// -*- c-basic-offset: 2 -*- /* * This file is part of the KDE libraries * Copyright (C) 1999-2000 Harri Porten (porten@kde.org) * Copyright (C) 2001 Peter Kelly (pmk@post.com) * Copyright (C) 2003 Apple Computer, Inc. * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * */ #ifndef KJSCOLLECTOR_H_ #define KJSCOLLECTOR_H_ #include "value.h" #include <wtf/HashCountedSet.h> #define KJS_MEM_LIMIT 210000 namespace KJS { /** * @short Garbage collector. */ class Collector { // disallow direct construction/destruction Collector(); public: static void* allocate(size_t s); static bool collect(); static size_t size(); static bool isOutOfMemory() { return memoryFull; } #ifdef KJS_DEBUG_MEM /** * Check that nothing is left when the last interpreter gets deleted */ static void finalCheck(); #endif static void protect(JSValue *); static void unprotect(JSValue *); static size_t numInterpreters(); static size_t numProtectedObjects(); static HashCountedSet<const char*>* rootObjectTypeCounts(); class Thread; static void registerThread(); private: static void markProtectedObjects(); static void markCurrentThreadConservatively(); static void markOtherThreadConservatively(Thread *thread); static void markStackObjectsConservatively(); static void markStackObjectsConservatively(void *start, void *end); static bool memoryFull; }; }; #endif /* _KJSCOLLECTOR_H_ */