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os/mm/devsound/devsoundrefplugin/src/server/Policy/MmfAudioPolicySession.cpp
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution. 
     1 // Copyright (c) 2000-2009 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 "MmfAudioPolicySession.h"

    17 #include "MmfPolicyClientServer.h"

    18 #include "MmfAudioPolicyServer.h"

    19 #include "MmfDevSoundInfo.h"

    20 

    21 

    22 const TInt KEventQLimit=16; // maximum number of pending events per session

    23 

    24 CMMFAudioPolicySession* CMMFAudioPolicySession::NewL()

    25 	{

    26 	CMMFAudioPolicySession* self = new(ELeave) CMMFAudioPolicySession();

    27 	CleanupStack::PushL(self);

    28 	self->ConstructL();

    29 	CleanupStack::Pop();

    30 	return self;

    31 	}

    32 

    33 void CMMFAudioPolicySession::ConstructL()

    34 	{

    35 	iAudioPolicyRequest = new (ELeave) CMMFAudioPolicyRequest();

    36 	}

    37 

    38 CMMFAudioPolicySession::CMMFAudioPolicySession() : iEventsQue(_FOFF(TMMFAudioPolicyEventHolder,iLink)),

    39 			iNoMemoryEventHolder(TMMFAudioPolicyEvent(TMMFAudioPolicyEvent::EMMFAudioPolicyResourceNotification, KErrNoMemory, EMMFStateCompleted), EFalse)

    40 	{

    41 	}

    42 

    43 void CMMFAudioPolicySession::CreateL(const CMmfIpcServer& aServer)

    44 	{

    45 	iServer = STATIC_CAST(CMMFAudioPolicyServer*, (CONST_CAST(CMmfIpcServer*, &aServer)));

    46 	iServer->IncrementSessionCount();

    47 	CMmfIpcSession::CreateL(aServer);

    48 	iServer->IncrementSessionId();

    49 	iPolicySessionId = iServer->PolicySessionId();

    50 	// Get ptr to AudioPolicy from the server

    51 	iAudioPolicy = iServer->AudioPolicy();

    52 	iAudioPolicy->ReserveClientNumL(iServer->PolicySessionCount());

    53 	}

    54 

    55 CMMFAudioPolicyServer* CMMFAudioPolicySession::Server()

    56 	{

    57 	return STATIC_CAST(CMMFAudioPolicyServer*, iServer);

    58 	}

    59 

    60 CMMFAudioPolicySession::~CMMFAudioPolicySession()

    61 	{

    62 	delete iEventReceiver;

    63 	iEventReceiver=NULL;

    64 	ClearEventQ();

    65 	iAudioPolicyPrioritySettings.iState = EMMFStateClosed;

    66 	// Have session's CMMFAudioPolicyRequest object removed from list

    67 	if (iAudioPolicy != NULL)

    68 		{

    69 		iAudioPolicy->RemoveFromList(iPolicySessionId);

    70 		}

    71 	delete iAudioPolicyRequest;

    72 	if (iServer != NULL)

    73 		{

    74 		iServer->DecrementSessionCount();

    75 		iServer->StopNotificationTimer();

    76 		}

    77 	}

    78 	

    79 void CMMFAudioPolicySession::ClearEventQ()

    80 	{

    81 	while (!iEventsQue.IsEmpty())

    82 		{

    83 		TMMFAudioPolicyEventHolder* heldEvent = iEventsQue.First();

    84 		iEventsQue.Remove(*heldEvent);

    85 		if (heldEvent == &iNoMemoryEventHolder)

    86 			{

    87 			iNoMemoryEventUsed = EFalse;

    88 			}		

    89 		if (heldEvent->iShallBeDeleted)

    90 			{

    91 			delete heldEvent;

    92 			}

    93 		--iEventQSize;

    94 		}	

    95 	}

    96 

    97 void CMMFAudioPolicySession::ServiceL(const RMmfIpcMessage& aMessage)

    98 	{

    99 	if (iEventQSize > KEventQLimit)

   100 		{

   101 		aMessage.Panic(KMMFAudioPolicyPanicCategory, EMMFAudioPolicySessionEventQueueOverflow);

   102 		return;

   103 		}

   104 		

   105 	TBool complete = EFalse;

   106 	switch(aMessage.Function())

   107 		{

   108 	case EMMFPolicyMakeRequest:

   109 		MakeRequestL(aMessage);

   110 		aMessage.Complete(KErrNone);

   111 		break;

   112 	case EMMFPolicySetDevSoundInfo:

   113 		complete = SetDevSoundInfoL(aMessage);

   114 		break;

   115 	case EMMFPolicyUpdateState:

   116 		complete = UpdateStateL(aMessage);

   117 		break;

   118 	case EMMFPolicyReceiveEvents:

   119 		complete = ReceiveEventsL(aMessage);

   120 		break;

   121 	case EMMFPolicyCancelReceiveEvents:

   122 		complete = CancelReceiveEvents();

   123 		break;

   124 	case EMMFPolicyGetPlayFormatsSupported:

   125 		complete = GetPlayFormatsSupportedL(aMessage);

   126 		break;

   127 	case EMMFPolicyGetRecordFormatsSupported:

   128 		complete = GetRecordFormatsSupportedL(aMessage);

   129 		break;

   130 	case EMMFPolicyGetPlayFormat:

   131 		complete = GetPlayFormatL(aMessage);

   132 		break;

   133 	case EMMFPolicyGetRecordFormat:

   134 		complete = GetRecordFormatL(aMessage);

   135 		break;

   136 	case EMMFPolicyLaunchRequests:

   137 		complete = LaunchRequest();

   138 		break;

   139 	case EMMFPolicyRequestResourceNotification:

   140 		complete = RequestResourceNotificationL(aMessage);

   141 		break;

   142 	case EMMFPolicyCancelRequestResourceNotification:

   143 		complete = CancelRequestResourceNotificationL(aMessage);

   144 		break;

   145 	case EMMFPolicyStopNotification:

   146 		complete = StopNotificationL(aMessage);

   147 		break;

   148 	case EMMFPolicyGetResourceNotificationEvent:

   149 		complete = GetResourceNotificationEventL(aMessage);

   150 		break;

   151 	default:

   152 		User::Leave(KErrNotSupported);

   153 		break;

   154 		}

   155 	if(complete)

   156 		{

   157 		aMessage.Complete(KErrNone);

   158 		}

   159 	}

   160 

   161 void CMMFAudioPolicySession::MakeRequestL(const RMmfIpcMessage& aMessage)

   162 	{

   163 	TMMFAudioPolicyPrioritySettingsPckg settingsPckg;

   164 	MmfMessageUtil::ReadL(aMessage, 0, settingsPckg);

   165 

   166 	iAudioPolicyRequest->SetPriority(settingsPckg().iPriority);

   167 	iAudioPolicyRequest->SetPref(settingsPckg().iPref);

   168 	iAudioPolicyRequest->SetState(settingsPckg().iState);

   169 

   170 	iAudioPolicyRequest->SetCapabilities(settingsPckg().iCapabilities);

   171 	

   172 	// Set session Id in Request

   173 	iAudioPolicyRequest->SetPolicySessionId(iPolicySessionId);

   174 	iAudioPolicy->MakeRequest(iAudioPolicyRequest);

   175 	}

   176 

   177 TBool CMMFAudioPolicySession::UpdateStateL(const RMmfIpcMessage& aMessage)

   178 	{

   179 	TMMFAudioPolicyPrioritySettingsPckg settingsPckg;

   180 	MmfMessageUtil::ReadL(aMessage, 0, settingsPckg);

   181 

   182 	iAudioPolicy->ModifyEntry(iPolicySessionId, settingsPckg().iState); 

   183 	return ETrue;

   184 	}

   185 

   186 void CMMFAudioPolicySession::SendEventToClient(const TMMFAudioPolicyEvent& aEvent)

   187 	{

   188 	if (iEventReceiver)

   189 		{

   190 		iEventReceiver->SendEvent(aEvent);

   191 		delete iEventReceiver;

   192 		iEventReceiver=NULL;

   193 		}

   194 	else 

   195 		{

   196 		if (++iEventQSize > KEventQLimit) // check if Q is not full

   197 			{

   198 			return; // we'll panic that bad client later

   199 			}

   200 		TMMFAudioPolicyEventHolder* heldEvent = new TMMFAudioPolicyEventHolder(aEvent, ETrue);

   201 

   202 		if (heldEvent==NULL && !iNoMemoryEventUsed)

   203 			{

   204 			heldEvent=&iNoMemoryEventHolder;

   205 			iNoMemoryEventUsed = ETrue;

   206 			}

   207 		if (heldEvent)

   208 			{

   209 			iEventsQue.AddLast(*heldEvent);

   210 			}

   211 		}

   212 	}

   213 

   214 TBool CMMFAudioPolicySession::SetDevSoundInfoL(const RMmfIpcMessage& aMessage)

   215 	{

   216 	TMMFDevSoundInfoPckg devSoundInfoPckg;

   217 	MmfMessageUtil::ReadL(aMessage, 0, devSoundInfoPckg);

   218 	iDevSoundId = devSoundInfoPckg().iDevSoundId;

   219 	return ETrue;

   220 	}

   221 

   222 TBool CMMFAudioPolicySession::ReceiveEventsL(const RMmfIpcMessage& aMessage)

   223 	{

   224 	if (iEventReceiver)

   225 		User::Leave(KErrAlreadyExists);

   226 	iEventReceiver = CMMFAudioPolicyEventReceiver::NewL(aMessage);

   227 #if defined(ALLOW_POLICY_DEBUG)	

   228 	RDebug::Print(_L("Sess. ID=%d listen to events"),iPolicySessionId);

   229 #endif	

   230 	//send the next cached event (if any) to the client

   231 	if (!iEventsQue.IsEmpty())

   232 		{

   233 		TMMFAudioPolicyEventHolder* heldEvent = iEventsQue.First();

   234 		iEventReceiver->SendEvent(heldEvent->iEvent);

   235 		iEventsQue.Remove(*heldEvent);

   236 		if (heldEvent == &iNoMemoryEventHolder)

   237 			{

   238 			iNoMemoryEventUsed = EFalse;

   239 			}

   240 		--iEventQSize;

   241 		if (heldEvent->iShallBeDeleted)

   242 			{

   243 			delete heldEvent;

   244 			}

   245 		delete iEventReceiver;

   246 		iEventReceiver=NULL;

   247 		}

   248 	return EFalse;

   249 	}

   250 

   251 TBool CMMFAudioPolicySession::CancelReceiveEvents()

   252 	{

   253 	delete iEventReceiver;

   254 	iEventReceiver = NULL;

   255 	return ETrue;

   256 	}

   257 

   258 TBool CMMFAudioPolicySession::GetPlayFormatsSupportedL(const RMmfIpcMessage& aMessage)

   259 	{

   260 	RMdaDevSound::TSoundFormatsSupportedBuf aPlayFormatsSupported;

   261 	aPlayFormatsSupported = iAudioPolicy->MdaHwInfo()->GetPlayFormatsSupported();

   262 	MmfMessageUtil::WriteL(aMessage, 0, aPlayFormatsSupported);

   263 	return ETrue;

   264 	}

   265 

   266 TBool CMMFAudioPolicySession::GetRecordFormatsSupportedL(const RMmfIpcMessage& aMessage)

   267 	{

   268 	RMdaDevSound::TSoundFormatsSupportedBuf aRecordFormatsSupported;

   269 	aRecordFormatsSupported = iAudioPolicy->MdaHwInfo()->GetRecordFormatsSupported();

   270 	MmfMessageUtil::WriteL(aMessage, 0, aRecordFormatsSupported);

   271 	return ETrue;

   272 	}

   273 

   274 TBool CMMFAudioPolicySession::GetPlayFormatL(const RMmfIpcMessage& aMessage)

   275 	{

   276 	RMdaDevSound::TCurrentSoundFormatBuf aPlayFormat;

   277 	aPlayFormat = iAudioPolicy->MdaHwInfo()->GetPlayFormat();

   278 	MmfMessageUtil::WriteL(aMessage, 0, aPlayFormat);

   279 	return ETrue;

   280 	}

   281 

   282 TBool CMMFAudioPolicySession::GetRecordFormatL(const RMmfIpcMessage& aMessage)

   283 	{

   284 	RMdaDevSound::TCurrentSoundFormatBuf aRecordFormat;

   285 	aRecordFormat = iAudioPolicy->MdaHwInfo()->GetRecordFormat();

   286 	MmfMessageUtil::WriteL(aMessage, 0, aRecordFormat);

   287 	return ETrue;

   288 	}

   289 

   290 TBool CMMFAudioPolicySession::LaunchRequest()

   291 	{

   292 	iAudioPolicy->LaunchRequest( iAudioPolicyRequest->PolicySessionId() );

   293 	return ETrue;

   294 	}

   295 	

   296 TBool CMMFAudioPolicySession::RequestResourceNotificationL(const RMmfIpcMessage& aMessage)

   297 	{

   298 	TMMFAudioPolicyResourceNotificationSettingsPckg notificationPckg;

   299 	MmfMessageUtil::ReadL(aMessage, 0, notificationPckg);

   300 	iAudioPolicyRequest->SetNotificationEvent(notificationPckg().iNotificationUid);

   301 	iAudioPolicyRequest->SetRequestDataL(notificationPckg().iNotificationDelay);

   302 	iAudioPolicy->SetNotification(iPolicySessionId,notificationPckg().iNotificationUid);

   303 	return ETrue;

   304 	}

   305 

   306 TBool CMMFAudioPolicySession::CancelRequestResourceNotificationL(const RMmfIpcMessage& aMessage)

   307 	{

   308 	TMMFAudioPolicyResourceNotificationSettingsPckg notificationPckg;

   309 	MmfMessageUtil::ReadL(aMessage, 0, notificationPckg);

   310 	iAudioPolicyRequest->ResetNotificationEvent(notificationPckg().iNotificationUid);

   311 	iAudioPolicy->SetNotification(iPolicySessionId,KNullUid);

   312 	return ETrue;

   313 	}

   314 

   315 TBool CMMFAudioPolicySession::StopNotificationL(const RMmfIpcMessage& /*aMessage*/)

   316 	{

   317 	iServer->StopNotificationTimer();

   318 	return ETrue;

   319 	}

   320 	

   321 TBool CMMFAudioPolicySession::GetResourceNotificationEventL(const RMmfIpcMessage& aMessage) const

   322 	{

   323 	TMMFAudioPolicyResourceNotificationSettingsPckg notificationPckg;

   324 	notificationPckg().iNotificationUid 	= iAudioPolicyRequest->NotificationEvent();

   325 	MmfMessageUtil::WriteL(aMessage, 0, notificationPckg);

   326 	return ETrue;

   327 	}

   328 	

   329 CMMFAudioPolicyEventReceiver* CMMFAudioPolicyEventReceiver::NewL(const RMmfIpcMessage& aMessage)

   330 	{

   331 	return new(ELeave) CMMFAudioPolicyEventReceiver(aMessage);

   332 	}

   333 

   334 CMMFAudioPolicyEventReceiver::~CMMFAudioPolicyEventReceiver()

   335 	{

   336 	if (iNeedToCompleteMessage)

   337 		{

   338 		iMessage.Complete(KErrDied);

   339 		}

   340 	}

   341 

   342 void CMMFAudioPolicyEventReceiver::SendEvent(const TMMFAudioPolicyEvent& aEvent)

   343 	{

   344 	TMMFAudioPolicyEventPckg eventpckg(aEvent);

   345 	TInt err = MmfMessageUtil::Write(iMessage, 0, eventpckg);

   346 	iMessage.Complete(err);

   347 	iNeedToCompleteMessage = EFalse;			

   348 	}

   349 	

   350 void CMMFAudioPolicyEventReceiver::SendEvent(const TMMFEvent& aEvent)

   351 	{

   352 	TMMFEventPckg eventpckg(aEvent);

   353 	TInt err = MmfMessageUtil::Write(iMessage, 0, eventpckg);

   354 	iMessage.Complete(err);

   355 	iNeedToCompleteMessage = EFalse;

   356 	}

   357 

   358 CMMFAudioPolicyEventReceiver::CMMFAudioPolicyEventReceiver(const RMmfIpcMessage& aMessage) : 

   359 	iMessage(aMessage), iNeedToCompleteMessage(ETrue)

   360 	{

   361 	}

   362 

   363 CMMFAudioPolicyRequest::CMMFAudioPolicyRequest():

   364 									iPolicySessionId(KErrNotFound),

   365 									iReqDataPtr(KNullDesC8)

   366 	{

   367 	iNotificationEventUid = KNullUid;

   368 	}

   369 

   370 CMMFAudioPolicyRequest::~CMMFAudioPolicyRequest() 

   371 	{

   372 	delete iRequestData;

   373 	}

   374 

   375 void CMMFAudioPolicyRequest::SetRequestDataL(const TDesC8& aRequestData)

   376 	{

   377 	iReqDataPtr.Set(KNullDesC8);

   378 	if (aRequestData.Length() == 0)

   379 		{

   380 		return;

   381 		}

   382 	if (iRequestData==NULL || (iRequestData && iRequestData->Des().MaxLength()<aRequestData.Length()))

   383 		{

   384 		delete iRequestData;

   385 		iRequestData = NULL;

   386 		iRequestData = aRequestData.AllocL();

   387 		}

   388 	else

   389 		{

   390 		iRequestData->Des().Copy(aRequestData);

   391 		}

   392 	iReqDataPtr.Set(*iRequestData);

   393 	}

   394 

   395 

   396
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