1 // Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of the License "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

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

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 #include <plat_priv.h>

    17 #include "mm.h"

    18 #include "mmu.h"

    19 

    20 #include "mcleanup.h"

    21 

    22 

    23 //

    24 // TMemoryCleanup

    25 //

    26 

    27 static TDfc CleanupDfc(TMemoryCleanup::Cleanup, NULL, 2);

    28 

    29 static TMemoryCleanup* CleanupList = 0;

    30 

    31 #ifdef __SMP__

    32 static TSpinLock CleanupLock(TSpinLock::EOrderEventHandlerList);

    33 #endif

    34 

    35 void TMemoryCleanup::Init2()

    36 	{

    37 	CleanupDfc.SetDfcQ(K::SvMsgQ);

    38 	}

    39 

    40 

    41 void TMemoryCleanup::Add(TMemoryCleanupCallback aCallback, TAny* aArg)

    42 	{

    43 	__SPIN_LOCK_IRQ(CleanupLock);

    44 	if(iCallback)

    45 		{

    46 		// already queued...

    47 		__NK_ASSERT_DEBUG(iCallback==aCallback);

    48 		__SPIN_UNLOCK_IRQ(CleanupLock);

    49 		}

    50 	else

    51 		{

    52 		iCallback = aCallback;

    53 		iArg = aArg;

    54 		iNext = CleanupList;

    55 		CleanupList = this;

    56 		__SPIN_UNLOCK_IRQ(CleanupLock);

    57 		CleanupDfc.Enque();

    58 		}

    59 	}

    60 

    61 

    62 void TMemoryCleanup::Cleanup(TAny* /*aDummy*/)

    63 	{

    64 	for(;;)

    65 		{

    66 		__SPIN_LOCK_IRQ(CleanupLock);

    67 		TMemoryCleanup* c = CleanupList;

    68 		if(!c)

    69 			{

    70 			__SPIN_UNLOCK_IRQ(CleanupLock);

    71 			return;

    72 			}

    73 

    74 		CleanupList = c->iNext;

    75 		TMemoryCleanupCallback fn = c->iCallback;

    76 		TAny* arg = c->iArg;

    77 		c->iCallback = 0;

    78 		__SPIN_UNLOCK_IRQ(CleanupLock);

    79 		(*fn)(arg);

    80 		}

    81 	}