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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include "MemSpyDriverEventMonitor.h"
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// System includes
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#include <kern_priv.h>
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#include <nk_trace.h>
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// User includes
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#include "MemSpyDriverUtils.h"
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#include "MemSpyDriverDevice.h"
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#ifdef __MARM__
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#include "kdebug.h"
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#endif //__MARM__
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_LIT( KMemSpyEventMonitorMutexName, "MemSpyEventMonitor");
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DMemSpyEventMonitor::DMemSpyEventMonitor()
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: DKernelEventHandler( EventHandler, this )
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{
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}
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DMemSpyEventMonitor::~DMemSpyEventMonitor()
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::~DMemSpyEventMonitor() - START" ));
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if ( iLock )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::~DMemSpyEventMonitor() - closing iLock mutex" ));
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iLock->Close(NULL);
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}
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if ( iDevice )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::~DMemSpyEventMonitor() - closing iDevice" ));
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iDevice->Close(NULL);
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}
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::~DMemSpyEventMonitor() - END" ));
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}
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TInt DMemSpyEventMonitor::Create( DMemSpyDriverDevice* aDevice )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Create() - START - aDevice: 0x%08x", aDevice ));
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TInt err = aDevice->Open();
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Create() - device open err: %d", err ));
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//
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if (err == KErrNone )
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{
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iDevice = aDevice;
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//
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err = Kern::MutexCreate( iLock, KMemSpyEventMonitorMutexName, KMutexOrdNone );
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Create() - mutex create error: %d", err ));
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//
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if (!err)
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{
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err = Add();
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}
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}
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//
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Create() - END - err: %d", err ));
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return err;
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}
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TInt DMemSpyEventMonitor::Start()
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Start() - START"));
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NKern::ThreadEnterCS();
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Kern::MutexWait( *iLock );
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iTracking = ETrue;
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Kern::MutexSignal( *iLock );
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NKern::ThreadLeaveCS();
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Start() - END") );
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return KErrNone;
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}
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TInt DMemSpyEventMonitor::Stop()
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Stop() - START") );
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NKern::ThreadEnterCS();
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Kern::MutexWait( *iLock );
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iTracking = EFalse;
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Kern::MutexSignal( *iLock );
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NKern::ThreadLeaveCS();
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::Stop() - END") );
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return KErrNone;
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}
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TInt DMemSpyEventMonitor::RequestEvents( MMemSpyEventMonitorObserver& aObserver )
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{
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NKern::ThreadEnterCS();
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Kern::MutexWait( *iLock );
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TInt error = KErrAlreadyExists;
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//
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if ( IsObserving( aObserver ) == EFalse )
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{
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iObservers.Add( &aObserver.__iEMLink );
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error = KErrNone;
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}
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//
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Kern::MutexSignal( *iLock );
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NKern::ThreadLeaveCS();
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//
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::RequestEvents() - END - error: %d", error) );
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return error;
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}
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TInt DMemSpyEventMonitor::RequestEventsCancel( MMemSpyEventMonitorObserver& aObserver )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::RequestEventsCancel() - START - aObserver: 0x%08x", &aObserver) );
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NKern::ThreadEnterCS();
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Kern::MutexWait( *iLock );
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const TBool isObserving = IsObserving( aObserver );
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if ( isObserving )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::RequestEventsCancel() - dequing observer...") );
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aObserver.__iEMLink.Deque();
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::RequestEventsCancel() - observer dequeued") );
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}
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Kern::MutexSignal( *iLock );
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NKern::ThreadLeaveCS();
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//
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::RequestEventsCancel() - END") );
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return KErrNone;
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}
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TUint DMemSpyEventMonitor::EventHandler( TKernelEvent aType, TAny* a1, TAny* a2, TAny* aSelf )
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{
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DMemSpyEventMonitor* self = (DMemSpyEventMonitor*) aSelf;
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const TUint ret = self->HandleEvent( aType, a1, a2 );
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return ret;
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}
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TUint DMemSpyEventMonitor::HandleEvent( TKernelEvent aType, TAny* a1, TAny* /*a2*/ )
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - PRE WAIT"));
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NKern::ThreadEnterCS();
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Kern::MutexWait(*iLock);
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - POST WAIT"));
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if ( iTracking )
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{
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switch( aType )
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{
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//////////////////////////////////
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// THREAD HANDLING
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//////////////////////////////////
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case EEventAddThread:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventAddThread"));
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EventThreadAdd( (DThread*) a1 );
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break;
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}
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case EEventRemoveThread:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventRemoveThread"));
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EventThreadRemoved( (DThread*) a1 );
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break;
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}
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case EEventKillThread:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventKillThread"));
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EventThreadKilled( (DThread*) a1 );
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break;
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}
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//////////////////////////////////
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// PROCESS HANDLING
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//////////////////////////////////
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case EEventAddProcess:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventAddProcess"));
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EventProcessAdd( (DProcess*) a1 );
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break;
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}
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case EEventUpdateProcess:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventUpdateProcess"));
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EventProcessUpdate( (DProcess*) a1 );
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break;
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}
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case EEventRemoveProcess:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventRemoveProcess"));
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EventProcessRemoved( (DProcess*) a1 );
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break;
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}
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//////////////////////////////////
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// CHUNK HANDLING
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//////////////////////////////////
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case EEventNewChunk:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventNewChunk"));
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EventChunkAdd( (DChunk*) a1 );
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break;
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}
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case EEventUpdateChunk:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventUpdateChunk"));
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EventChunkUpdate( (DChunk*) a1 );
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break;
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}
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case EEventDeleteChunk:
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{
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - EEventDeleteChunk"));
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EventChunkDelete( (DChunk*) a1 );
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break;
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}
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default:
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break;
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}
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}
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - PRE SIGNAL "));
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Kern::MutexSignal( *iLock );
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NKern::ThreadLeaveCS();
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// TRACE_EM( Kern::Printf("DMemSpyEventMonitor::HandleEvent() - POST SIGNAL "));
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// Allow other handlers to see this event
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return DKernelEventHandler::ERunNext;
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}
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void DMemSpyEventMonitor::EventProcessAdd( DProcess* aProcess )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventProcessAdd() - aProcess: 0x%08x [%d] (%O)", aProcess, aProcess->iId, aProcess ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventProcessAdd )
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{
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observer->EMHandleProcessAdd( *aProcess );
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}
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}
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}
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void DMemSpyEventMonitor::EventProcessUpdate( DProcess* aProcess )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventProcessUpdate() - aProcess: 0x%08x [%d] (%O)", aProcess, aProcess->iId, aProcess ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventProcessUpdate )
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{
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observer->EMHandleProcessUpdated( *aProcess );
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}
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}
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}
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void DMemSpyEventMonitor::EventProcessRemoved( DProcess* aProcess )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventProcessRemoved() - aProcess: 0x%08x [%d] (%O)", aProcess, aProcess->iId, aProcess ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventProcessRemove )
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{
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observer->EMHandleProcessRemoved( *aProcess );
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}
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}
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}
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void DMemSpyEventMonitor::EventThreadAdd( DThread* aThread )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventThreadAdd() - aThread: 0x%08x [%4d] (%O)", aThread, aThread->iId, aThread ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventThreadAdd )
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{
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observer->EMHandleThreadAdd( *aThread );
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}
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}
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}
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void DMemSpyEventMonitor::EventThreadRemoved( DThread* aThread )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventThreadRemoved() - aThread: 0x%08x [%4d] (%O)", aThread, aThread->iId, aThread ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventThreadRemove )
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{
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observer->EMHandleThreadRemoved( *aThread );
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}
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}
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}
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void DMemSpyEventMonitor::EventThreadKilled( DThread* aThread )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventThreadKilled() - aThread: 0x%08x [%4d] (%O)", aThread, aThread->iId, aThread ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventThreadKill )
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{
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observer->EMHandleThreadKilled( *aThread );
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}
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}
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}
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void DMemSpyEventMonitor::EventChunkAdd( DChunk* aChunk )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventChunkAdd() - aChunk: 0x%08x [%10d] {OP: %4d, CO: %4d} (%O)", aChunk, aChunk->Size(), ( aChunk->iOwningProcess ? aChunk->iOwningProcess->iId : 0 ), aChunk->iControllingOwner, aChunk ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventChunkAdd )
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{
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observer->EMHandleChunkAdd( *aChunk );
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}
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}
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}
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void DMemSpyEventMonitor::EventChunkUpdate( DChunk* aChunk )
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{
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TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventChunkUpdate() - aChunk: 0x%08x [%10d] {OP: %4d, CO: %4d} (%O)", aChunk, aChunk->Size(), ( aChunk->iOwningProcess ? aChunk->iOwningProcess->iId : 0 ), aChunk->iControllingOwner, aChunk ));
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//
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const SDblQueLink* const anchor = &iObservers.iA;
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for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
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{
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MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
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const TInt typeMask = observer->EMTypeMask();
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//
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if ( typeMask & EMemSpyEventChunkUpdate )
|
|
399 |
{
|
|
400 |
observer->EMHandleChunkUpdated( *aChunk );
|
|
401 |
}
|
|
402 |
}
|
|
403 |
}
|
|
404 |
|
|
405 |
|
|
406 |
void DMemSpyEventMonitor::EventChunkDelete( DChunk* aChunk )
|
|
407 |
{
|
|
408 |
TRACE_EM( Kern::Printf("DMemSpyEventMonitor::EventChunkDelete() - aChunk: 0x%08x [%10d] {OP: %4d, CO: %4d} (%O)", aChunk, aChunk->Size(), ( aChunk->iOwningProcess ? aChunk->iOwningProcess->iId : 0 ), aChunk->iControllingOwner, aChunk ));
|
|
409 |
//
|
|
410 |
const SDblQueLink* const anchor = &iObservers.iA;
|
|
411 |
for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
|
|
412 |
{
|
|
413 |
MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
|
|
414 |
const TInt typeMask = observer->EMTypeMask();
|
|
415 |
//
|
|
416 |
if ( typeMask & EMemSpyEventChunkDelete )
|
|
417 |
{
|
|
418 |
observer->EMHandleChunkDeleted( *aChunk );
|
|
419 |
}
|
|
420 |
}
|
|
421 |
}
|
|
422 |
|
|
423 |
|
|
424 |
|
|
425 |
|
|
426 |
|
|
427 |
|
|
428 |
|
|
429 |
|
|
430 |
|
|
431 |
|
|
432 |
TBool DMemSpyEventMonitor::IsObserving( MMemSpyEventMonitorObserver& aObserver )
|
|
433 |
{
|
|
434 |
TBool ret = EFalse;
|
|
435 |
const SDblQueLink* const anchor = &iObservers.iA;
|
|
436 |
|
|
437 |
for (SDblQueLink* link = iObservers.First(); link != anchor; link = link->iNext)
|
|
438 |
{
|
|
439 |
MMemSpyEventMonitorObserver* const observer = _LOFF(link, MMemSpyEventMonitorObserver, __iEMLink);
|
|
440 |
|
|
441 |
if ( observer == &aObserver )
|
|
442 |
{
|
|
443 |
ret = ETrue;
|
|
444 |
break;
|
|
445 |
}
|
|
446 |
}
|
|
447 |
|
|
448 |
return ret;
|
|
449 |
}
|
|
450 |
|