1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/devsoundrefplugin/src/platsec/client/MmfAudioServerProxy.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,119 @@
     1.4 +// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.5 +// All rights reserved.
     1.6 +// This component and the accompanying materials are made available
     1.7 +// under the terms of "Eclipse Public License v1.0"
     1.8 +// which accompanies this distribution, and is available
     1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.10 +//
    1.11 +// Initial Contributors:
    1.12 +// Nokia Corporation - initial contribution.
    1.13 +//
    1.14 +// Contributors:
    1.15 +//
    1.16 +// Description:
    1.17 +//
    1.18 +
    1.19 +#include <f32file.h>
    1.20 +#include <e32math.h>
    1.21 +#include <s32mem.h>
    1.22 +
    1.23 +#include "MmfAudioServerProxy.h"
    1.24 +#include "MmfAudioServerStart.h"
    1.25 +#include "MmfBase.hrh"
    1.26 +#include "MmfAudioClientServer.h"
    1.27 +
    1.28 +#define KMaxServerNameLength 256
    1.29 +
    1.30 +static const TUid KUidAudioServer = {KUidMmfAudioServerDllUnicodeDefine};
    1.31 +const TInt KRetries = 5; 
    1.32 +const TInt KInitialTime = 100000;  //100ms
    1.33 +const TInt KTimeIncrement = 50000; // 50ms 
    1.34 +
    1.35 +
    1.36 +EXPORT_C TInt RMMFAudioServerProxy::Open()
    1.37 +	{
    1.38 +
    1.39 +	const TUidType serverUid(KNullUid,KNullUid,KUidAudioServer);
    1.40 +		
    1.41 +	// Assume the server is already running and attempt to create a session
    1.42 +	// 4 message slots
    1.43 +	TInt err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
    1.44 +														KMMFAudioServerMinorVersionNumber,
    1.45 +														KMMFAudioServerBuildVersionNumber));
    1.46 +	if(err == KErrNotFound)
    1.47 +		{
    1.48 +		// Server not running
    1.49 +		// Construct the server binary name
    1.50 +		TBuf<KMaxServerNameLength> serverFile;
    1.51 +		RProcess server;
    1.52 +
    1.53 +		_LIT(KEmpty,"");
    1.54 +
    1.55 +		err = server.Create(KAudioServerFileName, KEmpty, serverUid);
    1.56 +		if(err != KErrNone)
    1.57 +			return err;
    1.58 +		// Synchronise with the server
    1.59 +		TRequestStatus reqStatus;
    1.60 +		server.Rendezvous(reqStatus);
    1.61 +		
    1.62 +		if (reqStatus!=KRequestPending)
    1.63 +			{
    1.64 +			server.Kill(0);
    1.65 +			}
    1.66 +		else
    1.67 +			{
    1.68 +			// Start the test harness
    1.69 +			server.Resume();
    1.70 +			// Server will call the reciprocal static synchronise call
    1.71 +			}
    1.72 +		User::WaitForRequest(reqStatus); // wait for rendezvous or death
    1.73 +		server.Close();
    1.74 +		TInt reqStatusValue = reqStatus.Int();
    1.75 +		if(reqStatusValue != KErrNone)
    1.76 +			{
    1.77 +			if(reqStatusValue == KErrNoMemory || reqStatusValue == KErrNotFound)
    1.78 +				{
    1.79 +				// All error codes except KErrNoMemory and KErrNotFound are assumed
    1.80 +				// to be a duplicate server instance dying, then keep trying connection
    1.81 +				// to the server. This can happen when two servers attempt to start
    1.82 +				// at the same time.
    1.83 +				return reqStatusValue;
    1.84 +				}
    1.85 +			//Wait for sometime, then retry and creation session
    1.86 +			TInt waitTime = KInitialTime;
    1.87 +			for(TInt retries=0;retries<KRetries;retries++)
    1.88 +				{
    1.89 +				User::After(waitTime);
    1.90 +				waitTime+=KTimeIncrement;
    1.91 +				err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
    1.92 +														KMMFAudioServerMinorVersionNumber,
    1.93 +														KMMFAudioServerBuildVersionNumber));
    1.94 +				if(err==KErrNone)
    1.95 +					{
    1.96 +					//Session created successfully
    1.97 +					break;
    1.98 +					}	
    1.99 +				}			
   1.100 +			}
   1.101 +		else
   1.102 +			{
   1.103 +			//Create the root server session
   1.104 +			err = CreateSession(KAudioServerName, TVersion(KMMFAudioServerVersion,
   1.105 +														KMMFAudioServerMinorVersionNumber,
   1.106 +														KMMFAudioServerBuildVersionNumber));	
   1.107 +			}
   1.108 +		}
   1.109 +	return err;		
   1.110 +		
   1.111 +	}
   1.112 +
   1.113 +EXPORT_C TInt RMMFAudioServerProxy::SetDevSoundInfo()
   1.114 +	{
   1.115 +	return SendReceive(EMMFAudioLaunchRequests);
   1.116 +	}
   1.117 +
   1.118 +EXPORT_C TInt RMMFAudioServerProxy::GetDevSoundSessionHandle()
   1.119 +	{
   1.120 +	return SendReceive(EMMFDevSoundSessionHandle);
   1.121 +	}
   1.122 +