/*

* Copyright (c) 2008 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:  Implementation of client side session.

*

*/

#include <e32svr.h>

#include <data_caging_path_literals.hrh>

#include "hwrmhapticssession.h"

#include "hwrmhapticsconfiguration.h"

#include "hwrmhapticsclientserver.h"

#include "hwrmhapticstrace.h"

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

// Connects to server

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

//

TInt RHWRMHapticsSession::Connect()

    {

   COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect()" ) ) );

    TInt err = MakeConnection();

    // Create proper service on server side. i.e. initialize

    // server components

    if ( err == KErrNone )

        {

        err = SendReceive( EHWRMHapticsService );

        }

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect - return(%d)" ), err ) );        

    return err;

    }

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

// Connects to server (ASYNC)

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

//

void RHWRMHapticsSession::Connect( TRequestStatus& aStatus )

    {

   COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect()" ) ) );

    TInt err = MakeConnection();

    // Create proper service on server side. i.e. initialize

    // server components

    if ( err == KErrNone )

        {

        SendReceive( EHWRMHapticsService, aStatus );

        }

    else

        {

        TRequestStatus* status = &aStatus;

        User::RequestComplete( status, err );

        }

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::Connect - return(%d)" ), err ) );

    }

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

// Calls SendReceive with given parameters.

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

//

TInt RHWRMHapticsSession::ExecuteOperation( 

                                            TInt aCommand, 

                                            const TIpcArgs& aArgs ) const

    {

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation(0x%x)" ), aCommand ) );

    TInt retval = SendReceive( aCommand, aArgs );

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation - return %d" ), retval ) );

    return retval;

    }

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

// Calls SendReceive with given parameter.

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

//

TInt RHWRMHapticsSession::ExecuteOperation( TInt aCommand ) const

    {

    COMPONENT_TRACE( _L( "RHWRMHapticsSession::ExecuteOperation" ) );

    TInt retval = SendReceive( aCommand );

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteOperation - return %d" ), retval ) );

    return retval;

    }

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

// Calls SendReceive with given parameters.

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

//

void RHWRMHapticsSession::ExecuteAsyncOperation(

                                            TInt aCommand, 

                                            const TIpcArgs& aArgs, 

                                            TRequestStatus& aStatus ) const

    {

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteAsyncOperation - commandId(%d), aStatus(%d)" ), aCommand, aStatus.Int() ) );

    SendReceive( aCommand, aArgs, aStatus );

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ExecuteAsyncOperation - return" ) ) );

    }

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

// Starts server.

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

//

TInt RHWRMHapticsSession::StartServer() const

    {

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::StartServer()" ) ) );

    RProcess server;

    TInt ret = server.Create( ServerLocation(), KNullDesC );

    if ( ret != KErrNone ) // Loading failed.

        {

        return ret;

        }

    TRequestStatus status;

    server.Rendezvous( status );

    if ( status != KRequestPending )

        {

        server.Kill( 0 ); // Abort startup.

        server.Close();

        return KErrGeneral;

        }

    else

        {

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

        }

    User::WaitForRequest( status );

    server.Close();

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::StartServer - return %d" ), status.Int() ) );

    return status.Int();    

    }

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

// Returns the server location.

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

//

TFullName RHWRMHapticsSession::ServerLocation() const

    {

    TFullName fullPathAndName( KServerExeDrive );

    fullPathAndName.Append( KDC_PROGRAMS_DIR );

    fullPathAndName.Append( KServerExeName );

    COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::ServerLocation - return %S" ), &fullPathAndName ) );

    return fullPathAndName;

    }

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

// Returns the version of the server.

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

//

TVersion RHWRMHapticsSession::ServerVersion() const 

    {

    return TVersion( KServerVersionMajor, 

                     KServerVersionMinor,

                     KServerVersionBuild );

    }

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

// Makes connection to server.

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

//

TInt RHWRMHapticsSession::MakeConnection()

    {

    // Try connection twice, if not successful on the first attempt

    TInt retry( 2 );

    TInt err( KErrNone );

    while ( retry > 0 )

        {

        // try to create a session to the server

        err = CreateSession( KServerProcessName, 

                             ServerVersion(), 

                             KDefaultAsyncSlots );

        COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::MakeConnection - CreateSession returned: err(%d)" ), err ) );        

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

            {

            retry = 0; // KErrNone or unrecoverable error

            }

        else

            {

            // Return code was KErrNotFound or KErrServerTerminated.

            // Try to start the Haptics server

            err = StartServer();

            COMPONENT_TRACE( ( _L( "RHWRMHapticsSession::MakeConnection - StartServer returned: err(%d)" ), err ) );        

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

                {

                retry = 0; // Unrecoverable error

                }

            }

        retry--;

        }

    return err;    

    }

//  End of File