/* * Copyright (C) 2007 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include "Timer.h" #include <JavaScriptCore/DeleteAllCodeEffort.h> #include <wtf/Forward.h> #include <wtf/Noncopyable.h> namespace WebCore { class GCController { WTF_MAKE_FAST_ALLOCATED; WTF_MAKE_NONCOPYABLE(GCController); friend class WTF::NeverDestroyed<GCController>; public: WEBCORE_EXPORT static GCController& singleton(); WEBCORE_EXPORT void garbageCollectSoon(); WEBCORE_EXPORT void garbageCollectNow(); // It's better to call garbageCollectSoon, unless you have a specific reason not to. WEBCORE_EXPORT void garbageCollectNowIfNotDoneRecently(); void garbageCollectOnNextRunLoop(); WEBCORE_EXPORT void garbageCollectOnAlternateThreadForDebugging(bool waitUntilDone); // Used for stress testing. WEBCORE_EXPORT void setJavaScriptGarbageCollectorTimerEnabled(bool); WEBCORE_EXPORT void deleteAllCode(JSC::DeleteAllCodeEffort); WEBCORE_EXPORT void deleteAllLinkedCode(JSC::DeleteAllCodeEffort); private: GCController(); // Use singleton() instead. void dumpHeap(); void gcTimerFired(); Timer m_GCTimer; }; } // namespace WebCore