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bpo-36301: Add _PyWstrList structure (GH-12343) 

Replace messy _Py_wstrlist_xxx() functions with a new clean
_PyWstrList structure and new _PyWstrList_xxx() functions.

Changes:

* Add _PyCoreConfig.use_module_search_paths to decide if
  _PyCoreConfig.module_search_paths should be computed or not, to
  support empty search path list.
* _PyWstrList_Clear() sets length to 0 and items to NULL, whereas
  _Py_wstrlist_clear() only freed memory.
* _PyWstrList_Append() returns an int, whereas _Py_wstrlist_append()
  returned _PyInitError.
* _PyWstrList uses Py_ssize_t for the length, instead of int.
* Replace (int, wchar_t**) with _PyWstrList in:

  * _PyPreConfig
  * _PyCoreConfig
  * _PyPreCmdline
  * _PyCmdline

* Replace "int orig_argv; wchar_t **orig_argv;"
  with "_PyWstrList orig_argv".
* _PyCmdline and _PyPreCmdline now also copy wchar_argv.
* Rename _PyArgv_Decode() to _PyArgv_AsWstrList().
* PySys_SetArgvEx() now pass the fixed (argc, argv) to
  _PyPathConfig_ComputeArgv0() (don't pass negative argc or NULL
  argv).
* _PyOS_GetOpt() uses Py_ssize_t
This commit is contained in:
Victor Stinner 2019-03-15 15:08:05 +01:00 committed by GitHub
parent 86082c22d2
commit 74f6568bbd
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
11 changed files with 303 additions and 345 deletions
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42
Include/cpython/coreconfig.h
View File

@ -46,6 +46,18 @@ typedef struct {
#define _Py_INIT_FAILED(err) \
(err.msg != NULL || err.exitcode != -1)
/* --- _PyWstrList ------------------------------------------------ */
typedef struct {
/* If length is greater than zero, items must be non-NULL
and all items strings must be non-NULL */
Py_ssize_t length;
wchar_t **items;
} _PyWstrList;
#define _PyWstrList_INIT (_PyWstrList){.length = 0, .items = NULL}
/* --- _PyPreConfig ----------------------------------------------- */
typedef struct {
@ -162,19 +174,12 @@ typedef struct {
char *filesystem_encoding;
char *filesystem_errors;
wchar_t *pycache_prefix; /* PYTHONPYCACHEPREFIX, -X pycache_prefix=PATH */
wchar_t *program_name; /* Program name, see also Py_GetProgramName() */
int argc; /* Number of command line arguments,
-1 means unset */
wchar_t **argv; /* Command line arguments */
wchar_t *program; /* argv[0] or "" */
int nxoption; /* Number of -X options */
wchar_t **xoptions; /* -X options */
int nwarnoption; /* Number of warnings options */
wchar_t **warnoptions; /* Warnings options */
wchar_t *pycache_prefix; /* PYTHONPYCACHEPREFIX, -X pycache_prefix=PATH */
wchar_t *program_name; /* Program name, see also Py_GetProgramName() */
_PyWstrList argv; /* Command line arguments */
wchar_t *program; /* argv[0] or "" */
_PyWstrList xoptions; /* Command line -X options */
_PyWstrList warnoptions; /* Warnings options */
/* Path configuration inputs */
wchar_t *module_search_path_env; /* PYTHONPATH environment variable */
@ -182,9 +187,11 @@ typedef struct {
see also Py_SetPythonHome(). */
/* Path configuration outputs */
int nmodule_search_path; /* Number of sys.path paths,
-1 means unset */
wchar_t **module_search_paths; /* sys.path paths */
int use_module_search_paths; /* If non-zero, use module_search_paths */
_PyWstrList module_search_paths; /* sys.path paths. Computed if
use_module_search_paths is equal
to zero. */
wchar_t *executable; /* sys.executable */
wchar_t *prefix; /* sys.prefix */
wchar_t *base_prefix; /* sys.base_prefix */
@ -366,8 +373,7 @@ typedef struct {
.use_hash_seed = -1, \
.faulthandler = -1, \
.tracemalloc = -1, \
.argc = -1, \
.nmodule_search_path = -1, \
.use_module_search_paths = 0, \
.site_import = -1, \
.bytes_warning = -1, \
.inspect = -1, \

35
Include/internal/pycore_coreconfig.h
View File

@ -8,39 +8,38 @@ extern "C" {
# error "this header requires Py_BUILD_CORE or Py_BUILD_CORE_BUILTIN defined"
#endif
/* --- _Py_wstrlist ----------------------------------------------- */
PyAPI_FUNC(void) _Py_wstrlist_clear(
int len,
wchar_t **list);
PyAPI_FUNC(wchar_t**) _Py_wstrlist_copy(
int len,
wchar_t * const *list);
PyAPI_FUNC(_PyInitError) _Py_wstrlist_append(
int *len,
wchar_t ***list,
const wchar_t *str);
PyAPI_FUNC(PyObject*) _Py_wstrlist_as_pylist(
int len,
wchar_t **list);
/* --- _PyWstrList ------------------------------------------------ */
#ifndef NDEBUG
PyAPI_FUNC(int) _PyWstrList_CheckConsistency(const _PyWstrList *list);
#endif
PyAPI_FUNC(void) _PyWstrList_Clear(_PyWstrList *list);
PyAPI_FUNC(int) _PyWstrList_Copy(_PyWstrList *list,
const _PyWstrList *list2);
PyAPI_FUNC(int) _PyWstrList_Append(_PyWstrList *list,
const wchar_t *item);
PyAPI_FUNC(PyObject*) _PyWstrList_AsList(const _PyWstrList *list);
/* --- _PyArgv ---------------------------------------------------- */
PyAPI_FUNC(_PyInitError) _PyArgv_Decode(const _PyArgv *args,
wchar_t*** argv_p);
PyAPI_FUNC(_PyInitError) _PyArgv_AsWstrList(const _PyArgv *args,
_PyWstrList *list);
/* --- Py_GetArgcArgv() helpers ----------------------------------- */
PyAPI_FUNC(void) _Py_ClearArgcArgv(void);
/* --- _PyPreConfig ----------------------------------------------- */
PyAPI_FUNC(int) _Py_str_to_int(
const char *str,
int *result);
PyAPI_FUNC(const wchar_t*) _Py_get_xoption(
int nxoption,
wchar_t * const *xoptions,
const _PyWstrList *xoptions,
const wchar_t *name);
PyAPI_FUNC(void) _PyPreConfig_Clear(_PyPreConfig *config);

6
Include/internal/pycore_getopt.h
View File

@ -6,8 +6,8 @@
#endif
extern int _PyOS_opterr;
extern int _PyOS_optind;
extern wchar_t *_PyOS_optarg;
extern Py_ssize_t _PyOS_optind;
extern const wchar_t *_PyOS_optarg;
extern void _PyOS_ResetGetOpt(void);
@ -17,6 +17,6 @@ typedef struct {
int val;
} _PyOS_LongOption;
extern int _PyOS_GetOpt(int argc, wchar_t **argv, int *longindex);
extern int _PyOS_GetOpt(Py_ssize_t argc, wchar_t **argv, int *longindex);
#endif /* !Py_INTERNAL_PYGETOPT_H */

2
Include/internal/pycore_pathconfig.h
View File

@ -44,7 +44,7 @@ PyAPI_FUNC(_PyInitError) _PyPathConfig_SetGlobal(
PyAPI_FUNC(_PyInitError) _PyPathConfig_Calculate_impl(
_PyPathConfig *config,
const _PyCoreConfig *core_config);
PyAPI_FUNC(PyObject*) _PyPathConfig_ComputeArgv0(int argc, wchar_t **argv);
PyAPI_FUNC(PyObject*) _PyPathConfig_ComputeArgv0(const _PyWstrList *argv);
PyAPI_FUNC(int) _Py_FindEnvConfigValue(
FILE *env_file,
const wchar_t *key,

25
Modules/main.c
View File

@ -84,15 +84,15 @@ error:
static PyObject*
mainconfig_create_xoptions_dict(const _PyCoreConfig *config)
{
int nxoption = config->nxoption;
wchar_t **xoptions = config->xoptions;
Py_ssize_t nxoption = config->xoptions.length;
wchar_t * const * xoptions = config->xoptions.items;
PyObject *dict = PyDict_New();
if (dict == NULL) {
return NULL;
}
for (int i=0; i < nxoption; i++) {
wchar_t *option = xoptions[i];
for (Py_ssize_t i=0; i < nxoption; i++) {
const wchar_t *option = xoptions[i];
if (mainconfig_add_xoption(dict, option) < 0) {
Py_DECREF(dict);
return NULL;
@ -243,22 +243,18 @@ _PyMainInterpreterConfig_Read(_PyMainInterpreterConfig *main_config,
} \
} \
} while (0)
#define COPY_WSTRLIST(ATTR, LEN, LIST) \
#define COPY_WSTRLIST(ATTR, LIST) \
do { \
if (ATTR == NULL) { \
ATTR = _Py_wstrlist_as_pylist(LEN, LIST); \
ATTR = _PyWstrList_AsList(LIST); \
if (ATTR == NULL) { \
return _Py_INIT_NO_MEMORY(); \
} \
} \
} while (0)
COPY_WSTRLIST(main_config->warnoptions,
config->nwarnoption, config->warnoptions);
if (config->argc >= 0) {
COPY_WSTRLIST(main_config->argv,
config->argc, config->argv);
}
COPY_WSTRLIST(main_config->warnoptions, &config->warnoptions);
COPY_WSTRLIST(main_config->argv, &config->argv);
if (config->_install_importlib) {
COPY_WSTR(executable);
@ -268,7 +264,7 @@ _PyMainInterpreterConfig_Read(_PyMainInterpreterConfig *main_config,
COPY_WSTR(base_exec_prefix);
COPY_WSTRLIST(main_config->module_search_path,
config->nmodule_search_path, config->module_search_paths);
&config->module_search_paths);
if (config->pycache_prefix != NULL) {
COPY_WSTR(pycache_prefix);
@ -784,8 +780,7 @@ pymain_run_python(PyInterpreterState *interp, int *exitcode)
}
}
else if (!config->preconfig.isolated) {
PyObject *path0 = _PyPathConfig_ComputeArgv0(config->argc,
config->argv);
PyObject *path0 = _PyPathConfig_ComputeArgv0(&config->argv);
if (path0 == NULL) {
err = _Py_INIT_NO_MEMORY();
goto done;

12
Programs/_testembed.c
View File

@ -479,8 +479,8 @@ static int test_init_from_config(void)
L"-c",
L"pass",
};
config.argc = Py_ARRAY_LENGTH(argv);
config.argv = argv;
config.argv.length = Py_ARRAY_LENGTH(argv);
config.argv.items = argv;
config.program = L"conf_program";
@ -489,15 +489,15 @@ static int test_init_from_config(void)
L"core_xoption2=",
L"core_xoption3",
};
config.nxoption = Py_ARRAY_LENGTH(xoptions);
config.xoptions = xoptions;
config.xoptions.length = Py_ARRAY_LENGTH(xoptions);
config.xoptions.items = xoptions;
static wchar_t* warnoptions[2] = {
L"default",
L"error::ResourceWarning",
};
config.nwarnoption = Py_ARRAY_LENGTH(warnoptions);
config.warnoptions = warnoptions;
config.warnoptions.length = Py_ARRAY_LENGTH(warnoptions);
config.warnoptions.items = warnoptions;
/* FIXME: test module_search_path_env */
/* FIXME: test home */

366
Python/coreconfig.c
View File

@ -202,81 +202,128 @@ fail:
}
/* --- _Py_wstrlist ----------------------------------------------- */
/* --- _PyWstrList ------------------------------------------------ */
#ifndef NDEBUG
int
_PyWstrList_CheckConsistency(const _PyWstrList *list)
{
assert(list->length >= 0);
if (list->length != 0) {
assert(list->items != NULL);
}
for (Py_ssize_t i = 0; i < list->length; i++) {
assert(list->items[i] != NULL);
}
return 1;
}
#endif /* Py_DEBUG */
void
_Py_wstrlist_clear(int len, wchar_t **list)
_PyWstrList_Clear(_PyWstrList *list)
{
for (int i=0; i < len; i++) {
PyMem_RawFree(list[i]);
assert(_PyWstrList_CheckConsistency(list));
for (Py_ssize_t i=0; i < list->length; i++) {
PyMem_RawFree(list->items[i]);
}
PyMem_RawFree(list);
PyMem_RawFree(list->items);
list->length = 0;
list->items = NULL;
}
wchar_t**
_Py_wstrlist_copy(int len, wchar_t * const *list)
int
_PyWstrList_Copy(_PyWstrList *list, const _PyWstrList *list2)
{
assert((len > 0 && list != NULL) || len == 0);
size_t size = len * sizeof(list[0]);
wchar_t **list_copy = PyMem_RawMalloc(size);
if (list_copy == NULL) {
return NULL;
assert(_PyWstrList_CheckConsistency(list));
assert(_PyWstrList_CheckConsistency(list2));
if (list2->length == 0) {
_PyWstrList_Clear(list);
return 0;
}
for (int i=0; i < len; i++) {
wchar_t* arg = _PyMem_RawWcsdup(list[i]);
if (arg == NULL) {
_Py_wstrlist_clear(i, list_copy);
return NULL;
_PyWstrList copy = _PyWstrList_INIT;
size_t size = list2->length * sizeof(list2->items[0]);
copy.items = PyMem_RawMalloc(size);
if (copy.items == NULL) {
return -1;
}
for (Py_ssize_t i=0; i < list2->length; i++) {
wchar_t *item = _PyMem_RawWcsdup(list2->items[i]);
if (item == NULL) {
_PyWstrList_Clear(&copy);
return -1;
}
list_copy[i] = arg;
copy.items[i] = item;
copy.length = i + 1;
}
return list_copy;
_PyWstrList_Clear(list);
*list = copy;
return 0;
}
_PyInitError
_Py_wstrlist_append(int *len, wchar_t ***list, const wchar_t *str)
int
_PyWstrList_Append(_PyWstrList *list, const wchar_t *item)
{
if (*len == INT_MAX) {
/* len+1 would overflow */
return _Py_INIT_NO_MEMORY();
}
wchar_t *str2 = _PyMem_RawWcsdup(str);
if (str2 == NULL) {
return _Py_INIT_NO_MEMORY();
if (list->length == PY_SSIZE_T_MAX) {
/* lenght+1 would overflow */
return -1;
}
size_t size = (*len + 1) * sizeof(list[0]);
wchar_t **list2 = (wchar_t **)PyMem_RawRealloc(*list, size);
if (list2 == NULL) {
PyMem_RawFree(str2);
return _Py_INIT_NO_MEMORY();
wchar_t *item2 = _PyMem_RawWcsdup(item);
if (item2 == NULL) {
return -1;
}
list2[*len] = str2;
*list = list2;
(*len)++;
return _Py_INIT_OK();
size_t size = (list->length + 1) * sizeof(list->items[0]);
wchar_t **items2 = (wchar_t **)PyMem_RawRealloc(list->items, size);
if (items2 == NULL) {
PyMem_RawFree(item2);
return -1;
}
items2[list->length] = item2;
list->items = items2;
list->length++;
return 0;
}
static int
_PyWstrList_Extend(_PyWstrList *list, const _PyWstrList *list2)
{
for (Py_ssize_t i = 0; i < list2->length; i++) {
if (_PyWstrList_Append(list, list2->items[i])) {
return -1;
}
}
return 0;
}
PyObject*
_Py_wstrlist_as_pylist(int len, wchar_t **list)
_PyWstrList_AsList(const _PyWstrList *list)
{
assert(list != NULL || len < 1);
assert(_PyWstrList_CheckConsistency(list));
PyObject *pylist = PyList_New(len);
PyObject *pylist = PyList_New(list->length);
if (pylist == NULL) {
return NULL;
}
for (int i = 0; i < len; i++) {
PyObject *v = PyUnicode_FromWideChar(list[i], -1);
if (v == NULL) {
for (Py_ssize_t i = 0; i < list->length; i++) {
PyObject *item = PyUnicode_FromWideChar(list->items[i], -1);
if (item == NULL) {
Py_DECREF(pylist);
return NULL;
}
PyList_SET_ITEM(pylist, i, v);
PyList_SET_ITEM(pylist, i, item);
}
return pylist;
}
@ -369,8 +416,7 @@ _Py_ClearStandardStreamEncoding(void)
/* --- Py_GetArgcArgv() ------------------------------------------- */
/* For Py_GetArgcArgv(); set by _Py_SetArgcArgv() */
static int orig_argc = 0;
static wchar_t **orig_argv = NULL;
static _PyWstrList orig_argv = {.length = 0, .items = NULL};
void
@ -379,32 +425,22 @@ _Py_ClearArgcArgv(void)
PyMemAllocatorEx old_alloc;
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
_Py_wstrlist_clear(orig_argc, orig_argv);
orig_argc = 0;
orig_argv = NULL;
_PyWstrList_Clear(&orig_argv);
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
}
static int
_Py_SetArgcArgv(int argc, wchar_t * const *argv)
_Py_SetArgcArgv(Py_ssize_t argc, wchar_t * const *argv)
{
const _PyWstrList argv_list = {.length = argc, .items = (wchar_t **)argv};
int res;
PyMemAllocatorEx old_alloc;
_PyMem_SetDefaultAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
wchar_t **argv_copy = _Py_wstrlist_copy(argc, argv);
if (argv_copy != NULL) {
_Py_ClearArgcArgv();
orig_argc = argc;
orig_argv = argv_copy;
res = 0;
}
else {
res = -1;
}
res = _PyWstrList_Copy(&orig_argv, &argv_list);
PyMem_SetAllocator(PYMEM_DOMAIN_RAW, &old_alloc);
return res;
@ -416,8 +452,8 @@ _Py_SetArgcArgv(int argc, wchar_t * const *argv)
void
Py_GetArgcArgv(int *argc, wchar_t ***argv)
{
*argc = orig_argc;
*argv = orig_argv;
*argc = (int)orig_argv.length;
*argv = orig_argv.items;
}
@ -439,12 +475,6 @@ _PyCoreConfig_Clear(_PyCoreConfig *config)
PyMem_RawFree(ATTR); \
ATTR = NULL; \
} while (0)
#define CLEAR_WSTRLIST(LEN, LIST) \
do { \
_Py_wstrlist_clear(LEN, LIST); \
LEN = 0; \
LIST = NULL; \
} while (0)
CLEAR(config->pycache_prefix);
CLEAR(config->module_search_path_env);
@ -452,13 +482,11 @@ _PyCoreConfig_Clear(_PyCoreConfig *config)
CLEAR(config->program_name);
CLEAR(config->program);
CLEAR_WSTRLIST(config->argc, config->argv);
config->argc = -1;
CLEAR_WSTRLIST(config->nwarnoption, config->warnoptions);
CLEAR_WSTRLIST(config->nxoption, config->xoptions);
CLEAR_WSTRLIST(config->nmodule_search_path, config->module_search_paths);
config->nmodule_search_path = -1;
_PyWstrList_Clear(&config->argv);
_PyWstrList_Clear(&config->warnoptions);
_PyWstrList_Clear(&config->xoptions);
_PyWstrList_Clear(&config->module_search_paths);
config->use_module_search_paths = 0;
CLEAR(config->executable);
CLEAR(config->prefix);
@ -477,7 +505,6 @@ _PyCoreConfig_Clear(_PyCoreConfig *config)
CLEAR(config->run_module);
CLEAR(config->run_filename);
#undef CLEAR
#undef CLEAR_WSTRLIST
}
@ -509,15 +536,11 @@ _PyCoreConfig_Copy(_PyCoreConfig *config, const _PyCoreConfig *config2)
} \
} \
} while (0)
#define COPY_WSTRLIST(LEN, LIST) \
#define COPY_WSTRLIST(LIST) \
do { \
if (config2->LIST != NULL) { \
config->LIST = _Py_wstrlist_copy(config2->LEN, config2->LIST); \
if (config->LIST == NULL) { \
return -1; \
} \
if (_PyWstrList_Copy(&config->LIST, &config2->LIST) < 0 ) { \
return -1; \
} \
config->LEN = config2->LEN; \
} while (0)
COPY_ATTR(install_signal_handlers);
@ -538,10 +561,11 @@ _PyCoreConfig_Copy(_PyCoreConfig *config, const _PyCoreConfig *config2)
COPY_WSTR_ATTR(program_name);
COPY_WSTR_ATTR(program);
COPY_WSTRLIST(argc, argv);
COPY_WSTRLIST(nwarnoption, warnoptions);
COPY_WSTRLIST(nxoption, xoptions);
COPY_WSTRLIST(nmodule_search_path, module_search_paths);
COPY_WSTRLIST(argv);
COPY_WSTRLIST(warnoptions);
COPY_WSTRLIST(xoptions);
COPY_WSTRLIST(module_search_paths);
COPY_ATTR(use_module_search_paths);
COPY_WSTR_ATTR(executable);
COPY_WSTR_ATTR(prefix);
@ -817,7 +841,7 @@ config_init_executable(_PyCoreConfig *config)
static const wchar_t*
config_get_xoption(const _PyCoreConfig *config, wchar_t *name)
{
return _Py_get_xoption(config->nxoption, config->xoptions, name);
return _Py_get_xoption(&config->xoptions, name);
}
@ -1427,9 +1451,6 @@ _PyCoreConfig_Read(_PyCoreConfig *config, const _PyPreConfig *preconfig)
if (config->tracemalloc < 0) {
config->tracemalloc = 0;
}
if (config->argc < 0) {
config->argc = 0;
}
if (config->filesystem_encoding == NULL || config->filesystem_errors == NULL) {
err = config_init_fs_encoding(config);
@ -1449,6 +1470,7 @@ _PyCoreConfig_Read(_PyCoreConfig *config, const _PyPreConfig *preconfig)
assert(config->stdio_encoding != NULL);
assert(config->stdio_errors != NULL);
assert(config->_check_hash_pycs_mode != NULL);
assert(_PyWstrList_CheckConsistency(&config->argv));
return _Py_INIT_OK();
}
@ -1546,8 +1568,8 @@ _PyCoreConfig_AsDict(const _PyCoreConfig *config)
: (Py_INCREF(Py_None), Py_None))
#define SET_ITEM_WSTR(ATTR) \
SET_ITEM(#ATTR, FROM_WSTRING(config->ATTR))
#define SET_ITEM_WSTRLIST(NOPTION, OPTIONS) \
SET_ITEM(#OPTIONS, _Py_wstrlist_as_pylist(config->NOPTION, config->OPTIONS))
#define SET_ITEM_WSTRLIST(LIST) \
SET_ITEM(#LIST, _PyWstrList_AsList(&config->LIST))
SET_ITEM_INT(install_signal_handlers);
SET_ITEM_INT(use_hash_seed);
@ -1563,13 +1585,13 @@ _PyCoreConfig_AsDict(const _PyCoreConfig *config)
SET_ITEM_STR(filesystem_errors);
SET_ITEM_WSTR(pycache_prefix);
SET_ITEM_WSTR(program_name);
SET_ITEM_WSTRLIST(argc, argv);
SET_ITEM_WSTRLIST(argv);
SET_ITEM_WSTR(program);
SET_ITEM_WSTRLIST(nxoption, xoptions);
SET_ITEM_WSTRLIST(nwarnoption, warnoptions);
SET_ITEM_WSTRLIST(xoptions);
SET_ITEM_WSTRLIST(warnoptions);
SET_ITEM_WSTR(module_search_path_env);
SET_ITEM_WSTR(home);
SET_ITEM_WSTRLIST(nmodule_search_path, module_search_paths);
SET_ITEM_WSTRLIST(module_search_paths);
SET_ITEM_WSTR(executable);
SET_ITEM_WSTR(prefix);
SET_ITEM_WSTR(base_prefix);
@ -1622,13 +1644,9 @@ fail:
/* --- _PyCmdline ------------------------------------------------- */
typedef struct {
const _PyArgv *args;
int argc;
wchar_t **argv;
int nwarnoption; /* Number of -W command line options */
wchar_t **warnoptions; /* Command line -W options */
int nenv_warnoption; /* Number of PYTHONWARNINGS environment variables */
wchar_t **env_warnoptions; /* PYTHONWARNINGS environment variables */
_PyWstrList argv;
_PyWstrList warnoptions; /* Command line -W options */
_PyWstrList env_warnoptions; /* PYTHONWARNINGS environment variables */
int print_help; /* -h, -? options */
int print_version; /* -V option */
} _PyCmdline;
@ -1637,18 +1655,9 @@ typedef struct {
static void
cmdline_clear(_PyCmdline *cmdline)
{
_Py_wstrlist_clear(cmdline->nwarnoption, cmdline->warnoptions);
cmdline->nwarnoption = 0;
cmdline->warnoptions = NULL;
_Py_wstrlist_clear(cmdline->nenv_warnoption, cmdline->env_warnoptions);
cmdline->nenv_warnoption = 0;
cmdline->env_warnoptions = NULL;
if (cmdline->args->use_bytes_argv && cmdline->argv != NULL) {
_Py_wstrlist_clear(cmdline->args->argc, cmdline->argv);
}
cmdline->argv = NULL;
_PyWstrList_Clear(&cmdline->warnoptions);
_PyWstrList_Clear(&cmdline->env_warnoptions);
_PyWstrList_Clear(&cmdline->argv);
}
@ -1659,11 +1668,10 @@ static _PyInitError
config_parse_cmdline(_PyCoreConfig *config, _PyCmdline *cmdline,
int *need_usage)
{
_PyInitError err;
_PyOS_ResetGetOpt();
do {
int longindex = -1;
int c = _PyOS_GetOpt(cmdline->args->argc, cmdline->argv, &longindex);
int c = _PyOS_GetOpt(cmdline->argv.length, cmdline->argv.items, &longindex);
if (c == EOF) {
break;
}
@ -1775,20 +1783,14 @@ config_parse_cmdline(_PyCoreConfig *config, _PyCmdline *cmdline,
break;
case 'W':
err = _Py_wstrlist_append(&cmdline->nwarnoption,
&cmdline->warnoptions,
_PyOS_optarg);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Append(&cmdline->warnoptions, _PyOS_optarg) < 0) {
return _Py_INIT_NO_MEMORY();
}
break;
case 'X':
err = _Py_wstrlist_append(&config->nxoption,
&config->xoptions,
_PyOS_optarg);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Append(&config->xoptions, _PyOS_optarg) < 0) {
return _Py_INIT_NO_MEMORY();
}
break;
@ -1810,10 +1812,10 @@ config_parse_cmdline(_PyCoreConfig *config, _PyCmdline *cmdline,
} while (1);
if (config->run_command == NULL && config->run_module == NULL
&& _PyOS_optind < cmdline->args->argc
&& wcscmp(cmdline->argv[_PyOS_optind], L"-") != 0)
&& _PyOS_optind < cmdline->argv.length
&& wcscmp(cmdline->argv.items[_PyOS_optind], L"-") != 0)
{
config->run_filename = _PyMem_RawWcsdup(cmdline->argv[_PyOS_optind]);
config->run_filename = _PyMem_RawWcsdup(cmdline->argv.items[_PyOS_optind]);
if (config->run_filename == NULL) {
return _Py_INIT_NO_MEMORY();
}
@ -1858,12 +1860,9 @@ cmdline_init_env_warnoptions(_PyCmdline *cmdline, const _PyCoreConfig *config)
warning != NULL;
warning = WCSTOK(NULL, L",", &context))
{
_PyInitError err = _Py_wstrlist_append(&cmdline->nenv_warnoption,
&cmdline->env_warnoptions,
warning);
if (_Py_INIT_FAILED(err)) {
if (_PyWstrList_Append(&cmdline->env_warnoptions, warning) < 0) {
PyMem_RawFree(env);
return err;
return _Py_INIT_NO_MEMORY();
}
}
PyMem_RawFree(env);
@ -1875,8 +1874,8 @@ static _PyInitError
config_init_program(_PyCoreConfig *config, const _PyCmdline *cmdline)
{
wchar_t *program;
if (cmdline->args->argc >= 1 && cmdline->argv != NULL) {
program = cmdline->argv[0];
if (cmdline->argv.length >= 1) {
program = cmdline->argv.items[0];
}
else {
program = L"";
@ -1890,28 +1889,10 @@ config_init_program(_PyCoreConfig *config, const _PyCmdline *cmdline)
}
static _PyInitError
config_add_warnings_optlist(_PyCoreConfig *config,
int len, wchar_t * const *options)
{
for (int i = 0; i < len; i++) {
_PyInitError err = _Py_wstrlist_append(&config->nwarnoption,
&config->warnoptions,
options[i]);
if (_Py_INIT_FAILED(err)) {
return err;
}
}
return _Py_INIT_OK();
}
static _PyInitError
config_init_warnoptions(_PyCoreConfig *config, const _PyCmdline *cmdline)
{
_PyInitError err;
assert(config->nwarnoption == 0);
assert(config->warnoptions.length == 0);
/* The priority order for warnings configuration is (highest precedence
* first):
@ -1929,26 +1910,17 @@ config_init_warnoptions(_PyCoreConfig *config, const _PyCmdline *cmdline)
*/
if (config->preconfig.dev_mode) {
err = _Py_wstrlist_append(&config->nwarnoption,
&config->warnoptions,
L"default");
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Append(&config->warnoptions, L"default")) {
return _Py_INIT_NO_MEMORY();
}
}
err = config_add_warnings_optlist(config,
cmdline->nenv_warnoption,
cmdline->env_warnoptions);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Extend(&config->warnoptions, &cmdline->env_warnoptions) < 0) {
return _Py_INIT_NO_MEMORY();
}
err = config_add_warnings_optlist(config,
cmdline->nwarnoption,
cmdline->warnoptions);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Extend(&config->warnoptions, &cmdline->warnoptions) < 0) {
return _Py_INIT_NO_MEMORY();
}
/* If the bytes_warning_flag isn't set, bytesobject.c and bytearrayobject.c
@ -1956,18 +1928,15 @@ config_init_warnoptions(_PyCoreConfig *config, const _PyCmdline *cmdline)
* case.
*/
if (config->bytes_warning) {
wchar_t *filter;
const wchar_t *filter;
if (config->bytes_warning> 1) {
filter = L"error::BytesWarning";
}
else {
filter = L"default::BytesWarning";
}
err = _Py_wstrlist_append(&config->nwarnoption,
&config->warnoptions,
filter);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Append(&config->warnoptions, filter)) {
return _Py_INIT_NO_MEMORY();
}
}
return _Py_INIT_OK();
@ -1977,23 +1946,24 @@ config_init_warnoptions(_PyCoreConfig *config, const _PyCmdline *cmdline)
static _PyInitError
config_init_argv(_PyCoreConfig *config, const _PyCmdline *cmdline)
{
/* Copy argv to be able to modify it (to force -c/-m) */
int argc = cmdline->args->argc - _PyOS_optind;
wchar_t **argv;
_PyWstrList wargv = _PyWstrList_INIT;
if (argc <= 0 || cmdline->argv == NULL) {
/* Copy argv to be able to modify it (to force -c/-m) */
if (cmdline->argv.length <= _PyOS_optind) {
/* Ensure at least one (empty) argument is seen */
static wchar_t *empty_argv[1] = {L""};
argc = 1;
argv = _Py_wstrlist_copy(1, empty_argv);
if (_PyWstrList_Append(&wargv, L"") < 0) {
return _Py_INIT_NO_MEMORY();
}
}
else {
argv = _Py_wstrlist_copy(argc, &cmdline->argv[_PyOS_optind]);
}
if (argv == NULL) {
return _Py_INIT_NO_MEMORY();
_PyWstrList slice;
slice.length = cmdline->argv.length - _PyOS_optind;
slice.items = &cmdline->argv.items[_PyOS_optind];
if (_PyWstrList_Copy(&wargv, &slice) < 0) {
return _Py_INIT_NO_MEMORY();
}
}
assert(wargv.length >= 1);
wchar_t *arg0 = NULL;
if (config->run_command != NULL) {
@ -2007,17 +1977,16 @@ config_init_argv(_PyCoreConfig *config, const _PyCmdline *cmdline)
if (arg0 != NULL) {
arg0 = _PyMem_RawWcsdup(arg0);
if (arg0 == NULL) {
_Py_wstrlist_clear(argc, argv);
_PyWstrList_Clear(&wargv);
return _Py_INIT_NO_MEMORY();
}
assert(argc >= 1);
PyMem_RawFree(argv[0]);
argv[0] = arg0;
PyMem_RawFree(wargv.items[0]);
wargv.items[0] = arg0;
}
config->argc = argc;
config->argv = argv;
_PyWstrList_Clear(&config->argv);
config->argv = wargv;
return _Py_INIT_OK();
}
@ -2097,7 +2066,7 @@ config_from_cmdline(_PyCoreConfig *config, _PyCmdline *cmdline,
return err;
}
if (_Py_SetArgcArgv(cmdline->args->argc, cmdline->argv) < 0) {
if (_Py_SetArgcArgv(cmdline->argv.length, cmdline->argv.items) < 0) {
return _Py_INIT_NO_MEMORY();
}
return _Py_INIT_OK();
@ -2117,9 +2086,8 @@ _PyCoreConfig_ReadFromArgv(_PyCoreConfig *config, const _PyArgv *args,
_PyCmdline cmdline;
memset(&cmdline, 0, sizeof(cmdline));
cmdline.args = args;
err = _PyArgv_Decode(cmdline.args, &cmdline.argv);
err = _PyArgv_AsWstrList(args, &cmdline.argv);
if (_Py_INIT_FAILED(err)) {
goto done;
}

8
Python/getopt.c
View File

@ -37,9 +37,9 @@
extern "C" {
#endif
int _PyOS_opterr = 1; /* generate error messages */
int _PyOS_optind = 1; /* index into argv array */
wchar_t *_PyOS_optarg = NULL; /* optional argument */
int _PyOS_opterr = 1; /* generate error messages */
Py_ssize_t _PyOS_optind = 1; /* index into argv array */
const wchar_t *_PyOS_optarg = NULL; /* optional argument */
static wchar_t *opt_ptr = L"";
@ -61,7 +61,7 @@ void _PyOS_ResetGetOpt(void)
opt_ptr = L"";
}
int _PyOS_GetOpt(int argc, wchar_t **argv, int *longindex)
int _PyOS_GetOpt(Py_ssize_t argc, wchar_t **argv, int *longindex)
{
wchar_t *ptr;
wchar_t option;

40
Python/pathconfig.c
View File

@ -154,14 +154,14 @@ _PyPathConfig_ClearGlobal(void)
static wchar_t*
wstrlist_join(wchar_t sep, int count, wchar_t **list)
_PyWstrList_Join(const _PyWstrList *list, wchar_t sep)
{
size_t len = 1; /* NUL terminator */
for (int i=0; i < count; i++) {
for (Py_ssize_t i=0; i < list->length; i++) {
if (i != 0) {
len++;
}
len += wcslen(list[i]);
len += wcslen(list->items[i]);
}
wchar_t *text = PyMem_RawMalloc(len * sizeof(wchar_t));
@ -169,8 +169,8 @@ wstrlist_join(wchar_t sep, int count, wchar_t **list)
return NULL;
}
wchar_t *str = text;
for (int i=0; i < count; i++) {
wchar_t *path = list[i];
for (Py_ssize_t i=0; i < list->length; i++) {
wchar_t *path = list->items[i];
if (i != 0) {
*str++ = SEP;
}
@ -194,9 +194,7 @@ _PyCoreConfig_SetPathConfig(const _PyCoreConfig *core_config)
_PyInitError err;
_PyPathConfig path_config = _PyPathConfig_INIT;
path_config.module_search_path = wstrlist_join(DELIM,
core_config->nmodule_search_path,
core_config->module_search_paths);
path_config.module_search_path = _PyWstrList_Join(&core_config->module_search_paths, DELIM);
if (path_config.module_search_path == NULL) {
goto no_memory;
}
@ -244,10 +242,9 @@ static _PyInitError
core_config_init_module_search_paths(_PyCoreConfig *config,
_PyPathConfig *path_config)
{
assert(config->module_search_paths == NULL);
assert(config->nmodule_search_path < 0);
assert(!config->use_module_search_paths);
config->nmodule_search_path = 0;
_PyWstrList_Clear(&config->module_search_paths);
const wchar_t *sys_path = path_config->module_search_path;
const wchar_t delim = DELIM;
@ -266,12 +263,10 @@ core_config_init_module_search_paths(_PyCoreConfig *config,
memcpy(path, sys_path, path_len * sizeof(wchar_t));
path[path_len] = L'\0';
_PyInitError err = _Py_wstrlist_append(&config->nmodule_search_path,
&config->module_search_paths,
path);
int res = _PyWstrList_Append(&config->module_search_paths, path);
PyMem_RawFree(path);
if (_Py_INIT_FAILED(err)) {
return err;
if (res < 0) {
return _Py_INIT_NO_MEMORY();
}
if (*p == '\0') {
@ -279,6 +274,7 @@ core_config_init_module_search_paths(_PyCoreConfig *config,
}
sys_path = p + 1;
}
config->use_module_search_paths = 1;
return _Py_INIT_OK();
}
@ -294,7 +290,7 @@ _PyCoreConfig_CalculatePathConfig(_PyCoreConfig *config)
goto error;
}
if (config->nmodule_search_path < 0) {
if (!config->use_module_search_paths) {
err = core_config_init_module_search_paths(config, &path_config);
if (_Py_INIT_FAILED(err)) {
goto error;
@ -352,7 +348,7 @@ _PyInitError
_PyCoreConfig_InitPathConfig(_PyCoreConfig *config)
{
/* Do we need to calculate the path? */
if ((config->nmodule_search_path < 0)
if (!config->use_module_search_paths
|| (config->executable == NULL)
|| (config->prefix == NULL)
#ifdef MS_WINDOWS
@ -567,8 +563,10 @@ Py_GetProgramName(void)
/* Compute argv[0] which will be prepended to sys.argv */
PyObject*
_PyPathConfig_ComputeArgv0(int argc, wchar_t **argv)
_PyPathConfig_ComputeArgv0(const _PyWstrList *argv)
{
assert(_PyWstrList_CheckConsistency(argv));
wchar_t *argv0;
wchar_t *p = NULL;
Py_ssize_t n = 0;
@ -585,8 +583,8 @@ _PyPathConfig_ComputeArgv0(int argc, wchar_t **argv)
wchar_t fullpath[MAX_PATH];
#endif
argv0 = argv[0];
if (argc > 0 && argv0 != NULL) {
if (argv->length > 0) {
argv0 = argv->items[0];
have_module_arg = (wcscmp(argv0, L"-m") == 0);
have_script_arg = !have_module_arg && (wcscmp(argv0, L"-c") != 0);
}

69
Python/preconfig.c
View File

@ -64,33 +64,38 @@ _Py_SetFileSystemEncoding(const char *encoding, const char *errors)
/* --- _PyArgv ---------------------------------------------------- */
_PyInitError
_PyArgv_Decode(const _PyArgv *args, wchar_t*** argv_p)
_PyArgv_AsWstrList(const _PyArgv *args, _PyWstrList *list)
{
wchar_t** argv;
_PyWstrList wargv = _PyWstrList_INIT;
if (args->use_bytes_argv) {
/* +1 for a the NULL terminator */
size_t size = sizeof(wchar_t*) * (args->argc + 1);
argv = (wchar_t **)PyMem_RawMalloc(size);
if (argv == NULL) {
size_t size = sizeof(wchar_t*) * args->argc;
wargv.items = (wchar_t **)PyMem_RawMalloc(size);
if (wargv.items == NULL) {
return _Py_INIT_NO_MEMORY();
}
for (int i = 0; i < args->argc; i++) {
for (Py_ssize_t i = 0; i < args->argc; i++) {
size_t len;
wchar_t *arg = Py_DecodeLocale(args->bytes_argv[i], &len);
if (arg == NULL) {
_Py_wstrlist_clear(i, argv);
_PyWstrList_Clear(&wargv);
return DECODE_LOCALE_ERR("command line arguments",
(Py_ssize_t)len);
}
argv[i] = arg;
wargv.items[i] = arg;
wargv.length++;
}
argv[args->argc] = NULL;
_PyWstrList_Clear(list);
*list = wargv;
}
else {
argv = args->wchar_argv;
wargv.length = args->argc;
wargv.items = args->wchar_argv;
if (_PyWstrList_Copy(list, &wargv) < 0) {
return _Py_INIT_NO_MEMORY();
}
}
*argv_p = argv;
return _Py_INIT_OK();
}
@ -98,25 +103,16 @@ _PyArgv_Decode(const _PyArgv *args, wchar_t*** argv_p)
/* --- _PyPreCmdline ------------------------------------------------- */
typedef struct {
const _PyArgv *args;
int argc;
wchar_t **argv;
int nxoption; /* Number of -X options */
wchar_t **xoptions; /* -X options */
_PyWstrList argv;
_PyWstrList xoptions; /* -X options */
} _PyPreCmdline;
static void
precmdline_clear(_PyPreCmdline *cmdline)
{
if (cmdline->args->use_bytes_argv && cmdline->argv != NULL) {
_Py_wstrlist_clear(cmdline->args->argc, cmdline->argv);
}
cmdline->argv = NULL;
_Py_wstrlist_clear(cmdline->nxoption, cmdline->xoptions);
cmdline->nxoption = 0;
cmdline->xoptions = NULL;
_PyWstrList_Clear(&cmdline->argv);
_PyWstrList_Clear(&cmdline->xoptions);
}
@ -267,10 +263,10 @@ _Py_get_env_flag(_PyPreConfig *config, int *flag, const char *name)
const wchar_t*
_Py_get_xoption(int nxoption, wchar_t * const *xoptions, const wchar_t *name)
_Py_get_xoption(const _PyWstrList *xoptions, const wchar_t *name)
{
for (int i=0; i < nxoption; i++) {
const wchar_t *option = xoptions[i];
for (Py_ssize_t i=0; i < xoptions->length; i++) {
const wchar_t *option = xoptions->items[i];
size_t len;
wchar_t *sep = wcschr(option, L'=');
if (sep != NULL) {
@ -292,7 +288,7 @@ preconfig_init_utf8_mode(_PyPreConfig *config, const _PyPreCmdline *cmdline)
{
const wchar_t *xopt;
if (cmdline) {
xopt = _Py_get_xoption(cmdline->nxoption, cmdline->xoptions, L"utf8");
xopt = _Py_get_xoption(&cmdline->xoptions, L"utf8");
}
else {
xopt = NULL;
@ -435,7 +431,7 @@ preconfig_read(_PyPreConfig *config, const _PyPreCmdline *cmdline)
}
/* dev_mode */
if ((cmdline && _Py_get_xoption(cmdline->nxoption, cmdline->xoptions, L"dev"))
if ((cmdline && _Py_get_xoption(&cmdline->xoptions, L"dev"))
|| _PyPreConfig_GetEnv(config, "PYTHONDEVMODE"))
{
config->dev_mode = 1;
@ -579,7 +575,7 @@ preconfig_parse_cmdline(_PyPreConfig *config, _PyPreCmdline *cmdline)
_PyOS_opterr = 0;
do {
int longindex = -1;
int c = _PyOS_GetOpt(cmdline->args->argc, cmdline->argv, &longindex);
int c = _PyOS_GetOpt(cmdline->argv.length, cmdline->argv.items, &longindex);
if (c == EOF || c == 'c' || c == 'm') {
break;
@ -596,12 +592,8 @@ preconfig_parse_cmdline(_PyPreConfig *config, _PyPreCmdline *cmdline)
case 'X':
{
_PyInitError err;
err = _Py_wstrlist_append(&cmdline->nxoption,
&cmdline->xoptions,
_PyOS_optarg);
if (_Py_INIT_FAILED(err)) {
return err;
if (_PyWstrList_Append(&cmdline->xoptions, _PyOS_optarg) < 0) {
return _Py_INIT_NO_MEMORY();
}
break;
}
@ -624,9 +616,8 @@ preconfig_from_argv(_PyPreConfig *config, const _PyArgv *args)
_PyPreCmdline cmdline;
memset(&cmdline, 0, sizeof(cmdline));
cmdline.args = args;
err = _PyArgv_Decode(cmdline.args, &cmdline.argv);
err = _PyArgv_AsWstrList(args, &cmdline.argv);
if (_Py_INIT_FAILED(err)) {
goto done;
}

43
Python/sysmodule.c
View File

@ -2739,35 +2739,35 @@ PySys_SetPath(const wchar_t *path)
}
static PyObject *
makeargvobject(int argc, wchar_t **argv)
make_sys_argv(int argc, wchar_t * const * argv)
{
PyObject *av;
if (argc <= 0 || argv == NULL) {
/* Ensure at least one (empty) argument is seen */
static wchar_t *empty_argv[1] = {L""};
argv = empty_argv;
argc = 1;
PyObject *list = PyList_New(argc);
if (list == NULL) {
return NULL;
}
av = PyList_New(argc);
if (av != NULL) {
int i;
for (i = 0; i < argc; i++) {
PyObject *v = PyUnicode_FromWideChar(argv[i], -1);
if (v == NULL) {
Py_DECREF(av);
av = NULL;
break;
}
PyList_SET_ITEM(av, i, v);
for (Py_ssize_t i = 0; i < argc; i++) {
PyObject *v = PyUnicode_FromWideChar(argv[i], -1);
if (v == NULL) {
Py_DECREF(list);
return NULL;
}
PyList_SET_ITEM(list, i, v);
}
return av;
return list;
}
void
PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath)
{
PyObject *av = makeargvobject(argc, argv);
if (argc < 1 || argv == NULL) {
/* Ensure at least one (empty) argument is seen */
wchar_t* empty_argv[1] = {L""};
argv = empty_argv;
argc = 1;
}
PyObject *av = make_sys_argv(argc, argv);
if (av == NULL) {
Py_FatalError("no mem for sys.argv");
}
@ -2780,7 +2780,8 @@ PySys_SetArgvEx(int argc, wchar_t **argv, int updatepath)
if (updatepath) {
/* If argv[0] is not '-c' nor '-m', prepend argv[0] to sys.path.
If argv[0] is a symlink, use the real path. */
PyObject *argv0 = _PyPathConfig_ComputeArgv0(argc, argv);
const _PyWstrList argv_list = {.length = argc, .items = argv};
PyObject *argv0 = _PyPathConfig_ComputeArgv0(&argv_list);
if (argv0 == NULL) {
Py_FatalError("can't compute path0 from argv");
}