Changeset 65841 in vbox

Timestamp:

Feb 22, 2017 4:49:54 PM (8 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

113609

Message:

PyXPCOM/PyGBase.cpp: experimental deadlock workaround

File:

• trunk/src/libs/xpcom18a4/python/src/PyGBase.cpp (modified) (1 diff)

trunk/src/libs/xpcom18a4/python/src/PyGBase.cpp

@@ -288 +288 @@
                 piswrap = pis;
         } else {
+                /* HACK ALERT! Dropping the python interpreter lock here while
+                   doing QueryInterface because it may involve IPC to a python
+                   object in the same interpreter and deadlock.  Not at all
+                   sure if this is a good idea or not for the internal PyXPCOM
+                   state, but it might fix the deadloock... Hoping for the best. */
+                Py_BEGIN_ALLOW_THREADS();
                 iid_check = NS_GET_IID(nsISupports);
                 pis->QueryInterface(iid_check, getter_AddRefs(piswrap));
+                Py_END_ALLOW_THREADS();
         }