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1 // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // e32test/debug/d_eventtracker.h |
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15 // |
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16 // |
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17 |
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18 #ifndef __D_EVENTTRACKER_H__ |
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19 #define __D_EVENTTRACKER_H__ |
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20 |
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21 #include "platform.h" |
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22 |
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23 |
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24 /** Base class for representing objects being tracked. */ |
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25 |
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26 class TTrackedItem |
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27 { |
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28 public: |
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29 TTrackedItem(const DBase* aObject); |
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30 |
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31 public: |
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32 SDblQueLink iLink; |
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33 const DBase* const iObject; // key |
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34 TBool iAccountedFor; |
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35 }; |
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36 |
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37 /** Subclass for representing DObjects being tracked. */ |
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38 |
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39 class TTrackedObject : public TTrackedItem |
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40 { |
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41 public: |
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42 TTrackedObject(DObject* aObject, TObjectType aType); |
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43 TBool CheckIntegrity(const TDesC& aName, TObjectType aType) const; |
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44 |
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45 public: |
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46 TFullName iFullName; |
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47 const TObjectType iType; |
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48 }; |
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49 |
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50 /** Subclass for representing DCodeSegs being tracked. */ |
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51 |
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52 class TTrackedCodeSeg : public TTrackedItem |
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53 { |
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54 public: |
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55 TTrackedCodeSeg(const DCodeSeg* aCodeSeg); |
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56 TBool CheckIntegrity(TInt aAccessCount) const; |
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57 |
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58 public: |
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59 TInt iAccessCount; |
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60 }; |
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61 |
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62 |
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63 /** Event handler and container for all objects being tracked. */ |
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64 |
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65 class DEventTracker : public DKernelEventHandler |
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66 { |
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67 public: |
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68 DEventTracker(); |
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69 TInt Create(DLogicalDevice* aDevice, TBool aUseHook); |
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70 ~DEventTracker(); |
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71 TInt Start(); |
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72 TInt Stop(); |
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73 |
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74 private: |
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75 static TUint EventHandler(TKernelEvent aEvent, TAny* a1, TAny* a2, TAny* aThis); |
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76 TUint HandleEvent(TKernelEvent aType, TAny* a1, TAny* a2); |
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77 TInt AddExistingObjects(); |
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78 TInt AddObjectsFromContainer(TObjectType aType); |
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79 TInt AddCodeSegsFromList(); |
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80 TInt CheckIntegrity(); |
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81 void CheckContainerIntegrity(TObjectType aType); |
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82 void CheckCodeSegListIntegrity(); |
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83 void CheckAllAccountedFor(); |
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84 |
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85 TTrackedItem* LookupItem(DBase* aItem) const; |
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86 |
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87 void AddObject(TObjectType aType, DObject* aObject); |
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88 void RemoveObject(TObjectType aType, DObject* aObject); |
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89 void UpdateObject(TObjectType aType, DObject* aObject, TBool aMustBeRenamed); |
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90 void AddCodeSeg(DCodeSeg* aCodeSeg, DProcess* aProcess); |
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91 void RemoveCodeSeg(DCodeSeg* aCodeSeg, DProcess* aProcess); |
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92 void ProcessLoaded(DProcess* aProcess); |
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93 |
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94 void StopTracking(); |
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95 void DumpCounters() const; |
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96 |
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97 static void BranchToEventHandler(); |
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98 static TUint BreakPointSize(); |
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99 |
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100 // Dummy handler to be copied into RAM |
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101 static TUint DummyHandler(TKernelEvent aEvent, TAny* a1, TAny* a2); |
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102 |
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103 // Size of dummy handler |
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104 static TUint DummyHandlerSize(); |
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105 |
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106 // Copy the default handler |
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107 static void CopyDummyHandler(TLinAddr aLinAddr); |
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108 |
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109 private: |
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110 /** Lock serialising calls to event handler */ |
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111 DMutex* iLock; |
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112 TBool iTracking; |
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113 /** Tracking list (of TTrackedItem). |
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114 Must be accessed only when tracking is disabled or with iLock held. |
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115 Object addresses are used as keys and so must be unique. |
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116 */ |
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117 SDblQue iItems; |
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118 TInt iOOM; |
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119 TInt iErrorCount; |
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120 TInt iCounters[EEventLimit]; |
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121 DLogicalDevice* iDevice; // open reference to LDD for avoiding lifetime issues |
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122 }; |
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123 |
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124 GLREF_D DEventTracker* TheEventTracker; |
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125 |
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126 #endif // __D_EVENTTRACKER_H__ |