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