bpo-33042: Fix pre-initialization sys module configuration (GH-6157) · python/cpython@c6d94c3 (original) (raw)
`@@ -2,6 +2,7 @@
`
2
2
`#include "pythread.h"
`
3
3
`#include <inttypes.h>
`
4
4
`#include <stdio.h>
`
``
5
`+
#include <wchar.h>
`
5
6
``
6
7
`/*********************************************************
`
7
8
` * Embedded interpreter tests that need a custom exe
`
`@@ -130,23 +131,89 @@ static int test_forced_io_encoding(void)
`
130
131
` * Test parts of the C-API that work before initialization
`
131
132
` *********************************************************/
`
132
133
``
``
134
`+
/* The pre-initialization tests tend to break by segfaulting, so explicitly
`
``
135
`+
- flushed progress messages make the broken API easier to find when they fail.
`
``
136
`+
*/
`
``
137
`+
#define _Py_EMBED_PREINIT_CHECK(msg) \
`
``
138
`+
do {printf(msg); fflush(stdout);} while (0);
`
``
139
+
133
140
`static int test_pre_initialization_api(void)
`
134
141
`{
`
135
142
`/* Leading "./" ensures getpath.c can still find the standard library */
`
``
143
`+
_Py_EMBED_PREINIT_CHECK("Checking Py_DecodeLocale\n");
`
136
144
`wchar_t *program = Py_DecodeLocale("./spam", NULL);
`
137
145
`if (program == NULL) {
`
138
146
`fprintf(stderr, "Fatal error: cannot decode program name\n");
`
139
147
`return 1;
`
140
148
` }
`
``
149
`+
_Py_EMBED_PREINIT_CHECK("Checking Py_SetProgramName\n");
`
141
150
`Py_SetProgramName(program);
`
142
151
``
``
152
`+
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
`
143
153
`Py_Initialize();
`
``
154
`+
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
`
``
155
`+
PyRun_SimpleString("import sys; "
`
``
156
`+
"print('sys.executable:', sys.executable)");
`
``
157
`+
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
`
144
158
`Py_Finalize();
`
145
159
``
``
160
`+
_Py_EMBED_PREINIT_CHECK("Freeing memory allocated by Py_DecodeLocale\n");
`
146
161
`PyMem_RawFree(program);
`
147
162
`return 0;
`
148
163
`}
`
149
164
``
``
165
+
``
166
`+
/* bpo-33042: Ensure embedding apps can predefine sys module options */
`
``
167
`+
static int test_pre_initialization_sys_options(void)
`
``
168
`+
{
`
``
169
`+
/* We allocate a couple of the option dynamically, and then delete
`
``
170
`+
- them before calling Py_Initialize. This ensures the interpreter isn't
`
``
171
`+
- relying on the caller to keep the passed in strings alive.
`
``
172
`+
*/
`
``
173
`+
wchar_t *static_warnoption = L"once";
`
``
174
`+
wchar_t *static_xoption = L"also_not_an_option=2";
`
``
175
`+
size_t warnoption_len = wcslen(static_warnoption);
`
``
176
`+
size_t xoption_len = wcslen(static_xoption);
`
``
177
`+
wchar_t *dynamic_once_warnoption = calloc(warnoption_len+1, sizeof(wchar_t));
`
``
178
`+
wchar_t *dynamic_xoption = calloc(xoption_len+1, sizeof(wchar_t));
`
``
179
`+
wcsncpy(dynamic_once_warnoption, static_warnoption, warnoption_len+1);
`
``
180
`+
wcsncpy(dynamic_xoption, static_xoption, xoption_len+1);
`
``
181
+
``
182
`+
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption\n");
`
``
183
`+
PySys_AddWarnOption(L"default");
`
``
184
`+
_Py_EMBED_PREINIT_CHECK("Checking PySys_ResetWarnOptions\n");
`
``
185
`+
PySys_ResetWarnOptions();
`
``
186
`+
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption linked list\n");
`
``
187
`+
PySys_AddWarnOption(dynamic_once_warnoption);
`
``
188
`+
PySys_AddWarnOption(L"module");
`
``
189
`+
PySys_AddWarnOption(L"default");
`
``
190
`+
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddXOption\n");
`
``
191
`+
PySys_AddXOption(L"not_an_option=1");
`
``
192
`+
PySys_AddXOption(dynamic_xoption);
`
``
193
+
``
194
`+
/* Delete the dynamic options early */
`
``
195
`+
free(dynamic_once_warnoption);
`
``
196
`+
dynamic_once_warnoption = NULL;
`
``
197
`+
free(dynamic_xoption);
`
``
198
`+
dynamic_xoption = NULL;
`
``
199
+
``
200
`+
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
`
``
201
`+
_testembed_Py_Initialize();
`
``
202
`+
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
`
``
203
`+
PyRun_SimpleString("import sys; "
`
``
204
`+
"print('sys.warnoptions:', sys.warnoptions); "
`
``
205
`+
"print('sys._xoptions:', sys._xoptions); "
`
``
206
`+
"warnings = sys.modules['warnings']; "
`
``
207
`+
"latest_filters = [f[0] for f in warnings.filters[:3]]; "
`
``
208
`+
"print('warnings.filters[:3]:', latest_filters)");
`
``
209
`+
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
`
``
210
`+
Py_Finalize();
`
``
211
+
``
212
`+
return 0;
`
``
213
`+
}
`
``
214
+
``
215
+
``
216
`+
/* bpo-20891: Avoid race condition when initialising the GIL */
`
150
217
`static void bpo20891_thread(void *lockp)
`
151
218
`{
`
152
219
`PyThread_type_lock lock = ((PyThread_type_lock)lockp);
`
`@@ -217,6 +284,7 @@ static struct TestCase TestCases[] = {
`
217
284
` { "forced_io_encoding", test_forced_io_encoding },
`
218
285
` { "repeated_init_and_subinterpreters", test_repeated_init_and_subinterpreters },
`
219
286
` { "pre_initialization_api", test_pre_initialization_api },
`
``
287
`+
{ "pre_initialization_sys_options", test_pre_initialization_sys_options },
`
220
288
` { "bpo20891", test_bpo20891 },
`
221
289
` { NULL, NULL }
`
222
290
`};
`
`@@ -232,13 +300,13 @@ int main(int argc, char *argv[])
`
232
300
``
233
301
`/* No match found, or no test name provided, so display usage */
`
234
302
`printf("Python " PY_VERSION " _testembed executable for embedded interpreter tests\n"
`
235
``
`-
"Normally executed via 'EmbeddingTests' in Lib/test/test_capi.py\n\n"
`
``
303
`+
"Normally executed via 'EmbeddingTests' in Lib/test/test_embed.py\n\n"
`
236
304
`"Usage: %s TESTNAME\n\nAll available tests:\n", argv[0]);
`
237
305
`for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
`
238
306
`printf(" %s\n", tc->name);
`
239
307
` }
`
240
308
``
241
``
`-
/* Non-zero exit code will cause test_capi.py tests to fail.
`
``
309
`+
/* Non-zero exit code will cause test_embed.py tests to fail.
`
242
310
` This is intentional. */
`
243
311
`return -1;
`
244
312
`}
`