/*

* Copyright (c) 2010 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 "SearchServerConfiguration.h"

#include "CSearchServer.h"

#include "SearchServerCommon.h"

#include "CSearchServerSession.h"

#include "CCPixIdxDb.h"

#include "CHouseKeepingHandler.h"

#include "SearchServerLogger.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "csearchserverTraces.h"

#endif

// Server security policy

// iRangeCount of TPolicy

const TUint KServerPolicyRangeCount = 6;

// Search command related element index

const TUint8 KSearchElementIndex = 0;

// Indexing command related element index

const TUint8 KIndexingElementIndex = 1;

// iRanges of TPolicy 

const TInt KServerPolicyRanges[KServerPolicyRangeCount] =

{

        0,                              // Subsession creation related messages

        ESearchServerSearch,            // Search related messages

        ESearchServerAdd,               // Indexing related messages

        ESearchServerCancelAll,         // Cancellation

        ESearchServerDatabaseDefine,    // Database define

        ESearchServerSetQueryParser+1      // Unsupported messages 

};

// iElementsIndex of TPolicy

const TUint8 KServerPolicyElementIndex[KServerPolicyRangeCount] =

{

        CPolicyServer::EAlwaysPass,

        KSearchElementIndex,

        KIndexingElementIndex,

        CPolicyServer::EAlwaysPass,

        KIndexingElementIndex,

        CPolicyServer::ENotSupported

};

// iElements of TPolicy

const CPolicyServer::TPolicyElement KServerPolicyElements[] =

{

        {_INIT_SECURITY_POLICY_C1(ECapabilityReadUserData), CPolicyServer::EFailClient },

        {_INIT_SECURITY_POLICY_C1(ECapabilityWriteUserData), CPolicyServer::EFailClient }

};

// TPolicy for policy server

const CPolicyServer::TPolicy KServerPolicy =

{

        CPolicyServer::EAlwaysPass, // Connects always pass

        KServerPolicyRangeCount,

        KServerPolicyRanges,

        KServerPolicyElementIndex,

        KServerPolicyElements

};

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

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

// CSearchServer::NewL()

// Two-phased constructor.

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

//

CSearchServer* CSearchServer::NewL()

	{

	CSearchServer* searchServer = CSearchServer::NewLC();

	CleanupStack::Pop(searchServer);

	return searchServer;

	}

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

// CSearchServer::NewLC()

// Two-phased constructor.

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

//

CSearchServer* CSearchServer::NewLC()

	{

	CSearchServer* searchServer = new ( ELeave ) CSearchServer( CActive::EPriorityStandard );

	CleanupStack::PushL(searchServer);

	searchServer->ConstructL();

	return searchServer;

	}

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

// CSearchServer::ConstructL()

// Symbian 2nd phase constructor can leave.

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

//

void CSearchServer::ConstructL()

	{

	OstTraceFunctionEntry0( CSEARCHSERVER_CONSTRUCTL_ENTRY );

	CPIXLOGSTRING("Creating search server");

	RProcess process;

    process.SetPriority( EPriorityBackground );

    process.Close();

	// Create new container index

	iContainerIndex = CObjectConIx::NewL();

	// Create new house keeping handler

	iHouseKeepingHandler = CHouseKeepingHandler::NewL();

	iHouseKeepingHandler->StartL();

	// Initialize the OpenC search

	CCPixIdxDb::InitializeL();

	StartL(KSearchServerName);

	OstTraceFunctionExit0( CSEARCHSERVER_CONSTRUCTL_EXIT );

	}

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

// CSearchServer::CSearchServer()

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

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

//

CSearchServer::CSearchServer(TInt aPriority) :

	CPolicyServer(aPriority, KServerPolicy),

	iState( EUp ), 

	iSessionCount( 0 ) 

	{

	// Implementation not required

	}

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

// CSearchServer::~CSearchServer()

// Destructor.

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

//

CSearchServer::~CSearchServer()

	{

	OstTrace0( TRACE_NORMAL, CSEARCHSERVER_CSEARCHSERVER, "Deleting search server" );

	CPIXLOGSTRING("Deleting search server");

	// Delete the container index

	delete iContainerIndex;

	// Delete house keeping handler

	delete iHouseKeepingHandler;

	// Uninitialize the CPix API

	CCPixIdxDb::Shutdown();

	}

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

// CSearchServer::AddSessionL()

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

//

void CSearchServer::AddSession()

	{

	iSessionCount++; 

	}

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

// CSearchServer::RemoveSessionL()

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

//

void CSearchServer::RemoveSession()

	{

	iSessionCount--;

	if ( iState == EShuttingDown )

		{

		CActiveScheduler::Stop(); 

		}

	}

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

// CSearchServer::ShutDownL()

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

//

void CSearchServer::ShutDown()

	{

	iState = EShuttingDown; 

	if ( iSessionCount == 0 )

		{

		CActiveScheduler::Stop(); 

		}

	}

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

// CSearchServer::NewContainerL()

// Create new container index for sessions

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

//

CObjectCon* CSearchServer::NewContainerL()

{

	return iContainerIndex->CreateL();

}

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

// CSearchServer::NewContainerL()

// Create new container index for sessions

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

//

void CSearchServer::RemoveContainer(CObjectCon* aContainer)

{

	iContainerIndex->Remove( aContainer );

}

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

// CSearchServer::NewSessionL()

// Creates a time server session.

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

//

CSession2* CSearchServer::NewSessionL(const TVersion& aVersion,

		const RMessage2& /*aMessage*/) const

	{

	// Check we are the right version

	if ( !User::QueryVersionSupported(TVersion(KSearchServerMajorVersionNumber,

			KSearchServerMinorVersionNumber, KSearchServerBuildVersionNumber), aVersion) )

		{

		User::Leave(KErrNotSupported);

		}

	// Make new session

	return CSearchServerSession::NewL();

	}

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

// CSearchServer::StopHouseKeeping()

// Stop housekeeping

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

//

void CSearchServer::StopHouseKeeping()

    {

    iHouseKeepingHandler->StopHouseKeeping();

    }

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

// CSearchServer::ContinueHouseKeeping()

// Continue housekeeping

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

//

void CSearchServer::ContinueHouseKeeping()

    {

    iHouseKeepingHandler->ContinueHouseKeeping();

    }

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

// CSearchServer::ForceHouseKeeping()

// Force housekeeping

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

//

void CSearchServer::ForceHouseKeeping()

    {

    iHouseKeepingHandler->ForceHouseKeeping();

    }

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

// CSearchServer::PanicClient()

// Panics the client.

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

//

void CSearchServer::PanicClient(const RMessage2& aMessage,

		TSearchServerPanic aPanic)

	{

	aMessage.Panic(KSearchServer, aPanic);

	}

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

// CSearchServer::PanicServer()

// Panics the server.

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

//

void CSearchServer::PanicServer(TSearchServerPanic aPanic)

	{

	User::Panic(KSearchServer, aPanic);

	}

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

// CSearchServer::ThreadFunctionL()

// Second stage startup for the server thread.

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

//

void CSearchServer::ThreadFunctionL()

	{

	// Construct active scheduler

	CActiveScheduler* activeScheduler = new ( ELeave ) CActiveScheduler;

	CleanupStack::PushL(activeScheduler);

	// Install active scheduler

	CActiveScheduler::Install(activeScheduler);

	// Construct server

	CSearchServer* server = CSearchServer::NewLC();

    // Rename the thread.

    RProcess::Rendezvous(KErrNone);           

	// Signal client thread if started by such

	RSemaphore semaphore;

	TInt err = semaphore.OpenGlobal(KSearchServerSemaphoreName);

	if (KErrNone == err)

		{

		// Started by client

		semaphore.Signal();

		semaphore.Close();

		}

	else

		{

		if (KErrNotFound == err)

			{

			// Started by S60 starter

			}

		else

			{

			// Unknown error, leave

			User::Leave(err);

			}

		}

	// Start handling requests

	CActiveScheduler::Start();

	// Cleanup

	CleanupStack::PopAndDestroy( server );

	CleanupStack::PopAndDestroy( activeScheduler );

	}

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

// CSearchServer::ThreadFunction()

// Main function for the server thread.

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

//

void CSearchServer::ThreadFunction()

	{

    __UHEAP_MARK;

	CTrapCleanup* cleanupStack = CTrapCleanup::New();

	if ( !cleanupStack )

		{

		PanicServer(ECreateTrapCleanup);

		}

	TRAPD( err, ThreadFunctionL() );

	if ( err )

		{

		PanicServer(ESrvCreateServer);

		}

	delete cleanupStack;

    __UHEAP_MARKEND;    

	}

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

// E32Main()

// Provides the API for the operating system to start the executable.

// Returns the address of the function to be called.

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

//

TInt E32Main()

	{

	CSearchServer::ThreadFunction();

	return KErrNone;

	}

// End of File