124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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#include "pyuno_impl.hxx"
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#include "sal/config.h"
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#include "rtl/ref.hxx"
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#include "salhelper/thread.hxx"
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namespace pyuno
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{
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bool g_destructorsOfStaticObjectsHaveBeenCalled;
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class StaticDestructorGuard
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{
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public:
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~StaticDestructorGuard()
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{
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g_destructorsOfStaticObjectsHaveBeenCalled = true;
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}
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};
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StaticDestructorGuard guard;
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static bool isAfterUnloadOrPy_Finalize()
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{
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return g_destructorsOfStaticObjectsHaveBeenCalled ||
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!Py_IsInitialized();
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}
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class GCThread: public salhelper::Thread {
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public:
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GCThread( PyInterpreterState *interpreter, PyObject * object );
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private:
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virtual ~GCThread() {}
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virtual void execute();
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PyObject *mPyObject;
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PyInterpreterState *mPyInterpreter;
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};
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GCThread::GCThread( PyInterpreterState *interpreter, PyObject * object ) :
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Thread( "pyunoGCThread" ), mPyObject( object ),
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mPyInterpreter( interpreter )
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{}
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void GCThread::execute()
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{
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// otherwise we crash here, when main has been left already
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if( isAfterUnloadOrPy_Finalize() )
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return;
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try
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{
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PyThreadAttach g( (PyInterpreterState*)mPyInterpreter );
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{
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Runtime runtime;
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// remove the reference from the pythonobject2adapter map
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PyRef2Adapter::iterator ii =
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runtime.getImpl()->cargo->mappedObjects.find( mPyObject );
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if( ii != runtime.getImpl()->cargo->mappedObjects.end() )
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{
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runtime.getImpl()->cargo->mappedObjects.erase( ii );
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}
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Py_XDECREF( mPyObject );
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}
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}
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catch( const com::sun::star::uno::RuntimeException & e )
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{
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rtl::OString msg;
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msg = rtl::OUStringToOString( e.Message, RTL_TEXTENCODING_ASCII_US );
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fprintf( stderr, "Leaking python objects bridged to UNO for reason %s\n",msg.getStr());
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}
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}
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void decreaseRefCount( PyInterpreterState *interpreter, PyObject *object )
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{
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// otherwise we crash in the last after main ...
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if( isAfterUnloadOrPy_Finalize() )
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return;
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// delegate to a new thread, because there does not seem
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// to be a method, which tells, whether the global
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// interpreter lock is held or not
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// TODO: Look for a more efficient solution
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rtl::Reference< GCThread >(new GCThread(interpreter, object))->launch();
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//TODO: a protocol is missing how to join with the launched thread
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// before exit(3), to ensure the thread is no longer relying on any
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// infrastructure while that infrastructure is being shut down in
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// atexit handlers
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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