// Copyright (c) 2005-2009 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:

 //

 #include "MmfDevSoundCIMuxUtility.h"

 #include <mmf/plugin/mmfdevsoundcustominterface.hrh>

 #include <mmf/server/mmfdevsoundcustominterface.h>

 #include <ecom/ecom.h>

 #include <mm/mmpluginutils.h>

 const TInt KMuxTempBufferSize = 20;

 CMMFDevSoundCIMuxUtility* CMMFDevSoundCIMuxUtility::NewL(MMMFDevSoundCustomInterfaceChannel* aCustomChannel)

 	{

 	CMMFDevSoundCIMuxUtility* self = new (ELeave) CMMFDevSoundCIMuxUtility(aCustomChannel);

 	CleanupStack::PushL(self);

 	self->ConstructL();

 	CleanupStack::Pop(self);

 	return self;

 	}

 void CMMFDevSoundCIMuxUtility::ConstructL()

 	{

 	// nothing needed in this implementation

 	}

 CMMFDevSoundCIMuxUtility::~CMMFDevSoundCIMuxUtility()

 	{

 	iAsyncCustomCommandCleanup.ResetAndDestroy();

 	iAsyncCustomCommandCleanup.Close();	

 	}

 // create a custom interface Mux implementation

 MMMFDevSoundCustomInterfaceMuxPlugin* CMMFDevSoundCIMuxUtility::CreateCustomInterfaceMuxL(TUid aInterfaceId)

 	{

 	// The Uid of the plugin will be used as string for matching the best suitable plug in.

 	TInt uidAsInteger = aInterfaceId.iUid;

 	TBuf8<KMuxTempBufferSize> tempBuffer;

 	tempBuffer.Num(uidAsInteger, EHex);

 	TUid interfaceUid = {KUidDevSoundCustomInterfaceMux};

 	TUid destructorKey;

 	MMMFDevSoundCustomInterfaceMuxPlugin* self = 

 		static_cast<MMMFDevSoundCustomInterfaceMuxPlugin*>

 		(MmPluginUtils::CreateImplementationL(interfaceUid, destructorKey, tempBuffer, KRomOnlyResolverUid));

 	// pass the destructor key so class can destroy itself

 	self->PassDestructorKey(destructorKey);

 	CleanupReleasePushL(*self);

 	// attempt to construct the plugin

 	self->CompleteConstructL(this);

 	CleanupStack::Pop(); // self

 	return self;

 	}

 // from MMMFDevSoundCustomInterfaceMux interface

 TInt CMMFDevSoundCIMuxUtility::OpenSlave(TUid aInterface, const TDesC8& aPackageBuf)

 	{

 	// 1. send openslave custom command to remote side

 	// 2. devsoundsession intercepts this custom command

 	//    and creates / opens interface

 	TA3FCustomInterfaceCommand command;

 	command.iType = EMMFDevSoundCustomCommandCIOpenSlave;

 	command.iCommand = 0; // No custom command passed on an OpenSlave

 	command.iHandle = aInterface.iUid;

 	TPckgBuf<TA3FCustomInterfaceCommand> commandBuffer(command);

 	return iCustomChannel->SyncCustomCommand(KUidInterfaceMMFDevSound, commandBuffer, aPackageBuf, NULL);

 	}

 void CMMFDevSoundCIMuxUtility::CloseSlave(TInt aHandle)

 	{

 	// 1. send closeslave custom command to remote side

 	// 2. demuxplugin removes its handle for this interface

 	TA3FCustomInterfaceCommand command;

 	command.iType = EMMFDevSoundCustomCommandCICloseSlave;

 	command.iCommand = 0; // No custom command passed on a CloseSlave

 	command.iHandle = aHandle;

 	TPckgBuf<TA3FCustomInterfaceCommand> commandBuffer(command);

 	iCustomChannel->SyncCustomCommand(KUidInterfaceMMFDevSound, commandBuffer, KNullDesC8, NULL);

 	}

 TInt CMMFDevSoundCIMuxUtility::SendSlaveSyncCommand(TInt aHandle, TInt aCommand, const TDesC8& aPackageBuf)

 	{

 	TA3FCustomInterfaceCommand command;

 	command.iType = EMMFDevSoundCustomCommandCISendSlaveSyncCommand;

 	command.iCommand = aCommand;

 	command.iHandle = aHandle;

 	TPckgBuf<TA3FCustomInterfaceCommand> commandBuffer(command);

 	return iCustomChannel->SyncCustomCommand(KUidInterfaceMMFDevSound, commandBuffer, aPackageBuf, NULL);

 	}

 TInt CMMFDevSoundCIMuxUtility::SendSlaveSyncCommandResult(TInt aHandle, TInt aCommand, const TDesC8& aPackageBuf, TDes8& aResultBuf)

 	{

 	TA3FCustomInterfaceCommand command;

 	command.iType = EMMFDevSoundCustomCommandCISendSlaveSyncCommandResult;

 	command.iCommand = aCommand;

 	command.iHandle = aHandle;

 	TPckgBuf<TA3FCustomInterfaceCommand> commandBuffer(command);

 	return iCustomChannel->SyncCustomCommand(KUidInterfaceMMFDevSound, commandBuffer, aPackageBuf, &aResultBuf);

 	}

 void CMMFDevSoundCIMuxUtility::SendSlaveAsyncCommand(TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf)

 	{

 	CAsyncCommandCleanup *ciMuxAsyncCommandCleanup=NULL;

 	TRAPD(err,ciMuxAsyncCommandCleanup = CAsyncCommandCleanup::NewL(this,iCustomChannel));

 	TRequestStatus* status= &aStatus;

 	if(err == KErrNone)

 		{

 		err=iAsyncCustomCommandCleanup.Append(ciMuxAsyncCommandCleanup);

 		if(err == KErrNone)

 			{

 			ciMuxAsyncCommandCleanup->AsyncCustomCommand(EMMFDevSoundCustomCommandCISendSlaveAsyncCommand,aComPackage,aStatus,aPackageBuf,NULL);		

 			}

 		else

 			{

 			User::RequestComplete(status,err);

 			delete ciMuxAsyncCommandCleanup;

 			return;			

 			}	

 		}

 	else

 		{

 		User::RequestComplete(status,err);

 		return;	

 		}

 	}

 void CMMFDevSoundCIMuxUtility::SendSlaveAsyncCommandResult(TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf, TDes8& aResultBuf)

 	{

 	CAsyncCommandCleanup* ciMuxAsyncCommandCleanup=NULL;

 	TRAPD(err,ciMuxAsyncCommandCleanup = CAsyncCommandCleanup::NewL(this,iCustomChannel));

 	TRequestStatus* status= &aStatus;

 	if(err == KErrNone)

 		{

 		err=iAsyncCustomCommandCleanup.Append(ciMuxAsyncCommandCleanup);

 		if(err == KErrNone)

 			{

 			ciMuxAsyncCommandCleanup->AsyncCustomCommand(EMMFDevSoundCustomCommandCISendSlaveAsyncCommandResult,aComPackage,aStatus,aPackageBuf,&aResultBuf);

 			}

 		else

 			{

 			User::RequestComplete(status,err);

 			delete ciMuxAsyncCommandCleanup;

 			return;			

 			}	

 		}

 	else

 		{

 		User::RequestComplete(status,err);

 		return;

 		}

 	}

 CMMFDevSoundCIMuxUtility::CMMFDevSoundCIMuxUtility(MMMFDevSoundCustomInterfaceChannel* aCustomChannel)

 : iCustomChannel(aCustomChannel)

 	{

 	}

 void CMMFDevSoundCIMuxUtility::RemoveAsyncCommand(CAsyncCommandCleanup* aAsyncCustomCommandCleanup)

 	{

 	TInt index = iAsyncCustomCommandCleanup.Find(aAsyncCustomCommandCleanup);

 	__ASSERT_DEBUG( index != KErrNotFound,User::Invariant());

 	if(index > KErrNotFound)

 		{

 		iAsyncCustomCommandCleanup.Remove(index);

 		iAsyncCustomCommandCleanup.Compress();

 		}

 	return;

 	}

 CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup* CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::NewL(CMMFDevSoundCIMuxUtility* aMuxUtility,MMMFDevSoundCustomInterfaceChannel* aCustomChannel)

 	{

 	CAsyncCommandCleanup *self= new (ELeave) CAsyncCommandCleanup(aMuxUtility,aCustomChannel);

 	CleanupStack::PushL(self);

 	self->ConstructL();

 	CleanupStack::Pop(self);

 	return self;

 	}

 void CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::ConstructL()

 	{

 	iCommandBuffer = new (ELeave) TPckgBuf<TA3FCustomInterfaceCommand>;

 	}

 CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::CAsyncCommandCleanup(CMMFDevSoundCIMuxUtility* aMuxUtility,MMMFDevSoundCustomInterfaceChannel* aCustomChannel)

 :CActive(CActive::EPriorityStandard),iMuxUtility(aMuxUtility),iCustomChannel(aCustomChannel)

 	{

 	CActiveScheduler::Add(this);

 	}

 CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::~CAsyncCommandCleanup()

 	{

 	delete iCommandBuffer;

 	Cancel();

 	}

 void CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::AsyncCustomCommand(CMMFDevSoundCIMuxUtility::TMMFDevSoundCustomCommand aType,TMMFDevSoundCustomInterfaceCommandPackage& aComPackage, TRequestStatus& aStatus, const TDesC8& aPackageBuf, TDes8* aResultBuf)

 	{

 	iClientRequestStatus = &aStatus;

 	(*iCommandBuffer)().iType = aType;

 	(*iCommandBuffer)().iCommand = aComPackage().iCommand;

 	(*iCommandBuffer)().iHandle = aComPackage().iHandle;

 	*iClientRequestStatus = KRequestPending;

 	iCustomChannel->AsyncCustomCommand(KUidInterfaceMMFDevSound,iStatus, *iCommandBuffer, aPackageBuf, aResultBuf);

 	SetActive();

 	}

 void CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::RunL()

 	{

 	if(iClientRequestStatus)

 		{

 		User::RequestComplete(iClientRequestStatus,iStatus.Int());		

 		}

 	iClientRequestStatus = NULL;

 	iMuxUtility->RemoveAsyncCommand(this);

 	delete this;

 	}

 void CMMFDevSoundCIMuxUtility::CAsyncCommandCleanup::DoCancel()

 	{

 	}