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refactor __del__ exception handler into PyErr_WriteUnraisable

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add sanity check to gc: if an exception occurs during GC, call
PyErr_WriteUnraisable and then call Py_FatalEror.
This commit is contained in:
Jeremy Hylton 2000-09-01 02:47:25 +00:00
parent b9ce5ada37
commit b709df3810
5 changed files with 50 additions and 21 deletions
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21
Objects/classobject.c
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@ -519,26 +519,7 @@ instance_dealloc(register PyInstanceObject *inst)
if ((del = instance_getattr2(inst, delstr)) != NULL) {
PyObject *res = PyEval_CallObject(del, (PyObject *)NULL);
if (res == NULL) {
PyObject *f, *t, *v, *tb;
PyErr_Fetch(&t, &v, &tb);
f = PySys_GetObject("stderr");
if (f != NULL) {
PyFile_WriteString("Exception ", f);
if (t) {
PyFile_WriteObject(t, f, Py_PRINT_RAW);
if (v && v != Py_None) {
PyFile_WriteString(": ", f);
PyFile_WriteObject(v, f, 0);
}
}
PyFile_WriteString(" in ", f);
PyFile_WriteObject(del, f, 0);
PyFile_WriteString(" ignored\n", f);
PyErr_Clear(); /* Just in case */
}
Py_XDECREF(t);
Py_XDECREF(v);
Py_XDECREF(tb);
PyErr_WriteUnraisable(del);
}
else
Py_DECREF(res);