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Issue #14173: Avoid crashing when reading a signal handler during interpreter shutdown.

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This commit is contained in:
Antoine Pitrou 2013-05-04 23:21:09 +02:00
commit 52c5f85cf9
2 changed files with 14 additions and 3 deletions
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14
Modules/signalmodule.c
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@ -339,7 +339,10 @@ signal_signal(PyObject *self, PyObject *args)
Handlers[sig_num].tripped = 0;
Py_INCREF(obj);
Handlers[sig_num].func = obj;
return old_handler;
if (old_handler != NULL)
return old_handler;
else
Py_RETURN_NONE;
}
PyDoc_STRVAR(signal_doc,
@ -367,8 +370,13 @@ signal_getsignal(PyObject *self, PyObject *args)
return NULL;
}
old_handler = Handlers[sig_num].func;
Py_INCREF(old_handler);
return old_handler;
if (old_handler != NULL) {
Py_INCREF(old_handler);
return old_handler;
}
else {
Py_RETURN_NONE;
}
}
PyDoc_STRVAR(getsignal_doc,