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authorNeal Norwitz <nnorwitz@gmail.com>2006-11-21 05:29:34 (GMT)
committerNeal Norwitz <nnorwitz@gmail.com>2006-11-21 05:29:34 (GMT)
commit5890a6a8a68eb5658b7002501ec30e2e30eba144 (patch)
treed1291b4caabb196a7cd1b3eb0eb950ea9f60a2fb
parentbb4e6dcff51ea03a762f12a1e9c1fbdcfcdbbe38 (diff)
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Backport of 52811:
Bug #1599782: Fix segfault on bsddb.db.DB().type(). The problem is that _DB_get_type() can't be called without the GIL because it calls a bunch of PyErr_* APIs when an error occurs. There were no other cases in this file that it was called without the GIL. Removing the BEGIN/END THREAD around _DB_get_type() made everything work.
-rw-r--r--Lib/bsddb/test/test_dbobj.py4
-rw-r--r--Misc/NEWS2
-rw-r--r--Modules/_bsddb.c2
3 files changed, 6 insertions, 2 deletions
diff --git a/Lib/bsddb/test/test_dbobj.py b/Lib/bsddb/test/test_dbobj.py
index 6799fc9..af494e1 100644
--- a/Lib/bsddb/test/test_dbobj.py
+++ b/Lib/bsddb/test/test_dbobj.py
@@ -69,6 +69,10 @@ class dbobjTestCase(unittest.TestCase):
self.db.close()
self.env.close()
+ def test03_dbobj_type_before_open(self):
+ # Ensure this doesn't cause a segfault.
+ self.assertRaises(db.DBInvalidArgError, db.DB().type)
+
#----------------------------------------------------------------------
def test_suite():
diff --git a/Misc/NEWS b/Misc/NEWS
index 28543f6..231004d 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -276,6 +276,8 @@ Library
Extension Modules
-----------------
+- Bug #1599782: fix segfault on bsddb.db.DB().type().
+
- Fix bugs in ctypes:
- anonymous structure fields that have a bit-width specified did not work
- cast function did not accept c_char_p or c_wchar_p instances as first arg
diff --git a/Modules/_bsddb.c b/Modules/_bsddb.c
index 9d56e27..8e343a6 100644
--- a/Modules/_bsddb.c
+++ b/Modules/_bsddb.c
@@ -1779,9 +1779,7 @@ DB_get_type(DBObject* self, PyObject* args)
return NULL;
CHECK_DB_NOT_CLOSED(self);
- MYDB_BEGIN_ALLOW_THREADS;
type = _DB_get_type(self);
- MYDB_END_ALLOW_THREADS;
if (type == -1)
return NULL;
return PyInt_FromLong(type);