Changeset 673d7e3 for python/ext

Timestamp:

Jun 29, 2019, 12:42:36 PM (6 years ago)

Author:

Paul Brossier <piem@piem.org>

Branches:

feature/autosink, feature/cnn, feature/crepe, feature/crepe_org, feature/timestretch, fix/ffmpeg5, master

Children:

843b22f

Parents:

841ceed

Message:

[py] fix reference counting of exception types (thanks @wackou)

Commit 8bfef30 exposed a reference counting error, causing the
interpreter to crash before exiting. The solution is to incref the
exception type before calling PyErr_Restore.

File:

• python/ext/py-filter.c (modified) (3 diffs)

python/ext/py-filter.c

@@ -164 +164 @@
       PyObject *type, *value, *traceback;
       PyErr_Fetch(&type, &value, &traceback);
-      PyErr_Restore(PyExc_ValueError, value, traceback);
+      Py_XDECREF(type);
+      type = PyExc_ValueError;
+      Py_XINCREF(type);
+      PyErr_Restore(type, value, traceback);
     }
     return NULL;
@@ -189 +192 @@
       PyObject *type, *value, *traceback;
       PyErr_Fetch(&type, &value, &traceback);
-      PyErr_Restore(PyExc_ValueError, value, traceback);
+      Py_XDECREF(type);
+      type = PyExc_ValueError;
+      Py_XINCREF(type);
+      PyErr_Restore(type, value, traceback);
     }
     return NULL;
@@ -214 +220 @@
       PyObject *type, *value, *traceback;
       PyErr_Fetch(&type, &value, &traceback);
-      PyErr_Restore(PyExc_ValueError, value, traceback);
+      Py_XDECREF(type);
+      type = PyExc_ValueError;
+      Py_XINCREF(type);
+      PyErr_Restore(type, value, traceback);
     }
     return NULL;