1 // Copyright (c) 2008-2009 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 "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 "requestqueueoneshot.h"

    17 #include "mdispatchercallback.h"

    18 #include <ctsy/ltsy/ltsylogger.h>

    19 #include "ctsydispatcherpanic.h"

    20 #include <ctsy/pluginapi/cmmdatapackage.h>

    21 

    22 const TInt KNoIpc = -1;

    23 

    24 CRequestQueueOneShot::TIpcDataPackage::TIpcDataPackage()

    25 	: iIpc(KNoIpc), 

    26 	  iDataPackage(NULL), 

    27 	  iResultCode(KErrNone), 

    28 	  iCleanupOnly(EFalse), 

    29 	  iDispatcherCallback(NULL) ,

    30 	  iLink()

    31 	{

    32 	} // CRequestQueueOneShot::TIpcDataPackage::TIpcDataPackage

    33 

    34 CRequestQueueOneShot::TIpcDataPackage::~TIpcDataPackage()

    35 	{

    36 	delete iDataPackage;

    37 	iDataPackage = NULL;

    38 	} // CRequestQueueOneShot::TIpcDataPackage::~TIpcDataPackage

    39 

    40 CRequestQueueOneShot::CRequestQueueOneShot()

    41 	: CAsyncOneShot(CActive::EPriorityStandard),

    42 	  iIpcQueue(_FOFF(TIpcDataPackage,iLink))

    43 	{

    44 	} // CRequestQueueOneShot::CRequestQueueOneShot

    45 

    46 

    47 CRequestQueueOneShot::~CRequestQueueOneShot()

    48 	{

    49 	TSYLOGENTRYEXIT;

    50 	

    51 	Cancel();

    52 

    53 	TIpcDataPackage* ipcDataPackage;

    54 	while (!iIpcQueue.IsEmpty())

    55 		{

    56 		ipcDataPackage = iIpcQueue.First();

    57 		iIpcQueue.Remove(*ipcDataPackage);

    58 		ipcDataPackage->iCleanupOnly = ETrue;

    59 		// Callback to dispatcher to ensure that dispatcher cleans up any heap data

    60 		// in the CMmDataPackage inside the TIpcDataPackage.

    61 		ipcDataPackage->iDispatcherCallback->CallbackSync(*ipcDataPackage);

    62 		}

    63 	

    64 	} // CRequestQueueOneShot::~CRequestQueueOneShot

    65 

    66 

    67 CRequestQueueOneShot* CRequestQueueOneShot::NewLC()

    68 	{

    69 	CRequestQueueOneShot* self = new (ELeave)CRequestQueueOneShot();

    70 	CleanupStack::PushL (self);

    71 	self->ConstructL();

    72 	return self;

    73 	} // CRequestQueueOneShot::NewLC

    74 

    75 

    76 CRequestQueueOneShot* CRequestQueueOneShot::NewL()

    77 	{

    78 	TSYLOGENTRYEXIT;

    79 	CRequestQueueOneShot* self = CRequestQueueOneShot::NewLC();

    80 	CleanupStack::Pop(self);

    81 	return self;

    82 	} // CRequestQueueOneShot::NewL

    83 

    84 

    85 void CRequestQueueOneShot::ConstructL()

    86 	{

    87 	} // CRequestQueueOneShot::ConstructL

    88 

    89 

    90 void CRequestQueueOneShot::QueueRequest(TIpcDataPackage& aIpcDataPackage)

    91 /**

    92  * Add the request to the queue.

    93  * 

    94  * @param aIpcDataPackage The encapsulated request to add to the queue.

    95  */

    96 	{

    97 	TSYLOGENTRYEXITARGS(_L8("IPC=%d,err=%d"), aIpcDataPackage.iIpc, aIpcDataPackage.iResultCode);

    98 

    99 	__ASSERT_DEBUG(aIpcDataPackage.iDispatcherCallback != NULL, CtsyDispatcherPanic(EInvalidNullPtr)); 

   100 	aIpcDataPackage.iCleanupOnly = EFalse;

   101 	iIpcQueue.AddLast(aIpcDataPackage);

   102 	

   103 	// This object is only active if there is something in the queue

   104 	if (!IsActive())

   105 		{

   106 		Call();

   107 		}

   108 	

   109 	} // CRequestQueueOneShot::QueueRequest

   110 

   111 

   112 void CRequestQueueOneShot::DoCancel()

   113 	{

   114 	} // CRequestQueueOneShot::DoCancel

   115 

   116 

   117 void CRequestQueueOneShot::RunL()

   118 /**

   119  * Completes the request at the head of the queue.

   120  */

   121 	{

   122 	TSYLOGENTRYEXIT;

   123 	

   124 	if (iStatus == KErrNone)

   125 		{

   126 		__ASSERT_DEBUG(!iIpcQueue.IsEmpty(), CtsyDispatcherPanic(ERequestNotFound));

   127 		TIpcDataPackage* ipcDataPackage = iIpcQueue.First();

   128 		iIpcQueue.Remove(*ipcDataPackage);

   129 		ipcDataPackage->iDispatcherCallback->CallbackSync(*ipcDataPackage);

   130 		}

   131 	

   132 	if (!iIpcQueue.IsEmpty())

   133 		{

   134 		Call(); // Restart active object to process next request at the head of the queue

   135 		}

   136 	

   137 	} // CRequestQueueOneShot::RunL

   138 

   139