/* * Copyright (C) 2016 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. AND ITS CONTRIBUTORS ``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 ITS 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. */ #ifndef InspectorMemoryAgent_h #define InspectorMemoryAgent_h #if ENABLE(RESOURCE_USAGE) #include "InspectorWebAgentBase.h" #include "MemoryPressureHandler.h" #include "ResourceUsageData.h" #include <inspector/InspectorBackendDispatchers.h> #include <inspector/InspectorFrontendDispatchers.h> namespace WebCore { typedef String ErrorString; class InspectorMemoryAgent final : public InspectorAgentBase, public Inspector::MemoryBackendDispatcherHandler { WTF_MAKE_NONCOPYABLE(InspectorMemoryAgent); WTF_MAKE_FAST_ALLOCATED; public: InspectorMemoryAgent(PageAgentContext&); virtual ~InspectorMemoryAgent() { } void didCreateFrontendAndBackend(Inspector::FrontendRouter*, Inspector::BackendDispatcher*) override; void willDestroyFrontendAndBackend(Inspector::DisconnectReason) override; // MemoryBackendDispatcherHandler void enable(ErrorString&) override; void disable(ErrorString&) override; void startTracking(ErrorString&) override; void stopTracking(ErrorString&) override; // InspectorInstrumentation void didHandleMemoryPressure(Critical); private: void collectSample(const ResourceUsageData&); std::unique_ptr<Inspector::MemoryFrontendDispatcher> m_frontendDispatcher; RefPtr<Inspector::MemoryBackendDispatcher> m_backendDispatcher; bool m_enabled { false }; bool m_tracking { false }; }; } // namespace WebCore #endif // ENABLE(RESOURCE_USAGE) #endif // !defined(InspectorMemoryAgent_h)