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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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 "sal/config.h"
#include "rtl/ref.hxx"
#include "salhelper/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 salhelper::Thread {
public:
GCThread( PyInterpreterState *interpreter, PyObject * object );
private:
virtual ~GCThread() {}
virtual void execute();
PyObject *mPyObject;
PyInterpreterState *mPyInterpreter;
};
GCThread::GCThread( PyInterpreterState *interpreter, PyObject * object ) :
Thread( "pyunoGCThread" ), mPyObject( object ),
mPyInterpreter( interpreter )
{}
void GCThread::execute()
{
// 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( const 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 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
rtl::Reference< GCThread >(new GCThread(interpreter, object))->launch();
//TODO: a protocol is missing how to join with the launched thread
// before exit(3), to ensure the thread is no longer relying on any
// infrastructure while that infrastructure is being shut down in
// atexit handlers
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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