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Diffstat (limited to 'slideshow/source/engine/sp_debug.cxx')
-rw-r--r-- | slideshow/source/engine/sp_debug.cxx | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/slideshow/source/engine/sp_debug.cxx b/slideshow/source/engine/sp_debug.cxx deleted file mode 100644 index 25c5b2cff..000000000 --- a/slideshow/source/engine/sp_debug.cxx +++ /dev/null @@ -1,300 +0,0 @@ -/* -*- 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. - * - ************************************************************************/ - - -// MARKER(update_precomp.py): autogen include statement, do not remove -#include "precompiled_slideshow.hxx" -// -// sp_collector.cpp -// -// Copyright (c) 2002, 2003 Peter Dimov -// -// Permission to copy, use, modify, sell and distribute this software -// is granted provided this copyright notice appears in all copies. -// This software is provided "as is" without express or implied -// warranty, and with no claim as to its suitability for any purpose. -// - -#if defined(BOOST_SP_ENABLE_DEBUG_HOOKS) - -#include <boost/assert.hpp> -#include <boost/shared_ptr.hpp> -#include <boost/detail/lightweight_mutex.hpp> -#include <cstdlib> -#include <map> -#include <deque> -#include <iostream> - -typedef std::map< void const *, std::pair<void *, size_t> > map_type; - -static map_type & get_map() -{ - static map_type m; - return m; -} - -typedef boost::detail::lightweight_mutex mutex_type; - -static mutex_type & get_mutex() -{ - static mutex_type m; - return m; -} - -static void * init_mutex_before_main = &get_mutex(); - -namespace -{ - class X; - - struct count_layout - { - boost::detail::sp_counted_base * pi; - int id; - }; - - struct shared_ptr_layout - { - X * px; - count_layout pn; - }; -} - -// assume 4 byte alignment for pointers when scanning -size_t const pointer_align = 4; - -typedef std::map<void const *, long> map2_type; - -static void scan_and_count(void const * area, size_t size, map_type const & m, map2_type & m2) -{ - unsigned char const * p = static_cast<unsigned char const *>(area); - - for(size_t n = 0; n + sizeof(shared_ptr_layout) <= size; p += pointer_align, n += pointer_align) - { - shared_ptr_layout const * q = reinterpret_cast<shared_ptr_layout const *>(p); - - if(q->pn.id == boost::detail::shared_count_id && q->pn.pi != 0 && m.count(q->pn.pi) != 0) - { - ++m2[q->pn.pi]; - } - } -} - -typedef std::deque<void const *> open_type; - -static void scan_and_mark(void const * area, size_t size, map2_type & m2, open_type & open) -{ - unsigned char const * p = static_cast<unsigned char const *>(area); - - for(size_t n = 0; n + sizeof(shared_ptr_layout) <= size; p += pointer_align, n += pointer_align) - { - shared_ptr_layout const * q = reinterpret_cast<shared_ptr_layout const *>(p); - - if(q->pn.id == boost::detail::shared_count_id && q->pn.pi != 0 && m2.count(q->pn.pi) != 0) - { - open.push_back(q->pn.pi); - m2.erase(q->pn.pi); - } - } -} - -static void find_unreachable_objects_impl(map_type const & m, map2_type & m2) -{ - // scan objects for shared_ptr members, compute internal counts - - { - std::cout << "... " << m.size() << " objects in m.\n"; - - for(map_type::const_iterator i = m.begin(); i != m.end(); ++i) - { - BOOST_ASSERT(static_cast<boost::detail::sp_counted_base const *>(i->first)->use_count() != 0); // there should be no inactive counts in the map - - scan_and_count(i->second.first, i->second.second, m, m2); - } - - std::cout << "... " << m2.size() << " objects in m2.\n"; - } - - // mark reachable objects - - { - open_type open; - - for(map2_type::iterator i = m2.begin(); i != m2.end(); ++i) - { - boost::detail::sp_counted_base const * p = static_cast<boost::detail::sp_counted_base const *>(i->first); - if(p->use_count() != i->second) open.push_back(p); - } - - std::cout << "... " << m2.size() << " objects in open.\n"; - - for(open_type::iterator j = open.begin(); j != open.end(); ++j) - { - m2.erase(*j); - } - - while(!open.empty()) - { - void const * p = open.front(); - open.pop_front(); - - map_type::const_iterator i = m.find(p); - BOOST_ASSERT(i != m.end()); - - scan_and_mark(i->second.first, i->second.second, m2, open); - } - } - - // m2 now contains the unreachable objects -} - -std::size_t find_unreachable_objects(bool report) -{ - map2_type m2; - -#ifdef BOOST_HAS_THREADS - - // This will work without the #ifdef, but some compilers warn - // that lock is not referenced - - mutex_type::scoped_lock lock(get_mutex()); - -#endif - - map_type const & m = get_map(); - - find_unreachable_objects_impl(m, m2); - - if(report) - { - for(map2_type::iterator j = m2.begin(); j != m2.end(); ++j) - { - map_type::const_iterator i = m.find(j->first); - BOOST_ASSERT(i != m.end()); - std::cout << "Unreachable object at " << i->second.first << ", " << i->second.second << " bytes long.\n"; - } - } - - return m2.size(); -} - -typedef std::deque< boost::shared_ptr<X> > free_list_type; - -static void scan_and_free(void * area, size_t size, map2_type const & m2, free_list_type & free) -{ - unsigned char * p = static_cast<unsigned char *>(area); - - for(size_t n = 0; n + sizeof(shared_ptr_layout) <= size; p += pointer_align, n += pointer_align) - { - shared_ptr_layout * q = reinterpret_cast<shared_ptr_layout *>(p); - - if(q->pn.id == boost::detail::shared_count_id && q->pn.pi != 0 && m2.count(q->pn.pi) != 0 && q->px != 0) - { - boost::shared_ptr<X> * ppx = reinterpret_cast< boost::shared_ptr<X> * >(p); - free.push_back(*ppx); - ppx->reset(); - } - } -} - -void free_unreachable_objects() -{ - free_list_type free; - - { - map2_type m2; - -#ifdef BOOST_HAS_THREADS - - mutex_type::scoped_lock lock(get_mutex()); - -#endif - - map_type const & m = get_map(); - - find_unreachable_objects_impl(m, m2); - - for(map2_type::iterator j = m2.begin(); j != m2.end(); ++j) - { - map_type::const_iterator i = m.find(j->first); - BOOST_ASSERT(i != m.end()); - scan_and_free(i->second.first, i->second.second, m2, free); - } - } - - std::cout << "... about to free " << free.size() << " objects.\n"; -} - -// debug hooks - -namespace boost -{ - -void sp_scalar_constructor_hook(void *) -{ -} - -void sp_scalar_constructor_hook(void * px, std::size_t size, void * pn) -{ -#ifdef BOOST_HAS_THREADS - - mutex_type::scoped_lock lock(get_mutex()); - -#endif - - get_map()[pn] = std::make_pair(px, size); -} - -void sp_scalar_destructor_hook(void *) -{ -} - -void sp_scalar_destructor_hook(void *, std::size_t, void * pn) -{ -#ifdef BOOST_HAS_THREADS - - mutex_type::scoped_lock lock(get_mutex()); - -#endif - - get_map().erase(pn); -} - -void sp_array_constructor_hook(void *) -{ -} - -void sp_array_destructor_hook(void *) -{ -} - -} // namespace boost - -#endif // defined(BOOST_SP_ENABLE_DEBUG_HOOKS) - -/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |