diff options
Diffstat (limited to 'Include/pythread.h')
| -rw-r--r-- | Include/pythread.h | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/Include/pythread.h b/Include/pythread.h index a3216c5..82247da 100644 --- a/Include/pythread.h +++ b/Include/pythread.h @@ -17,7 +17,26 @@ typedef enum PyLockStatus { PyAPI_FUNC(void) PyThread_init_thread(void); PyAPI_FUNC(unsigned long) PyThread_start_new_thread(void (*)(void *), void *); -PyAPI_FUNC(void) _Py_NO_RETURN PyThread_exit_thread(void); +/* Terminates the current thread. Considered unsafe. + * + * WARNING: This function is only safe to call if all functions in the full call + * stack are written to safely allow it. Additionally, the behavior is + * platform-dependent. This function should be avoided, and is no longer called + * by Python itself. It is retained only for compatibility with existing C + * extension code. + * + * With pthreads, calls `pthread_exit` causes some libcs (glibc?) to attempt to + * unwind the stack and call C++ destructors; if a `noexcept` function is + * reached, they may terminate the process. Others (macOS) do unwinding. + * + * On Windows, calls `_endthreadex` which kills the thread without calling C++ + * destructors. + * + * In either case there is a risk of invalid references remaining to data on the + * thread stack. + */ +Py_DEPRECATED(3.14) PyAPI_FUNC(void) _Py_NO_RETURN PyThread_exit_thread(void); + PyAPI_FUNC(unsigned long) PyThread_get_thread_ident(void); #if (defined(__APPLE__) || defined(__linux__) || defined(_WIN32) \ |