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/core/v8/ScriptHeapSnapshot.h" 35 #include "core/inspector/ScriptProfile.h" 36 37 #include "wtf/Forward.h" 38 #include "wtf/PassRefPtr.h" 39 #include "wtf/text/WTFString.h" 40 41 namespace blink { 42 43 class ExternalStringVisitor; 44 class WrappedNodeVisitor; 45 class Page; 46 class ScriptValue; 47 class WorkerGlobalScope; 48 49 class ScriptProfiler { 50 WTF_MAKE_NONCOPYABLE(ScriptProfiler); 51 public: 52 class HeapSnapshotProgress { 53 public: 54 virtual ~HeapSnapshotProgress() { } 55 virtual void Start(int totalWork) = 0; 56 virtual void Worked(int workDone) = 0; 57 virtual void Done() = 0; 58 virtual bool isCanceled() = 0; 59 }; 60 61 class OutputStream { 62 public: 63 virtual ~OutputStream() { } 64 virtual void write(const uint32_t* chunk, const int size) = 0; 65 }; 66 67 static void collectGarbage(); 68 static ScriptValue objectByHeapObjectId(unsigned id); 69 static unsigned getHeapObjectId(const ScriptValue&); 70 static void clearHeapObjectIds(); 71 static void setSamplingInterval(int intervalUs); 72 static void start(const String& title); 73 static PassRefPtrWillBeRawPtr<ScriptProfile> stop(const String& title); 74 static PassRefPtr<ScriptHeapSnapshot> takeHeapSnapshot(const String& title, HeapSnapshotProgress*); 75 static void startTrackingHeapObjects(bool trackAllocations); 76 static void stopTrackingHeapObjects(); 77 static unsigned requestHeapStatsUpdate(OutputStream*); 78 static void initialize(); 79 static void visitNodeWrappers(WrappedNodeVisitor*); 80 static HashMap<String, double>* currentProfileNameIdleTimeMap(); 81 static void setIdle(bool isIdle); 82 }; 83 84 } // namespace blink 85 86 #endif // ScriptProfiler_h 87