sl@0: // Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: // All rights reserved.
sl@0: // This component and the accompanying materials are made available
sl@0: // under the terms of "Eclipse Public License v1.0"
sl@0: // which accompanies this distribution, and is available
sl@0: // at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: //
sl@0: // Initial Contributors:
sl@0: // Nokia Corporation - initial contribution.
sl@0: //
sl@0: // Contributors:
sl@0: //
sl@0: // Description:
sl@0: //
sl@0: 
sl@0: #include <f32file.h>
sl@0: #include <e32math.h>
sl@0: #include <s32mem.h>
sl@0: 
sl@0: #include "MmfAudioServerProxy.h"
sl@0: #include "MmfAudioServerStart.h"
sl@0: #include "MmfBase.hrh"
sl@0: #include "MmfAudioClientServer.h"
sl@0: 
sl@0: #define KMaxServerNameLength 256
sl@0: 
sl@0: static const TUid KUidAudioServer = {KUidMmfAudioServerDllUnicodeDefine};
sl@0: const TInt KRetries = 5; 
sl@0: const TInt KInitialTime = 100000;  //100ms
sl@0: const TInt KTimeIncrement = 50000; // 50ms 
sl@0: 
sl@0: 
sl@0: EXPORT_C TInt RMMFAudioServerProxy::Open()
sl@0: 	{
sl@0: 
sl@0: 	const TUidType serverUid(KNullUid,KNullUid,KUidAudioServer);
sl@0: 		
sl@0: 	// Assume the server is already running and attempt to create a session
sl@0: 	// 4 message slots
sl@0: 	TInt err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
sl@0: 														KMMFAudioServerMinorVersionNumber,
sl@0: 														KMMFAudioServerBuildVersionNumber));
sl@0: 	if(err == KErrNotFound)
sl@0: 		{
sl@0: 		// Server not running
sl@0: 		// Construct the server binary name
sl@0: 		TBuf<KMaxServerNameLength> serverFile;
sl@0: 		RProcess server;
sl@0: 
sl@0: 		_LIT(KEmpty,"");
sl@0: 
sl@0: 		err = server.Create(KAudioServerFileName, KEmpty, serverUid);
sl@0: 		if(err != KErrNone)
sl@0: 			return err;
sl@0: 		// Synchronise with the server
sl@0: 		TRequestStatus reqStatus;
sl@0: 		server.Rendezvous(reqStatus);
sl@0: 		
sl@0: 		if (reqStatus!=KRequestPending)
sl@0: 			{
sl@0: 			server.Kill(0);
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			// Start the test harness
sl@0: 			server.Resume();
sl@0: 			// Server will call the reciprocal static synchronise call
sl@0: 			}
sl@0: 		User::WaitForRequest(reqStatus); // wait for rendezvous or death
sl@0: 		server.Close();
sl@0: 		TInt reqStatusValue = reqStatus.Int();
sl@0: 		if(reqStatusValue != KErrNone)
sl@0: 			{
sl@0: 			if(reqStatusValue == KErrNoMemory || reqStatusValue == KErrNotFound)
sl@0: 				{
sl@0: 				// All error codes except KErrNoMemory and KErrNotFound are assumed
sl@0: 				// to be a duplicate server instance dying, then keep trying connection
sl@0: 				// to the server. This can happen when two servers attempt to start
sl@0: 				// at the same time.
sl@0: 				return reqStatusValue;
sl@0: 				}
sl@0: 			//Wait for sometime, then retry and creation session
sl@0: 			TInt waitTime = KInitialTime;
sl@0: 			for(TInt retries=0;retries<KRetries;retries++)
sl@0: 				{
sl@0: 				User::After(waitTime);
sl@0: 				waitTime+=KTimeIncrement;
sl@0: 				err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
sl@0: 														KMMFAudioServerMinorVersionNumber,
sl@0: 														KMMFAudioServerBuildVersionNumber));
sl@0: 				if(err==KErrNone)
sl@0: 					{
sl@0: 					//Session created successfully
sl@0: 					break;
sl@0: 					}	
sl@0: 				}			
sl@0: 			}
sl@0: 		else
sl@0: 			{
sl@0: 			//Create the root server session
sl@0: 			err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
sl@0: 														KMMFAudioServerMinorVersionNumber,
sl@0: 														KMMFAudioServerBuildVersionNumber));	
sl@0: 			}
sl@0: 		}
sl@0: 	return err;		
sl@0: 		
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt RMMFAudioServerProxy::SetDevSoundInfo()
sl@0: 	{
sl@0: 	return SendReceive(EMMFAudioLaunchRequests);
sl@0: 	}
sl@0: 
sl@0: EXPORT_C TInt RMMFAudioServerProxy::GetDevSoundSessionHandle()
sl@0: 	{
sl@0: 	return SendReceive(EMMFDevSoundSessionHandle);
sl@0: 	}
sl@0: