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bpo-36301: Cleanup preconfig.c and coreconfig.c (GH-12563)
* _PyCoreConfig_Write() now updates _PyRuntime.preconfig * Remove _PyPreCmdline_Copy() * _PyPreCmdline_Read() now accepts _PyPreConfig and _PyCoreConfig optional configurations. * Rename _PyPreConfig_ReadFromArgv() to _PyPreConfig_Read(). Simplify the code. * Calling _PyCoreConfig_Read() no longer adds the warning options twice: don't add a warning option if it's already in the list. * Rename _PyCoreConfig_ReadFromArgv() to _PyCoreConfig_Read(). * Rename config_from_cmdline() to _PyCoreConfig_ReadFromArgv(). * Add more assertions on _PyCoreConfig in _PyCoreConfig_Read(). * Move some functions. * Make some config functions private.
1 parent 414b1cd commit f8ba6f5

9 files changed

Lines changed: 622 additions & 659 deletions

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‎Include/cpython/pylifecycle.h‎

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -21,8 +21,8 @@ PyAPI_FUNC(_PyInitError) _Py_PreInitializeFromConfig(
2121
const _PyCoreConfig *coreconfig);
2222

2323
PyAPI_FUNC(_PyInitError) _Py_InitializeCore(
24-
PyInterpreterState **interp,
25-
const _PyCoreConfig *);
24+
const _PyCoreConfig *config,
25+
PyInterpreterState **interp);
2626
PyAPI_FUNC(int) _Py_IsCoreInitialized(void);
2727

2828

‎Include/internal/pycore_coreconfig.h‎

Lines changed: 16 additions & 28 deletions
Original file line numberDiff line numberDiff line change
@@ -14,8 +14,8 @@ extern "C" {
1414
typedef struct {
1515
_PyWstrList argv;
1616
_PyWstrList xoptions; /* "-X value" option */
17-
int use_environment; /* -E option */
1817
int isolated; /* -I option */
18+
int use_environment; /* -E option */
1919
int dev_mode; /* -X dev and PYTHONDEVMODE */
2020
} _PyPreCmdline;
2121

@@ -27,23 +27,14 @@ typedef struct {
2727
/* Note: _PyPreCmdline_INIT sets other fields to 0/NULL */
2828

2929
PyAPI_FUNC(void) _PyPreCmdline_Clear(_PyPreCmdline *cmdline);
30-
PyAPI_FUNC(int) _PyPreCmdline_Copy(_PyPreCmdline *cmdline,
31-
const _PyPreCmdline *cmdline2);
3230
PyAPI_FUNC(_PyInitError) _PyPreCmdline_SetArgv(_PyPreCmdline *cmdline,
3331
const _PyArgv *args);
34-
PyAPI_FUNC(void) _PyPreCmdline_GetPreConfig(
35-
_PyPreCmdline *cmdline,
36-
const _PyPreConfig *config);
37-
PyAPI_FUNC(void) _PyPreCmdline_SetPreConfig(
38-
const _PyPreCmdline *cmdline,
39-
_PyPreConfig *config);
40-
PyAPI_FUNC(void) _PyPreCmdline_GetCoreConfig(
41-
_PyPreCmdline *cmdline,
42-
const _PyCoreConfig *config);
43-
PyAPI_FUNC(void) _PyPreCmdline_SetCoreConfig(
32+
PyAPI_FUNC(int) _PyPreCmdline_SetCoreConfig(
4433
const _PyPreCmdline *cmdline,
4534
_PyCoreConfig *config);
46-
PyAPI_FUNC(_PyInitError) _PyPreCmdline_Read(_PyPreCmdline *cmdline);
35+
PyAPI_FUNC(_PyInitError) _PyPreCmdline_Read(_PyPreCmdline *cmdline,
36+
const _PyPreConfig *preconfig,
37+
const _PyCoreConfig *coreconfig);
4738

4839

4940
/* --- _PyWstrList ------------------------------------------------ */
@@ -57,6 +48,8 @@ PyAPI_FUNC(int) _PyWstrList_Copy(_PyWstrList *list,
5748
PyAPI_FUNC(int) _PyWstrList_Append(_PyWstrList *list,
5849
const wchar_t *item);
5950
PyAPI_FUNC(PyObject*) _PyWstrList_AsList(const _PyWstrList *list);
51+
PyAPI_FUNC(int) _PyWstrList_Extend(_PyWstrList *list,
52+
const _PyWstrList *list2);
6053

6154

6255
/* --- _PyArgv ---------------------------------------------------- */
@@ -70,7 +63,7 @@ PyAPI_FUNC(_PyInitError) _PyArgv_AsWstrList(const _PyArgv *args,
7063
PyAPI_FUNC(void) _Py_ClearArgcArgv(void);
7164

7265

73-
/* --- _PyPreConfig ----------------------------------------------- */
66+
/* --- Helper functions ------------------------------------------- */
7467

7568
PyAPI_FUNC(int) _Py_str_to_int(
7669
const char *str,
@@ -81,22 +74,20 @@ PyAPI_FUNC(const wchar_t*) _Py_get_xoption(
8174
PyAPI_FUNC(const char*) _Py_GetEnv(
8275
int use_environment,
8376
const char *name);
84-
85-
PyAPI_FUNC(void) _PyPreConfig_Clear(_PyPreConfig *config);
86-
PyAPI_FUNC(int) _PyPreConfig_Copy(_PyPreConfig *config,
87-
const _PyPreConfig *config2);
88-
PyAPI_FUNC(void) _PyPreConfig_GetGlobalConfig(_PyPreConfig *config);
89-
PyAPI_FUNC(void) _PyPreConfig_SetGlobalConfig(const _PyPreConfig *config);
9077
PyAPI_FUNC(void) _Py_get_env_flag(
9178
int use_environment,
9279
int *flag,
9380
const char *name);
81+
82+
/* --- _PyPreConfig ----------------------------------------------- */
83+
84+
PyAPI_FUNC(void) _PyPreConfig_Clear(_PyPreConfig *config);
85+
PyAPI_FUNC(int) _PyPreConfig_Copy(_PyPreConfig *config,
86+
const _PyPreConfig *config2);
87+
PyAPI_FUNC(PyObject*) _PyPreConfig_AsDict(const _PyPreConfig *config);
9488
PyAPI_FUNC(_PyInitError) _PyPreConfig_Read(_PyPreConfig *config,
9589
const _PyArgv *args,
9690
const _PyCoreConfig *coreconfig);
97-
PyAPI_FUNC(PyObject*) _PyPreConfig_AsDict(const _PyPreConfig *config);
98-
PyAPI_FUNC(_PyInitError) _PyPreConfig_ReadFromArgv(_PyPreConfig *config,
99-
const _PyArgv *args);
10091
PyAPI_FUNC(_PyInitError) _PyPreConfig_Write(_PyPreConfig *config);
10192

10293

@@ -109,10 +100,7 @@ PyAPI_FUNC(int) _PyCoreConfig_Copy(
109100
PyAPI_FUNC(_PyInitError) _PyCoreConfig_InitPathConfig(_PyCoreConfig *config);
110101
PyAPI_FUNC(_PyInitError) _PyCoreConfig_SetPathConfig(
111102
const _PyCoreConfig *config);
112-
PyAPI_FUNC(void) _PyCoreConfig_GetGlobalConfig(_PyCoreConfig *config);
113-
PyAPI_FUNC(void) _PyCoreConfig_SetGlobalConfig(const _PyCoreConfig *config);
114-
PyAPI_FUNC(_PyInitError) _PyCoreConfig_Read(_PyCoreConfig *config);
115-
PyAPI_FUNC(_PyInitError) _PyCoreConfig_ReadFromArgv(_PyCoreConfig *config,
103+
PyAPI_FUNC(_PyInitError) _PyCoreConfig_Read(_PyCoreConfig *config,
116104
const _PyArgv *args);
117105
PyAPI_FUNC(void) _PyCoreConfig_Write(const _PyCoreConfig *config);
118106

‎Lib/test/test_embed.py‎

Lines changed: 9 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -302,7 +302,7 @@ class InitConfigTests(EmbeddingTestsMixin, unittest.TestCase):
302302
'pycache_prefix': None,
303303
'program_name': './_testembed',
304304
'argv': [""],
305-
'program': None,
305+
'program': '',
306306

307307
'xoptions': [],
308308
'warnoptions': [],
@@ -537,6 +537,7 @@ def test_init_global_config(self):
537537
'program_name': './globalvar',
538538
'site_import': 0,
539539
'bytes_warning': 1,
540+
'warnoptions': ['default::BytesWarning'],
540541
'inspect': 1,
541542
'interactive': 1,
542543
'optimization_level': 2,
@@ -579,7 +580,7 @@ def test_init_from_config(self):
579580
'argv': ['-c', 'pass'],
580581
'program': 'conf_program',
581582
'xoptions': ['core_xoption1=3', 'core_xoption2=', 'core_xoption3'],
582-
'warnoptions': ['default', 'error::ResourceWarning'],
583+
'warnoptions': ['error::ResourceWarning', 'default::BytesWarning'],
583584

584585
'site_import': 0,
585586
'bytes_warning': 1,
@@ -629,14 +630,16 @@ def test_init_env_dev_mode(self):
629630
preconfig = dict(self.INIT_ENV_PRECONFIG,
630631
allocator='debug')
631632
config = dict(self.INIT_ENV_CONFIG,
632-
dev_mode=1)
633+
dev_mode=1,
634+
warnoptions=['default'])
633635
self.check_config("init_env_dev_mode", config, preconfig)
634636

635637
def test_init_env_dev_mode_alloc(self):
636638
preconfig = dict(self.INIT_ENV_PRECONFIG,
637639
allocator='malloc')
638640
config = dict(self.INIT_ENV_CONFIG,
639-
dev_mode=1)
641+
dev_mode=1,
642+
warnoptions=['default'])
640643
self.check_config("init_env_dev_mode_alloc", config, preconfig)
641644

642645
def test_init_dev_mode(self):
@@ -646,14 +649,12 @@ def test_init_dev_mode(self):
646649
config = {
647650
'faulthandler': 1,
648651
'dev_mode': 1,
652+
'warnoptions': ['default'],
649653
}
650654
self.check_config("init_dev_mode", config, preconfig)
651655

652656
def test_init_isolated(self):
653-
preconfig = {
654-
'isolated': 0,
655-
'use_environment': 1,
656-
}
657+
preconfig = {}
657658
config = {
658659
'isolated': 1,
659660
'use_environment': 0,

‎Modules/main.c‎

Lines changed: 7 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -289,7 +289,7 @@ pymain_init_preconfig(const _PyArgv *args)
289289

290290
_PyPreConfig config = _PyPreConfig_INIT;
291291

292-
err = _PyPreConfig_ReadFromArgv(&config, args);
292+
err = _PyPreConfig_Read(&config, args, NULL);
293293
if (_Py_INIT_FAILED(err)) {
294294
goto done;
295295
}
@@ -306,12 +306,12 @@ static _PyInitError
306306
pymain_init_coreconfig(_PyCoreConfig *config, const _PyArgv *args,
307307
PyInterpreterState **interp_p)
308308
{
309-
_PyInitError err = _PyCoreConfig_ReadFromArgv(config, args);
309+
_PyInitError err = _PyCoreConfig_Read(config, args);
310310
if (_Py_INIT_FAILED(err)) {
311311
return err;
312312
}
313313

314-
return _Py_InitializeCore(interp_p, config);
314+
return _Py_InitializeCore(config, interp_p);
315315
}
316316

317317

@@ -359,22 +359,18 @@ pymain_init(const _PyArgv *args, PyInterpreterState **interp_p)
359359
}
360360

361361
_PyCoreConfig config = _PyCoreConfig_INIT;
362-
363362
err = pymain_init_coreconfig(&config, args, interp_p);
363+
_PyCoreConfig_Clear(&config);
364364
if (_Py_INIT_FAILED(err)) {
365-
goto done;
365+
return err;
366366
}
367367

368368
err = pymain_init_python_main(*interp_p);
369369
if (_Py_INIT_FAILED(err)) {
370-
goto done;
370+
return err;
371371
}
372372

373-
err = _Py_INIT_OK();
374-
375-
done:
376-
_PyCoreConfig_Clear(&config);
377-
return err;
373+
return _Py_INIT_OK();
378374
}
379375

380376

‎Programs/_testembed.c‎

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -466,8 +466,7 @@ static int test_init_from_config(void)
466466
config.xoptions.length = Py_ARRAY_LENGTH(xoptions);
467467
config.xoptions.items = xoptions;
468468

469-
static wchar_t* warnoptions[2] = {
470-
L"default",
469+
static wchar_t* warnoptions[1] = {
471470
L"error::ResourceWarning",
472471
};
473472
config.warnoptions.length = Py_ARRAY_LENGTH(warnoptions);

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