2 * Copyright (C) 2015 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
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11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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26 #ifndef InspectorHeapAgent_h
27 #define InspectorHeapAgent_h
29 #include "HeapSnapshot.h"
30 #include "InspectorBackendDispatchers.h"
31 #include "InspectorFrontendDispatchers.h"
32 #include "heap/HeapObserver.h"
33 #include "inspector/InspectorAgentBase.h"
34 #include <wtf/Forward.h>
35 #include <wtf/Noncopyable.h>
39 typedef String ErrorString;
41 class JS_EXPORT_PRIVATE InspectorHeapAgent final : public InspectorAgentBase, public HeapBackendDispatcherHandler, public JSC::HeapObserver {
42 WTF_MAKE_NONCOPYABLE(InspectorHeapAgent);
44 InspectorHeapAgent(AgentContext&);
45 virtual ~InspectorHeapAgent();
47 void didCreateFrontendAndBackend(FrontendRouter*, BackendDispatcher*) override;
48 void willDestroyFrontendAndBackend(DisconnectReason) override;
50 // HeapBackendDispatcherHandler
51 void enable(ErrorString&) override;
52 void disable(ErrorString&) override;
53 void gc(ErrorString&) override;
54 void snapshot(ErrorString&, double* timestamp, String* snapshotData) override;
55 void startTracking(ErrorString&) override;
56 void stopTracking(ErrorString&) override;
59 void willGarbageCollect() override;
60 void didGarbageCollect(JSC::HeapOperation) override;
63 void clearHeapSnapshots();
65 std::unique_ptr<HeapFrontendDispatcher> m_frontendDispatcher;
66 RefPtr<HeapBackendDispatcher> m_backendDispatcher;
67 InspectorEnvironment& m_environment;
69 bool m_enabled { false };
70 bool m_tracking { false };
71 double m_gcStartTime { NAN };
74 } // namespace Inspector
76 #endif // InspectorHeapAgent_h