camerauis/cameraapp/generic/src/CamMemoryMonitor.cpp
changeset 19 d9aefe59d544
parent 3 8b2d6d0384b0
child 21 fa6d9f75d6a6
child 28 3075d9b614e6
--- a/camerauis/cameraapp/generic/src/CamMemoryMonitor.cpp	Tue Feb 02 00:01:39 2010 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,288 +0,0 @@
-/*
-* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
-* All rights reserved.
-* This component and the accompanying materials are made available
-* under the terms of "Eclipse Public License v1.0"
-* which accompanies this distribution, and is available
-* at the URL "http://www.eclipse.org/legal/epl-v10.html".
-*
-* Initial Contributors:
-* Nokia Corporation - initial contribution.
-*
-* Contributors:
-*
-* Description:  Class that monitors free memory and attempts to free it if necessary
-*
-*/
-
-#include "CamMemoryMonitor.h"
-
-
-#include <hal.h>
-#include <hal_data.h>
-#include <AknGlobalNote.h>
-#include <StringLoader.h>
-#include <vgacamsettings.rsg>
-#include "CamAppUi.h"
-#include "CamAppController.h"
-#include "camlogging.h"
-
-
-const static TInt KMemoryCheckInterval = 10*1000*1000;
-const static TInt KNeededMemoryLevel = 20*1024*1024;
-const static TInt KCriticalMemoryLevel = 18*1024*1024;
-
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::NewL
-// ---------------------------------------------------------------------------
-//
-CCamMemoryMonitor* CCamMemoryMonitor::NewL(CCamAppUi* aAppUi, CCamAppController* aController)
-    {
-    CCamMemoryMonitor* self = new (ELeave) CCamMemoryMonitor( aAppUi, aController );
-    CleanupStack::PushL( self );
-    self->ConstructL();
-    CleanupStack::Pop(); // self;
-    return self;
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::~CCamMemoryMonitor
-// ---------------------------------------------------------------------------
-//
-CCamMemoryMonitor::~CCamMemoryMonitor()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::~CCamMemoryMonitor") )
-    if ( iMemoryCheckTimer )
-        {
-        iMemoryCheckTimer->Cancel();
-        delete iMemoryCheckTimer;
-        }
-    PRINT( _L("Camera <= CCamMemoryMonitor::~CCamMemoryMonitor") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::StartMonitoring
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::StartMonitoring( TInt aLimit, TInt aRequestAmount )
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::StartMonitoring") )
-    if ( !iMemoryCheckTimer->IsActive() )
-        {
-        iLimit = aLimit;
-        iRequestAmount = aRequestAmount;
-        iMemoryCheckTimer->Start( KMemoryCheckInterval, KMemoryCheckInterval,
-                              TCallBack( MemoryCheck, this ) );
-        }
-    PRINT( _L("Camera <= CCamMemoryMonitor::StartMonitoring") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::StartMonitoring
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::StartMonitoring()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::StartMonitoring") )
-    if ( !iMemoryCheckTimer->IsActive() )
-        {
-        iMemoryCheckTimer->Start( KMemoryCheckInterval, KMemoryCheckInterval,
-                              TCallBack( MemoryCheck, this ) );
-        }
-    PRINT( _L("Camera <= CCamMemoryMonitor::StartMonitoring") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::StopMonitoring
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::StopMonitoring()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::StopMonitoring") )
-    iMemoryCheckTimer->Cancel();
-    PRINT( _L("Camera <= CCamMemoryMonitor::StopMonitoring") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::CheckAndRequestMemoryL
-// ---------------------------------------------------------------------------
-//
-TInt CCamMemoryMonitor::CheckAndRequestMemoryL( TInt aLimit, TInt aRequestAmount, TBool aShowNote )
-    {
-
-    PRINT( _L("Camera => CCamMemoryMonitor::CheckAndRequestMemoryL") )
-    if ( IsActive() )
-    {
-        return KErrNone;
-    }
-
-    TInt memoryLeft = 0;
-    TInt errorCode = KErrNone;
-    HAL::Get( HALData::EMemoryRAMFree, memoryLeft );
-    if ( memoryLeft < aLimit )
-        {
-        PRINT( _L("Camera <> CCamMemoryMonitor::CheckAndRequestMemoryL memory below limit, requesting") )
-        HBufC* freeMemText = NULL;
-        CAknGlobalNote* note = NULL;
-        TInt noteId = 0;
-        if ( aShowNote )
-            {
-
-            freeMemText = StringLoader::LoadL( R_NOTE_TEXT_FREE_MEMORY );
-            CleanupStack::PushL( freeMemText );
-            // show error note
-            note = CAknGlobalNote::NewL();
-            CleanupStack::PushL( note );
-
-            note->SetTextProcessing( ETrue );
-            note->SetPriority(CActive::EPriorityHigh);
-            noteId = note->ShowNoteL(EAknGlobalWaitNote, *freeMemText);
-            }
-
-        User::LeaveIfError( iOomMonitor.Connect() );
-
-        errorCode = iOomMonitor.RequestFreeMemory( aRequestAmount );
-        if ( errorCode != KErrNone )
-            {
-            // try one more time
-            PRINT( _L("Camera <> CCamMemoryMonitor::CheckAndRequestMemoryL request returned with error, let's try one more time") )
-            errorCode = iOomMonitor.RequestFreeMemory( aRequestAmount );
-            }
-        iOomMonitor.Close();
-
-
-        if ( aShowNote )
-            {
-            note->CancelNoteL(noteId);
-            CleanupStack::PopAndDestroy( 2 ); // freeMemText & note
-            }
-        }
-
-    PRINT1( _L("Camera <= CCamMemoryMonitor::CheckAndRequestMemoryL returning %d"), errorCode )
-    return errorCode;
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::CheckAndRequestMemoryL
-// ---------------------------------------------------------------------------
-//
-TInt CCamMemoryMonitor::CheckAndRequestMemoryL( TBool aShowNote )
-    {
-    return CheckAndRequestMemoryL( KCriticalMemoryLevel, KNeededMemoryLevel, aShowNote );
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::RunL
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::RunL()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::RunL") )
-    iOomMonitor.Close();
-    PRINT( _L("Camera <= CCamMemoryMonitor::RunL") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::DoCancel
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::DoCancel()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::DoCancel") )
-    if ( IsActive() )
-        {
-        iOomMonitor.CancelRequestFreeMemory();
-        iOomMonitor.Close();
-        }
-    PRINT( _L("Camera <= CCamMemoryMonitor::DoCancel") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::CCamMemoryMonitor
-// ---------------------------------------------------------------------------
-//
-CCamMemoryMonitor::CCamMemoryMonitor(CCamAppUi* aAppUi, CCamAppController* aController)
-: CActive( CActive::EPriorityIdle ),
-  iLimit( KCriticalMemoryLevel ), iRequestAmount( KNeededMemoryLevel ),
-  iAppUi( aAppUi ), iController( aController )
-
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::CCamMemoryMonitor") )
-    CActiveScheduler::Add(this);
-    PRINT( _L("Camera <= CCamMemoryMonitor::CCamMemoryMonitor") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::ConstructL
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::ConstructL()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::ConstructL") )
-    iMemoryCheckTimer = CPeriodic::New( CActive::EPriorityIdle );
-    PRINT( _L("Camera <= CCamMemoryMonitor::ConstructL") )
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::MemoryCheck
-// ---------------------------------------------------------------------------
-//
-TInt CCamMemoryMonitor::MemoryCheck( TAny* aPtr )
-    {
-
-    PRINT( _L("Camera => CCamMemoryMonitor::MemoryCheck") )
-    CCamMemoryMonitor* self = static_cast<CCamMemoryMonitor*>( aPtr );
-
-    self->CheckMemory();
-
-    PRINT( _L("Camera <= CCamMemoryMonitor::MemoryCheck") )
-    return KErrNone;
-    }
-
-// ---------------------------------------------------------------------------
-// CCamMemoryMonitor::CheckMemory
-// ---------------------------------------------------------------------------
-//
-void CCamMemoryMonitor::CheckMemory()
-    {
-    PRINT( _L("Camera => CCamMemoryMonitor::CheckMemory") )
-    if ( IsActive() )
-        {
-        PRINT( _L("Camera <= CCamMemoryMonitor::CheckMemory already requesting memory") )
-        return;
-        }
-
-    if ( iAppUi->CurrentViewState() == ECamViewStatePreCapture &&
-         iController->CurrentOperation() == ECamNoOperation &&
-         !iAppUi->AppInBackground( EFalse ) )
-        {
-        PRINT( _L("Camera <> CCamMemoryMonitor::CheckMemory checking memory") )
-        TInt memoryLeft = 0;
-        HAL::Get( HALData::EMemoryRAMFree, memoryLeft );
-        if ( memoryLeft < iLimit )
-            {
-            TInt err =  iOomMonitor.Connect();
-            if ( !err )
-                {
-                PRINT( _L("Camera <> CCamMemoryMonitor::CheckMemory requesting memory") )
-                iOomMonitor.RequestFreeMemory( iRequestAmount, iStatus );
-                SetActive();
-                }
-            else
-                {
-                PRINT1( _L("Camera <> CCamMemoryMonitor::CheckMemory failed to connect to OoMMonitor err=%d"), err )
-                }
-            }
-        else
-            {
-            PRINT( _L("Camera <> CCamMemoryMonitor::CheckMemory no need for memory request") )
-            }
-        }
-    else
-        {
-        PRINT( _L("Camera <> CCamMemoryMonitor::CheckMemory not in correct state, not checking memory") )
-        }
-
-    PRINT( _L("Camera <= CCamMemoryMonitor::CheckMemory") )
-    }