1 /* 2 * Copyright (c) 2010, Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef ScriptProfiler_h 32 #define ScriptProfiler_h 33 34 #include "bindings/v8/ScriptHeapSnapshot.h" 35 #include "bindings/v8/ScriptState.h" 36 #include "core/inspector/ScriptProfile.h" 37 38 #include "wtf/Forward.h" 39 #include "wtf/PassRefPtr.h" 40 #include "wtf/text/WTFString.h" 41 42 namespace WebCore { 43 44 class ExternalArrayVisitor; 45 class ExternalStringVisitor; 46 class WrappedNodeVisitor; 47 class Page; 48 class ScriptObject; 49 class ScriptValue; 50 class WorkerGlobalScope; 51 52 class ScriptProfiler { 53 WTF_MAKE_NONCOPYABLE(ScriptProfiler); 54 public: 55 class HeapSnapshotProgress { 56 public: ~HeapSnapshotProgress()57 virtual ~HeapSnapshotProgress() { } 58 virtual void Start(int totalWork) = 0; 59 virtual void Worked(int workDone) = 0; 60 virtual void Done() = 0; 61 virtual bool isCanceled() = 0; 62 }; 63 64 class OutputStream { 65 public: ~OutputStream()66 virtual ~OutputStream() { } 67 virtual void write(const uint32_t* chunk, const int size) = 0; 68 }; 69 70 static void collectGarbage(); 71 static ScriptObject objectByHeapObjectId(unsigned id); 72 static unsigned getHeapObjectId(const ScriptValue&); 73 static void setSamplingInterval(int intervalUs); 74 static void start(const String& title); 75 static PassRefPtr<ScriptProfile> stop(const String& title); 76 static PassRefPtr<ScriptHeapSnapshot> takeHeapSnapshot(const String& title, HeapSnapshotProgress*); 77 static void startTrackingHeapObjects(); 78 static void stopTrackingHeapObjects(); 79 static unsigned requestHeapStatsUpdate(OutputStream*); 80 static void initialize(); 81 static void visitNodeWrappers(WrappedNodeVisitor*); 82 static HashMap<String, double>* currentProfileNameIdleTimeMap(); 83 static void setIdle(bool isIdle); 84 }; 85 86 } // namespace WebCore 87 88 #endif // ScriptProfiler_h 89