// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

// INCLUDE FILES

#include <e32svr.h>

#include <s32mem.h>

#include "featmgrclient.h"

#include "featmgrconfiguration.h"

#include "featmgrdebug.h"

#include "featmgrclientserver.h"

// CONSTANTS

const TInt KRetry( 2 );

// ============================= LOCAL FUNCTIONS ===============================

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// RFeatMgrClient::RFeatMgrClient

// C++ default constructor can NOT contain any code, that

// might leave.

// -----------------------------------------------------------------------------

//

RFeatMgrClient::RFeatMgrClient()

    : RSessionBase(), iFeaturePckg( NULL, 0, 0 )

    {

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::Connect

// Connects to server

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::Connect()

    {

    FUNC_LOG

    // Try this twice

    TInt retry( KRetry );

    TInt err( KErrNone );

    while ( retry > 0 )

        {

        // Try to create a FeatMgr Server session

        err = CreateSession( KServerProcessName, 

                             ServerVersion(), 

                             KDefaultAsyncSlots );

        LOG_IF_ERROR1( err, "RFeatMgrClient::Connect - CreateSession returned: %d", err );

        if ( err != KErrNotFound && err != KErrServerTerminated )

            {

            // KErrNone or unrecoverable error

            retry = 0;

            }

        else

            {

            // Return code was KErrNotFound or KErrServerTerminated.

            // Try to start a new FeatMgr Server

            err = StartServer();

            LOG_IF_ERROR1( err, "RFeatMgrClient::Connect - StartServer returned: %d", err );

            if ( err != KErrNone && err != KErrAlreadyExists )

                {

                // Unrecoverable error

                retry = 0;

                }

            }

        retry--;

        }

    return err;

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::StartServer

// Starts server.

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::StartServer()

    {

    FUNC_LOG

    TIMESTAMP( "StartServer start: " )

    RProcess server;

    const TUidType serverUid( KNullUid, KServerUid2, KNullUid );

    TInt err = server.Create( KServerExeName, // FeatMgrServer.exe

                           KNullDesC, // A descriptor containing data passed as 

                                      // an argument to the thread function of 

                                      // the new process's main thread, when it 

                                      // is first scheduled.

                           serverUid, // FeatMgr server UID

                           EOwnerProcess ); // Ownership of this process handle 

    // Return error code if we couldn't create a process

    if ( err == KErrNone )

        {

        // Rendezvous is used to detect server start

        TRequestStatus stat;

        server.Rendezvous( stat );

        if ( stat != KRequestPending )

            {

            server.Kill( KErrNone ); // Abort startup

            }

        else

            {

            server.Resume();  // Logon OK - start the server

            }

        INFO_LOG( "RFeatMgrClient::StartServer - Waiting server startup" );

        User::WaitForRequest( stat ); // Wait for start or death

        INFO_LOG( "RFeatMgrClient::StartServer - Server startup wait finished" );

        // We can't use the 'exit reason' if the server paniced as this

        // is the panic 'reason' and may be '0' which cannot be distinguished

        // from KErrNone

        err = (server.ExitType() == EExitPanic)? KErrGeneral : stat.Int();

        // We can close the handle now

        server.Close();        

        }

    TIMESTAMP( "StartServer end: " )

    return err;

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::ServerVersion

// Return version of server

// -----------------------------------------------------------------------------

//

TVersion RFeatMgrClient::ServerVersion() const 

    {

    return TVersion( KServerVersionMajor, KServerVersionMinor, KServerVersionBuild );

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::FeatureSupported()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::FeatureSupported( TFeatureEntry& aFeature ) const

    {  

    TPckg<TFeatureEntry> pckg( aFeature );

    TPckgBuf<TInt> pckgRet;

    TInt retval = SendReceive(EFeatMgrFeatureSupported, TIpcArgs( &pckg, &pckgRet ));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::FeatureSupported - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG2( "RFeatMgrClient::FeatureSupported - uid %d, supported %d",

                            aFeature.FeatureUid().iUid, pckgRet() );   

    return pckgRet();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::FeaturesSupported()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::FeaturesSupported( RFeatureArray& aFeatures )

    {  

    TPckgBuf<TInt> pckg;

    TInt retval( KErrNone );

    TRAP( retval, SendRcvFeatureArrayL( aFeatures, pckg() ) );

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::FeaturesSupported - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::FeaturesSupported - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::EnableFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::EnableFeature( TUid aFeature ) const

    {  

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrEnableFeature, TIpcArgs(aFeature.iUid, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::EnableFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::EnableFeature - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::DisableFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::DisableFeature( TUid aFeature ) const

    {  

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrDisableFeature, TIpcArgs(aFeature.iUid, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::DisableFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::DisableFeature - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::SetFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::SetFeature( TUid aFeature, TBool aEnable, TInt aData ) const

    {  

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrSetFeatureAndData, TIpcArgs(

        aFeature.iUid, aEnable, aData, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::SetFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::SetFeature - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::SetFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::SetFeature( TUid aFeature, TInt aData ) const

    {  

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrSetFeatureData, TIpcArgs(

        aFeature.iUid, aData, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::SetFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::SetFeature - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::AddFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::AddFeature( TFeatureEntry aFeature ) const

    {  

    TPckg<TFeatureEntry> pckg( aFeature );

    TPckgBuf<TInt> pckgRet;

    TInt retval = SendReceive(EFeatMgrAddFeature, TIpcArgs(&pckg, &pckgRet));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::AddFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::AddFeature - return %d", pckgRet() );

    return pckgRet();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::DeleteFeature()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::DeleteFeature( TUid aFeature ) const

    {  

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrDeleteFeature, TIpcArgs(aFeature.iUid, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::DeleteFeature - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::DeleteFeature - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::ListSupportedFeaturesL()

// -----------------------------------------------------------------------------

//

void RFeatMgrClient::ListSupportedFeaturesL( RFeatureUidArray& aSupportedFeatures )

    {  

    // Reset as array might contain old data.

    aSupportedFeatures.Reset();

    TInt retry( 5 );

    TInt err( KErrNone );

    TInt count;

    TPckg<TInt> sizePckg( count );

    while ( retry > 0 )

        {

        User::LeaveIfError( SendReceive( EFeatMgrNumberOfSupportedFeatures, 

            TIpcArgs( &sizePckg ) ) );

        HBufC8* buf = HBufC8::NewLC( count * sizeof( TInt ) );

        TPtr8 ptr = buf->Des();

        err = SendReceive( EFeatMgrListSupportedFeatures, TIpcArgs( count, &ptr ) );

        LOG_IF_ERROR1( err, "RFeatMgrClient::ListSupportedFeaturesL - SendReceive error %d", err );

        INFO_LOG1( "RFeatMgrClient::ListSupportedFeaturesL - count %d", count );

        if ( err == KErrNone )

            {

            aSupportedFeatures.ReserveL( count );

            for ( TInt i = 0; i < count; i++ )

                {

                TPtrC8 featurePtr = ptr.Mid( i * sizeof( TUid ), sizeof( TUid ) );

                TUid featureId = TUid::Uid( 0 );                    

                TPckg<TUid> feature( featureId );

                feature.Copy( featurePtr );

                aSupportedFeatures.AppendL( featureId );

                }

            retry = 0;

            }

        else if ( err == KErrServerBusy )

            {

            retry--;       

            }

        else

            {

            User::Leave( err );

            }

        CleanupStack::PopAndDestroy( buf );

        }   

    User::LeaveIfError( err );

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::ReRequestNotification(TUid&, TRequestStatus&)

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::ReRequestNotification( TUid& aFeatUid, TRequestStatus& aStatus )

    {

    TPckgBuf<TInt> pckg;

    TInt retval( KErrNone );

	iFeaturePckg.Set( (TUint8*) &aFeatUid.iUid, sizeof(TUid), sizeof(TUid) );

	TIpcArgs args( &iFeaturePckg );

	SendReceive( EFeatMgrReqNotify, args, aStatus );

    return retval;

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::RequestNotification(RFeatureUidArray&, TUid&, TRequestStatus&)

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::RequestNotification( RFeatureUidArray& aFeatures, 

        TUid& aFeatUid, TRequestStatus& aStatus )

    {

    TPckgBuf<TInt> pckg;

    TInt retval( KErrNone );

    TRAP( retval, SendUidArrayL( aFeatures, pckg() ) );

    if ( retval == KErrNone )

        {

    	iFeaturePckg.Set( (TUint8*) &aFeatUid.iUid, sizeof(TUid), sizeof(TUid) );

    	TIpcArgs args( &iFeaturePckg );

        SendReceive( EFeatMgrReqNotify, args, aStatus );

        }

    else

        {

        ERROR_LOG1( "RFeatMgrClient::RequestNotification - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::RequestNotification - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::RequestNotifyCancel(TUid)

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::RequestNotifyCancel( TUid aFeature ) const

    {

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrReqNotifyCancel, TIpcArgs(aFeature.iUid, &pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::RequestNotifyCancel - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::RequestNotifyCancel - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::RequestNotifyCancelAll()

// -----------------------------------------------------------------------------

//

TInt RFeatMgrClient::RequestNotifyCancelAll() const

    {

    TPckgBuf<TInt> pckg;

    TInt retval = SendReceive(EFeatMgrReqNotifyCancelAll, TIpcArgs(&pckg));

    if ( retval != KErrNone )

        {

        ERROR_LOG1( "RFeatMgrClient::RequestNotifyCancelAll - SendReceive error %d", retval );

        return retval;

        }

    INFO_LOG1( "RFeatMgrClient::RequestNotifyCancelAll - return %d", pckg() );

    return pckg();

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::SendUidArrayL()

// -----------------------------------------------------------------------------

//

void RFeatMgrClient::SendUidArrayL( RFeatureUidArray& aFeatures, TInt &retval)

    {

    FUNC_LOG

    INFO_LOG1( "RFeatMgrClient::SendUidArrayL - Send %d features", aFeatures.Count() );

    TInt size = aFeatures.Count() * sizeof(TUid);

	CBufBase* buffer = CBufFlat::NewL( size );

	CleanupStack::PushL( buffer );

	buffer->ResizeL( size );

    RBufWriteStream stream( *buffer );

    CleanupClosePushL( stream );

    TInt count = aFeatures.Count();

    // Write each field in array to stream

    for(TInt i = 0; i < count; i++)

        {

        stream.WriteUint32L( aFeatures[i].iUid );

        }

    stream.CommitL();

    // Write transfer buffer to server

	TPtr8 pBuffer(buffer->Ptr(0));

	TPckgBuf<TInt> pckg;

	TIpcArgs args( count, &pBuffer, &pckg );

	TInt sendErr = SendReceive( EFeatMgrReqNotifyUids, args );

	retval = pckg();

    CleanupStack::PopAndDestroy( &stream );

    CleanupStack::PopAndDestroy( buffer );

	User::LeaveIfError( sendErr );

    }

// -----------------------------------------------------------------------------

// RFeatMgrClient::SendRcvFeatureArrayL()

// -----------------------------------------------------------------------------

//

void RFeatMgrClient::SendRcvFeatureArrayL( RFeatureArray& aFeatures, TInt &retval)

    {

    FUNC_LOG

    INFO_LOG1( "RFeatMgrClient::SendRcvFeatureArrayL - Send %d features", aFeatures.Count() );

    TInt size = aFeatures.Count() * sizeof(TFeatureEntry);

	CBufBase* buffer = CBufFlat::NewL( size );

	CleanupStack::PushL( buffer );

	buffer->ResizeL( size );

    RBufWriteStream stream( *buffer );

    CleanupClosePushL( stream );

    TInt count = aFeatures.Count();

    // Write each field in array to stream

    for(TInt i = 0; i < count; i++)