profiler/ProfileNode.h

   1 /*
   2  * Copyright (C) 2008 Apple 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
   6  * are met:
   7  *
   8  * 1.  Redistributions of source code must retain the above copyright
   9  *     notice, this list of conditions and the following disclaimer.
  10  * 2.  Redistributions in binary form must reproduce the above copyright
  11  *     notice, this list of conditions and the following disclaimer in the
  12  *     documentation and/or other materials provided with the distribution.
  13  * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
  14  *     its contributors may be used to endorse or promote products derived
  15  *     from this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
  18  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  20  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
  21  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  22  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  23  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef ProfileNode_h
  30 #define ProfileNode_h
  31
  32 #include "CallIdentifier.h"
  33 #include <wtf/HashCountedSet.h>
  34 #include <wtf/RefCounted.h>
  35 #include <wtf/RefPtr.h>
  36 #include <wtf/Vector.h>
  37
  38 namespace JSC {
  39
  40     class ExecState;
  41     class ProfileNode;
  42
  43     typedef Vector<RefPtr<ProfileNode> >::const_iterator StackIterator;
  44     typedef HashCountedSet<StringImpl*> FunctionCallHashCount;
  45
  46     class ProfileNode : public RefCounted<ProfileNode> {
  47     public:
  48         static PassRefPtr<ProfileNode> create(ExecState* callerCallFrame, const CallIdentifier& callIdentifier, ProfileNode* headNode, ProfileNode* parentNode)
  49         {
  50             return adoptRef(new ProfileNode(callerCallFrame, callIdentifier, headNode, parentNode));
  51         }
  52         static PassRefPtr<ProfileNode> create(ExecState* callerCallFrame, ProfileNode* headNode, ProfileNode* node)
  53         {
  54             return adoptRef(new ProfileNode(callerCallFrame, headNode, node));
  55         }
  56
  57         bool operator==(ProfileNode* node) { return m_callIdentifier == node->callIdentifier(); }
  58
  59         ProfileNode* willExecute(ExecState* callerCallFrame, const CallIdentifier&);
  60         ProfileNode* didExecute();
  61
  62         void stopProfiling();
  63
  64         // CallIdentifier members
  65         ExecState* callerCallFrame() const { return m_callerCallFrame; }
  66         const CallIdentifier& callIdentifier() const { return m_callIdentifier; }
  67         const UString& functionName() const { return m_callIdentifier.m_name; }
  68         const UString& url() const { return m_callIdentifier.m_url; }
  69         unsigned lineNumber() const { return m_callIdentifier.m_lineNumber; }
  70
  71         // Relationships
  72         ProfileNode* head() const { return m_head; }
  73         void setHead(ProfileNode* head) { m_head = head; }
  74         ProfileNode* parent() const { return m_parent; }
  75         void setParent(ProfileNode* parent) { m_parent = parent; }
  76         ProfileNode* nextSibling() const { return m_nextSibling; }
  77         void setNextSibling(ProfileNode* nextSibling) { m_nextSibling = nextSibling; }
  78
  79         // Time members
  80         double startTime() const { return m_startTime; }
  81         void setStartTime(double startTime) { m_startTime = startTime; }
  82         double totalTime() const { return m_visibleTotalTime; }
  83         double actualTotalTime() const { return m_actualTotalTime; }
  84         void setTotalTime(double time) { m_actualTotalTime = time; m_visibleTotalTime = time; }
  85         void setActualTotalTime(double time) { m_actualTotalTime = time; }
  86         void setVisibleTotalTime(double time) { m_visibleTotalTime = time; }
  87         double selfTime() const { return m_visibleSelfTime; }
  88         double actualSelfTime() const { return m_actualSelfTime; }
  89         void setSelfTime(double time) {m_actualSelfTime = time; m_visibleSelfTime = time; }
  90         void setActualSelfTime(double time) { m_actualSelfTime = time; }
  91         void setVisibleSelfTime(double time) { m_visibleSelfTime = time; }
  92
  93         double totalPercent() const { return (m_visibleTotalTime / (m_head ? m_head->totalTime() : totalTime())) * 100.0; }
  94         double selfPercent() const { return (m_visibleSelfTime / (m_head ? m_head->totalTime() : totalTime())) * 100.0; }
  95
  96         unsigned numberOfCalls() const { return m_numberOfCalls; }
  97         void setNumberOfCalls(unsigned number) { m_numberOfCalls = number; }
  98
  99         // Children members
 100         const Vector<RefPtr<ProfileNode> >& children() const { return m_children; }
 101         ProfileNode* firstChild() const { return m_children.size() ? m_children.first().get() : 0; }
 102         ProfileNode* lastChild() const { return m_children.size() ? m_children.last().get() : 0; }
 103         ProfileNode* findChild(ProfileNode*) const;
 104         void removeChild(ProfileNode*);
 105         void addChild(PassRefPtr<ProfileNode> prpChild);
 106         void insertNode(PassRefPtr<ProfileNode> prpNode);
 107
 108         // Visiblity
 109         bool visible() const { return m_visible; }
 110         void setVisible(bool visible) { m_visible = visible; }
 111
 112         static void setTreeVisible(ProfileNode*, bool visible);
 113
 114         // Sorting
 115         ProfileNode* traverseNextNodePostOrder() const;
 116         ProfileNode* traverseNextNodePreOrder(bool processChildren = true) const;
 117
 118         // Views
 119         void calculateVisibleTotalTime();
 120         bool focus(const CallIdentifier&);
 121         void exclude(const CallIdentifier&);
 122         void restore();
 123
 124         void endAndRecordCall();
 125
 126 #ifndef NDEBUG
 127         const char* c_str() const { return m_callIdentifier; }
 128         void debugPrintData(int indentLevel) const;
 129         double debugPrintDataSampleStyle(int indentLevel, FunctionCallHashCount&) const;
 130 #endif
 131
 132     private:
 133         ProfileNode(ExecState* callerCallFrame, const CallIdentifier&, ProfileNode* headNode, ProfileNode* parentNode);
 134         ProfileNode(ExecState* callerCallFrame, ProfileNode* headNode, ProfileNode* nodeToCopy);
 135
 136         void startTimer();
 137         void resetChildrensSiblings();
 138
 139         RefPtr<ProfileNode>* childrenBegin() { return m_children.begin(); }
 140         RefPtr<ProfileNode>* childrenEnd() { return m_children.end(); }
 141
 142         // Sorting comparators
 143         static inline bool totalTimeDescendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->totalTime() > b->totalTime(); }
 144         static inline bool totalTimeAscendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->totalTime() < b->totalTime(); }
 145         static inline bool selfTimeDescendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->selfTime() > b->selfTime(); }
 146         static inline bool selfTimeAscendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->selfTime() < b->selfTime(); }
 147         static inline bool callsDescendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->numberOfCalls() > b->numberOfCalls(); }
 148         static inline bool callsAscendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->numberOfCalls() < b->numberOfCalls(); }
 149         static inline bool functionNameDescendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->functionName() > b->functionName(); }
 150         static inline bool functionNameAscendingComparator(const RefPtr<ProfileNode>& a, const RefPtr<ProfileNode>& b) { return a->functionName() < b->functionName(); }
 151
 152         ExecState* m_callerCallFrame;
 153         CallIdentifier m_callIdentifier;
 154         ProfileNode* m_head;
 155         ProfileNode* m_parent;
 156         ProfileNode* m_nextSibling;
 157
 158         double m_startTime;
 159         double m_actualTotalTime;
 160         double m_visibleTotalTime;
 161         double m_actualSelfTime;
 162         double m_visibleSelfTime;
 163         unsigned m_numberOfCalls;
 164
 165         bool m_visible;
 166
 167         Vector<RefPtr<ProfileNode> > m_children;
 168     };
 169
 170 } // namespace JSC
 171
 172 #endif // ProfileNode_h