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1 // Copyright (c) 2006-2009 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 // Purpose: Kernel-side tracking of debug agent information associated |
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15 // with each process being debugged. |
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16 // |
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17 // |
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18 |
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19 #ifndef D_DEBUG_AGENT_H |
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20 #define D_DEBUG_AGENT_H |
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21 |
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22 #include <rm_debug_api.h> |
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23 #include "d_driver_event_info.h" |
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24 |
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25 class DDebugAgent : public DBase |
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26 { |
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27 public: |
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28 static DDebugAgent* New(TUint64); |
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29 ~DDebugAgent(); |
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30 |
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31 TInt SetEventAction(Debug::TEventType aEvent, Debug::TKernelEventAction aEventAction); |
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32 void GetEvent(TClientDataRequest<Debug::TEventInfo>* aAsyncGetValueRequest, Debug::TEventInfo* aEventInfo, DThread* aClientThread); |
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33 TInt EventAction(Debug::TEventType aEvent); |
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34 |
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35 TInt CancelGetEvent(void); |
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36 void NotifyEvent(const TDriverEventInfo& aEventInfo); |
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37 TUint64 Id(); |
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38 |
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39 protected: |
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40 DDebugAgent(TUint64 aId); |
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41 TInt Construct(); |
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42 |
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43 private: |
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44 void QueueEvent(TDriverEventInfo& aEventInfo); |
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45 TBool BufferEmpty() const; |
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46 TBool BufferFull() const; |
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47 TBool BufferCanStoreEvent() const; |
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48 TBool BufferAtCriticalLevel() const; |
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49 void IncrementPosition(TInt& aPosition); |
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50 TInt NumberOfEmptySlots() const; |
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51 |
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52 private: |
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53 TUint64 iId; |
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54 Debug::TKernelEventAction iEventActions[Debug::EEventsLast]; |
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55 |
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56 //iEventInfo is a pointer to an object owned by the security server, so |
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57 //no clean up needs be performed on it |
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58 Debug::TEventInfo* iEventInfo; |
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59 RArray<TDriverEventInfo> iEventQueue; // ring buffer. |
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60 TClientDataRequest<Debug::TEventInfo>* iRequestGetEventStatus; |
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61 DThread* iClientThread; |
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62 |
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63 // Ring buffer data |
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64 TInt iHead; // points to the next empty slot in iEventQueue (exc. when iFull == ETrue) |
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65 TInt iTail; // points to the oldest full slot in iEventQueue (exc. when iEmpty == ETrue) |
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66 |
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67 //if we have told the agent that we are ignoring trace events |
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68 TBool iIgnoringTrace; |
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69 }; |
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70 |
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71 #endif // D_DEBUG_AGENT_H |
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72 |