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

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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
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 360 additions and 99 deletions
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10
Python/dynload_win.c
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@ -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);