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pythongh-123961: Remove global variable ModDict in _cursesmodule.c (
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python#123962)
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@picnixz
picnixz committed Sep 13, 2024
1 parent e5b0185 commit 403f3dd
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Showing 2 changed files with 44 additions and 38 deletions.
79 changes: 44 additions & 35 deletions Modules/_cursesmodule.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -3255,8 +3255,6 @@ _curses_init_pair_impl(PyObject *module, int pair_number, int fg, int bg)
Py_RETURN_NONE;
}

static PyObject *ModDict;

/*[clinic input]
_curses.initscr
Expand Down Expand Up @@ -3285,19 +3283,23 @@ _curses_initscr_impl(PyObject *module)

initialised = initialised_setupterm = TRUE;

/* This was moved from initcurses() because it core dumped on SGI,
where they're not defined until you've called initscr() */
#define SetDictInt(NAME, VALUE) \
do { \
PyObject *value = PyLong_FromLong((long)(VALUE)); \
if (value == NULL) { \
return NULL; \
} \
int rc = PyDict_SetItemString(ModDict, (NAME), value); \
Py_DECREF(value); \
if (rc < 0) { \
return NULL; \
} \
PyObject *module_dict = PyModule_GetDict(module); // borrowed
if (module_dict == NULL) {
return NULL;
}
/* This was moved from initcurses() because it core dumped on SGI,
where they're not defined until you've called initscr() */
#define SetDictInt(NAME, VALUE) \
do { \
PyObject *value = PyLong_FromLong((long)(VALUE)); \
if (value == NULL) { \
return NULL; \
} \
int rc = PyDict_SetItemString(module_dict, (NAME), value); \
Py_DECREF(value); \
if (rc < 0) { \
return NULL; \
} \
} while (0)

/* Here are some graphic symbols you can use */
Expand Down Expand Up @@ -3976,11 +3978,11 @@ _curses_qiflush_impl(PyObject *module, int flag)
Py_RETURN_NONE;
}

/* Internal helper used for updating curses.LINES, curses.COLS, _curses.LINES
* and _curses.COLS */
#if defined(HAVE_CURSES_RESIZETERM) || defined(HAVE_CURSES_RESIZE_TERM)
/* Internal helper used for updating curses.LINES, curses.COLS, _curses.LINES
* and _curses.COLS. Returns 1 on success and 0 on failure. */
static int
update_lines_cols(void)
update_lines_cols(PyObject *private_module)
{
PyObject *exposed_module = NULL, *o = NULL;

Expand All @@ -3992,6 +3994,10 @@ update_lines_cols(void)
if (exposed_module_dict == NULL) {
goto error;
}
PyObject *private_module_dict = PyModule_GetDict(private_module); // borrowed
if (private_module_dict == NULL) {
goto error;
}

o = PyLong_FromLong(LINES);
if (o == NULL) {
Expand All @@ -4000,7 +4006,7 @@ update_lines_cols(void)
if (PyDict_SetItemString(exposed_module_dict, "LINES", o) < 0) {
goto error;
}
if (PyDict_SetItemString(ModDict, "LINES", o) < 0) {
if (PyDict_SetItemString(private_module_dict, "LINES", o) < 0) {
goto error;
}
Py_DECREF(o);
Expand All @@ -4012,7 +4018,7 @@ update_lines_cols(void)
if (PyDict_SetItemString(exposed_module_dict, "COLS", o) < 0) {
goto error;
}
if (PyDict_SetItemString(ModDict, "COLS", o) < 0) {
if (PyDict_SetItemString(private_module_dict, "COLS", o) < 0) {
goto error;
}
Py_DECREF(o);
Expand All @@ -4034,7 +4040,7 @@ static PyObject *
_curses_update_lines_cols_impl(PyObject *module)
/*[clinic end generated code: output=423f2b1e63ed0f75 input=5f065ab7a28a5d90]*/
{
if (!update_lines_cols()) {
if (!update_lines_cols(module)) {
return NULL;
}
Py_RETURN_NONE;
Expand Down Expand Up @@ -4121,7 +4127,7 @@ _curses_resizeterm_impl(PyObject *module, int nlines, int ncols)
result = PyCursesCheckERR(resizeterm(nlines, ncols), "resizeterm");
if (!result)
return NULL;
if (!update_lines_cols()) {
if (!update_lines_cols(module)) {
Py_DECREF(result);
return NULL;
}
Expand Down Expand Up @@ -4160,7 +4166,7 @@ _curses_resize_term_impl(PyObject *module, int nlines, int ncols)
result = PyCursesCheckERR(resize_term(nlines, ncols), "resize_term");
if (!result)
return NULL;
if (!update_lines_cols()) {
if (!update_lines_cols(module)) {
Py_DECREF(result);
return NULL;
}
Expand Down Expand Up @@ -4232,17 +4238,21 @@ _curses_start_color_impl(PyObject *module)

initialisedcolors = TRUE;

#define DICT_ADD_INT_VALUE(NAME, VALUE) \
do { \
PyObject *value = PyLong_FromLong((long)(VALUE)); \
if (value == NULL) { \
return NULL; \
} \
int rc = PyDict_SetItemString(ModDict, (NAME), value); \
Py_DECREF(value); \
if (rc < 0) { \
return NULL; \
} \
PyObject *module_dict = PyModule_GetDict(module); // borrowed
if (module_dict == NULL) {
return NULL;
}
#define DICT_ADD_INT_VALUE(NAME, VALUE) \
do { \
PyObject *value = PyLong_FromLong((long)(VALUE)); \
if (value == NULL) { \
return NULL; \
} \
int rc = PyDict_SetItemString(module_dict, (NAME), value); \
Py_DECREF(value); \
if (rc < 0) { \
return NULL; \
} \
} while (0)

DICT_ADD_INT_VALUE("COLORS", COLORS);
Expand Down Expand Up @@ -4779,7 +4789,6 @@ cursesmodule_exec(PyObject *module)
if (module_dict == NULL) {
return -1;
}
ModDict = module_dict; /* For PyCurses_InitScr to use later */

void **PyCurses_API = PyMem_Calloc(PyCurses_API_pointers, sizeof(void *));
if (PyCurses_API == NULL) {
Expand Down
3 changes: 0 additions & 3 deletions Tools/c-analyzer/cpython/globals-to-fix.tsv
View file
Original file line number Diff line number Diff line change
Expand Up @@ -391,9 +391,6 @@ Modules/xxmodule.c - ErrorObject -
##-----------------------
## other

## initialized once
Modules/_cursesmodule.c - ModDict -

## state
Modules/_datetimemodule.c - _datetime_global_state -
Modules/_tkinter.c - tcl_lock -
Expand Down

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