1 /*******************************************************************************

     2  * Copyright (c) 2005, 2010 Nokia Corporation and/or its subsidiary(-ies).

     3  * All rights reserved. This program and the accompanying materials

     4  * are made available under the terms of the Eclipse Public License v1.0

     5  * which accompanies this distribution, and is available at

     6  * http://www.eclipse.org/legal/epl-v10.html

     7  *

     8  * Contributors:

     9  *     Nokia Corporation - S60 implementation

    10  *******************************************************************************/

    11 

    12 

    13 #if defined(__WINS__) && defined(_DEBUG)

    14 

    15 

    16 #include "swtinstancecounts.h"

    17 #include "swtdisplay.h" // needed for macro definitions

    18 

    19 

    20 // ======== LOCAL FUNCTIONS ========

    21 

    22 

    23 static void CheckLeak(TInt& aCount, TInt aCorrectCount=0)

    24 {

    25     // The reason for stopping here is that eSWT Display is being disposed

    26     // but not all the eSWT resources have been appropriately freed by

    27     // calling dispose(). This creates a memory leak. Step up the call stack

    28     // into CheckForLeaks() and you will see which type of object was leaked.

    29     // Likely reasons for this error are:

    30     // - The Java application not disposing its eSWT resources appropriately

    31     //   (e.g. Images, Fonts, GCs, Colors)

    32     // - eSWT widget not appropriately disposing another eSWT object it owns

    33     //   when being disposed itself

    34 #ifdef ESWT_NATIVE_UITHREAD_OWN_HEAP

    35     ASSERT(aCount == aCorrectCount);

    36 #endif // ESWT_NATIVE_UITHREAD_OWN_HEAP

    37 

    38     if (aCount != aCorrectCount)

    39     {

    40         aCount = aCorrectCount;

    41     }

    42 }

    43 

    44 

    45 // ======== MEMBER FUNCTIONS ========

    46 

    47 

    48 void TSwtInstanceCounts::CheckForLeaks()

    49 {

    50     CheckLeak(iColor);

    51     CheckLeak(iFont);

    52     CheckLeak(iGc);

    53     CheckLeak(iImage);

    54     CheckLeak(iScrollBar);

    55     CheckLeak(iMenu);

    56     CheckLeak(iMenuItem);

    57     CheckLeak(iCommand);

    58     CheckLeak(iClipboard);

    59     CheckLeak(iTableColumn);

    60     CheckLeak(iTableItem);

    61     CheckLeak(iTreeItem);

    62 

    63     // Controls deserve a special treatment as we don't know precisely which has been disposed

    64     const TInt ctrlSum = iButton         + iCanvas            + iCaptionedControl  + iCombo

    65                          + iComposite      + iConstrainedText   + iDateEditor        + iDecorations

    66                          + iHyperLink      + iLabel             + iList              + iListBox

    67                          + iListView       + iMultiPagePager    + iMultiPageTabGroup + iMultiPageDialog

    68                          + iProgressBar    + iShell             + iSlider            + iSortedList

    69                          + iText           + iTextExtension     + iTable             + iTree

    70                          + iBrowser        + iMobileShell       + iDCControl;

    71     CheckLeak(iDisposedControls, ctrlSum);

    72 }

    73 

    74 

    75 #endif // defined(__WINS__) && defined(_DEBUG)