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gh-109746: Make _thread.start_new_thread delete state of new thread on its startup failure (GH-109761)

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If Python fails to start newly created thread
due to failure of underlying PyThread_start_new_thread() call,
its state should be removed from interpreter' thread states list
to avoid its double cleanup.

Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
This commit is contained in:
Radislav Chugunov 2024-11-22 22:20:07 +03:00 • committed by GitHub
parent a264637654
commit ca3ea9ad05
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4 changed files with 39 additions and 1 deletions
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Modules/_threadmodule.c
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@ -421,6 +421,7 @@ ThreadHandle_start(ThreadHandle *self, PyObject *func, PyObject *args,
PyThread_handle_t os_handle;
if (PyThread_start_joinable_thread(thread_run, boot, &ident, &os_handle)) {
PyThreadState_Clear(boot->tstate);
PyThreadState_Delete(boot->tstate);
thread_bootstate_free(boot, 1);
PyErr_SetString(ThreadError, "can't start new thread");
goto start_failed;