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bpo-46417: Finalize structseq types at exit (GH-30645)

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Add _PyStructSequence_FiniType() and _PyStaticType_Dealloc()
functions to finalize a structseq static type in Py_Finalize().
Currrently, these functions do nothing if Python is built in release
mode.

Clear static types:

* AsyncGenHooksType: sys.set_asyncgen_hooks()
* FlagsType: sys.flags
* FloatInfoType: sys.float_info
* Hash_InfoType: sys.hash_info
* Int_InfoType: sys.int_info
* ThreadInfoType: sys.thread_info
* UnraisableHookArgsType: sys.unraisablehook
* VersionInfoType: sys.version
* WindowsVersionType: sys.getwindowsversion()
This commit is contained in:
Victor Stinner 2022-01-21 01:42:25 +01:00 • committed by GitHub
parent 27df7566bc
commit e9e3eab0b8
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GPG key ID: 4AEE18F83AFDEB23
17 changed files with 230 additions and 2 deletions
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40
Programs/_testembed.c
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@ -15,12 +15,18 @@
#include <stdlib.h> // putenv()
#include <wchar.h>
int main_argc;
char **main_argv;
/*********************************************************
* Embedded interpreter tests that need a custom exe
*
* Executed via 'EmbeddingTests' in Lib/test/test_capi.py
*********************************************************/
// Use to display the usage
#define PROGRAM "test_embed"
/* Use path starting with "./" avoids a search along the PATH */
#define PROGRAM_NAME L"./_testembed"
@ -113,6 +119,36 @@ PyInit_embedded_ext(void)
return PyModule_Create(&embedded_ext);
}
/****************************************************************************
* Call Py_Initialize()/Py_Finalize() multiple times and execute Python code
***************************************************************************/
// Used by bpo-46417 to test that structseq types used by the sys module are
// cleared properly and initialized again properly when Python is finalized
// multiple times.
static int test_repeated_init_exec(void)
{
if (main_argc < 3) {
fprintf(stderr, "usage: %s test_repeated_init_exec CODE\n", PROGRAM);
exit(1);
}
const char *code = main_argv[2];
for (int i=1; i <= INIT_LOOPS; i++) {
fprintf(stderr, "--- Loop #%d ---\n", i);
fflush(stderr);
_testembed_Py_Initialize();
int err = PyRun_SimpleString(code);
Py_Finalize();
if (err) {
return 1;
}
}
return 0;
}
/*****************************************************
* Test forcing a particular IO encoding
*****************************************************/
@ -1880,6 +1916,7 @@ struct TestCase
static struct TestCase TestCases[] = {
// Python initialization
{"test_repeated_init_exec", test_repeated_init_exec},
{"test_forced_io_encoding", test_forced_io_encoding},
{"test_repeated_init_and_subinterpreters", test_repeated_init_and_subinterpreters},
{"test_repeated_init_and_inittab", test_repeated_init_and_inittab},
@ -1946,6 +1983,9 @@ static struct TestCase TestCases[] = {
int main(int argc, char *argv[])
{
main_argc = argc;
main_argv = argv;
if (argc > 1) {
for (struct TestCase *tc = TestCases; tc && tc->name; tc++) {
if (strcmp(argv[1], tc->name) == 0)