1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/mm/devsound/a3fdevsound/src/mmfaudioserverproxy/mmfaudioserverproxy.cpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,148 @@
     1.4 +// Copyright (c) 2006-2009 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 +
    1.20 +
    1.21 +#include <f32file.h>
    1.22 +#include <e32math.h>
    1.23 +#include <s32mem.h>
    1.24 +
    1.25 +#include "mmfaudioserverproxy.h"
    1.26 +#include "mmfaudioserverdecs.h"
    1.27 +#include <a3f/mmfaudiosvruids.hrh>
    1.28 +
    1.29 +
    1.30 +static const TUid KUidAudioServer = {KUidA3fAudioServerUID};
    1.31 +const TInt KRetries = 5; 
    1.32 +const TInt KInitialTime = 100000;  //100ms
    1.33 +const TInt KTimeIncrement = 50000; // 50ms 
    1.34 +
    1.35 +_LIT_SECURITY_POLICY_C1(KServerHasDRMRights, ECapabilityDRM);
    1.36 +
    1.37 +// -----------------------------------------------------------------------------
    1.38 +// RMMFAudioServerProxy::OpenSessionToTrustedAudioServer
    1.39 +//
    1.40 +// -----------------------------------------------------------------------------
    1.41 +//	
    1.42 +TInt RMMFAudioServerProxy::OpenSessionToTrustedAudioServer()
    1.43 +	{
    1.44 +	return CreateSession(KAudioServerName,
    1.45 +                                TVersion(KMMFAudioServerVersion,
    1.46 +                                KMMFAudioServerMinorVersionNumber,
    1.47 +                                KMMFAudioServerBuildVersionNumber),
    1.48 +                                -1, // Global pool
    1.49 +                                EIpcSession_Unsharable,
    1.50 +                                &KServerHasDRMRights,
    1.51 +                                NULL); // NULL required for synchronous behaviour
    1.52 +	}	
    1.53 +
    1.54 +// -----------------------------------------------------------------------------
    1.55 +// RMMFAudioServerProxy::Open
    1.56 +//
    1.57 +// -----------------------------------------------------------------------------
    1.58 +//
    1.59 +EXPORT_C TInt RMMFAudioServerProxy::Open()
    1.60 +	{
    1.61 +	const TUidType serverUid(KNullUid,KNullUid,KUidAudioServer);
    1.62 +	// Assume the server is already running and attempt to create a session
    1.63 +	TInt err = OpenSessionToTrustedAudioServer();
    1.64 +	
    1.65 +	if(err == KErrNotFound)
    1.66 +		{
    1.67 +		// Server not running
    1.68 +		// Construct the server binary name
    1.69 +		RProcess server;
    1.70 +
    1.71 +		_LIT(KEmpty,"");
    1.72 +
    1.73 +		err = server.Create(KAudioServerFileName, KEmpty, serverUid);
    1.74 +		if(err != KErrNone)
    1.75 +			{
    1.76 +			return err;
    1.77 +			}
    1.78 +		// Synchronise with the server
    1.79 +		TRequestStatus reqStatus;
    1.80 +		server.Rendezvous(reqStatus);
    1.81 +
    1.82 +		if (reqStatus!=KRequestPending)
    1.83 +			{
    1.84 +			server.Kill(0);
    1.85 +			}
    1.86 +		else
    1.87 +			{
    1.88 +			// Start the test harness
    1.89 +			server.Resume();
    1.90 +			// Server will call the reciprocal static synchronise call
    1.91 +			}
    1.92 +
    1.93 +		User::WaitForRequest(reqStatus); // wait for rendezvous or death
    1.94 +		server.Close();
    1.95 +		TInt reqStatusValue = reqStatus.Int();
    1.96 +
    1.97 +		if(reqStatusValue != KErrNone)
    1.98 +			{
    1.99 +			if(reqStatusValue == KErrNoMemory || reqStatusValue == KErrNotFound)
   1.100 +				{
   1.101 +				// All error codes except KErrNoMemory and KErrNotFound are assumed
   1.102 +				// to be a duplicate server instance dying, then keep trying
   1.103 +				// connection to the server. This can happen when two servers
   1.104 +				// attempt to start at the same time.
   1.105 +				return reqStatusValue;
   1.106 +				}
   1.107 +			//Wait for sometime, then retry and creation session
   1.108 +			TInt waitTime = KInitialTime;
   1.109 +			for(TInt retries=0;retries<KRetries;retries++)
   1.110 +				{
   1.111 +				User::After(waitTime);
   1.112 +				waitTime+=KTimeIncrement;
   1.113 +				err = OpenSessionToTrustedAudioServer();				
   1.114 +				
   1.115 +				if(err==KErrNone)
   1.116 +					{
   1.117 +					//Session created successfully
   1.118 +					break;
   1.119 +					}	
   1.120 +				}			
   1.121 +			}
   1.122 +		else
   1.123 +			{
   1.124 +			// Create the root server session
   1.125 +            err = OpenSessionToTrustedAudioServer();
   1.126 +			}
   1.127 +		}
   1.128 +	return err;
   1.129 +	}
   1.130 +
   1.131 +// -----------------------------------------------------------------------------
   1.132 +// RMMFAudioServerProxy::SetDevSoundInfo
   1.133 +//
   1.134 +// -----------------------------------------------------------------------------
   1.135 +//
   1.136 +EXPORT_C TInt RMMFAudioServerProxy::SetDevSoundInfo()
   1.137 +	{
   1.138 +	return SendReceive(EMMFAudioLaunchRequests);
   1.139 +	}
   1.140 +
   1.141 +// -----------------------------------------------------------------------------
   1.142 +// RMMFAudioServerProxy::GetDevSoundSessionHandle
   1.143 +//
   1.144 +// -----------------------------------------------------------------------------
   1.145 +//
   1.146 +EXPORT_C TInt RMMFAudioServerProxy::GetDevSoundSessionHandle()
   1.147 +	{
   1.148 +	return SendReceive(EMMFDevSoundSessionHandle);
   1.149 +	}
   1.150 +
   1.151 +// End of File