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      1 /*
      2  * Copyright (C) 2010 Apple Inc. All rights reserved.
      3  * Copyright (C) 2010 Google Inc. All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions
      7  * are met:
      8  *
      9  * 1.  Redistributions of source code must retain the above copyright
     10  *     notice, this list of conditions and the following disclaimer.
     11  * 2.  Redistributions in binary form must reproduce the above copyright
     12  *     notice, this list of conditions and the following disclaimer in the
     13  *     documentation and/or other materials provided with the distribution.
     14  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
     15  *     its contributors may be used to endorse or promote products derived
     16  *     from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     19  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     20  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     21  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     22  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     25  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef InspectorProfilerAgent_h
     31 #define InspectorProfilerAgent_h
     32 
     33 #include "InspectorFrontend.h"
     34 #include "core/inspector/InspectorBaseAgent.h"
     35 #include "wtf/Forward.h"
     36 #include "wtf/HashMap.h"
     37 #include "wtf/Noncopyable.h"
     38 #include "wtf/PassOwnPtr.h"
     39 #include "wtf/text/WTFString.h"
     40 
     41 namespace WebCore {
     42 
     43 class InjectedScriptManager;
     44 class InspectorFrontend;
     45 class InspectorOverlay;
     46 class InstrumentingAgents;
     47 class ScriptCallStack;
     48 class ScriptProfile;
     49 class ScriptState;
     50 
     51 typedef String ErrorString;
     52 
     53 class InspectorProfilerAgent : public InspectorBaseAgent<InspectorProfilerAgent>, public InspectorBackendDispatcher::ProfilerCommandHandler {
     54     WTF_MAKE_NONCOPYABLE(InspectorProfilerAgent); WTF_MAKE_FAST_ALLOCATED;
     55 public:
     56     static PassOwnPtr<InspectorProfilerAgent> create(InstrumentingAgents*, InspectorCompositeState*, InjectedScriptManager*, InspectorOverlay*);
     57     virtual ~InspectorProfilerAgent();
     58 
     59     void consoleProfile(const String& title, ScriptState*);
     60     void consoleProfileEnd(const String& title);
     61 
     62     virtual void enable(ErrorString*);
     63     virtual void disable(ErrorString*);
     64     virtual void setSamplingInterval(ErrorString*, int);
     65     virtual void start(ErrorString* = 0);
     66     virtual void stop(ErrorString*, RefPtr<TypeBuilder::Profiler::CPUProfile>&);
     67 
     68     virtual void setFrontend(InspectorFrontend*);
     69     virtual void clearFrontend();
     70     virtual void restore();
     71 
     72     void willProcessTask();
     73     void didProcessTask();
     74     void willEnterNestedRunLoop();
     75     void didLeaveNestedRunLoop();
     76 
     77 private:
     78     InspectorProfilerAgent(InstrumentingAgents*, InspectorCompositeState*, InjectedScriptManager*, InspectorOverlay*);
     79     bool enabled();
     80     void doEnable();
     81     void stop(ErrorString*, RefPtr<TypeBuilder::Profiler::CPUProfile>*);
     82 
     83     InjectedScriptManager* m_injectedScriptManager;
     84     InspectorFrontend::Profiler* m_frontend;
     85     // This is a temporary workaround to make sure v8 doesn't stop profiling when
     86     // last finished profile is deleted (we keep at least one finished profile alive).
     87     RefPtr<ScriptProfile> m_keepAliveProfile;
     88     bool m_recordingCPUProfile;
     89     int m_nextProfileId;
     90     class ProfileDescriptor;
     91     Vector<ProfileDescriptor> m_startedProfiles;
     92     String m_frontendInitiatedProfileId;
     93 
     94     typedef HashMap<String, double> ProfileNameIdleTimeMap;
     95     ProfileNameIdleTimeMap* m_profileNameIdleTimeMap;
     96     double m_idleStartTime;
     97     InspectorOverlay* m_overlay;
     98 
     99     void idleStarted();
    100     void idleFinished();
    101 };
    102 
    103 } // namespace WebCore
    104 
    105 
    106 #endif // !defined(InspectorProfilerAgent_h)
    107