &protect, &max_size_high, &max_size_low, &name)) {
if (!_PyArg_ParseStack(args, nargs, "" F_HANDLE "" F_POINTER "kkkO&:CreateFileMapping",
&file_handle, &security_attributes, &protect, &max_size_high, &max_size_low, _PyUnicode_WideCharString_Converter, &name)) {
goto exit;
}
_return_value = _winapi_CreateFileMapping_impl(module, file_handle, security_attributes, protect, max_size_high, max_size_low, name);
@ -209,6 +209,11 @@ _winapi_CreateFileMapping(PyObject *module, PyObject *const *args, Py_ssize_t na
return_value = HANDLE_TO_PYNUM(_return_value);
exit:
/* Cleanup for name */
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free((void *)name);
#endif /* USE_UNICODE_WCHAR_CACHE */
return return_value;
}
@ -221,23 +226,55 @@ PyDoc_STRVAR(_winapi_CreateJunction__doc__,
{"CreateJunction", (PyCFunction)(void(*)(void))_winapi_CreateJunction, METH_FASTCALL, _winapi_CreateJunction__doc__},
static PyObject *
_winapi_CreateJunction_impl(PyObject *module, LPWSTR src_path,
LPWSTR dst_path);
_winapi_CreateJunction_impl(PyObject *module, LPCWSTR src_path,
LPCWSTR dst_path);
static PyObject *
_winapi_CreateJunction(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
{
PyObject *return_value = NULL;
LPWSTR src_path;
LPWSTR dst_path;
LPCWSTR src_path;
LPCWSTR dst_path;
if (!_PyArg_ParseStack(args, nargs, "uu:CreateJunction",
&src_path, &dst_path)) {
if (!_PyArg_CheckPositional("CreateJunction", nargs, 2, 2)) {
goto exit;
}
if (!PyUnicode_Check(args[0])) {
_PyArg_BadArgument("CreateJunction", "argument 1", "str", args[0]);
goto exit;
}
#if USE_UNICODE_WCHAR_CACHE
src_path = _PyUnicode_AsUnicode(args[0]);
#else /* USE_UNICODE_WCHAR_CACHE */
src_path = PyUnicode_AsWideCharString(args[0], NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (src_path == NULL) {
goto exit;
}
if (!PyUnicode_Check(args[1])) {
_PyArg_BadArgument("CreateJunction", "argument 2", "str", args[1]);
goto exit;
}
#if USE_UNICODE_WCHAR_CACHE
dst_path = _PyUnicode_AsUnicode(args[1]);
#else /* USE_UNICODE_WCHAR_CACHE */
dst_path = PyUnicode_AsWideCharString(args[1], NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (dst_path == NULL) {
goto exit;
}
return_value = _winapi_CreateJunction_impl(module, src_path, dst_path);
exit:
/* Cleanup for src_path */
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free((void *)src_path);
#endif /* USE_UNICODE_WCHAR_CACHE */
/* Cleanup for dst_path */
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free((void *)dst_path);
#endif /* USE_UNICODE_WCHAR_CACHE */
return return_value;
}
@ -715,8 +752,8 @@ _winapi_OpenFileMapping(PyObject *module, PyObject *const *args, Py_ssize_t narg
LPCWSTR name;
HANDLE _return_value;
if (!_PyArg_ParseStack(args, nargs, "kiu:OpenFileMapping",
&desired_access, &inherit_handle, &name)) {
if (!_PyArg_ParseStack(args, nargs, "kiO&:OpenFileMapping",
&desired_access, &inherit_handle, _PyUnicode_WideCharString_Converter, &name)) {
goto exit;
}
_return_value = _winapi_OpenFileMapping_impl(module, desired_access, inherit_handle, name);
@ -729,6 +766,11 @@ _winapi_OpenFileMapping(PyObject *module, PyObject *const *args, Py_ssize_t narg
return_value = HANDLE_TO_PYNUM(_return_value);
exit:
/* Cleanup for name */
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free((void *)name);
#endif /* USE_UNICODE_WCHAR_CACHE */
return return_value;
}
@ -1106,4 +1148,4 @@ _winapi_GetFileType(PyObject *module, PyObject *const *args, Py_ssize_t nargs, P
exit:
return return_value;
}
/*[clinic end generated code: output=db87076a32fa7abe input=a9049054013a1b77]*/
/*[clinic end generated code: output=1f10e03f64ff9777 input=a9049054013a1b77]*/

52
Modules/overlapped.c
View File

@ -1291,6 +1291,7 @@ _overlapped_Overlapped_AcceptEx_impl(OverlappedObject *self,
static int
parse_address(PyObject *obj, SOCKADDR *Address, int Length)
{
PyObject *Host_obj;
Py_UNICODE *Host;
unsigned short Port;
unsigned long FlowInfo;
@ -1298,34 +1299,67 @@ parse_address(PyObject *obj, SOCKADDR *Address, int Length)
memset(Address, 0, Length);
if (PyArg_ParseTuple(obj, "uH", &Host, &Port))
{
switch (PyTuple_GET_SIZE(obj)) {
case 2: {
if (!PyArg_ParseTuple(obj, "UH", &Host_obj, &Port)) {
return -1;
}
#if USE_UNICODE_WCHAR_CACHE
Host = (wchar_t *)_PyUnicode_AsUnicode(Host_obj);
#else /* USE_UNICODE_WCHAR_CACHE */
Host = PyUnicode_AsWideCharString(Host_obj, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (Host == NULL) {
return -1;
}
Address->sa_family = AF_INET;
if (WSAStringToAddressW(Host, AF_INET, NULL, Address, &Length) < 0) {
SetFromWindowsErr(WSAGetLastError());
return -1;
Length = -1;
}
else {
((SOCKADDR_IN*)Address)->sin_port = htons(Port);
}
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(Host);
#endif /* USE_UNICODE_WCHAR_CACHE */
return Length;
}
else if (PyArg_ParseTuple(obj,
"uHkk;ConnectEx(): illegal address_as_bytes "
"argument", &Host, &Port, &FlowInfo, &ScopeId))
case 4: {
if (!PyArg_ParseTuple(obj,
"UHkk;ConnectEx(): illegal address_as_bytes argument",
&Host_obj, &Port, &FlowInfo, &ScopeId))
{
PyErr_Clear();
return -1;
}
#if USE_UNICODE_WCHAR_CACHE
Host = (wchar_t *)_PyUnicode_AsUnicode(Host_obj);
#else /* USE_UNICODE_WCHAR_CACHE */
Host = PyUnicode_AsWideCharString(Host_obj, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (Host == NULL) {
return -1;
}
Address->sa_family = AF_INET6;
if (WSAStringToAddressW(Host, AF_INET6, NULL, Address, &Length) < 0) {
SetFromWindowsErr(WSAGetLastError());
return -1;
Length = -1;
}
else {
((SOCKADDR_IN6*)Address)->sin6_port = htons(Port);
((SOCKADDR_IN6*)Address)->sin6_flowinfo = FlowInfo;
((SOCKADDR_IN6*)Address)->sin6_scope_id = ScopeId;
}
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(Host);
#endif /* USE_UNICODE_WCHAR_CACHE */
return Length;
}
default:
PyErr_SetString(PyExc_ValueError, "illegal address_as_bytes argument");
return -1;
}
}
/*[clinic input]
_overlapped.Overlapped.ConnectEx

70
Modules/posixmodule.c
View File

@ -988,6 +988,11 @@ typedef struct {
static void
path_cleanup(path_t *path)
{
#if !USE_UNICODE_WCHAR_CACHE
wchar_t *wide = (wchar_t *)path->wide;
path->wide = NULL;
PyMem_Free(wide);
#endif /* USE_UNICODE_WCHAR_CACHE */
Py_CLEAR(path->object);
Py_CLEAR(path->cleanup);
}
@ -1002,7 +1007,7 @@ path_converter(PyObject *o, void *p)
const char *narrow;
#ifdef MS_WINDOWS
PyObject *wo = NULL;
const wchar_t *wide;
wchar_t *wide = NULL;
#endif
#define FORMAT_EXCEPTION(exc, fmt) \
@ -1075,7 +1080,14 @@ path_converter(PyObject *o, void *p)
if (is_unicode) {
#ifdef MS_WINDOWS
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
wide = PyUnicode_AsUnicodeAndSize(o, &length);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
wide = PyUnicode_AsWideCharString(o, &length);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (!wide) {
goto error_exit;
}
@ -1091,6 +1103,9 @@ path_converter(PyObject *o, void *p)
path->wide = wide;
path->narrow = FALSE;
path->fd = -1;
#if !USE_UNICODE_WCHAR_CACHE
wide = NULL;
#endif /* USE_UNICODE_WCHAR_CACHE */
goto success_exit;
#else
if (!PyUnicode_FSConverter(o, &bytes)) {
@ -1166,7 +1181,15 @@ path_converter(PyObject *o, void *p)
goto error_exit;
}
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
wide = PyUnicode_AsUnicodeAndSize(wo, &length);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
wide = PyUnicode_AsWideCharString(wo, &length);
Py_DECREF(wo);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (!wide) {
goto error_exit;
}
@ -1180,8 +1203,12 @@ path_converter(PyObject *o, void *p)
}
path->wide = wide;
path->narrow = TRUE;
path->cleanup = wo;
Py_DECREF(bytes);
#if USE_UNICODE_WCHAR_CACHE
path->cleanup = wo;
#else /* USE_UNICODE_WCHAR_CACHE */
wide = NULL;
#endif /* USE_UNICODE_WCHAR_CACHE */
#else
path->wide = NULL;
path->narrow = narrow;
@ -1205,7 +1232,11 @@ path_converter(PyObject *o, void *p)
Py_XDECREF(o);
Py_XDECREF(bytes);
#ifdef MS_WINDOWS
#if USE_UNICODE_WCHAR_CACHE
Py_XDECREF(wo);
#else /* USE_UNICODE_WCHAR_CACHE */
PyMem_Free(wide);
#endif /* USE_UNICODE_WCHAR_CACHE */
#endif
return 0;
}
@ -12824,7 +12855,15 @@ DirEntry_fetch_stat(PyObject *module, DirEntry *self, int follow_symlinks)
#ifdef MS_WINDOWS
if (!PyUnicode_FSDecoder(self->path, &ub))
return NULL;
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
const wchar_t *path = PyUnicode_AsUnicode(ub);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *path = PyUnicode_AsWideCharString(ub, NULL);
Py_DECREF(ub);
#endif /* USE_UNICODE_WCHAR_CACHE */
#else /* POSIX */
if (!PyUnicode_FSConverter(self->path, &ub))
return NULL;
@ -12834,6 +12873,7 @@ DirEntry_fetch_stat(PyObject *module, DirEntry *self, int follow_symlinks)
result = fstatat(self->dir_fd, path, &st,
follow_symlinks ? 0 : AT_SYMLINK_NOFOLLOW);
#else
Py_DECREF(ub);
PyErr_SetString(PyExc_NotImplementedError, "can't fetch stat");
return NULL;
#endif /* HAVE_FSTATAT */
@ -12846,7 +12886,11 @@ DirEntry_fetch_stat(PyObject *module, DirEntry *self, int follow_symlinks)
else
result = LSTAT(path, &st);
}
#if defined(MS_WINDOWS) && !USE_UNICODE_WCHAR_CACHE
PyMem_Free(path);
#else /* USE_UNICODE_WCHAR_CACHE */
Py_DECREF(ub);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (result != 0)
return path_object_error(self->path);
@ -13035,15 +13079,24 @@ os_DirEntry_inode_impl(DirEntry *self)
#ifdef MS_WINDOWS
if (!self->got_file_index) {
PyObject *unicode;
const wchar_t *path;
STRUCT_STAT stat;
int result;
if (!PyUnicode_FSDecoder(self->path, &unicode))
return NULL;
path = PyUnicode_AsUnicode(unicode);
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
const wchar_t *path = PyUnicode_AsUnicode(unicode);
result = LSTAT(path, &stat);
Py_DECREF(unicode);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *path = PyUnicode_AsWideCharString(unicode, NULL);
Py_DECREF(unicode);
result = LSTAT(path, &stat);
PyMem_Free(path);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (result != 0)
return path_object_error(self->path);
@ -13597,10 +13650,9 @@ os_scandir_impl(PyObject *module, path_t *path)
iterator->dirp = NULL;
#endif
memcpy(&iterator->path, path, sizeof(path_t));
/* Move the ownership to iterator->path */
path->object = NULL;
path->cleanup = NULL;
memcpy(&iterator->path, path, sizeof(path_t));
memset(path, 0, sizeof(path_t));
#ifdef MS_WINDOWS
iterator->first_time = 1;
@ -13622,9 +13674,9 @@ os_scandir_impl(PyObject *module, path_t *path)
#else /* POSIX */
errno = 0;
#ifdef HAVE_FDOPENDIR
if (path->fd != -1) {
if (iterator->path.fd != -1) {
/* closedir() closes the FD, so we duplicate it */
fd = _Py_dup(path->fd);
fd = _Py_dup(iterator->path.fd);
if (fd == -1)
goto error;

81
Objects/unicodeobject.c
View File

@ -3150,9 +3150,11 @@ unicode_get_widechar_size(PyObject *unicode)
assert(unicode != NULL);
assert(_PyUnicode_CHECK(unicode));
#if USE_UNICODE_WCHAR_CACHE
if (_PyUnicode_WSTR(unicode) != NULL) {
return PyUnicode_WSTR_LENGTH(unicode);
}
#endif /* USE_UNICODE_WCHAR_CACHE */
assert(PyUnicode_IS_READY(unicode));
res = _PyUnicode_LENGTH(unicode);
@ -3173,16 +3175,21 @@ unicode_get_widechar_size(PyObject *unicode)
static void
unicode_copy_as_widechar(PyObject *unicode, wchar_t *w, Py_ssize_t size)
{
const wchar_t *wstr;
assert(unicode != NULL);
assert(_PyUnicode_CHECK(unicode));
wstr = _PyUnicode_WSTR(unicode);
#if USE_UNICODE_WCHAR_CACHE
const wchar_t *wstr = _PyUnicode_WSTR(unicode);
if (wstr != NULL) {
memcpy(w, wstr, size * sizeof(wchar_t));
return;
}
#else /* USE_UNICODE_WCHAR_CACHE */
if (PyUnicode_KIND(unicode) == sizeof(wchar_t)) {
memcpy(w, PyUnicode_DATA(unicode), size * sizeof(wchar_t));
return;
}
#endif /* USE_UNICODE_WCHAR_CACHE */
assert(PyUnicode_IS_READY(unicode));
if (PyUnicode_KIND(unicode) == PyUnicode_1BYTE_KIND) {
@ -4378,7 +4385,6 @@ unicode_decode_call_errorhandler_wchar(
Py_ssize_t requiredsize;
Py_ssize_t newpos;
PyObject *inputobj = NULL;
wchar_t *repwstr;
Py_ssize_t repwlen;
if (*errorHandler == NULL) {
@ -4424,9 +4430,19 @@ unicode_decode_call_errorhandler_wchar(
goto onError;
}
repwstr = PyUnicode_AsUnicodeAndSize(repunicode, &repwlen);
if (repwstr == NULL)
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
repwlen = PyUnicode_GetSize(repunicode);
if (repwlen < 0)
goto onError;
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
repwlen = PyUnicode_AsWideChar(repunicode, NULL, 0);
if (repwlen < 0)
goto onError;
repwlen--;
#endif /* USE_UNICODE_WCHAR_CACHE */
/* need more space? (at least enough for what we
have+the replacement+the rest of the string (starting
at the new input position), so we won't have to check space
@ -4446,7 +4462,7 @@ unicode_decode_call_errorhandler_wchar(
goto onError;
}
}
wcsncpy(*buf + *outpos, repwstr, repwlen);
PyUnicode_AsWideChar(repunicode, *buf + *outpos, repwlen);
*outpos += repwlen;
*endinpos = newpos;
*inptr = *input + newpos;
@ -7748,6 +7764,7 @@ encode_code_page_strict(UINT code_page, PyObject **outbytes,
/* Create a substring so that we can get the UTF-16 representation
of just the slice under consideration. */
PyObject *substring;
int ret = -1;
assert(len > 0);
@ -7759,11 +7776,22 @@ encode_code_page_strict(UINT code_page, PyObject **outbytes,
substring = PyUnicode_Substring(unicode, offset, offset+len);
if (substring == NULL)
return -1;
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
p = PyUnicode_AsUnicodeAndSize(substring, &size);
if (p == NULL) {
Py_DECREF(substring);
return -1;
}
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
p = PyUnicode_AsWideCharString(substring, &size);
Py_CLEAR(substring);
if (p == NULL) {
return -1;
}
#endif /* USE_UNICODE_WCHAR_CACHE */
assert(size <= INT_MAX);
/* First get the size of the result */
@ -7775,16 +7803,15 @@ encode_code_page_strict(UINT code_page, PyObject **outbytes,
goto error;
/* If we used a default char, then we failed! */
if (pusedDefaultChar && *pusedDefaultChar) {
Py_DECREF(substring);
return -2;
ret = -2;
goto done;
}
if (*outbytes == NULL) {
/* Create string object */
*outbytes = PyBytes_FromStringAndSize(NULL, outsize);
if (*outbytes == NULL) {
Py_DECREF(substring);
return -1;
goto done;
}
out = PyBytes_AS_STRING(*outbytes);
}
@ -7793,12 +7820,10 @@ encode_code_page_strict(UINT code_page, PyObject **outbytes,
const Py_ssize_t n = PyBytes_Size(*outbytes);
if (outsize > PY_SSIZE_T_MAX - n) {
PyErr_NoMemory();
Py_DECREF(substring);
return -1;
goto done;
}
if (_PyBytes_Resize(outbytes, n + outsize) < 0) {
Py_DECREF(substring);
return -1;
goto done;
}
out = PyBytes_AS_STRING(*outbytes) + n;
}
@ -7808,19 +7833,29 @@ encode_code_page_strict(UINT code_page, PyObject **outbytes,
p, (int)size,
out, outsize,
NULL, pusedDefaultChar);
Py_CLEAR(substring);
if (outsize <= 0)
goto error;
if (pusedDefaultChar && *pusedDefaultChar)
return -2;
return 0;
if (pusedDefaultChar && *pusedDefaultChar) {
ret = -2;
goto done;
}
ret = 0;
done:
#if USE_UNICODE_WCHAR_CACHE
Py_DECREF(substring);
#else /* USE_UNICODE_WCHAR_CACHE */
PyMem_Free(p);
#endif /* USE_UNICODE_WCHAR_CACHE */
return ret;
error:
Py_XDECREF(substring);
if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION)
return -2;
if (GetLastError() == ERROR_NO_UNICODE_TRANSLATION) {
ret = -2;
goto done;
}
PyErr_SetFromWindowsErr(0);
return -1;
goto done;
}
/*

14
PC/clinic/winreg.c.h generated
View File

@ -1143,8 +1143,7 @@ PyDoc_STRVAR(winreg_SetValue__doc__,
static PyObject *
winreg_SetValue_impl(PyObject *module, HKEY key, const Py_UNICODE *sub_key,
DWORD type, const Py_UNICODE *value,
Py_ssize_clean_t value_length);
DWORD type, PyObject *value_obj);
static PyObject *
winreg_SetValue(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
@ -1153,14 +1152,13 @@ winreg_SetValue(PyObject *module, PyObject *const *args, Py_ssize_t nargs)
HKEY key;
const Py_UNICODE *sub_key;
DWORD type;
const Py_UNICODE *value;
Py_ssize_clean_t value_length;
PyObject *value_obj;
if (!_PyArg_ParseStack(args, nargs, "O&O&ku#:SetValue",
clinic_HKEY_converter, &key, _PyUnicode_WideCharString_Opt_Converter, &sub_key, &type, &value, &value_length)) {
if (!_PyArg_ParseStack(args, nargs, "O&O&kU:SetValue",
clinic_HKEY_converter, &key, _PyUnicode_WideCharString_Opt_Converter, &sub_key, &type, &value_obj)) {
goto exit;
}
return_value = winreg_SetValue_impl(module, key, sub_key, type, value, value_length);
return_value = winreg_SetValue_impl(module, key, sub_key, type, value_obj);
exit:
/* Cleanup for sub_key */
@ -1348,4 +1346,4 @@ winreg_QueryReflectionKey(PyObject *module, PyObject *arg)
exit:
return return_value;
}
/*[clinic end generated code: output=30b1311886c13907 input=a9049054013a1b77]*/
/*[clinic end generated code: output=497a2e804821d5c9 input=a9049054013a1b77]*/

61
PC/winreg.c
View File

@ -640,16 +640,25 @@ Py2Reg(PyObject *value, DWORD typ, BYTE **retDataBuf, DWORD *retDataSize)
for (j = 0; j < i; j++)
{
PyObject *t;
wchar_t *wstr;
Py_ssize_t len;
t = PyList_GET_ITEM(value, j);
if (!PyUnicode_Check(t))
return FALSE;
wstr = PyUnicode_AsUnicodeAndSize(t, &len);
if (wstr == NULL)
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
len = PyUnicode_GetSize(t);
if (len < 0)
return FALSE;
size += Py_SAFE_DOWNCAST((len + 1) * sizeof(wchar_t),
len++;
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
len = PyUnicode_AsWideChar(t, NULL, 0);
if (len < 0)
return FALSE;
#endif /* USE_UNICODE_WCHAR_CACHE */
size += Py_SAFE_DOWNCAST(len * sizeof(wchar_t),
size_t, DWORD);
}
@ -665,17 +674,18 @@ Py2Reg(PyObject *value, DWORD typ, BYTE **retDataBuf, DWORD *retDataSize)
for (j = 0; j < i; j++)
{
PyObject *t;
wchar_t *wstr;
Py_ssize_t len;
t = PyList_GET_ITEM(value, j);
wstr = PyUnicode_AsUnicodeAndSize(t, &len);
assert(wstr);
wcscpy(P, wstr);
P += (len + 1);
assert(size > 0);
len = PyUnicode_AsWideChar(t, P, size);
assert(len >= 0);
assert(len < size);
size -= (DWORD)len + 1;
P += len + 1;
}
/* And doubly-terminate the list... */
*P = '\0';
*P = L'\0';
break;
}
case REG_BINARY:
@ -1669,7 +1679,7 @@ winreg.SetValue
type: DWORD
An integer that specifies the type of the data. Currently this must
be REG_SZ, meaning only strings are supported.
value: Py_UNICODE(zeroes=True)
value as value_obj: unicode
A string that specifies the new value.
/
@ -1688,30 +1698,51 @@ KEY_SET_VALUE access.
static PyObject *
winreg_SetValue_impl(PyObject *module, HKEY key, const Py_UNICODE *sub_key,
DWORD type, const Py_UNICODE *value,
Py_ssize_clean_t value_length)
/*[clinic end generated code: output=686bedb1cbb4367b input=2cd2adab79339c53]*/
DWORD type, PyObject *value_obj)
/*[clinic end generated code: output=d4773dc9c372311a input=bf088494ae2d24fd]*/
{
Py_ssize_t value_length;
long rc;
if (type != REG_SZ) {
PyErr_SetString(PyExc_TypeError, "type must be winreg.REG_SZ");
return NULL;
}
if ((size_t)value_length >= PY_DWORD_MAX) {
#if USE_UNICODE_WCHAR_CACHE
_Py_COMP_DIAG_PUSH
_Py_COMP_DIAG_IGNORE_DEPR_DECLS
const wchar_t *value = PyUnicode_AsUnicodeAndSize(value_obj, &value_length);
_Py_COMP_DIAG_POP
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *value = PyUnicode_AsWideCharString(value_obj, &value_length);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (value == NULL) {
return NULL;
}
if ((Py_ssize_t)(DWORD)value_length != value_length) {
PyErr_SetString(PyExc_OverflowError, "value is too long");
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(value);
#endif /* USE_UNICODE_WCHAR_CACHE */
return NULL;
}
if (PySys_Audit("winreg.SetValue", "nunu#",
(Py_ssize_t)key, sub_key, (Py_ssize_t)type,
value, value_length) < 0) {
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(value);
#endif /* USE_UNICODE_WCHAR_CACHE */
return NULL;
}
Py_BEGIN_ALLOW_THREADS
rc = RegSetValueW(key, sub_key, REG_SZ, value, (DWORD)(value_length + 1));
Py_END_ALLOW_THREADS
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(value);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (rc != ERROR_SUCCESS)
return PyErr_SetFromWindowsErrWithFunction(rc, "RegSetValue");
Py_RETURN_NONE;

10
Python/dynload_win.c
View File

@ -166,11 +166,14 @@ dl_funcptr _PyImport_FindSharedFuncptrWindows(const char *prefix,
{
dl_funcptr p;
char funcname[258], *import_python;
const wchar_t *wpathname;
_Py_CheckPython3();
wpathname = _PyUnicode_AsUnicode(pathname);
#if USE_UNICODE_WCHAR_CACHE
const wchar_t *wpathname = _PyUnicode_AsUnicode(pathname);
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *wpathname = PyUnicode_AsWideCharString(pathname, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (wpathname == NULL)
return NULL;
@ -192,6 +195,9 @@ dl_funcptr _PyImport_FindSharedFuncptrWindows(const char *prefix,
LOAD_LIBRARY_SEARCH_DEFAULT_DIRS |
LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR);
Py_END_ALLOW_THREADS
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(wpathname);
#endif /* USE_UNICODE_WCHAR_CACHE */
/* restore old error mode settings */
SetErrorMode(old_mode);

23
Python/fileutils.c
View File

@ -1008,15 +1008,21 @@ _Py_stat(PyObject *path, struct stat *statbuf)
#ifdef MS_WINDOWS
int err;
struct _stat wstatbuf;
const wchar_t *wpath;
wpath = _PyUnicode_AsUnicode(path);
#if USE_UNICODE_WCHAR_CACHE
const wchar_t *wpath = _PyUnicode_AsUnicode(path);
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *wpath = PyUnicode_AsWideCharString(path, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (wpath == NULL)
return -2;
err = _wstat(wpath, &wstatbuf);
if (!err)
statbuf->st_mode = wstatbuf.st_mode;
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(wpath);
#endif /* USE_UNICODE_WCHAR_CACHE */
return err;
#else
int ret;
@ -1433,7 +1439,6 @@ _Py_fopen_obj(PyObject *path, const char *mode)
FILE *f;
int async_err = 0;
#ifdef MS_WINDOWS
const wchar_t *wpath;
wchar_t wmode[10];
int usize;
@ -1448,7 +1453,11 @@ _Py_fopen_obj(PyObject *path, const char *mode)
Py_TYPE(path));
return NULL;
}
wpath = _PyUnicode_AsUnicode(path);
#if USE_UNICODE_WCHAR_CACHE
const wchar_t *wpath = _PyUnicode_AsUnicode(path);
#else /* USE_UNICODE_WCHAR_CACHE */
wchar_t *wpath = PyUnicode_AsWideCharString(path, NULL);
#endif /* USE_UNICODE_WCHAR_CACHE */
if (wpath == NULL)
return NULL;
@ -1456,6 +1465,9 @@ _Py_fopen_obj(PyObject *path, const char *mode)
wmode, Py_ARRAY_LENGTH(wmode));
if (usize == 0) {
PyErr_SetFromWindowsErr(0);
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(wpath);
#endif /* USE_UNICODE_WCHAR_CACHE */
return NULL;
}
@ -1465,6 +1477,9 @@ _Py_fopen_obj(PyObject *path, const char *mode)
Py_END_ALLOW_THREADS
} while (f == NULL
&& errno == EINTR && !(async_err = PyErr_CheckSignals()));
#if !USE_UNICODE_WCHAR_CACHE
PyMem_Free(wpath);
#endif /* USE_UNICODE_WCHAR_CACHE */
#else
PyObject *bytes;
const char *path_bytes;