1 /*

     2 * Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  GOOM Monitor plug-in interface.

    15 *

    16 */

    17 

    18 

    19 #include <apgwgnam.h>

    20 #include "goommonitorplugin.h"

    21 #include "goommemorymonitor.h"

    22 #include "goomtraces.h"

    23 

    24 // TLS is used to store the CMemoryMonitor pointer, CMemoryMonitor

    25 // being the main object in the GOOM monitor thread. This allows

    26 // plugins to access the CMemoryMonitor object easily.

    27 EXPORT_C void SetGMemoryMonitorTls(CMemoryMonitor* aMonitor)

    28     {

    29     FUNC_LOG;

    30 

    31     Dll::SetTls(aMonitor);

    32     }

    33 

    34 CMemoryMonitor* MemoryMonitorTls()

    35     {

    36     FUNC_LOG;

    37 

    38     return static_cast<CMemoryMonitor*>(Dll::Tls());

    39     }

    40 

    41 

    42 void GOomMonitorPluginPanic(TGOomMonitorPluginPanic aReason)

    43     {

    44     FUNC_LOG;

    45 

    46     _LIT(KCat, "GOomMonitorPlugin");

    47     User::Panic(KCat, aReason);

    48     }

    49 

    50 

    51 EXPORT_C CGOomMonitorPluginBase::CGOomMonitorPluginBase()

    52 : iMemoryMonitor(MemoryMonitorTls())

    53     {

    54     FUNC_LOG;

    55     RDebug::Print(_L("CGOomMonitorPluginBase::CGOomMonitorPluginBase"));

    56 

    57     __ASSERT_ALWAYS(iMemoryMonitor, GOomMonitorPluginPanic(EGOomMonitorPluginPanic_PluginConstructedOutsideGOomMonitorThread));

    58     RDebug::Print(_L("CGOomMonitorPluginBase::CGOomMonitorPluginBase EXIT"));

    59     }

    60 

    61 EXPORT_C CGOomMonitorPluginBase::~CGOomMonitorPluginBase()

    62     {

    63     FUNC_LOG;

    64     }

    65 

    66 EXPORT_C void CGOomMonitorPluginBase::ConstructL()

    67     {

    68     FUNC_LOG;

    69 

    70     // CAppGOomMonitorPlugin assumes ConstructL is empty

    71     }

    72 

    73 EXPORT_C void CGOomMonitorPluginBase::ExtensionInterface(TUid /*aInterfaceId*/, TAny*& /*aImplementaion*/)

    74     {

    75     FUNC_LOG;

    76     }

    77 

    78 EXPORT_C RFs& CGOomMonitorPluginBase::FsSession()

    79     {

    80     FUNC_LOG;

    81 

    82     return iMemoryMonitor->iFs;

    83     }

    84 

    85 EXPORT_C RWsSession& CGOomMonitorPluginBase::WsSession()

    86     {

    87     FUNC_LOG;

    88 

    89     return iMemoryMonitor->iWs;

    90     }

    91 

    92 EXPORT_C CAppGOomMonitorPlugin* CAppGOomMonitorPlugin::NewL(TUid aAppUid)

    93     {

    94     CAppGOomMonitorPlugin* self = new(ELeave) CAppGOomMonitorPlugin(aAppUid);

    95     // ConstructL() currently not needed

    96     return self;

    97     }

    98 

    99 CAppGOomMonitorPlugin::CAppGOomMonitorPlugin(TUid aAppUid)

   100 : iAppUid(aAppUid)

   101     {

   102     }

   103 

   104 void CAppGOomMonitorPlugin::FreeRam(TInt)

   105     {

   106     SendMessageToApp(KAppGOomMonitor_FreeRam);

   107     }

   108 

   109 void CAppGOomMonitorPlugin::MemoryGood()

   110     {

   111     SendMessageToApp(KAppGOomMonitor_MemoryGood);

   112     }

   113 

   114 void CAppGOomMonitorPlugin::SendMessageToApp(TInt aMessage)

   115     {

   116     RWsSession& ws = WsSession();

   117     TInt wgId = 0;

   118 

   119     do

   120         {

   121         CApaWindowGroupName::FindByAppUid(iAppUid, ws, wgId);

   122         if (wgId>0)

   123             {

   124             TWsEvent event;

   125             event.SetType(aMessage);

   126             event.SetTimeNow();

   127             ws.SendEventToWindowGroup(wgId, event);

   128             }

   129         }

   130     while (wgId>0);

   131     }