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795 lines (639 loc) · 21.4 KB
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#include <Python.h>
#include "pythread.h"
#include <inttypes.h>
#include <stdio.h>
#include <wchar.h>
/*********************************************************
* Embedded interpreter tests that need a custom exe
*
* Executed via 'EmbeddingTests' in Lib/test/test_capi.py
*********************************************************/
static void _testembed_Py_Initialize(void)
{
/* HACK: the "./" at front avoids a search along the PATH in
Modules/getpath.c */
Py_SetProgramName(L"./_testembed");
Py_Initialize();
}
/*****************************************************
* Test repeated initialisation and subinterpreters
*****************************************************/
static void print_subinterp(void)
{
/* Output information about the interpreter in the format
expected in Lib/test/test_capi.py (test_subinterps). */
PyThreadState *ts = PyThreadState_Get();
PyInterpreterState *interp = ts->interp;
int64_t id = PyInterpreterState_GetID(interp);
printf("interp %" PRId64 " <0x%" PRIXPTR ">, thread state <0x%" PRIXPTR ">: ",
id, (uintptr_t)interp, (uintptr_t)ts);
fflush(stdout);
PyRun_SimpleString(
"import sys;"
"print('id(modules) =', id(sys.modules));"
"sys.stdout.flush()"
);
}
static int test_repeated_init_and_subinterpreters(void)
{
PyThreadState *mainstate, *substate;
PyGILState_STATE gilstate;
int i, j;
for (i=0; i<15; i++) {
printf("--- Pass %d ---\n", i);
_testembed_Py_Initialize();
mainstate = PyThreadState_Get();
PyEval_InitThreads();
PyEval_ReleaseThread(mainstate);
gilstate = PyGILState_Ensure();
print_subinterp();
PyThreadState_Swap(NULL);
for (j=0; j<3; j++) {
substate = Py_NewInterpreter();
print_subinterp();
Py_EndInterpreter(substate);
}
PyThreadState_Swap(mainstate);
print_subinterp();
PyGILState_Release(gilstate);
PyEval_RestoreThread(mainstate);
Py_Finalize();
}
return 0;
}
/*****************************************************
* Test forcing a particular IO encoding
*****************************************************/
static void check_stdio_details(const char *encoding, const char * errors)
{
/* Output info for the test case to check */
if (encoding) {
printf("Expected encoding: %s\n", encoding);
} else {
printf("Expected encoding: default\n");
}
if (errors) {
printf("Expected errors: %s\n", errors);
} else {
printf("Expected errors: default\n");
}
fflush(stdout);
/* Force the given IO encoding */
Py_SetStandardStreamEncoding(encoding, errors);
_testembed_Py_Initialize();
PyRun_SimpleString(
"import sys;"
"print('stdin: {0.encoding}:{0.errors}'.format(sys.stdin));"
"print('stdout: {0.encoding}:{0.errors}'.format(sys.stdout));"
"print('stderr: {0.encoding}:{0.errors}'.format(sys.stderr));"
"sys.stdout.flush()"
);
Py_Finalize();
}
static int test_forced_io_encoding(void)
{
/* Check various combinations */
printf("--- Use defaults ---\n");
check_stdio_details(NULL, NULL);
printf("--- Set errors only ---\n");
check_stdio_details(NULL, "ignore");
printf("--- Set encoding only ---\n");
check_stdio_details("iso8859-1", NULL);
printf("--- Set encoding and errors ---\n");
check_stdio_details("iso8859-1", "replace");
/* Check calling after initialization fails */
Py_Initialize();
if (Py_SetStandardStreamEncoding(NULL, NULL) == 0) {
printf("Unexpected success calling Py_SetStandardStreamEncoding");
}
Py_Finalize();
return 0;
}
/*********************************************************
* Test parts of the C-API that work before initialization
*********************************************************/
/* The pre-initialization tests tend to break by segfaulting, so explicitly
* flushed progress messages make the broken API easier to find when they fail.
*/
#define _Py_EMBED_PREINIT_CHECK(msg) \
do {printf(msg); fflush(stdout);} while (0);
static int test_pre_initialization_api(void)
{
/* the test doesn't support custom memory allocators */
putenv("PYTHONMALLOC=");
/* Leading "./" ensures getpath.c can still find the standard library */
_Py_EMBED_PREINIT_CHECK("Checking Py_DecodeLocale\n");
wchar_t *program = Py_DecodeLocale("./spam", NULL);
if (program == NULL) {
fprintf(stderr, "Fatal error: cannot decode program name\n");
return 1;
}
_Py_EMBED_PREINIT_CHECK("Checking Py_SetProgramName\n");
Py_SetProgramName(program);
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
Py_Initialize();
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
PyRun_SimpleString("import sys; "
"print('sys.executable:', sys.executable)");
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
Py_Finalize();
_Py_EMBED_PREINIT_CHECK("Freeing memory allocated by Py_DecodeLocale\n");
PyMem_RawFree(program);
return 0;
}
/* bpo-33042: Ensure embedding apps can predefine sys module options */
static int test_pre_initialization_sys_options(void)
{
/* We allocate a couple of the options dynamically, and then delete
* them before calling Py_Initialize. This ensures the interpreter isn't
* relying on the caller to keep the passed in strings alive.
*/
const wchar_t *static_warnoption = L"once";
const wchar_t *static_xoption = L"also_not_an_option=2";
size_t warnoption_len = wcslen(static_warnoption);
size_t xoption_len = wcslen(static_xoption);
wchar_t *dynamic_once_warnoption = \
(wchar_t *) calloc(warnoption_len+1, sizeof(wchar_t));
wchar_t *dynamic_xoption = \
(wchar_t *) calloc(xoption_len+1, sizeof(wchar_t));
wcsncpy(dynamic_once_warnoption, static_warnoption, warnoption_len+1);
wcsncpy(dynamic_xoption, static_xoption, xoption_len+1);
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption\n");
PySys_AddWarnOption(L"default");
_Py_EMBED_PREINIT_CHECK("Checking PySys_ResetWarnOptions\n");
PySys_ResetWarnOptions();
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddWarnOption linked list\n");
PySys_AddWarnOption(dynamic_once_warnoption);
PySys_AddWarnOption(L"module");
PySys_AddWarnOption(L"default");
_Py_EMBED_PREINIT_CHECK("Checking PySys_AddXOption\n");
PySys_AddXOption(L"not_an_option=1");
PySys_AddXOption(dynamic_xoption);
/* Delete the dynamic options early */
free(dynamic_once_warnoption);
dynamic_once_warnoption = NULL;
free(dynamic_xoption);
dynamic_xoption = NULL;
_Py_EMBED_PREINIT_CHECK("Initializing interpreter\n");
_testembed_Py_Initialize();
_Py_EMBED_PREINIT_CHECK("Check sys module contents\n");
PyRun_SimpleString("import sys; "
"print('sys.warnoptions:', sys.warnoptions); "
"print('sys._xoptions:', sys._xoptions); "
"warnings = sys.modules['warnings']; "
"latest_filters = [f[0] for f in warnings.filters[:3]]; "
"print('warnings.filters[:3]:', latest_filters)");
_Py_EMBED_PREINIT_CHECK("Finalizing interpreter\n");
Py_Finalize();
return 0;
}
/* bpo-20891: Avoid race condition when initialising the GIL */
static void bpo20891_thread(void *lockp)
{
PyThread_type_lock lock = *((PyThread_type_lock*)lockp);
PyGILState_STATE state = PyGILState_Ensure();
if (!PyGILState_Check()) {
fprintf(stderr, "PyGILState_Check failed!");
abort();
}
PyGILState_Release(state);
PyThread_release_lock(lock);
PyThread_exit_thread();
}
static int test_bpo20891(void)
{
/* the test doesn't support custom memory allocators */
putenv("PYTHONMALLOC=");
/* bpo-20891: Calling PyGILState_Ensure in a non-Python thread before
calling PyEval_InitThreads() must not crash. PyGILState_Ensure() must
call PyEval_InitThreads() for us in this case. */
PyThread_type_lock lock = PyThread_allocate_lock();
if (!lock) {
fprintf(stderr, "PyThread_allocate_lock failed!");
return 1;
}
_testembed_Py_Initialize();
unsigned long thrd = PyThread_start_new_thread(bpo20891_thread, &lock);
if (thrd == PYTHREAD_INVALID_THREAD_ID) {
fprintf(stderr, "PyThread_start_new_thread failed!");
return 1;
}
PyThread_acquire_lock(lock, WAIT_LOCK);
Py_BEGIN_ALLOW_THREADS
/* wait until the thread exit */
PyThread_acquire_lock(lock, WAIT_LOCK);
Py_END_ALLOW_THREADS
PyThread_free_lock(lock);
return 0;
}
static int test_initialize_twice(void)
{
_testembed_Py_Initialize();
/* bpo-33932: Calling Py_Initialize() twice should do nothing
* (and not crash!). */
Py_Initialize();
Py_Finalize();
return 0;
}
static int test_initialize_pymain(void)
{
wchar_t *argv[] = {L"PYTHON", L"-c",
L"import sys; print(f'Py_Main() after Py_Initialize: sys.argv={sys.argv}')",
L"arg2"};
_testembed_Py_Initialize();
/* bpo-34008: Calling Py_Main() after Py_Initialize() must not crash */
Py_Main(Py_ARRAY_LENGTH(argv), argv);
Py_Finalize();
return 0;
}
static int
dump_config_impl(void)
{
PyObject *config = _Py_GetConfigsAsDict();
if (config == NULL) {
return -1;
}
PyObject *res;
PyObject *json = PyImport_ImportModule("json");
if (json) {
res = PyObject_CallMethod(json, "dumps", "O", config);
Py_DECREF(json);
}
else {
res = NULL;
}
Py_CLEAR(config);
if (res == NULL) {
return -1;
}
PySys_FormatStdout("%S\n", res);
Py_DECREF(res);
return 0;
}
static void
dump_config(void)
{
if (dump_config_impl() < 0) {
fprintf(stderr, "failed to dump the configuration:\n");
PyErr_Print();
}
}
static int test_init_default_config(void)
{
_testembed_Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_global_config(void)
{
/* FIXME: test Py_IgnoreEnvironmentFlag */
putenv("PYTHONUTF8=0");
Py_UTF8Mode = 1;
/* Test initialization from global configuration variables (Py_xxx) */
Py_SetProgramName(L"./globalvar");
/* Py_IsolatedFlag is not tested */
Py_NoSiteFlag = 1;
Py_BytesWarningFlag = 1;
putenv("PYTHONINSPECT=");
Py_InspectFlag = 1;
putenv("PYTHONOPTIMIZE=0");
Py_InteractiveFlag = 1;
putenv("PYTHONDEBUG=0");
Py_OptimizeFlag = 2;
/* Py_DebugFlag is not tested */
putenv("PYTHONDONTWRITEBYTECODE=");
Py_DontWriteBytecodeFlag = 1;
putenv("PYTHONVERBOSE=0");
Py_VerboseFlag = 1;
Py_QuietFlag = 1;
Py_NoUserSiteDirectory = 1;
putenv("PYTHONUNBUFFERED=");
Py_UnbufferedStdioFlag = 1;
Py_FrozenFlag = 1;
/* FIXME: test Py_LegacyWindowsFSEncodingFlag */
/* FIXME: test Py_LegacyWindowsStdioFlag */
Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_from_config(void)
{
_PyInitError err;
_PyPreConfig preconfig = _PyPreConfig_INIT;
putenv("PYTHONMALLOC=malloc_debug");
preconfig.allocator = "malloc";
putenv("PYTHONUTF8=0");
Py_UTF8Mode = 0;
preconfig.utf8_mode = 1;
err = _Py_PreInitialize(&preconfig);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
/* Test _Py_InitializeFromConfig() */
_PyCoreConfig config = _PyCoreConfig_INIT;
config.install_signal_handlers = 0;
/* FIXME: test use_environment */
putenv("PYTHONHASHSEED=42");
config.use_hash_seed = 1;
config.hash_seed = 123;
/* dev_mode=1 is tested in test_init_dev_mode() */
putenv("PYTHONFAULTHANDLER=");
config.faulthandler = 1;
putenv("PYTHONTRACEMALLOC=0");
config.tracemalloc = 2;
putenv("PYTHONPROFILEIMPORTTIME=0");
config.import_time = 1;
config.show_ref_count = 1;
config.show_alloc_count = 1;
/* FIXME: test dump_refs: bpo-34223 */
putenv("PYTHONMALLOCSTATS=0");
config.malloc_stats = 1;
/* FIXME: test coerce_c_locale and coerce_c_locale_warn */
putenv("PYTHONPYCACHEPREFIX=env_pycache_prefix");
config.pycache_prefix = L"conf_pycache_prefix";
Py_SetProgramName(L"./globalvar");
config.program_name = L"./conf_program_name";
static wchar_t* argv[2] = {
L"-c",
L"pass",
};
config.argv.length = Py_ARRAY_LENGTH(argv);
config.argv.items = argv;
config.program = L"conf_program";
static wchar_t* xoptions[3] = {
L"core_xoption1=3",
L"core_xoption2=",
L"core_xoption3",
};
config.xoptions.length = Py_ARRAY_LENGTH(xoptions);
config.xoptions.items = xoptions;
static wchar_t* warnoptions[1] = {
L"error::ResourceWarning",
};
config.warnoptions.length = Py_ARRAY_LENGTH(warnoptions);
config.warnoptions.items = warnoptions;
/* FIXME: test module_search_path_env */
/* FIXME: test home */
/* FIXME: test path config: module_search_path .. dll_path */
putenv("PYTHONVERBOSE=0");
Py_VerboseFlag = 0;
config.verbose = 1;
Py_NoSiteFlag = 0;
config.site_import = 0;
Py_BytesWarningFlag = 0;
config.bytes_warning = 1;
putenv("PYTHONINSPECT=");
Py_InspectFlag = 0;
config.inspect = 1;
Py_InteractiveFlag = 0;
config.interactive = 1;
putenv("PYTHONOPTIMIZE=0");
Py_OptimizeFlag = 1;
config.optimization_level = 2;
/* FIXME: test parser_debug */
putenv("PYTHONDONTWRITEBYTECODE=");
Py_DontWriteBytecodeFlag = 0;
config.write_bytecode = 0;
Py_QuietFlag = 0;
config.quiet = 1;
putenv("PYTHONUNBUFFERED=");
Py_UnbufferedStdioFlag = 0;
config.buffered_stdio = 0;
putenv("PYTHONIOENCODING=cp424");
Py_SetStandardStreamEncoding("ascii", "ignore");
#ifdef MS_WINDOWS
/* Py_SetStandardStreamEncoding() sets Py_LegacyWindowsStdioFlag to 1.
Force it to 0 through the config. */
config.legacy_windows_stdio = 0;
#endif
config.stdio_encoding = "iso8859-1";
config.stdio_errors = "replace";
putenv("PYTHONNOUSERSITE=");
Py_NoUserSiteDirectory = 0;
config.user_site_directory = 0;
config._check_hash_pycs_mode = "always";
Py_FrozenFlag = 0;
config._frozen = 1;
err = _Py_InitializeFromConfig(&config);
/* Don't call _PyCoreConfig_Clear() since all strings are static */
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
return 0;
}
static void test_init_env_putenvs(void)
{
putenv("PYTHONHASHSEED=42");
putenv("PYTHONMALLOC=malloc");
putenv("PYTHONTRACEMALLOC=2");
putenv("PYTHONPROFILEIMPORTTIME=1");
putenv("PYTHONMALLOCSTATS=1");
putenv("PYTHONUTF8=1");
putenv("PYTHONVERBOSE=1");
putenv("PYTHONINSPECT=1");
putenv("PYTHONOPTIMIZE=2");
putenv("PYTHONDONTWRITEBYTECODE=1");
putenv("PYTHONUNBUFFERED=1");
putenv("PYTHONPYCACHEPREFIX=env_pycache_prefix");
putenv("PYTHONNOUSERSITE=1");
putenv("PYTHONFAULTHANDLER=1");
putenv("PYTHONIOENCODING=iso8859-1:replace");
/* FIXME: test PYTHONWARNINGS */
/* FIXME: test PYTHONEXECUTABLE */
/* FIXME: test PYTHONHOME */
/* FIXME: test PYTHONDEBUG */
/* FIXME: test PYTHONDUMPREFS */
/* FIXME: test PYTHONCOERCECLOCALE */
/* FIXME: test PYTHONPATH */
}
static int test_init_env(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
test_init_env_putenvs();
_testembed_Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static void test_init_env_dev_mode_putenvs(void)
{
test_init_env_putenvs();
putenv("PYTHONMALLOC=");
putenv("PYTHONFAULTHANDLER=");
putenv("PYTHONDEVMODE=1");
}
static int test_init_env_dev_mode(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
test_init_env_dev_mode_putenvs();
_testembed_Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_env_dev_mode_alloc(void)
{
/* Test initialization from environment variables */
Py_IgnoreEnvironmentFlag = 0;
test_init_env_dev_mode_putenvs();
putenv("PYTHONMALLOC=malloc");
_testembed_Py_Initialize();
dump_config();
Py_Finalize();
return 0;
}
static int test_init_isolated(void)
{
_PyInitError err;
_PyPreConfig preconfig = _PyPreConfig_INIT;
/* Set coerce_c_locale and utf8_mode to not depend on the locale */
preconfig.coerce_c_locale = 0;
preconfig.utf8_mode = 0;
err = _Py_PreInitialize(&preconfig);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
/* Test _PyCoreConfig.isolated=1 */
_PyCoreConfig config = _PyCoreConfig_INIT;
Py_IsolatedFlag = 0;
config.isolated = 1;
/* Use path starting with "./" avoids a search along the PATH */
config.program_name = L"./_testembed";
test_init_env_dev_mode_putenvs();
err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
return 0;
}
/* _PyPreConfig.isolated=1, _PyCoreConfig.isolated=0 */
static int test_preinit_isolated1(void)
{
_PyInitError err;
_PyPreConfig preconfig = _PyPreConfig_INIT;
/* Set coerce_c_locale and utf8_mode to not depend on the locale */
preconfig.coerce_c_locale = 0;
preconfig.utf8_mode = 0;
preconfig.isolated = 1;
err = _Py_PreInitialize(&preconfig);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
_PyCoreConfig config = _PyCoreConfig_INIT;
config.program_name = L"./_testembed";
test_init_env_dev_mode_putenvs();
err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
return 0;
}
/* _PyPreConfig.isolated=0, _PyCoreConfig.isolated=1 */
static int test_preinit_isolated2(void)
{
_PyInitError err;
_PyPreConfig preconfig = _PyPreConfig_INIT;
/* Set coerce_c_locale and utf8_mode to not depend on the locale */
preconfig.coerce_c_locale = 0;
preconfig.utf8_mode = 0;
preconfig.isolated = 0;
err = _Py_PreInitialize(&preconfig);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
/* Test _PyCoreConfig.isolated=1 */
_PyCoreConfig config = _PyCoreConfig_INIT;
Py_IsolatedFlag = 0;
config.isolated = 1;
/* Use path starting with "./" avoids a search along the PATH */
config.program_name = L"./_testembed";
test_init_env_dev_mode_putenvs();
err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
return 0;
}
static int test_init_dev_mode(void)
{
_PyCoreConfig config = _PyCoreConfig_INIT;
putenv("PYTHONFAULTHANDLER=");
putenv("PYTHONMALLOC=");
config.dev_mode = 1;
config.program_name = L"./_testembed";
_PyInitError err = _Py_InitializeFromConfig(&config);
if (_Py_INIT_FAILED(err)) {
_Py_ExitInitError(err);
}
dump_config();
Py_Finalize();
return 0;
}
/* *********************************************************
* List of test cases and the function that implements it.
*
* Names are compared case-sensitively with the first
* argument. If no match is found, or no first argument was
* provided, the names of all test cases are printed and
* the exit code will be -1.
*
* The int returned from test functions is used as the exit
* code, and test_capi treats all non-zero exit codes as a
* failed test.
*********************************************************/
struct TestCase
{
const char *name;
int (*func)(void);
};
static struct TestCase TestCases[] = {
{ "forced_io_encoding", test_forced_io_encoding },
{ "repeated_init_and_subinterpreters", test_repeated_init_and_subinterpreters },
{ "pre_initialization_api", test_pre_initialization_api },
{ "pre_initialization_sys_options", test_pre_initialization_sys_options },
{ "bpo20891", test_bpo20891 },
{ "initialize_twice", test_initialize_twice },
{ "initialize_pymain", test_initialize_pymain },
{ "init_default_config", test_init_default_config },
{ "init_global_config", test_init_global_config },
{ "init_from_config", test_init_from_config },
{ "init_env", test_init_env },
{ "init_env_dev_mode", test_init_env_dev_mode },
{ "init_env_dev_mode_alloc", test_init_env_dev_mode_alloc },
{ "init_dev_mode", test_init_dev_mode },
{ "init_isolated", test_init_isolated },
{ "preinit_isolated1", test_preinit_isolated1 },
{ "preinit_isolated2", test_preinit_isolated2 },
{ NULL, NULL }
};
int main(int argc, char *argv[])
{
if (argc > 1) {
for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
if (strcmp(argv[1], tc->name) == 0)
return (*tc->func)();
}
}
/* No match found, or no test name provided, so display usage */
printf("Python " PY_VERSION " _testembed executable for embedded interpreter tests\n"
"Normally executed via 'EmbeddingTests' in Lib/test/test_embed.py\n\n"
"Usage: %s TESTNAME\n\nAll available tests:\n", argv[0]);
for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
printf(" %s\n", tc->name);
}
/* Non-zero exit code will cause test_embed.py tests to fail.
This is intentional. */
return -1;
}