1 files changed, 117 insertions, 0 deletions
diff --git a/pyuno/source/module/pyuno_gc.cxx b/pyuno/source/module/pyuno_gc.cxx
new file mode 100644
index 000000000000..aafefd368a4f
--- /dev/null
+++ b/pyuno/source/module/pyuno_gc.cxx
@@ -0,0 +1,117 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+#include <pyuno_impl.hxx>
+#include <osl/thread.hxx>
+namespace pyuno
+{
+
+bool g_destructorsOfStaticObjectsHaveBeenCalled;
+class StaticDestructorGuard
+{
+public:
+    ~StaticDestructorGuard()
+    {
+        g_destructorsOfStaticObjectsHaveBeenCalled = true;
+    }
+};
+StaticDestructorGuard guard;
+
+static bool isAfterUnloadOrPy_Finalize()
+{
+    return g_destructorsOfStaticObjectsHaveBeenCalled ||
+        !Py_IsInitialized();
+}
+
+class GCThread : public ::osl::Thread
+{
+    PyObject *mPyObject;
+    PyInterpreterState *mPyInterpreter;
+    GCThread( const GCThread & ); // not implemented
+    GCThread &operator =( const GCThread & ); // not implemented
+
+public:
+    GCThread( PyInterpreterState *interpreter, PyObject * object );
+    virtual void SAL_CALL run();
+    virtual void SAL_CALL onTerminated();
+};
+
+
+GCThread::GCThread( PyInterpreterState *interpreter, PyObject * object ) :
+    mPyObject( object ), mPyInterpreter( interpreter )
+{}
+
+void GCThread::run()
+{
+    //  otherwise we crash here, when main has been left already
+    if( isAfterUnloadOrPy_Finalize() )
+        return;
+    try
+    {
+        PyThreadAttach g( (PyInterpreterState*)mPyInterpreter );
+        {
+            Runtime runtime;
+
+            // remove the reference from the pythonobject2adapter map
+            PyRef2Adapter::iterator ii =
+                runtime.getImpl()->cargo->mappedObjects.find( mPyObject );
+            if( ii != runtime.getImpl()->cargo->mappedObjects.end() )
+            {
+                runtime.getImpl()->cargo->mappedObjects.erase( ii );
+            }
+
+            Py_XDECREF( mPyObject );
+        }
+    }
+    catch( com::sun::star::uno::RuntimeException & e )
+    {
+        rtl::OString msg;
+        msg = rtl::OUStringToOString( e.Message, RTL_TEXTENCODING_ASCII_US );
+        fprintf( stderr, "Leaking python objects bridged to UNO for reason %s\n",msg.getStr());
+    }
+}
+
+
+void GCThread::onTerminated()
+{
+    delete this;
+}
+
+void decreaseRefCount( PyInterpreterState *interpreter, PyObject *object )
+{
+    //  otherwise we crash in the last after main ...
+    if( isAfterUnloadOrPy_Finalize() )
+        return;
+
+    // delegate to a new thread, because there does not seem
+    // to be a method, which tells, whether the global
+    // interpreter lock is held or not
+    // TODO: Look for a more efficient solution
+    osl::Thread *t = new GCThread( interpreter, object );
+    t->create();
+}
+
+}