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bpo-41713: Remove PyOS_InitInterrupts() function (GH-23342)
Remove the undocumented PyOS_InitInterrupts() C function. * Rename PyOS_InitInterrupts() to _PySignal_Init(). It now installs other signal handlers, not only SIGINT. * Rename PyOS_FiniInterrupts() to _PySignal_Fini()
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@ -583,3 +583,8 @@ Removed
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``Py_END_ALLOW_RECURSION`` and the ``recursion_critical`` field of the
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:c:type:`PyInterpreterState` structure.
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(Contributed by Serhiy Storchaka in :issue:`41936`.)
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* Removed the undocumented ``PyOS_InitInterrupts()`` function. Initializing
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Python already implicitly installs signal handlers: see
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:c:member:`PyConfig.install_signal_handlers`.
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(Contributed by Victor Stinner in :issue:`41713`.)
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@ -68,7 +68,8 @@ extern void _PyFloat_Fini(PyThreadState *tstate);
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extern void _PySlice_Fini(PyThreadState *tstate);
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extern void _PyAsyncGen_Fini(PyThreadState *tstate);
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extern void PyOS_FiniInterrupts(void);
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extern int _PySignal_Init(int install_signal_handlers);
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extern void _PySignal_Fini(void);
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extern void _PyExc_Fini(PyThreadState *tstate);
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extern void _PyImport_Fini(void);
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@ -5,7 +5,6 @@ extern "C" {
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#endif
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PyAPI_FUNC(int) PyOS_InterruptOccurred(void);
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PyAPI_FUNC(void) PyOS_InitInterrupts(void);
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#ifdef HAVE_FORK
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#if !defined(Py_LIMITED_API) || Py_LIMITED_API+0 >= 0x03070000
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PyAPI_FUNC(void) PyOS_BeforeFork(void);
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@ -0,0 +1,3 @@
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Removed the undocumented ``PyOS_InitInterrupts()`` function. Initializing
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Python already implicitly installs signal handlers: see
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:c:member:`PyConfig.install_signal_handlers`. Patch by Victor Stinner.
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@ -1674,8 +1674,8 @@ PyInit__signal(void)
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}
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static void
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finisignal(void)
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void
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_PySignal_Fini(void)
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{
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int i;
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PyObject *func;
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@ -1792,19 +1792,32 @@ PyErr_SetInterrupt(void)
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}
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}
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void
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PyOS_InitInterrupts(void)
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int
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_PySignal_Init(int install_signal_handlers)
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{
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PyObject *m = PyImport_ImportModule("_signal");
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if (m) {
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Py_DECREF(m);
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if (!install_signal_handlers) {
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// Nothing to do
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return 0;
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}
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}
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void
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PyOS_FiniInterrupts(void)
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{
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finisignal();
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#ifdef SIGPIPE
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PyOS_setsig(SIGPIPE, SIG_IGN);
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#endif
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#ifdef SIGXFZ
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PyOS_setsig(SIGXFZ, SIG_IGN);
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#endif
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#ifdef SIGXFSZ
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PyOS_setsig(SIGXFSZ, SIG_IGN);
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#endif
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// Import _signal to install the Python SIGINT handler
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PyObject *module = PyImport_ImportModule("_signal");
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if (!module) {
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return -1;
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}
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Py_DECREF(module);
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return 0;
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}
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@ -54,7 +54,6 @@ static PyStatus add_main_module(PyInterpreterState *interp);
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static PyStatus init_import_site(void);
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static PyStatus init_set_builtins_open(void);
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static PyStatus init_sys_streams(PyThreadState *tstate);
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static PyStatus init_signals(PyThreadState *tstate);
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static void call_py_exitfuncs(PyThreadState *tstate);
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static void wait_for_thread_shutdown(PyThreadState *tstate);
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static void call_ll_exitfuncs(_PyRuntimeState *runtime);
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@ -1047,11 +1046,8 @@ init_interp_main(PyThreadState *tstate)
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}
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if (is_main_interp) {
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if (config->install_signal_handlers) {
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status = init_signals(tstate);
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if (_PyStatus_EXCEPTION(status)) {
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return status;
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}
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if (_PySignal_Init(config->install_signal_handlers) < 0) {
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return _PyStatus_ERR("can't initialize signals");
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}
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if (_PyTraceMalloc_Init(config->tracemalloc) < 0) {
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@ -1702,7 +1698,7 @@ Py_FinalizeEx(void)
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}
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/* Disable signal handling */
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PyOS_FiniInterrupts();
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_PySignal_Fini();
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/* Collect garbage. This may call finalizers; it's nice to call these
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* before all modules are destroyed.
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@ -2730,25 +2726,6 @@ Py_Exit(int sts)
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exit(sts);
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}
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static PyStatus
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init_signals(PyThreadState *tstate)
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{
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#ifdef SIGPIPE
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PyOS_setsig(SIGPIPE, SIG_IGN);
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#endif
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#ifdef SIGXFZ
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PyOS_setsig(SIGXFZ, SIG_IGN);
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#endif
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#ifdef SIGXFSZ
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PyOS_setsig(SIGXFSZ, SIG_IGN);
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#endif
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PyOS_InitInterrupts(); /* May imply init_signals() */
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if (_PyErr_Occurred(tstate)) {
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return _PyStatus_ERR("can't import signal");
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}
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return _PyStatus_OK();
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}
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/* Restore signals that the interpreter has called SIG_IGN on to SIG_DFL.
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*
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